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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

Commission File No. 1-12091

MILLENNIUM CHEMICALS INC.

(Exact name of Registrant as specified in its charter)

Registrant’s telephone number, including area code: (713) 652-7200

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of the Registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  x

Indicate by check mark whether the Registrant is an accelerated filer (as defined in Exchange Act Rule 12b-2).    Yes  x    No  ¨

There were 65,141,231 shares of the Registrant’s common stock issued and outstanding on June 30, 2004, the last business day of the Registrant’s most recently completed second fiscal quarter. The aggregate market value of the voting stock held by non-affiliates of the Registrant on June 30, 2004, based on the closing price of the Registrant’s common stock on the New York Stock Exchange composite tape on that date, was $1,120,397,683.

There is no longer an established public trading market for the Registrant’s equity securities. All of the Registrant’s equity securities are held by affiliates.

The Registrant meets the conditions set forth in General Instructions I(1)(a) and (b) of Form 10-K and, therefore, is filing this form with a reduced disclosure format.

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TABLE OF CONTENTS

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PART I

Items 1 and 2. Business and Properties

MILLENNIUM

Overview of the Business

Millennium Chemicals Inc. (“Millennium”) is a global chemical company, with total 2004 revenues of $1.9 billion, and assets of $2.5 billion as of December 31, 2004. On November 30, 2004, Lyondell Chemical Company (“Lyondell”) acquired Millennium in a stock-for-stock business combination. As a result of the business combination, Millennium is now a wholly owned subsidiary of Lyondell.

Millennium reports its results of operations in two business segments: inorganic chemicals; and ethylene, co-products and derivatives. Millennium’s inorganic chemicals segment primarily produces titanium dioxide (“TiO₂”). The inorganic chemicals segment also produces titanium tetrachloride (“TiCl₄”), titanyl sulfate (“TiOSO₄”), ultra-fine TiO₂, silica gel and cadmium-based pigments. Millennium’s ethylene, co-products and derivatives segment comprises its acetyls business and its equity investment in Equistar. Millennium’s acetyls business produces vinyl acetate monomer (“VAM”), acetic acid and methanol, which is a raw material for acetic acid. Equistar produces ethylene and its co-products, which include propylene, butadiene, benzene and toluene. Equistar’s derivatives include polyethylene, ethylene oxide (“EO”), ethylene glycol (“EG”), EO derivatives, and ethanol and polypropylene. Equistar also produces methyl tertiary butyl ether (“MTBE”) and alkylate. Millennium owns 29.5% of Equistar, the balance of which is owned by Lyondell through other subsidiaries. Millennium accounts for its interest in Equistar using the equity method. Millennium also produces fragrance and flavor chemicals.

Prior to Lyondell’s November 30, 2004 acquisition of Millennium, Millennium reported its results of operations in three segments: titanium dioxide and related products; acetyls; and specialty chemicals. For additional segment information and for geographic information for each of the years in the three-year period ended December 31, 2004, see Note 20 of the Notes to the Consolidated Financial Statements.

Additional Information Available

Millennium was incorporated under the laws of Delaware in 1996. Its principal executive offices are located at 1221 McKinney Street, Suite 700, Houston, Texas 77010 (Telephone: (713) 652-7200). Millennium’s website address is www.millenniumchem.com. Millennium’s Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and all amendments to those reports are available free of charge through Millennium’s website as soon as reasonably practicable after those reports are electronically filed with or furnished to the Securities and Exchange Commission.

In addition, Millennium has adopted a “code of ethics,” as defined in Item 406(b) of Regulation S-K. Millennium’s code of ethics, known as its Business Ethics and Conduct Policy, is now part of the overall Lyondell Business Ethics and Conduct Policy. It applies to all members of Millennium’s Board of Directors and to all officers and employees of Millennium, including Millennium’s principal executive officer, principal financial officer, principal accounting officer and controller. Millennium provides a copy of the Business Ethics and Conduct Policy on its website free of charge. In addition, Millennium intends to satisfy the disclosure requirements of Item 5.05 of Form 8-K regarding any amendment to, or waiver from, a provision of the Business Ethics and Conduct Policy that applies to Millennium’s principal executive officer, principal financial officer, principal accounting officer or controller and relates to any element of the definition of code of ethics set forth in Item 406(b) of Regulation S-K by posting such information on its website.

Information contained on Millennium’s website or any other website is not incorporated into this Annual Report and does not constitute a part of this Annual Report.

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INORGANIC CHEMICALS SEGMENT

Overview

TiO₂ is the primary product of the inorganic chemicals segment, which accounted for approximately 71% of Millennium’s total revenues in 2004, 69% in 2003 and 73% in 2002. TiO₂ is a white pigment used for imparting whiteness, brightness, opacity and durability in a wide range of products, including paint and coatings, plastics, paper and elastomers.

As of December 31, 2004, Millennium’s annual TiO₂ production capacity, using the chloride process and the sulfate process discussed below, was approximately 670,000 metric tons. Unless otherwise specified, annual processing capacities were calculated by estimating the number of days in a typical year that a production unit of a plant is expected to operate, after allowing downtime for regular maintenance, and multiplying that number by an amount equal to the unit’s optimal daily output. Because the processing capacity of a production unit is an estimated amount, actual production volumes may be more or less than capacities set forth below.

TiO₂ is produced in two crystalline forms: rutile and anatase. Rutile TiO₂ has better opacification and tinting strength in many applications, and some rutile TiO₂ products also provide better resistance to the harmful effects of weather. As a result, rutile TiO₂ is the preferred form for use in paint and coatings, ink and plastics. Anatase TiO₂ has a bluer undertone and is less abrasive than rutile and, therefore, is often preferred for use in paper, ceramics, rubber and man-made fibers.

TiO₂ is manufactured using two different technologies. The newer chloride process is a high-temperature process in which chlorine is used to produce an intermediate TiO₂ rutile crystal pigment, with greater purity and higher control over the size distribution of the pigment particles than the alternative sulfate process permits. In general, the chloride process is also less intensive than the sulfate process in terms of labor and energy. Because much of the chlorine can be recycled, the chloride process produces less waste than does the sulfate process.

The sulfate process is a wet chemical process that uses concentrated sulfuric acid to produce either an intermediate TiO₂ anatase or rutile crystal pigment. The sulfate process generates higher volumes of waste, including iron sulfate and spent sulfuric acid.

Once an intermediate TiO₂ pigment has been produced by either the chloride or sulfate process, it is processed into a product with specific performance characteristics for particular end-use applications through proprietary processes involving surface treatment with various chemicals and combinations of milling and micronizing.

Millennium’s TiO₂ plants are located in the four major world markets for TiO₂: North America, South America, Western Europe and the Asia/Pacific region. The North American plants, consisting of one in Baltimore, Maryland and two in Ashtabula, Ohio, use the chloride process. The plant in Salvador, Bahia, Brazil uses the sulfate process. The segment also owns a mineral sands mine located at Mataraca, Paraiba, Brazil, which supplies the Brazilian plant with titanium ores. The mine has over two million metric tons of recoverable reserves. The mine produced approximately 114,000 metric tons of ilmenite, a titanium-bearing ore, in 2004. Approximately 103,000 metric tons of ilmenite produced at the mine were used internally by the Salvador TiO₂ plant, while approximately 700 metric tons were sold to unrelated parties. The mine also produced approximately 20,000 metric tons of zircon and approximately 2,000 metric tons of natural rutile titanium ore, substantially all of which were sold to unrelated parties. The Stallingborough, United Kingdom plant uses the chloride process. The plants in France at Le Havre, Normandy and Thann, Alsace use the sulfate process. The Kemerton plant in Western Australia uses the chloride process.

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Millennium’s inorganic chemicals segment also produces a number of specialty and performance TiO₂-related products, some of which are manufactured at dedicated plants and others of which are manufactured at plants that also produce other TiO₂ products. These products include titanium tetrachloride (“TiCl₄”), titanyl sulfate (“TiOSO₄”), ultra-fine TiO₂, silica gel and cadmium-based pigments.

Raw Materials

Naturally occurring titanium-bearing ores such as ilmenite and natural rutile occur as sand or hard rock deposits in many parts of the world and are used as raw materials in the TiO₂ extraction process. Mining companies are increasingly treating ilmenite to extract iron and other minerals to produce slag or synthetic rutile with higher TiO₂ concentrations, resulting in lower amounts of wastes and by-products during processing by TiO₂ pigment plants. Generally, titanium-bearing ores are shipped by using bulk carriers from terminals in the country of origin to TiO₂ production plants, usually located near port facilities. Millennium obtains ores from a number of suppliers in South Africa, Australia, Canada, Brazil, India and Ukraine, generally pursuant to one- to six-year supply contracts expiring between 2005 and 2007. Rio Tinto Iron & Titanium Inc. (through its affiliates Richards Bay Iron & Titanium (Proprietary) Limited and QIT-Fer et Titane Inc.) and Iluka Resources Limited are the world’s largest producers of titanium ores and upgraded titaniferous raw materials and accounted for approximately 70% of the titanium ores and upgraded titaniferous raw materials purchased by Millennium in 2004.

Other major raw materials used in the production of TiO₂ are chlorine, caustic soda, coke, aluminum, sodium silicate, sodium aluminate, sulfuric acid, oxygen, nitrogen and natural gas. The number of sources for and availability of these materials is specific to the particular geographic region in which a facility is located. There are certain risks related to the acquisition of raw materials from less-developed or developing countries. See “Risks and Other Factors That May Affect Millennium, Its Subsidiaries and Its Joint Ventures—International Operations and Country Risks.”

A number of the raw materials used by Millennium in the production of TiO₂ and Millennium’s other inorganic chemicals products are provided by only a few vendors and, accordingly, if one significant supplier or a number of significant suppliers were unable to meet their obligations under present supply arrangements, Millennium could suffer reduced supplies and/or be forced to incur increased costs for these raw materials. For example, for the Australian plant, chlorine and caustic soda are obtained exclusively from one supplier under a long-term supply agreement. See “Risks and Other Factors That May Affect Millennium, Its Subsidiaries and Its Joint Ventures—Raw Materials and Energy Costs.” However, at the present time, chloride- and sulfate-process raw materials are available in sufficient quantities.

Marketing and Sales

Of the TiO₂ sold by Millennium in 2004, approximately 63% was sold to customers in the paint and coatings industry, approximately 24% to customers in the plastics industry, approximately 12% to customers in the paper industry, and approximately 1% to other customers. Millennium experiences some seasonality in its TiO₂ sales because, in general, its customers’ production of paint and coatings are greatest in the spring and summer months. TiO₂ generally is sold by Millennium at prices determined by market-based negotiation under contracts that range from two to five years, typically with automatic one-year extension provisions. TiO₂ is sold either directly to customers or, to a lesser extent, through agents or distributors, and is distributed by rail, truck and ocean carrier in either dry or slurry form.

No single inorganic chemicals customer accounted for 10% or more of Millennium’s total revenues in 2004. For geographic data, see Note 20 of Notes to the Consolidated Financial Statements.

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Competition and Industry Conditions

The bases for competition in the inorganic chemicals businesses are price, product quality, product performance, product delivery, customer service and reliability of supply. Certain inorganic chemicals competitors are more vertically integrated than Millennium’s inorganic chemicals businesses, producing titanium-bearing ores as well as TiO₂. Millennium’s inorganic chemicals businesses are vertically integrated at the Brazilian facility, which owns the titanium ore mine that supplies that facility. The major competitors in the TiO₂ business are E. I. du Pont de Nemours and Company (“DuPont”), Kerr-McGee Chemical Corporation (“Kerr-McGee Chemicals,” a unit of Kerr-McGee Corporation, both directly and through various joint ventures), Huntsman Tioxide (“Huntsman Tioxide,” a business segment of Huntsman International LLC), and Kronos Worldwide, Inc. (“Kronos”). Millennium estimates that collectively, as of December 31, 2004, DuPont, Millennium, Kerr-McGee Chemicals, Huntsman Tioxide and Kronos accounted for approximately 70% of the world’s TiO₂ production capacity. Millennium is the second largest producer of TiO₂ in the world, based on published rated capacity.

In certain applications, TiO₂ competes with other whitening agents that are generally less effective but less expensive. These alternate products include kaolin clays, calcium carbonate pigments, both ground and precipitated forms, and synthetic polymers materials.

Generally, new plant capacity additions in the TiO₂ industry are slow to develop because of the substantial capital expenditure required and the significant lead time (three to five years typically for a new plant) needed for planning, obtaining environmental approvals and permits, construction of manufacturing facilities and arranging for raw material supplies. Debottlenecking and other capacity expansions at existing plants require substantially less time and capital and can increase overall industry capacity.

ETHYLENE, CO-PRODUCTS AND DERIVATIVES SEGMENT

Millennium’s ethylene, co-products and derivatives segment comprises its acetyls business and its equity investment in Equistar.

Acetyls Business

Overview

The acetyls business includes VAM, acetic acid and methanol, which is a raw material for acetic acid. VAM and acetic acid are manufactured by Millennium at facilities in La Porte, Texas. VAM is used to produce a variety of polymers used in adhesives, water-based paint, textile coatings and paper coatings. Acetic acid is used to produce VAM, industrial solvents and a variety of other chemicals. Millennium also owns an 85% interest in La Porte Methanol Company, which produces methanol at a plant in La Porte, Texas.

Trade and related party sales of VAM accounted for approximately 16% of Millennium’s total revenues in 2004 and 2003 and 15% in 2002. Trade and related party sales of acetyls collectively accounted for approximately 24% of Millennium’s total revenues in 2004, 25% in 2003 and 21% in 2002.

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The following table outlines the acetyls business’ primary products, annual processing capacity at December 31, 2004, and the primary uses for such products. Unless otherwise specified, annual processing capacity was calculated by estimating the number of days in a typical year that a production unit of a plant is expected to operate, after allowing for downtime for regular maintenance, and multiplying that number by an amount equal to the unit’s optimal daily output based on the design raw material mix. Because the processing capacity of a production unit is an estimated amount, actual production volumes may be more or less than the capacities set forth below. Capacities shown include 100% of the capacity of joint venture facilities.

Raw Materials

The primary raw materials for the production of VAM are acetic acid and ethylene. Millennium obtains its entire requirements for acetic acid from its internal production and buys all of its ethylene requirements from Equistar under a long-term supply contract based on market prices. In 2004, Millennium used the majority of its acetic acid production to produce VAM.

The primary raw materials required for the production of acetic acid are carbon monoxide and methanol. Millennium purchases its carbon monoxide from Linde AG (“Linde”) pursuant to a long-term contract under which pricing is based primarily on cost of production. La Porte Methanol Company, which is 85% owned by Millennium and 15% owned by Linde, supplies all of Millennium’s requirements for methanol. Natural gas is the primary raw material required for the production of methanol and carbon monoxide.

Marketing and Sales

VAM is sold into domestic and export markets under contracts with terms of one to seven years, and also on a spot basis. Acetic acid that is not consumed internally for the production of VAM is sold into domestic and export markets under contracts with terms of one to five years, and also on a spot basis. Contract pricing generally is determined by market-based negotiation, market index or cost-based formulas. Millennium also sells VAM to Equistar and acetic acid to both Lyondell and Equistar at market-based pricing. In addition, Millennium has a long-term agreement with DuPont to convert acetic acid produced at Millennium’s La Porte, Texas plant into VAM through DuPont’s nearby VAM plant and to acquire all of the VAM production at DuPont’s plant not utilized internally by DuPont. The contract expires on December 31, 2006 but may be extended by mutual agreement thereafter from year-to-year. VAM and acetic acid are shipped by barge, ocean-going vessel, pipeline, tank car and tank truck. Millennium has bulk storage arrangements in Europe and Asia to better serve its customers’ requirements in those regions. Sales are made through a direct sales force, agents and distributors.

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The La Porte, Texas methanol facility is owned by La Porte Methanol Company, a partnership owned 85% by Millennium and 15% by Linde. Each party receives its respective share of the methanol production. Millennium uses the methanol as a raw material for acetic acid and also sells the methanol under contracts that range in term from one to three years and on a spot basis to large domestic customers. The product is shipped by barge and pipeline.

No single acetyls customer accounted for 10% or more of Millennium’s total revenues in 2004. For geographic data, see Note 20 of Notes to the Consolidated Financial Statements.

Competition and Industry Conditions

The bases for competition in the acetyls businesses are price, product performance, product quality, product delivery, reliability of supply and customer service. The acetyls businesses compete globally with other large producers of its products, including BP p.l.c. (“BP”), Celanese AG (“Celanese”), The Dow Chemical Company (“Dow”), Eastman Chemical Company, Methanex Corporation and Saudi Basic Industries Corp. Millennium is the second largest producer of VAM and acetic acid in North America, and the third largest producer worldwide, based on published rated production capacity.

Equity Investment in Equistar

Millennium owns a 29.5% interest in Equistar, a joint venture with Lyondell. Millennium accounts for its interest in Equistar as an equity investment. Equistar reports its results of operations in one segment: ethylene, co-products and derivatives.

Overview

Equistar can produce ethylene, co-products and derivatives at sixteen facilities located in six states. Ethylene co-products include propylene, butadiene, benzene and toluene. Derivatives include polyethylene, EO, EG, EO derivatives, and ethanol and polypropylene. Equistar also produces MTBE and alkylate. Ethylene, co-products and derivatives are fundamental to many segments of the economy, including the production of consumer products, packaging, housing and automotive components and other durable and nondurable goods.

Ethylene is the most significant petrochemical in terms of worldwide production volume and is the key building block for polyethylene and a large number of other chemicals, plastics and synthetics. Equistar can produce ethylene at seven sites located in four states. The Chocolate Bayou, Corpus Christi and Channelview, Texas plants use crude oil-based liquid raw materials, including naphtha, condensates and gas oils, to produce ethylene. The use of crude oil-based liquid raw materials results in the production of a significant amount of co-products such as propylene, butadiene, benzene and toluene. Based upon independent surveys, management believes that the Channelview facility is one of the lowest cash production cost ethylene facilities in the United States. The Morris, Illinois; Clinton, Iowa; Lake Charles, Louisiana; and La Porte, Texas plants are designed to consume primarily natural gas liquids, including ethane, propane and butane (collectively “NGLs”), to produce ethylene with some co-products such as propylene. The Corpus Christi and Channelview plants also may consume NGLs to produce ethylene, depending upon the relative economic advantage of the alternative raw materials. A comprehensive pipeline system connects Equistar’s Gulf Coast plants with major ethylene and co-products customers. Raw materials are sourced both internationally and domestically and are shipped via vessel and pipeline. The Lake Charles, Louisiana ethylene and co-products facility has been idled since the first quarter 2001, pending sustained improvement in market conditions. Trade and related party sales of ethylene accounted for approximately 12% of Equistar’s total revenues in 2004, 13% in 2003 and 11% in 2002.

Ethylene co-products are manufactured by Equistar primarily at four facilities in Texas. The Morris, Illinois; Clinton, Iowa; and Lake Charles, Louisiana facilities also can produce propylene. Trade and related party sales of propylene, which is used to produce polypropylene, acrylonitrile and propylene oxide, accounted for approximately 18% of Equistar’s total revenues in 2004, 16% in 2003 and 17% in 2002. Benzene is used to

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produce styrene, phenol and cyclohexane, which are used in the production of nylon, plastics, synthetic rubber and polystyrene. Trade and related party sales of benzene accounted for approximately 10% of Equistar’s total revenues in 2004 and less than 10% in 2003 and 2002.

Polyethylene is manufactured by Equistar using a variety of technologies at five facilities in Texas and at the Morris, Illinois and Clinton, Iowa facilities. Polyethylene is used in a variety of consumer and industrial products, including packaging film, trash bags, automotive parts, plastic bottles and caps and compounds for wire and cable insulation. The Morris and Clinton facilities enjoy a freight cost advantage over Gulf Coast facilities in delivering products to customers in the U.S. Midwest. Polyethylene includes high density polyethylene (“HDPE”), low density polyethylene (“LDPE”) and linear low density polyethylene (“LLDPE”). HDPE accounted for approximately 14% of Equistar’s total revenues in 2004, 15% in 2003 and 16% in 2002, and polyethylene (HDPE, LDPE and LLDPE collectively) accounted for approximately 26% of Equistar’s total revenues in 2004, 28% in 2003 and 29% in 2002.

EO and its primary derivative, EG, are produced at the Bayport facility located in Pasadena, Texas and through a 50/50 joint venture between Equistar and DuPont in Beaumont, Texas. The Bayport facility also produces other derivatives of EO, principally ethylene glycol ethers and ethanolamines. EG is used in antifreeze, polyester fibers, resins and films. EO and its other derivatives are used in many consumer and industrial end uses, such as detergents and surfactants, brake fluids and polyurethane seating and bedding foams.

The Morris, Illinois facility manufactures polypropylene using propylene produced as a co-product of Equistar’s ethylene production, as well as propylene purchased from unrelated parties. Polypropylene is sold for various applications in the automotive, housewares and appliance industries.

Equistar also produces performance polymer products, which include enhanced grades of polyethylene and polypropylene. Wire and cable insulating resins and compounds are performance polymers used to insulate copper and fiber optic wiring in power, telecommunication, computer and automobile applications. Many of Equistar’s polyethylene facilities can produce wire and cable insulating resins, some of which are compounded with additive materials at the facilities in La Porte, Texas and Fairport Harbor, Ohio. Automotive compound production was temporarily consolidated at the Fairport Harbor, Ohio facility and the automotive compound production unit at the La Porte, Texas facility was temporarily idled at the end of the first quarter 2004, pending sustained improvement in market conditions. Equistar believes that, over a business cycle, average selling prices and profit margins for performance polymers tend to be higher than average selling prices and profit margins for higher-volume commodity polyethylenes.

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The following table outlines Equistar’s primary products, annual processing capacity as of December 31, 2004, and the primary uses for such products. Unless otherwise specified, annual processing capacity was calculated by estimating the number of days in a typical year that a production unit of a plant is expected to operate, after allowing for downtime for regular maintenance, and multiplying that number by an amount equal to the unit’s optimal daily output based on the design raw material mix. Because the processing capacity of a production unit is an estimated amount, actual production volumes may be more or less than the capacities set forth below. Capacities shown include 100% of the capacity of joint venture facilities.

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Raw Materials

Raw material cost is the largest component of the total cost for the production of ethylene and co-products. The primary raw materials used are crude oil-based liquids (also referred to as “heavy liquids”) and NGLs. Crude oil-based liquids generally are delivered by ship or barge, and NGLs generally are delivered via pipeline.

Ethylene and co-products plants with the flexibility to consume a wide range of raw materials historically have had lower variable costs than those that are restricted in their raw material processing capability to NGLs. Crude oil-based liquids have had an historical cost advantage over NGLs such as ethane and propane, assuming the co-products were recovered and sold. Facilities using crude oil-based liquids historically have generated, on average, approximately four cents of additional variable margin per pound of ethylene produced compared to facilities restricted to using ethane. This margin advantage is based on an average of historical data over a period of years and is subject to short-term fluctuations, which can be significant. For example, during the fourth quarter 2003, when co-product values experienced seasonal weakness, the advantage dropped below average. However, the advantage rebounded strongly in 2004 as very strong co-product values overcame record high crude oil pricing to deliver the best annual average advantage in twenty years. Equistar has the capability to realize this margin advantage due to its ability to process crude oil-based liquids at the Channelview, Corpus Christi and Chocolate Bayou ethylene and co-products facilities.

The Channelview facility is particularly flexible because it can range from processing all crude oil-based liquids to processing a majority of NGLs. The Corpus Christi plant can range from processing predominantly crude oil-based liquids to processing predominantly NGLs. The Chocolate Bayou facility processes 100% crude oil-based liquids. The La Porte facility processes mainly lighter NGLs, but can process some butane, natural gasoline and light naphtha. The three other ethylene and co-products facilities process only NGLs.

As described above, management believes that this raw material flexibility is a key advantage in the production of ethylene and co-products. As a result, Equistar’s crude-oil based liquids requirements are purchased via a mix of contractual and spot arrangements from a variety of domestic and international sources. Spot market purchases are made in order to maintain raw material flexibility and to take advantage of raw material pricing opportunities. A large portion of Equistar’s NGLs requirements are purchased via contractual arrangements from a variety of sources, but NGLs also are purchased on the spot market. Equistar also obtains a portion of its crude oil-based liquids requirements from LCR at market-related prices. Equistar obtains all of its methanol requirements for ethylene and co-products from Lyondell at market-based prices. Also, Equistar purchases large amounts of natural gas to be used as energy for consumption in its business via market-based contractual arrangements with a variety of sources.

The primary raw material for the derivatives products is ethylene. The derivatives facilities generally can receive their ethylene directly from Equistar’s ethylene and co-products facilities via its pipeline system, pipelines owned by unrelated parties or on-site production. All of the ethylene used in Equistar’s polyethylene production is produced internally by Equistar’s ethylene and co-products facilities. However, the polyethylene plants at Chocolate Bayou, La Porte and Bayport, Texas are connected by pipeline to unrelated parties and could receive ethylene via exchanges or purchases. The polypropylene facility at Morris, Illinois receives propylene from Equistar’s ethylene and co-products facilities, as well as unrelated parties.

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The raw materials for ethylene, co-products and derivatives are, in general, commodity chemicals with numerous bulk suppliers and ready availability at competitive prices. Historically, raw material availability for ethylene, co-products and derivatives has not been an issue. For additional discussion regarding the effects of raw material pricing on recent operating results, see “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

Marketing and Sales

Ethylene produced by Equistar generally is consumed internally as a raw material in the production of derivatives, or is transferred by pipeline to related and unrelated parties. For the year ended December 31, 2004, approximately 90% of Equistar’s ethylene, based on sales dollars, was used by Equistar’s derivatives facilities or sold to related parties at market-related prices. The sales to related parties include significant ethylene sales to Occidental Chemical Corporation (a subsidiary of Occidental Petroleum Corporation, which owns approximately 17% of Lyondell’s outstanding common stock) during 2004 pursuant to a long-term ethylene supply agreement.

The co-products that are not consumed internally or sold to related parties generally are sold to customers with whom Equistar has had long-standing relationships. These sales generally are made under written agreements that typically provide for monthly negotiation of price and customer purchases of a specified minimum quantity.

Equistar consumes propylene in the production of polypropylene and also sells propylene to Lyondell at market-related prices. Equistar’s propylene production that is not consumed internally or sold to related parties generally is sold under contracts that have initial terms ranging from two to six years and that typically contain automatic one to two year extension provisions. In addition, pursuant to a long-term propylene supply arrangement entered into in 2003 with a subsidiary of Sunoco, Inc., Equistar supplies 700 million pounds of propylene annually to Sunoco. Under the arrangement, a majority of the propylene is supplied under a cost-based formula and the balance is supplied on a market-related basis. This 15-year supply arrangement replaced a previous contract under which Equistar supplied 400 million pounds of propylene annually to Sunoco at market-related prices. For additional discussion regarding the transactions with Sunoco, see “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

Equistar generally sells its butadiene under contracts that have initial terms of three to five years and that typically contain automatic one to two year extension provisions. Equistar sells benzene to Lyondell and toluene to LCR at market-related prices. Equistar’s benzene and toluene production that is not sold to related parties generally is sold under contracts that have initial terms ranging from three to five years and that typically contain automatic one-year extension provisions. Equistar also sells benzene produced by LCR, which it purchases from LCR at market-related prices. Equistar serves as LCR’s sole agent to market toluene produced by LCR and receives a marketing fee for such services.

Equistar at times purchases ethylene, propylene, benzene and butadiene for resale, when necessary, to satisfy customer demand for these products above production levels. Volumes of ethylene, propylene, benzene and butadiene purchased for resale can vary significantly from period to period. However, purchased volumes generally do not have a significant impact on profitability.

MTBE produced at one of the two Channelview units is sold to Lyondell and LCR at market-related prices. MTBE is processed for LCR at the second Channelview unit for a processing fee. In addition, MTBE produced at Chocolate Bayou is sold at market-related prices to Lyondell.

Most of the ethylene and propylene production of the Channelview, Chocolate Bayou, Corpus Christi, La Porte and Lake Charles facilities is shipped via a 1,430-mile pipeline system which has connections to numerous Gulf Coast ethylene and propylene consumers. This pipeline system, some of which is owned and some of which is leased by Equistar, extends from Corpus Christi to Mont Belvieu to Port Arthur, Texas as well as around the

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Lake Charles, Louisiana area. In addition, exchange agreements with other ethylene and co-products producers allow access to customers who are not directly connected to Equistar’s pipeline system. Some ethylene is shipped by railcar from Clinton, Iowa to Morris, Illinois and also to customers. A pipeline owned and operated by an unrelated party is used to transport ethylene from Morris, Illinois to Tuscola, Illinois. Some propylene is shipped by ocean-going vessel. Butadiene, benzene, toluene and other products are distributed by pipeline, railcar, truck, barge or ocean-going vessel.

Polyethylene products primarily are sold to an extensive base of established customers. Approximately two-thirds of the domestic polyethylene product volumes are sold to customers under contracts typically having a term of one to three years. The remainder of the polyethylene volume generally is sold under customary terms and conditions without formal contracts. In either case, in most of the continuous supply relationships, prices are subject to change upon mutual agreement.

EO and EG typically are sold under three- to five-year contracts, with market-based pricing. Glycol ethers, ethanolamines and brake fluids are sold primarily into the solvent and distributor markets at market prices. Ethanol and ethers primarily are sold under contracts at market prices. EO is shipped by railcar, and its derivatives are shipped by railcar, truck, isotank or ocean-going vessel.

Other derivatives products are primarily distributed via railcar. The vast majority of the derivatives products are sold in North America, primarily through Equistar’s sales organization. Sales agents are generally engaged to market the derivatives products in the rest of the world.

Other than Lyondell, which accounted for approximately 10% of Equistar’s total revenues in 2004, no single customer accounted for 10% or more of Equistar’s total revenues in 2004. For geographic data, see Note 20 of Notes to the Consolidated Financial Statements.

Competition and Industry Conditions

The bases for competition in the ethylene, co-products and derivatives businesses are price, product quality, product delivery, reliability of supply, product performance and customer service. Equistar’s ethylene and co-products compete with other large domestic producers of ethylene and co-products, including BP, Chevron Phillips Chemical Company LP (“ChevronPhillips”), Enterprise Products Partners L.P., Exxon Mobil Corporation (“ExxonMobil”), Huntsman Chemical Company (“Huntsman”) and Shell Chemical Company (“Shell”). Equistar’s derivatives products compete with large producers of derivatives, including BP, Celanese, ChevronPhillips, Dow, Eastman Chemical Company, ExxonMobil, Formosa Plastics Corporation, Huntsman, NOVA Chemicals Corporation, Total and Westlake Polymers. Industry consolidation, including the combinations of British Petroleum and Amoco, Exxon and Mobil, and Dow and Union Carbide and the formation of ChevronPhillips, has brought North American production capacity under the control of fewer, although larger, competitors.

Equistar’s ethylene rated capacity at December 31, 2004 was approximately 11.6 billion pounds per year, or approximately 15% of total North American production capacity. Based on published rated production capacities, Equistar is the second largest producer of ethylene in North America. North American ethylene rated capacity at December 31, 2004 was approximately 75 billion pounds per year. Approximately 77% of the total ethylene production capacity in North America is located along the Gulf Coast.

Based on published rated industry capacities, Equistar is the third largest producer of polyethylene in North America. The rated capacity of Equistar’s polyethylene units as of December 31, 2004 was approximately 5.8 billion pounds per year, or approximately 13% of total industry capacity in North America. There are many other North American producers of polyethylene, the most significant of which are ChevronPhillips, Dow and ExxonMobil.

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Profitability is affected not only by supply and demand for ethylene, co-products and derivatives, but also by raw material costs and vigorous price competition among producers, which may intensify due to, among other things, the addition of new capacity. In 2004, ethylene markets began a cyclical recovery from the downturn brought about by the prior three years’ of weak demand. The shutdown of two of a competitor’s Gulf Coast ethylene and co-products plants in 2003 and improving demand, driven by worldwide economic recovery, resulted in greatly improved industry operating rates in 2004. In general, demand is a function of economic growth in the United States and elsewhere in the world, which fluctuates. It is not possible to accurately predict the changes in raw material costs, market conditions, capacity utilization and other factors that will affect industry profitability in the future.

OTHER CHEMICALS

Millennium also produces fragrance and flavors chemicals. The Brunswick, Georgia and Jacksonville, Florida facilities manufacture terpene-based fragrance ingredients and flavor ingredients, primarily for the oral care markets. These products also are used in a number of other applications, including chemical reaction agents, or initiators, for the rubber industry and solvents and cleaners, such as pine oil, for the hard surface cleaner markets.

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PROPERTIES

Principal Manufacturing Facilities and Mine

The principal manufacturing facilities and mine are set forth below, and are identified by the principal segment or segments using the facility or mine. The facilities producing fragrance and flavors chemicals also are identified below. The facilities and mine are wholly owned, except as otherwise noted below.

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Other Locations

Millennium—Millennium leases warehouses, offices and its research facility in Baltimore, Maryland. Lyondell provides office space to Millennium for its executive offices and headquarters in downtown Houston, Texas as part of a shared services arrangement. Millennium owns or leases approximately 525 railcars for use in its businesses.

Equistar—Equistar has storage capacity for up to approximately 13 million barrels of NGLs, ethylene, propylene and other hydrocarbons in caverns within a salt dome in Mont Belvieu, Texas. There are an additional approximately three million barrels of ethylene and propylene storage with related brine facilities operated by Equistar on leased property in Markham, Texas.

Equistar uses an extensive pipeline system, some of which it owns and some of which it leases, extending from Corpus Christi to Mont Belvieu to Port Arthur and around the Lake Charles area. Equistar owns other pipelines in connection with its Chocolate Bayou, Corpus Christi, La Porte, Matagorda and Victoria facilities. Equistar uses a pipeline owned and operated by an unaffiliated party to transport ethylene from its Morris facility to its Tuscola facility. Equistar owns and leases several pipelines connecting the Channelview facility, the LCR refinery and the Mont Belvieu storage facility, which are used to transport raw materials, butylenes, hydrogen, butane, MTBE and unfinished gasolines. Equistar also owns a barge docking facility near the Channelview facility capable of berthing eight barges and related terminal equipment for loading and unloading raw materials and products. Equistar owns or leases approximately 9,070 railcars for use in its businesses.

Lyondell provides office space to Equistar for its executive offices and headquarters in downtown Houston, Texas as part of a shared services arrangement. In addition, Equistar owns facilities that house its research operations. Equistar also leases various sales facilities and storage facilities, primarily in the Gulf Coast area, for the handling of products.

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RESEARCH AND TECHNOLOGY; INTELLECTUAL PROPERTY

Millennium—Millennium conducts research principally at technology centers in Baltimore, Maryland; Stallingborough, United Kingdom; and Jacksonville, Florida. Millennium’s research and development expenditures were $21 million in 2004, $23 million in 2003 and $21 million in 2002, all of which were expensed as incurred.

Millennium maintains an extensive patent portfolio and continues to file new patent applications related to its TiO₂, acetyls and fragrance and flavor businesses. As of December 31, 2004, Millennium owned approximately 50 United States patents and approximately 90 worldwide patents. Millennium owns globally registered and unregistered trademarks, including the Millennium logo. Millennium does not regard its business as being materially dependent upon any single patent, trademark or license.

Equistar—Equistar conducts research and development principally at its technology centers in Cincinnati, Ohio and Chocolate Bayou, Texas. Equistar’s research and development expenditures were $34 million in 2004, $38 million in 2003 and $38 million in 2002, all of which were expensed as incurred.

Equistar maintains an extensive patent portfolio and continues to file new patent applications related to its businesses. As of December 31, 2004, Equistar owned approximately 235 United States patents and approximately 355 worldwide patents. Equistar owns globally registered and unregistered trademarks, including the Equistar logo. Equistar does not regard its business as being materially dependent upon any single patent, trademark or license.

EMPLOYEE RELATIONS

Millennium—At December 31, 2004, Millennium had approximately 3,420 full-time and part-time employees, approximately 1,230 of whom were located in the United States, approximately 1,120 of whom were located in Europe, approximately 695 of whom were located in Brazil, approximately 355 of whom were located in Australia and approximately 20 of whom were located in Asia. As of December 31, 2004, approximately 25% of the employees located in the U.S., approximately 75% of the employees located in Europe and substantially all of the employees located in Brazil were represented by labor unions. With the exception of annual salary negotiations for certain international represented sites, no union contracts need to be renegotiated in 2005. In addition to its own employees, Millennium uses the services of Lyondell and Equistar employees pursuant to shared services and loaned employee arrangements and also uses the services of independent contractors in the routine conduct of its business. Millennium believes that its relations with its employees are good.

Equistar—As of December 31, 2004, Equistar employed approximately 3,155 full-time and part-time employees. Approximately 5% of Equistar’s employees are covered by collective bargaining agreements. In addition to its own employees, Equistar uses the services of Lyondell and Millennium employees pursuant to shared services and loaned employee arrangements and also uses the services of independent contractors in the routine conduct of its business. Equistar believes that its relations with its employees are good.

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RISKS AND OTHER FACTORS THAT MAY AFFECT MILLENNIUM,

ITS SUBSIDIARIES AND ITS JOINT VENTURES

There are many factors that may affect the businesses and results of operations of Millennium, its subsidiaries and joint ventures. Some of these factors are discussed below. For additional discussion regarding factors that may affect the businesses and operating results of Millennium and its subsidiaries and joint ventures, see “Items 1 and 2. Business and Properties,” “Forward-Looking Statements,” “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Item 7A. Disclosure of Market and Regulatory Risk.”

Industry Cyclicality and Overcapacity

The historical operating results of Millennium and its joint ventures reflect the cyclical and volatile nature of the supply-demand balance in the chemical industry, and their future operating results continue to be affected by this cyclicality and volatility. This cyclical pattern results in volatile profits and cash flow over the business cycles.

Demand for TiO₂ has fluctuated from year to year. The TiO₂ industry also is sensitive to changes in its customers’ marketplaces, which are primarily the paint and coatings, plastics and paper industries. For example, in 2003, consolidations and negative business conditions within certain of those customer industries put pressure on prices and margins; however, in the second half of 2004, demand strengthened considerably, resulting in increased TiO₂ prices.

Demand for ethylene and its derivatives, and acetyls, also has fluctuated from year to year. These industries are particularly sensitive to capacity additions. These industries historically have experienced alternating periods of capacity shortages leading to tight supply, causing prices and profit margins to increase, followed by periods when substantial capacity is added, resulting in oversupply, declining capacity utilization rates and declining prices and profit margins.

The chemical industry has entered a period characterized by tight supply in many product areas and increased demand as the global economy continues to improve. Product growth has returned to historical levels and, in some cases, has exceeded them. As a result, the industry has seen a return to enhanced profitability, even in a world of volatile raw material and energy costs. However, the sustainability of these positive business conditions remains subject to uncertainty. The global economic and political environment continues to be uncertain, and negative changes could result in a decline in demand. When coupled with new capacity additions by some participants in the industry, especially those in the Middle East and Asia which are expected to startup in the middle to latter part of the decade, the current positive business conditions could be depressed, eventually leading to another period of oversupply and poor profitability.

Raw Materials and Energy Costs

Millennium and its joint ventures purchase large amounts of raw materials and energy for their businesses. The cost of these raw materials and energy, in the aggregate, represents a substantial portion of their operating expenses. The costs of raw materials and energy used for acetyls and Equistar’s products, and the energy costs for TiO₂, generally follow price trends of, and vary with the market conditions for, crude oil and natural gas, which may be highly volatile and cyclical. Raw material costs have increased through 2004 and remain at high levels. There have been in the past, and will likely be in the future, periods of time when Millennium and its joint ventures are unable to pass raw material cost increases on to customers quickly enough to avoid adverse impacts on their results of operations. In addition, customer consolidation has made it more difficult to pass cost increases along to customers. The results of operations of Millennium and its joint ventures have been, and could be in the future, significantly affected by increases and volatility in these costs. Cost increases may increase working capital needs, which could reduce liquidity and cash flow for Millennium and its joint ventures. See “Competitive Markets” below.

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In addition, higher North American natural gas prices relative to natural gas cost-advantaged regions, such as the Middle East, have diminished the ability of many domestic chemical producers to compete internationally since natural gas prices affect a significant portion of the industry’s raw materials and energy sources. This environment has in the past caused and may in the future cause a reduction in Equistar’s exports, and has in the past reduced and may in the future reduce the competitiveness of U.S. producers. It also has in the past increased the competition for sales of chemicals in North America, as U.S. production that would otherwise have been sold overseas was instead offered for sale domestically, resulting in excess supply and lower margins in North America, and may do so in the future.

Furthermore, for Millennium and its joint ventures, there are a limited number of suppliers for some of their raw materials and utilities and, in some cases, the number of sources for and availability of raw materials is specific to the particular geographic region in which a facility is located. For example, generally Millennium has purchased raw materials for its inorganic chemicals segment pursuant to one-year to six-year supply contracts that expire between 2005 and 2007. In 2004, Millennium purchased approximately 70% of its titanium ores and titaniferous raw materials from two suppliers, Rio Tinto Iron & Titanium Inc. (through its affiliates Richards Bay Iron & Titanium (Proprietary) Limited and QIT-Fer et Titane Inc.) and Iluka Resources Limited, under multiple year contractual commitments. In addition, Millennium obtains chlorine and caustic soda exclusively from one supplier for its Australian operations under a long-term supply agreement. Moreover, Millennium purchases all of its carbon monoxide for its acetyls from Linde AG pursuant to a long-term contract based primarily on the cost of production. Each of Millennium’s chloride TiO₂ manufacturing plants has long-term supply agreements for oxygen and nitrogen through either nearby suppliers dedicated to the site or through a direct pipeline arrangement. Each of these contracts is an exclusive supply contract. Accordingly, if one of these suppliers were unable to meet its obligations under present supply arrangements, Millennium could suffer reduced supplies or be forced to incur increased costs for its raw materials, which would have a direct negative impact on plant operations.

General Economic Conditions and Other External Factors

External factors beyond the control of Millennium and its joint ventures can cause volatility in the price of raw materials and other operating costs, as well as significant fluctuations in demand for their products and can magnify the impact of economic cycles on their businesses. Examples of external factors include: general economic conditions, international events and circumstances, competitor actions, and governmental regulation in the U.S. and abroad. Millennium believes that events in the Middle East have had a particularly adverse influence on its acetyls business and Equistar’s businesses in recent years and may continue to do so. In addition, a number of Millennium’s and its joint ventures’ products are highly dependent on durable goods markets, such as the housing and automotive markets, which also are cyclical. Many of Millennium’s and its joint ventures’ products are components of other chemical products that, in turn, are subject to the supply-demand balance of the chemical industry and general economic conditions. The global economy has continued to improve, increasing demand for Millennium’s and its joint ventures’ products and resulting in improved operating results as operations begin to approach full capacity. This has occurred even as the volatility and elevated level of prices for crude oil and natural gas have resulted in increased raw material costs. However, the impact of the factors cited above may once again cause a slowdown in the business cycle, reducing demand and lowering operating rates and, ultimately, reducing profitability. Although Millennium’s and its joint ventures’ access to capital currently is not impeded, these same risks could increase instability in the financial markets and make Millennium’s and its joint ventures’ ability to access capital more difficult.

Millennium and its joint ventures may reduce production at or idle a facility for an extended period of time or exit a business because of high raw material prices, an oversupply of a particular product and/or a lack of demand for that particular product, which makes production uneconomical. Any decision to permanently close facilities or exit a business would result in impairment and other charges to earnings. Temporary outages sometimes last for several quarters or, in certain cases, longer, and could cause Millennium and its joint ventures to incur costs, including the expenses of maintaining and restarting these facilities. It is possible that factors such

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as increases in raw material costs or lower demand in the future will cause Millennium or its joint ventures to reduce operating rates, idle facilities or exit uncompetitive businesses.

International Operations and Country Risks

Millennium has substantial international operations, which are subject to the risks of doing business abroad, including fluctuations in currency exchange rates, transportation delays and interruptions, political and economic instability and disruptions, restrictions on the transfer of funds, the imposition of duties and tariffs, import and export controls, changes in governmental policies, labor unrest and current and changing regulatory environments. These events could reduce the demand for its products internationally or decrease the prices at which it can sell its products internationally, which could reduce its operating results. In addition, Millennium and Equistar obtain a substantial portion of their principal raw materials from sources outside the U.S., which are subject to these same risks. Although Millennium and Equistar have compliance programs and processes intended to ensure compliance with applicable customs, currency exchange control regulations, transfer pricing regulations or any other laws or regulations to which they may be subject, they are subject to the risk that their compliance could be challenged. These laws may be modified, the result of which may be to prevent or limit foreign subsidiaries from transferring cash to Millennium. For geographic data, see Note 20 of Notes to Consolidated Financial Statements.

In addition, Millennium generates revenue from export sales and operations conducted outside the U.S. that may be denominated in currencies other than the relevant functional currency. Exchange rates between these currencies and U.S. dollars in recent years have fluctuated significantly and may do so in the future. Future events, which may significantly increase or decrease the risk of future movement in foreign currencies in which it conducts its business, cannot be predicted. Millennium also may hedge certain revenues and costs using derivative instruments to minimize the impact of changes in the exchange rates of those currencies compared to the respective functional currencies. It is possible that fluctuations in foreign exchange rates will result in reduced operating results.

Competitive Markets

Millennium and its joint ventures sell their products in highly competitive markets. Due to the commodity nature of certain of their products, competition in these markets is based primarily on price and to a lesser extent on product performance, product quality, product deliverability, reliability of supply and customer service. As a result, Millennium and its joint ventures generally are not able to protect their market position for these products by product differentiation and may not be able to pass on cost increases to their customers. Accordingly, increases in raw material and other costs may not necessarily correlate with changes in prices for these products, either in the direction of the price change or in magnitude. In addition, their ability to increase product sales prices, and the timing of those increases, are affected by the supply-demand balances for their products, as well as the capacity utilization rates for those products. With respect to Millennium’s acetyls business and Equistar’s businesses, timing differences in pricing between rising raw material costs, which may change daily, and contract product prices, which in many cases are negotiated only monthly or less often, sometimes with an additional lag in effective dates for increases, have reduced and may continue to reduce profitability.

Environmental and Other Regulatory Matters

Millennium and its joint ventures cannot predict with certainty the extent of their future liabilities and costs under environmental, health and safety laws and regulations and whether liabilities and costs will be material. In addition, they may face liability for alleged personal injury or property damage due to exposure to chemicals or other hazardous substances at their facilities or chemicals that they otherwise manufacture, handle or own. Although these types of claims have not historically had a material impact on their operations, a substantial increase in the success of these types of claims could result in the expenditure of a significant amount of cash by Millennium or its joint ventures to pay claims, and could reduce their operating results.

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Millennium and its joint ventures (together with the industries in which they operate) are subject to extensive national, state and local environmental laws and regulations concerning, and are required to have permits and licenses regulating, emissions to the air, discharges onto land or waters and the generation, handling, storage, transportation, treatment and disposal of waste materials. Many of these laws and regulations provide for substantial fines and potential criminal sanctions for violations. Some of these laws and regulations are subject to varying and conflicting interpretations. In addition, some of these laws and regulations require Millennium and its joint ventures, to meet specific financial responsibility requirements. Millennium cannot accurately predict future developments, such as increasingly strict environmental laws, and inspection and enforcement policies, as well as higher compliance costs, which might affect the handling, manufacture, use, emission or disposal of products, other materials or hazardous and non-hazardous waste. Some risk of environmental costs and liabilities is inherent in Millennium’s and its joint ventures’ operations and products as it is with other companies engaged in similar businesses, and there is no assurance that material costs and liabilities will not be incurred. In general, however, with respect to the costs and risks described above, Millennium does not expect that it or its joint ventures will be affected differently than the rest of the chemical industry where their facilities are located.

Environmental laws may have a significant effect on the nature and scope of cleanup of contamination at current and former operating facilities, the costs of transportation and storage of raw materials and finished products and the costs of the storage and disposal of wastewater. Also, U.S. “Superfund” statutes may impose joint and several liability for the costs of remedial investigations and actions on the entities that generated waste, arranged for disposal of the wastes, transported to or selected the disposal sites and the past and present owners and operators of such sites. All such responsible parties (or any one of them, including Millennium and its joint ventures) may be required to bear all of such costs regardless of fault, legality of the original disposal or ownership of the disposal site. In addition, similar environmental laws and regulations that have been or may be enacted in countries outside of the U.S. may impose similar liabilities and costs upon Millennium. See “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Environmental and Legal Matters.”

Millennium and its joint ventures have on-site solid-waste management units at several facilities. It is anticipated that corrective measures will be necessary to comply with federal and state requirements with respect to these facilities. Millennium and its joint ventures also have liabilities under the Resource Conservation and Recovery Act and various state and non-U.S. government regulations related to several current and former plant sites. Millennium and its joint ventures also are responsible for a portion of the remediation of certain off-site waste disposal facilities. Millennium and its joint ventures are contributing funds to the cleanup of several waste sites throughout the U.S. under the Comprehensive Environmental Response, Compensation and Liability Act (“CERCLA”) and the Superfund Amendments and Reauthorization Act of 1986. Millennium and its joint ventures also have been named as potentially responsible parties at several other sites. Millennium’s policy is to accrue remediation expenses when it is probable that such efforts will be required and the related expenses can be reasonably estimated. Estimated costs for future environmental compliance and remediation are necessarily imprecise due to such factors as the continuing evolution of environmental laws and regulatory requirements, the availability and application of technology, the identification of presently unknown remediation sites and the allocation of costs among the potentially responsible parties under applicable statutes. Millennium, to the extent appropriate, has accrued amounts (without regard to potential insurance recoveries or other third party reimbursements) believed to be sufficient to cover current estimates of the cost for remedial measures based upon its interpretation of current environmental standards. In the opinion of management, there is no material estimable range of reasonably possible loss in excess of the amount recorded. Based on the establishment of such accruals, and the status of discussions with regulatory agencies, Millennium does not anticipate any material adverse effect upon its financial position or liquidity or competitive position as a result of compliance with the laws and regulations described in this or the preceding paragraphs. See also “Item 3. Legal Proceedings—Environmental Proceedings” and “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Environmental and Legal Matters.”

In some cases, compliance with environmental, health and safety laws and regulations can only be achieved by capital expenditures. In the years ended December 31, 2004, 2003 and 2002, Millennium spent approximately

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$8 million, $9 million and $17 million, respectively, for environmentally related capital expenditures at existing facilities. Millennium currently estimates that environmentally related capital expenditures at its facilities will be approximately $16 million for 2005 and $13 million for 2006. These amounts include estimated expenditures related to emission control standards for nitrogen oxides (“NOx”) and highly reactive, volatile organic compounds (“HRVOCs”), as discussed below.

Kalamazoo River Superfund Site—A Millennium subsidiary has been identified as a Potential Responsible Party (“PRP”) with respect to the Kalamazoo River Superfund Site. The site involves cleanup of river sediments and floodplain soils contaminated with polychlorinated biphenyls (“PCBs”), cleanup of former paper mill operations, and cleanup and closure of landfills associated with the former paper mill operations. Litigation concerning the matter commenced in December 1987 but was subsequently stayed and is being addressed under CERCLA. In 2000, the Kalamazoo River Study Group (the “KRSG”), of which the Millennium subsidiary and other PRPs are members, submitted to the State of Michigan a Draft Remedial Investigation and Draft Feasibility Study, which evaluated a number of remedial options for the river. The estimated costs for these remedial options ranged from $0 to $2.5 billion.

At the end of 2001, the U.S. Environmental Protection Agency (“EPA”) took lead responsibility for the river portion of the site at the request of the State of Michigan. In 2004, the EPA initiated a confidential process to facilitate discussions among the agency, the Millennium subsidiary, other PRPs, the Michigan Departments of Environmental Quality and Natural Resources, and certain federal natural resource trustees about the need for additional investigation activities and different possible approaches for addressing the contamination in and along the Kalamazoo River.

As of December 31, 2004, the probable liability associated with the river cannot be determined with certainty. A liability of $40 million has been recognized, representing Millennium’s interim allocation of 55% of the $73 million estimated cost of bank stabilization, recommended as the preferred remedy in 2000 by the KRSG. Although the KRSG study identified a broad range of remedial options, not all of those options would represent reasonably possible outcomes. Management does not believe that it can identify a single remedy among those options that would represent the highest-cost reasonably possible outcome.

In addition, Millennium has recognized a liability of $38 million primarily related to Millennium’s estimated share of remediation costs for two former paper mill sites and associated landfills, which are also part of the Kalamazoo River Superfund Site. Although no final agreement has been reached as to the ultimate remedy for these locations, Millennium has begun remediation activity related to these sites.

Millennium’s ultimate liability for the Kalamazoo River Superfund Site will depend on many factors that have not yet been determined, including the ultimate remedy selected, the determination of natural resource damages, the number and financial viability of the other PRPs, and the determination of the final allocation among the PRPs. See “Item 3. Legal Proceedings—Environmental Proceedings.”

Ozone Standard—The eight-county Houston/Galveston region has been designated a severe non-attainment area for ozone by the EPA under a “one-hour” ozone standard. Emission reduction controls for NOx, which contribute to ozone formation, must be installed at each of Equistar’s six facilities and Millennium’s two facilities in the Houston/Galveston region prior to a November 2007 compliance deadline for the one-hour ozone standard. In addition, in December 2004, the regulatory agency for the state of Texas, the Texas Commission on Environmental Quality, or “TCEQ,” finalized controls over HRVOCs. Equistar and Millennium are still assessing the impact of the HRVOC rules. In April 2004, the EPA designated the eight-county Houston/Galveston region a moderate non-attainment area under an “eight-hour” ozone standard. As a result, the TCEQ must submit a plan to the EPA in 2007 to demonstrate compliance with the eight-hour ozone standard in 2010. Although the one-hour ozone standard expires in 2005, the controls under that standard will not be relaxed under the EPA’s new eight-hour transition rules. As a result, Equistar and Millennium still will be required to meet the new emission standards for NOx and HRVOCs. The timing and amount of the estimated expenditures are subject

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to these regulatory and other uncertainties, as well as to obtaining the necessary permits and approvals. The ultimate cost of implementing any plan developed to comply with the final ozone standards cannot be estimated at this time. See “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Environmental Matters.”

Other Regulatory Requirements—In addition to the environmental matters described above, Millennium and its joint ventures are subject to other material regulatory requirements, including those relating to the shipment or exportation of their products. Although they have compliance programs and other processes intended to ensure compliance with all such regulations, Millennium and its joint ventures are subject to the risk that their compliance with such regulations could be challenged. Non-compliance with certain of these regulations could result in the incurrence of additional costs, penalties or assessments that could be significant.

Lead Paint—Together with alleged past manufacturers of lead-based paint and lead pigments for use in paint, Millennium has been named as a defendant in various legal proceedings alleging that Millennium and other manufacturers are responsible for personal injury, property damage, and remediation costs allegedly associated with the use of these products. The plaintiffs in these legal proceedings include municipalities, counties, school districts, individuals and the State of Rhode Island, and seek recovery under a variety of theories, including negligence, failure to warn, breach of warranty, conspiracy, market share liability, fraud, misrepresentation and nuisance. The majority of these legal proceedings assert unspecified monetary damages in excess of the statutory minimum and, in certain cases, contain general language requesting equitable relief from defendants such as abatement of lead-based paint in buildings. All these legal proceedings are in various pre-trial, post-trial and post-dismissal settings, some of which are on appeal. One legal proceeding relating to lead pigment or paint was tried in 2002. On October 29, 2002, the judge in that case declared a mistrial after the jury declared itself deadlocked. The sole issue before the jury was whether lead pigment in paint in and on Rhode Island buildings constituted a “public nuisance.” This case is tentatively set to be retried on September 7, 2005. An order is anticipated from the court specifying the additional issues to be considered by the jury in the retrial beyond the public nuisance questions considered by the jury in the first trial. While Millennium believes that it has valid defenses to all the lead-based paint and lead pigment proceedings and is vigorously defending them, litigation is inherently subject to many uncertainties. Additional lead-based paint and lead pigment litigation may be filed against Millennium in the future asserting similar or different legal theories and seeking similar or different types of damages and relief, and any adverse court rulings or determinations of liability, among other factors, could affect this litigation by encouraging an increase in the number of future claims and proceedings. In addition, from time to time, legislation and administrative regulations have been enacted or proposed to impose obligations on present and former manufacturers of lead-based paint and lead pigment respecting asserted health concerns associated with such products or to overturn successful court decisions. Millennium is unable to predict the outcome of lead-based paint and lead pigment litigation, the number or nature of possible future claims and proceedings, and the effect that any legislation and/or administrative regulations may have on Millennium. In addition, Millennium cannot reasonably estimate the scope or amount of the costs and potential liabilities related to such litigation, or any such legislation and regulations. Thus, any liability Millennium incurs with respect to pending or future lead-based paint or lead pigment litigation, or any legislation or regulations could, to the extent not covered by insurance, have a material impact on Millennium’s financial position, results of operations or cash flows. In addition, Millennium has not accrued any liabilities for judgments or settlements resulting from lead-based paint and lead pigment litigation. See “Item 3. Legal Proceedings.”

Operating Hazards

The occurrence of material operating problems at facilities owned by Millennium and its joint ventures, including, but not limited to, the events described below, may materially reduce the productivity and profitability of a particular manufacturing facility, or Millennium as a whole, during and after the period of such operational difficulties. Millennium’s operating results are dependent on the continued operation of its and its joint ventures’ various production facilities and the ability to complete construction projects on schedule.

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Although Millennium and its joint ventures take precautions to enhance the safety of their operations and minimize the risk of disruptions, their operations, along with the operations of other members of the chemical industry, are subject to hazards inherent in chemical manufacturing and the related storage and transportation of raw materials, products and wastes. These hazards include: pipeline leaks and ruptures; explosions; fires; severe weather and natural disasters; mechanical failure; unscheduled downtimes; supplier disruptions; labor difficulties; transportation interruptions; remediation complications; chemical spills; discharges or releases of toxic or hazardous substances or gases; storage tank leaks; other environmental risks; and potential terrorist acts. Some of these hazards can cause personal injury and loss of life, severe damage to or destruction of property and equipment and environmental damage, and may result in suspension of operations and the imposition of civil or criminal penalties.

Furthermore, Millennium and its joint ventures will also continue to be subject to present and future claims with respect to workplace exposure, workers’ compensation and other matters. Millennium and its joint ventures maintain property, business interruption and casualty insurance that they believe is in accordance with customary industry practices, but they are not fully insured against all potential hazards incident to their businesses, including losses resulting from war risks or terrorist acts. As a result of market conditions, premiums and deductibles for certain insurance policies can increase substantially and, in some instances, certain insurance may become unavailable or available only for reduced amounts of coverage. If Millennium or its joint ventures were to incur a significant liability for which they were not fully insured, that company might not be able to finance the amount of the uninsured liability on terms acceptable to it or at all, and might be obligated to divert a significant portion of its cash flow from normal business operations.

Conflicts of Interest

Lyondell owns 70.5% of Equistar, and Millennium owns the remaining 29.5% of Equistar. On November 30, 2004, Lyondell acquired Millennium in a stock-for-stock business combination. As a result, Millennium and Equistar are now wholly owned subsidiaries of Lyondell. All executive officers of Millennium and Equistar and all members of Equistar’s Partnership Governance Committee and Millennium’s Board of Directors also serve as officers of Lyondell. Conflicts of interest may arise between Lyondell, Equistar and/or Millennium when decisions arise that could have different implications for Lyondell, Equistar and/or Millennium. Their respective debt agreements generally require related party transactions to be on an arm’s-length basis; however, because Lyondell owns both Millennium and Equistar, conflicts of interest could be resolved in a manner that may be perceived to be adverse to Millennium and/or Equistar.

Related Party Transactions

Lyondell and Equistar and parties related to them have various agreements and transactions with Millennium. For example, Millennium is party to shared services, loaned employee and operating arrangements with Lyondell and Equistar pursuant to which Lyondell, Equistar and Millennium provide many administrative and operating services to each other. For example, Lyondell provides to Millennium and Equistar services that are essential to the administration and management of Millennium’s and Equistar’s businesses, which from time to time may include information technology, human resources, sales and marketing, raw material supply, supply chain, health, safety and environmental, engineering, research and development, facility services, legal, accounting, treasury, internal audit and tax services. Accordingly, Millennium and Equistar depend to a significant degree on Lyondell for the administration of their businesses. If Lyondell did not fulfill its obligations under the shared services arrangement, it would disrupt Millennium’s and Equistar’s businesses and could have a material adverse effect on their businesses and results of operations. In addition, Equistar has product supply agreements with Lyondell and Millennium and various other related parties pursuant to which Equistar sells a substantial amount of its products. Equistar expects to continue to derive a significant portion of its business from transactions with these parties. If they are unable or otherwise cease to purchase Equistar’s products, Equistar’s revenues and margins and, therefore, Millennium’s cash flow could be adversely affected.

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Limitations on Transfers of Cash between Lyondell, Millennium and Equistar

Although Equistar and Millennium are wholly owned subsidiaries of Lyondell, debt covenants limit the ability to transfer cash among Lyondell, Equistar and Millennium. For example, Lyondell’s indentures contain a covenant that currently prohibits it from making cash investments in subsidiaries and joint ventures which are not restricted subsidiaries as defined in the indentures, subject to only limited exceptions. Neither Millennium nor Equistar currently is a restricted subsidiary. Millennium’s flexibility to make investments in Equistar also is limited by its debt covenants.

Some of Equistar’s indentures require additional interest payments to the noteholders if Equistar makes distributions to Lyondell and Millennium when Equistar does not meet a specified fixed charge coverage ratio. Equistar met this ratio as of December 31, 2004. In addition, Equistar’s credit facility prohibits distributions during any default under the facility. These provisions may deter or limit the movement of cash from Equistar to Lyondell and Millennium.

Future borrowings by Lyondell or Equistar also may contain restrictions on the payment of distributions by Equistar to Lyondell and Millennium or the cash investment by Lyondell in Equistar and Millennium. Applicable state law may also limit the amounts Equistar is permitted to pay as distributions to Lyondell and Millennium. The ability of Equistar to distribute cash to Lyondell and Millennium, and the ability of Lyondell to make cash investments in Millennium, also is dependent upon their economic performance, which is dependent on a variety of factors, including factors described elsewhere in this “Risks and Other Factors that May Affect Millennium, Its Subsidiaries and Its Joint Ventures” section.

Potential Acquisitions, Divestitures and Joint Ventures

Millennium may purchase or sell assets or enter into contractual arrangements or joint ventures in an effort to generate value. To the extent permitted by applicable debt covenants, some of these transactions may be financed with additional borrowings by Millennium or its joint ventures. Although these transactions are expected to yield longer-term benefits if the expected efficiencies and synergies of the transactions are realized, they could reduce the operating results of Millennium or its joint ventures in the short term because of the costs associated with such transactions. Other transactions may advance future cash flows from some of Millennium’s or its joint ventures’ businesses, thereby yielding increased short-term liquidity, but consequently resulting in lower cash flows from these operations over the longer term.

FORWARD-LOOKING STATEMENTS

Certain of the statements contained in this report are “forward-looking statements” within the meaning of the federal securities laws. Forward-looking statements can be identified by words such as “estimate,” “believe,” “expect,” “anticipate,” “plan,” “budget” or other words that convey the uncertainty of future events or outcomes. Many of these forward-looking statements have been based on expectations and assumptions about future events that may prove to be inaccurate. While management considers these expectations and assumptions to be reasonable, they are inherently subject to significant business, economic, competitive, regulatory and other risks, contingencies and uncertainties, most of which are difficult to predict and many of which are beyond Millennium’s control. Millennium’s actual results could differ materially from those anticipated in these forward-looking statements as a result of certain factors, including but not limited to:

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Any of these factors, or a combination of these factors, could materially affect Millennium’s, its subsidiaries’ or its joint ventures’ future results of operations and the ultimate accuracy of the forward-looking statements. These forward-looking statements are not guarantees of Millennium’s, its subsidiaries’ or its joint ventures’ future performance, and Millennium’s, its subsidiaries’ or its joint ventures’ actual results and future developments may differ materially from those projected in the forward-looking statements. Management cautions against putting undue reliance on forward-looking statements or projecting any future results based on such statements or present or prior earnings levels.

All forward-looking statements in this Form 10-K are qualified in their entirety by the cautionary statements contained in this section and elsewhere in this report. See “Items 1 and 2. Business and Properties,” “Risks and Other Factors That May Affect Millennium, Its Subsidiaries and Its Joint Ventures,” “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Item 7A. Disclosure of Market and Regulatory Risk” for additional information about factors that may affect the businesses and operating results of Millennium, its subsidiaries and its joint ventures. These factors are not necessarily all of the important factors that could affect Millennium, its subsidiaries and its joint ventures. Use caution and common sense when considering these forward-looking statements. Millennium does not intend to update these statements unless securities laws require it to do so.

In addition, this report contains summaries of contracts and other documents. These summaries may not contain all of the information that is important to an investor, and reference is made to the actual contract or document for a more complete understanding of the contract or document involved.

INDUSTRY AND OTHER INFORMATION

The data included or incorporated by reference in this report regarding the chemical industry, product capacity and ranking, including Millennium’s and Equistar’s respective capacity positions and the capacity positions of their competitors for certain products, is based on independent industry publications, reports from government agencies or other published industry sources and estimates of Millennium and/or Equistar. These estimates are based on information obtained from Millennium’s and/or Equistar’s customers, distributors, suppliers, trade and business organizations and other contacts in the markets in which Millennium and Equistar operate and managements’ knowledge and experience. These estimates involve risks and uncertainties and are subject to change based on various factors, including those discussed under the heading “Risks and Other Factors That May Affect Millennium, Its Subsidiaries and Its Joint Ventures” and “Forward-Looking Statements.”

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NON-GAAP FINANCIAL MEASURES

The body of generally accepted accounting principles is commonly referred to as “GAAP.” For this purpose, a non-GAAP financial measure is generally defined by the Securities and Exchange Commission as one that purports to measure historical or future financial performance, financial position or cash flows but excludes or includes amounts that would not be so adjusted in the most comparable U.S. GAAP measure. From time to time Millennium discloses so-called non-GAAP financial measures, primarily EBITDA, or earnings before interest, taxes and depreciation and amortization of long-lived assets. The non-GAAP financial measures described herein or in other documents issued by Millennium are not a substitute for the GAAP measures of earnings, for which management has responsibility.

Millennium sometimes uses EBITDA in its communications with investors, financial analysts and the public. This is because EBITDA is perceived as a useful and comparable measure of operating performance and liquidity. For example, interest expense is dependent on the capital structure and credit rating of a company. However, debt levels, credit ratings and, therefore, the impact of interest expense on earnings vary in significance between companies. Similarly, the tax positions of individual companies can vary because of their differing abilities to take advantage of tax benefits, with the result that their effective tax rates and tax expense can vary considerably. Finally, companies differ in the age and method of acquisition of productive assets, and thus the relative costs of those assets, as well as in the depreciation (straight-line, accelerated, units of production) method, which can result in considerable variability in depreciation and amortization expense between companies. Thus, for comparison purposes, management believes that EBITDA can be useful as an objective and comparable measure of operating profitability and the contribution of operations to liquidity because it excludes these elements of earnings that do not provide information about the current operations of existing assets. Accordingly, management believes that disclosure of EBITDA can provide useful information to investors, financial analysts and the public in their evaluation of companies’ operating performance and the contribution of operations to liquidity.

Millennium also periodically reports adjusted net income (loss) or adjusted EBITDA, excluding specified items that are unusual in nature or are not comparable from period to period and that are included in GAAP measures of earnings. Management believes that excluding these items generally helps investors compare operating performance between two periods. Such adjusted data is always reported with an explanation of the items that are excluded.

Item 3. Legal Proceedings

Litigation Matters

Millennium, its subsidiaries and its joint ventures are, from time to time, defendants in lawsuits, some of which are not covered by insurance. Many of these suits make no specific claim for relief. Although final determination of legal liability and the resulting financial impact with respect to any such litigation cannot be ascertained with any degree of certainty, Millennium does not believe that any ultimate uninsured liability resulting from the legal proceedings in which it, its subsidiaries or its joint ventures currently are involved (directly or indirectly) will individually, or in the aggregate, have a material adverse effect on the business or financial condition of Millennium. However, the adverse resolution in any reporting period of one or more of these suits could have a material impact on Millennium’s results of operations for that period, which may be mitigated by contribution or indemnification obligations of co-defendants or others, or by any insurance coverage that may be available.

Although Millennium, its subsidiaries and its joint ventures are involved in numerous and varied legal proceedings, a significant portion of their outstanding litigation arose in five contexts: (1) claims for personal injury or death allegedly arising out of exposure to the products produced by or located on the premises of the respective entities; (2) claims for personal injury or death, and/or property damage allegedly arising out of the generation and disposal of chemical wastes at Superfund and other waste disposal sites; (3) claims for personal

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injury, property damage and/or air, noise and water pollution allegedly arising out of operations; (4) employment and benefits related claims; and (5) commercial disputes.

Millennium has received requests from the staff of the Northeast Regional Office of the Securities and Exchange Commission for the voluntary production of documents in connection with an informal inquiry into the previously disclosed restatement of Millennium’s financial statements for the years 1998 through 2002 and for the first quarter of 2003. Millennium is complying with all such requests received.

Together with alleged past manufacturers of lead-based paint and lead pigments for use in paint, Millennium has been named as a defendant in various legal proceedings alleging that Millennium and other manufacturers are responsible for personal injury, property damage, and remediation costs allegedly associated with the use of these products. The plaintiffs in these legal proceedings include municipalities, counties, school districts, individuals and the State of Rhode Island, and seek recovery under a variety of theories, including negligence, failure to warn, breach of warranty, conspiracy, market share liability, fraud, misrepresentation and nuisance. The majority of these legal proceedings assert unspecified monetary damages in excess of the statutory minimum and, in certain cases, contain general language requesting equitable relief from defendants such as abatement of lead-based paint in buildings. Legal proceedings relating to lead pigment or paint are in various procedural stages of pre-trial, post-trial and post-dismissal settings. These legal proceedings are described below in groups pursuant to their particular procedural posture.

Pending legal proceedings relating to lead pigment or paint in various pre-trial stages are as follows: The City of New York et al. v. Lead Industries Association, Inc., et al., commenced in the Supreme Court of the State of New York on June 8, 1989; Jackson, et al. v. The Glidden Co., et al., commenced in the Court of Common Pleas, Cuyahoga County, Ohio, on August 12, 1992; City of St. Louis v. Lead Industries Association, Inc., et al., commenced in the St. Louis, Missouri, Circuit Court on January 25, 2000; Mark Ludwigsen Walters v. NL Industries, Inc., et al., commenced on July 18, 2002, in the Supreme Court, County of Kings, New York; William Russell, et al. v. NL Industries, et al., commenced in the Circuit Court of LeFlore County, Mississippi on December 30, 2002; Will T. Turner v. Sherwin-Williams Company, et al., commenced in the Circuit Court of Jefferson County, Mississippi on December 30, 2002; John Henry Sweeney v. The Sherwin Williams Co., et al., commenced in the Circuit Court of Hinds County, Mississippi on December 30, 2002; and Herman Frederick Jackson, Billye Raye Ishee, Gaiey Ducksworth, Jr. and Roy Lee Merrick v. Phillips Building Supply of Laurel, et al., commenced in the Circuit Court of Jones County, Mississippi on January 14, 2002.

Kayla Sabater et al., individually and on behalf of all those similarly situated in the State of New York v. Lead Industries Association, Inc., et al., commenced in the Supreme Court of New York, Bronx County, on November 25, 1998, and was dismissed without prejudice in June 2004. On October 29, 2002, after a trial in which the jury deadlocked, the court in the State of Rhode Island v. Lead Industries Association, Inc., et al. (which commenced in the Superior Court of Providence, Rhode Island, on October 13, 1999) declared a mistrial. The sole issue before the jury was whether lead pigment in paint in and on public and private Rhode Island buildings constituted a “public nuisance.” This case is tentatively set to be retried on September 7, 2005. An order is anticipated from the court specifying the additional issues to be considered by the jury in the retrial beyond the public nuisance questions considered by the jury in the first trial.

Legal proceedings relating to lead pigment or paint dismissed after motions to dismiss or for summary judgment were granted by the court in favor of the defendants, but pending appeal are as follows: Steven Thomas, et al. v. Lead Industries Association, Inc., et al., commenced in the Milwaukee County, Wisconsin, Circuit Court on September 10, 1999; Reginald Smith, et al. v. Lead Industries Association, Inc., et al. commenced in the Baltimore City, Maryland, Circuit Court on September 29, 1999; and In Re Lead Paint Litigation, consolidated on February 11, 2002, in the Superior Court of New Jersey, Law Division: Middlesex County, Case Code 702. In addition, on February 7, 2005, the Circuit Court, Cook County, Illinois granted the defendants’ motion for summary judgment in Mary Lewis, Tashswan Banks and Jacqueline Nye v. Lead Industries Association, Inc., et al., which case was filed on March 14, 2002. On March 11, 2005, the plaintiffs filed a motion for reconsideration of the order granting summary judgment to the defendants and, on March 15, 2005, the plaintiffs served a motion

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for leave to file a third amended complaint. There are two cases in which the court entered summary judgment on behalf of all defendants, and notices of appeal have been filed: The County of Santa Clara, a political subdivision of the State of California, individually and on behalf of all those similarly situated v. Atlantic Richfield et al., commenced in the Santa Clara County, California, Superior Court on March 23, 2000; and City of Chicago v. American Cyanamid Company, et al., commenced on September 5, 2002, in the Circuit Court, Cook County, Illinois.

Legal proceedings relating to lead pigment or paint that are pending but have been abated under the laws of the State of Texas pending resolution of the appeal of a decision granting summary judgment in favor of one lead pigment defendant in Spring Branch Independent School District v. Lead Industries Association, and for which no defense costs will be incurred during the abatement period, are as follows: Houston Independent School District v. Lead Industries Association, et al., commenced in the District Court of Harris County, Texas, on June 30, 2000; Harris County v. Lead Industries Association, et al., commenced in the District Court of Harris County, Texas, on April 23, 2001; Liberty Independent School District v. Lead Industries Association, et al., commenced in the District Court of Liberty County, Texas, on January 22, 2002; and Brownsville Independent School District v. Lead Industries Association, Inc., et al., filed on May 28, 2002, in the District Court, Cameron County, Texas.

Legal proceedings relating to lead pigment or paint that have been filed with a court, are pending, but have yet to be formally served on Millennium, any of its subsidiaries, or alleged predecessor companies, are as follows: Hall, et al. v. Lead Industries Association, et al., commenced in the Baltimore City, Maryland, Circuit Court on June 19, 2000; Hart, et al. v. Lead Industries Association, et al., commenced in the Baltimore City, Maryland, Circuit Court on June 26, 2000; Johnson, et al. v. Clinton, et al., commenced in the Baltimore City, Maryland, Circuit Court on October 10, 2000; Randle, et al. v. Lead Industries Association, et al., commenced in the Baltimore City, Maryland, Circuit Court on August 10, 2000; Williams, et al. v. Lead Industries Association, et al., commenced in the Baltimore City, Maryland, Circuit Court on July 7, 2000; Myreona Stewart, et al. v. NL Industries, et al., commenced in the Circuit Court of LeFlore County, Mississippi on December 31, 2002; and Moran v. Atlantic Richfield Co., et al., commenced in the San Francisco County, California, Superior Court on December 9, 2004.

Millennium’s defense costs to date for lead-based paint and lead pigment litigation largely have been covered by insurance. Millennium has not accrued any liabilities for any lead-based paint and lead pigment litigation. Millennium has insurance policies that potentially provide approximately $1 billion in indemnity coverage for lead-based paint and lead pigment litigation. Millennium’s ability to collect under the indemnity coverage would depend upon the timing of any request for indemnity and the solvency of the various insurance carriers that are part of the coverage block at the time of such a request. As a result of insurance coverage litigation initiated by Millennium, an Ohio trial court issued a decision in 2002 effectively requiring certain insurance carriers to resume paying defense costs in the lead-based paint and lead pigment cases. Indemnity coverage was not at issue in the Ohio court’s decision. The insurance carriers may appeal the Ohio decision regarding defense costs, and they have in the past and may in the future attempt to deny indemnity coverage if there is ever a settlement or an adverse judgment in any lead-based paint or lead pigment case.

In 1986, a predecessor of a company that is now a subsidiary of Millennium sold its recently acquired Glidden Paints business. As part of that sale, the seller agreed to indemnify the purchaser against certain claims made during the first eight years after the sale; the purchaser agreed to indemnify the seller against such claims made after the eight-year period. With the exception of the two cases discussed below, all pending lead-based paint and lead pigment litigation involving Millennium and its subsidiaries, including the Rhode Island case, was filed after the eight-year period. Accordingly, Millennium believes that it is entitled to full indemnification from the purchaser against lead-based paint and lead pigment cases filed after the eight-year period. The purchaser disputes that it has such an indemnification obligation, and claims that the seller must indemnify it. Since Millennium’s defense costs to date largely have been covered by insurance and there never has been a settlement paid by, nor any judgment rendered against, Millennium (or any other company sued in any lead-based paint or lead pigment litigation), the parties’ indemnification claims have not been ruled on by a court.

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A current subsidiary and an alleged predecessor company are parties to the only two remaining cases originally filed within the eight-year period following the 1986 sale of the Glidden Paints business referred to above. In the first of these cases, The City of New York et al. v. Lead Industries Association, Inc., et al., commenced in the Supreme Court of the State of New York on June 8, 1989, the New York City Housing Authority brought an action relating to tens of thousands of public housing units. All claims in that case have been dropped except for those relating to two housing projects. The other remaining case, Jackson, et al. v. The Glidden Co., et al., commenced in the Court of Common Pleas, Cuyahoga County, Ohio, on August 12, 1992, includes two minors as plaintiffs. Dispositive motions were filed in that case in late 2002 and have yet to be ruled on by the court.

Millennium believes that it has valid defenses to all pending lead-based paint and lead pigment proceedings and is vigorously defending them. However, litigation is inherently subject to many uncertainties. Additional lead-based paint and lead pigment litigation may be filed against Millennium or its subsidiaries in the future asserting similar or different legal theories and seeking similar or different types of damages and relief, and any adverse court rulings or determinations of liability, among other factors, could affect the litigation by encouraging an increase in the number of future claims and proceedings. In addition, from time to time, legislation and administrative regulations have been enacted or proposed to impose obligations on present and former manufacturers of lead-based paint and lead pigment respecting asserted health concerns associated with such products or to overturn successful court decisions. Millennium is unable to predict the outcome of lead-based paint and lead pigment litigation, the number or nature of possible future claims and proceedings, or the effect that any legislation and/or administrative regulations may have on Millennium or its subsidiaries. In addition, management cannot reasonably estimate the scope or amount of the costs and potential liabilities related to such litigation, or any such legislation and regulations. Accordingly, Millennium has not accrued any amounts for such litigation.

On January 16, 2002, Slidell Inc. (“Slidell”) filed a lawsuit against Millennium Inorganic Chemicals Inc., a wholly-owned operating subsidiary of Millennium, in the United States District Court, District of Minnesota, alleging breach of contract and other related causes of action arising out of a contract between the two parties for the supply of packaging equipment. In the suit, Slidell sought unspecified monetary damages in excess of the statutory minimum. Millennium filed a counterclaim against Slidell for recovery of the money it had already paid for the equipment plus other direct damages arising out of Slidell’s breach of its contractual obligations. The trial for this case began on January 11, 2005. On February 24, 2005, the jury returned a verdict in the amount of $4.8 million in Millennium’s favor for Millennium’s claim that Slidell breached its contractual obligations. Although the jury did not award Slidell any damages for its claim that Millennium breached its contractual obligations, the jury awarded Slidell $650,000 in damages for a related promissory estoppel claim by Slidell. The net result of the case is a jury verdict in Millennium’s favor in the amount of $4.2 million.

Environmental Proceedings

From time to time Millennium, its subsidiaries and its joint ventures receive notices from federal, state or local governmental entities of alleged violations of environmental laws and regulations pertaining to, among other things, the disposal, emission and storage of chemical and petroleum substances, including hazardous wastes. Such alleged violations may become the subject of enforcement actions or other legal proceedings and may (individually or in the aggregate) involve monetary sanctions of $100,000 or more (exclusive of interest and costs). For additional information regarding environmental matters, see “Items 1. and 2. Business and Properties—Risks and Other Factors that May Affect Millennium, Its Subsidiaries and Its Joint Ventures—Environmental and Other Regulatory Matters” and “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Environmental and Legal Matters.”

As of December 31, 2004, Millennium’s environmental liability for future remediation costs at all current and former plant sites and Superfund sites totaled $122 million. The liabilities for individual sites range from $1 million to $78 million and are expected to be incurred over a number of years, and not be concentrated in any

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single year. In the opinion of management, there is no material estimable range of reasonably possible loss in excess of the liabilities recorded for environmental remediation. However, it is possible that new information about the sites for which the accrual has been established, new technology or future developments such as involvement in investigations by regulatory agencies, could require Millennium to reassess its potential exposure related to environmental matters. See “Items 1. and 2. Business and Properties—Risks and Other Factors that May Affect Millennium, Its Subsidiaries and Its Joint Ventures—Environmental and Other Regulatory Matters” and “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Environmental and Legal Matters.”

A Millennium subsidiary has been identified as a PRP with respect to the Kalamazoo River Superfund Site. The site involves cleanup of river sediments and floodplain soils contaminated with PCBs, cleanup of former paper mill operations, and cleanup and closure of landfills associated with the former paper mill operations. Litigation concerning the matter commenced in December 1987 but was subsequently stayed and is being addressed under CERCLA. In 2000, the KRSG, of which the Millennium subsidiary and other PRPs are members, submitted to the State of Michigan a Draft Remedial Investigation and Draft Feasibility Study, which evaluated a number of remedial options for the river. The estimated costs for these remedial options ranged from $0 to $2.5 billion.

As of December 31, 2004, the probable liability associated with the river cannot be determined with certainty. A liability of $40 million has been recognized, representing Millennium’s interim allocation of 55% of the $73 million estimated cost of bank stabilization, recommended as the preferred remedy in 2000 by the KRSG. Although the KRSG study identified a broad range of remedial options, not all of those options would represent reasonably possible outcomes. Management does not believe that it can identify a single remedy among those options that would represent the highest-cost reasonably possible outcome.

In addition, Millennium has recognized a liability of $38 million primarily related to Millennium’s estimated share of remediation costs for two former paper mill sites and associated landfills, which are also part of the Kalamazoo River Superfund Site. Although no final agreement has been reached as to the ultimate remedy for these locations, Millennium has begun remediation activity related to these sites.

Millennium’s ultimate liability for the Kalamazoo River Superfund Site will depend on many factors that have not yet been determined, including the ultimate remedy selected, the determination of natural resource damages, the number and financial viability of the other PRPs, and the determination of the final allocation among the PRPs. For additional information regarding the Kalamazoo River Superfund Site, see “Risks and Other Factors That May Affect Millennium, Its Subsidiaries and Its Joint Ventures—Environmental and Other Regulatory Matters.”

In April 1997, the Illinois Attorney General filed a complaint in Circuit Court in Grundy, Illinois seeking monetary sanctions for releases into the environment at Millennium’s former Morris, Illinois facility in alleged violation of state regulations. The Morris, Illinois plant was contributed to Equistar on December 1, 1997 in connection with the formation of Equistar. Equistar has reached a settlement with the State of Illinois, which includes a civil penalty in the amount of $175,000. Millennium is responsible for paying this amount pursuant to the agreement under which Equistar was formed on December 1, 1997.

In May 2003, the TCEQ notified Millennium’s Equistar joint venture that it is seeking a civil penalty of $167,000 in connection with alleged exceedances of permitted emissions at certain cooling towers at Equistar’s Channelview plant. Equistar does not believe that the ultimate resolution of this matter will have a material adverse effect on the business or financial condition of Equistar.

Indemnification

Millennium, its subsidiaries and its joint ventures are parties to various indemnification arrangements, including arrangements entered into in connection with acquisitions, divestitures and the formation of joint

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ventures. For example, Millennium entered into indemnification arrangements in connection with its demerger from Hanson plc, and Equistar and its owner companies (including Millennium) entered into indemnification arrangements in connection with the formation of Equistar. Pursuant to these arrangements, Millennium, its subsidiaries and its joint ventures provide indemnification to and/or receive indemnification from other parties in connection with liabilities that may arise in connection with the transactions and in connection with activities prior to completion of the transactions. These indemnification arrangements typically include provisions pertaining to third party claims relating to environmental and tax matters and various types of litigation. As of December 31, 2004, Millennium has not accrued any significant amounts for such indemnification obligations, other than amounts under tax sharing agreements that have been reflected in the provision for income taxes, and is not aware of other circumstances that would be likely to lead to significant future indemnification claims against Millennium. Millennium cannot determine with certainty the potential amount of future payments under the indemnification arrangements until events arise that would trigger a liability under the arrangements.

Item 4. Submission of Matters to a Vote of Security Holders

Omitted pursuant to General Instruction I of Form 10-K.

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PART II

Item 5. Market for the Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

At the effective time of Lyondell’s acquisition of Millennium, each issued and outstanding share of common stock, par value $0.01 per share, of Millennium was converted into the right to receive 0.95 shares of common stock, par value $1.00 per share, of Lyondell. As a result of the acquisition, Millennium is now a wholly owned subsidiary of Lyondell, does not have a class of equity securities registered pursuant to Section 12 of the Securities Exchange Act of 1934 and does not have a class of equity securities listed on any stock exchange or traded in any public market.

Millennium suspended payment of dividends on its common stock in July 2003, and, therefore, Millennium paid no dividends on its common stock during the remainder of 2003 or in 2004. Millennium paid a dividend of $0.135 per share of common stock in each of the first two quarters of 2003. During 2003, Millennium paid $17 million in cash dividends on its common stock.

Millennium’s credit agreement and the indenture under which the 9.25% senior notes due June 15, 2008 were issued contain certain restrictions on Millennium’s ability to pay dividends on its common stock. For a description of those restrictions, please see “Risks and Other Factors That May Affect Millennium, Its Subsidiaries and Its Joint Ventures—Limitations on Transfers of Cash between Lyondell, Millennium and Equistar,” “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition—Liquidity and Capital Resources” and Note 11 of Notes to the Consolidated Financial Statements. Millennium currently is prohibited from paying any dividends under provisions of the 9.25% senior notes.

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Item 6. Selected Financial Data

The following selected financial data should be read in conjunction with the Consolidated Financial Statements and the notes thereto and “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

This discussion should be read in conjunction with the information contained in the Consolidated Financial Statements of Millennium Chemicals Inc. (“Millennium”) and the notes thereto.

In addition to comparisons of annual operating results, Millennium has included, as additional disclosure, certain “trailing quarter” comparisons of fourth quarter 2004 operating results to third quarter 2004 operating results. Millennium’s acetyls business and its joint ventures’ businesses are highly cyclical, in addition to experiencing some seasonal effects. Trailing quarter comparisons may offer important insight into the current business direction of Millennium and its joint ventures.

References to industry benchmark prices or costs, including the weighted average cost of ethylene production, are generally to industry prices and costs reported by Chemical Marketing Associates, Incorporated (“CMAI”), except that crude oil and natural gas benchmark price references are to industry prices reported by Platts, a reporting service of The McGraw-Hill Companies.

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OVERVIEW

Millennium is a global manufacturer and marketer of titanium dioxide (“TiO₂”) and acetyls. Millennium’s principal operations are grouped into two business segments: inorganic chemicals, which primarily consists of TiO₂; and ethylene, co-products and derivatives (“EC&D”). The EC&D segment includes Millennium’s acetyls business and Millennium’s 29.5% interest in Equistar Chemicals, LP (“Equistar”), which is accounted for under the equity method. Millennium was acquired by Lyondell Chemical Company (“Lyondell”) on November 30, 2004.

During 2004, the TiO₂ industry experienced strong demand and reduced capacity that tightened the TiO₂ market. Demand increased an estimated 6% to 8% compared to 2003, resulting in worldwide industry operating rates of approximately 91%. Millennium’s TiO₂ products benefited from higher 2004 sales prices; however, these were more than offset by higher costs and selling, general and administrative (“SG&A”) expenses. The acetyls business and Equistar benefited from a cyclical turnaround in the chemical industry as a stronger global economy led to increased demand and tighter chemical industry supply/demand balances compared to 2003. In this improved business environment, acetyls generally benefited from higher product margins in 2004 compared to 2003. Millennium’s equity investment in Equistar resulted in 2004 income compared to a 2003 loss as Equistar’s product margins improved.

Millennium’s average 2003 selling prices for TiO₂ were higher than in 2002, and its acetyls 2003 average selling prices were significantly higher than 2002 average selling prices. While acetyls margins improved in 2003, the higher 2003 TiO₂ sales prices were insufficient to offset higher 2003 manufacturing costs, resulting in lower margins and income for the TiO₂ business segment. In addition, at Equistar, operating losses in 2003 were greater than in 2002. Equistar’s results in 2003 reflected lower sales volumes and significantly higher raw material and energy costs than in 2002, which were only partially offset by higher average 2003 selling prices.

RESULTS OF OPERATIONS

Revenues—Revenues of $1,888 million for 2004 increased 12% compared to 2003 primarily due to higher TiO₂ sales volumes coupled with higher local currency sales prices and the favorable effect of translating sales denominated in stronger local currencies into U.S. dollars. Higher average 2004 acetyls sales prices were partly offset by lower sales volumes.

Revenues of $1,687 million for 2003 increased 9% compared to 2002 primarily due to higher TiO₂ and acetyls local currency sales prices and foreign currency strength against the U.S. dollar. Acetyls sales volumes for 2003 were higher than in the prior year, but 2003 sales volumes for TiO₂ were lower than in 2002.

Cost of Sales—Costs of sales increased 9% in 2004 compared to 2003 and 12% in 2003 compared to 2002, primarily due to the unfavorable effect of translating local currency manufacturing costs into a weakening U.S. dollar during this three-year period. In addition, rising utility and raw material costs, particularly natural gas and ethylene, during this three-year period contributed to the increasing manufacturing costs. The increases in 2003 compared to 2002 were much more significant than the increases in 2004 compared to 2003.

SG&A Expenses—Selling, general and administrative (“SG&A”) expenses were $164 million, $130 million and $154 million in 2004, 2003 and 2002, respectively. The 26% increase in SG&A expenses in 2004 compared to 2003 reflected a $31 million higher accrual in 2004 for estimated environmental remediation costs and higher costs for outside consultants and employee benefits. The decrease in SG&A expenses in 2003 of $24 million, or 16%, compared to 2002 was primarily due to a $13 million higher accrual in 2002 for estimated environmental remediation costs and, to a lesser extent, Millennium’s cost reduction initiatives.

Business Combination Costs—In connection with Lyondell’s November 30, 2004 acquisition of Millennium, Millennium incurred $71 million of business combination costs, primarily consisting of change-of-control liabilities to officers and key employees and the vesting of certain of their benefits.

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Asset Impairments—Millennium recorded pretax asset impairment charges of $14 million after tax in 2004, and $103 million, or $101 million after tax, in the fourth quarter of 2003, related to Millennium’s Le Havre, France TiO₂ manufacturing facility. At December 31, 2003, after the impairment charge, the carrying value of the property, plant and equipment at the Le Havre TiO₂ manufacturing facility was zero. Capital expenditures of $14 million at this plant during 2004 were included in operating expense as additional impairment charges. See Note 4 to the Consolidated Financial Statements.

Reorganization and Other Costs—In July 2003, Millennium announced a program to reduce costs, including a reduction of approximately 5% in the number of Millennium employees worldwide. Millennium closed its executive offices in Red Bank, New Jersey, effective September 1, 2003, and relocated its headquarters to Baltimore, Maryland, where Millennium had existing administrative offices. Millennium recorded related charges of $3 million and $18 million in 2004 and 2003, respectively. Cumulative charges for the program of $21 million included $20 million for severance-related costs and $1 million for contractual commitments for ongoing lease costs, net of expected sublease income, associated with the closure of the Red Bank, New Jersey office for the remaining term of the lease agreement. Other costs, net, include a net write-off of $6 million in 2004 for assets that will not have future value as a result of a jury verdict in the first quarter 2005. See Note 5 to the Consolidated Financial Statements.

Interest Expense—Interest expense was $106 million in 2004, $98 million in 2003 and $90 million in 2002. Interest costs were higher in 2004 compared to 2003 and in 2003 compared to 2002, respectively, as a result of higher average debt levels and the higher interest rates. Millennium issued, in April 2003, an additional $100 million principal amount of 9.25% senior notes and, in November 2003, $150 million of 4% Convertible Senior Debentures. Additionally, in November 2003, Millennium terminated its European receivables securitization program.

Other Income, net—Other income, net, was $14 million in 2004 and $58 million in 2003. Other income, net, in 2004 and 2003, included $6 million and $55 million, respectively, related to the reversal of interest expense accruals as a result of the favorable settlement of tax issues.

Income from Equity Investment in Equistar—Millennium’s equity investment in Equistar resulted in income of $81 million in 2004 and losses of $100 million and $73 million in 2003 and 2002, respectively. The $181 million improvement in 2004 compared to 2003 was primarily due to higher product margins at Equistar as a result of a cyclical turnaround in the chemical industry in 2004.

Millennium’s equity losses from Equistar in 2003 included Millennium’s 29.5% share of Equistar’s financing costs of $11 million, a loss on the sale of a polypropylene production facility of $4 million, and severance costs of $2 million. The remaining increase in equity losses in 2003 compared to 2002 was primarily due to lower sales volumes, higher pension and medical benefit costs, and a higher provision for doubtful accounts, partially offset by higher average product margins at Equistar.

Income Taxes—The tax provision was $33 million in 2004 and a benefit of $11 million and $59 million in 2003 and 2002, respectively. The $33 million provision in 2004 exceeds the U.S. statutory rate reflecting an increase of $28 million in estimates of taxes for prior years, and a $20 million increase in the valuation reserve for tax assets of French subsidiaries. The $11 million tax benefit from a pretax loss in 2003 was less than the statutory rate due to a $56 million increase in the valuation allowance provided for net deferred tax assets of French subsidiaries and a $19 million deferred tax provision for the planned repatriation of approximately $100 million of earnings of Australian and European subsidiaries. The tax benefit of $59 million in 2002 was significantly higher than the statutory rate primarily due to favorable settlements of prior year tax items, including a tax refund. In each of the three years, Millennium benefited from non-U.S. tax incentives that reduced taxes.

Loss Before Cumulative Effect of Accounting Change—Millennium reported a net loss of $31 million in 2004, a $185 million loss before the cumulative effect of an accounting change for asset retirement obligations in 2003 and a loss of $39 million before the cumulative effect of an accounting change for goodwill in 2002. The

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$154 million improvement in 2004 compared to 2003 was the result of pretax improvements of $64 million in Millennium’s operating income and $181 million from Millennium’s equity investment in Equistar, partly offset by $44 million of lower other income, net. The combined pretax improvement of $201 million would have resulted in an after-tax improvement of approximately $131 million at statutory tax rates; however, income tax effects resulted in an additional improvement of approximately $30 million. The 2004 tax provision included $48 million that was unrelated to 2004 pretax earnings, while the 2003 provision included $75 million that was unrelated to 2003 pretax earnings. See “Income Taxes” above. The 2004 period also included pretax business combination costs of $71 million, Le Havre asset impairment charges of $14 million, and a net charge of $6 million for write-off of assets. The 2003 period included pretax Le Havre asset impairment charges of $103 million, and reorganization costs of $18 million.

Millennium’s pretax results decreased $99 million in 2003 compared to 2002, primarily due to lower operating results of $124 million, a $27 million larger loss from Millennium’s equity investment in Equistar, and higher net interest expense of $6 million, partly offset by the favorable settlement of tax issues of $55 million. Additional 2003 deferred tax provisions offset the tax benefit of the higher pretax loss.

Fourth Quarter 2004 versus Third Quarter 2004

Millennium had a net loss of $38 million in the fourth quarter 2004 compared to net income of $27 million in the third quarter 2004. The fourth quarter 2004 included pretax business combination costs of $66 million. Operationally, the fourth quarter 2004 TiO₂ sales volumes declined by approximately 30,000 metric tons, or 21%, versus the third quarter 2004, consistent with normal historic seasonal declines. On a U.S. dollar basis, sales prices increased by approximately $100 per metric ton, or 7%, but cost increases of approximately the same magnitude resulted in unchanged margins versus the third quarter 2004.

Segment Analysis

Millennium’s principal operations are grouped into two business segments: inorganic chemicals; and EC&D. The EC&D segment includes Millennium’s acetyls business and Millennium’s 29.5% interest in Equistar, which is accounted for under the equity method. See Note 6 to the Consolidated Financial Statements. Operating income and expense not identified with the two businesses, including certain of Millennium’s SG&A expenses, business combination costs, employee-related costs from predecessor businesses and costs associated with Millennium’s 2003 cost reduction program are grouped under the heading, Other operating loss.

The following table reflects summarized financial information for Millennium.

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Inorganic Chemicals Segment

Overview—The Inorganic Chemicals (“Inorganics”) segment primarily produces TiO_2, but also produces titanium tetrachloride (“TiCl₄”), ultra-fine TiO_2, silica gel and cadmium-based pigments.

In 2004, TiO₂ markets benefited from stronger demand and reduced capacity. Millennium estimates global TiO₂ demand in 2004 increased approximately 6% to 8% compared to 2003, reflecting improved global economic conditions. Industry operating rates for TiO₂ production increased from the 2003 level of 85% to an average 91% in 2004. In 2004, margins for the Inorganics segment were unchanged as higher manufacturing and other costs of sales offset the benefits of higher sales prices and volumes.

In 2003, demand for TiO₂ decreased from 2002 primarily due to a weak coatings season in most of North America as a result of poor weather conditions as well as weak global economic conditions throughout most of the year. Millennium’s average 2003 selling prices for TiO₂ were higher than in 2002. Sales prices measured in U.S. dollars were higher, in part, due to the strengthening of the euro, the British pound and the Australian dollar versus the U.S. dollar. However, the weakening U.S. dollar also increased foreign currency-based manufacturing costs, when measured in U.S. dollars, which substantially offset the associated revenue increases. Measured in local currencies, the higher 2003 TiO₂ sales prices were insufficient to offset higher 2003 manufacturing costs, resulting in lower margins and income for the Inorganics segment.

Operating results for the Inorganics segment included pretax asset impairment charges of $14 million and $103 million in 2004 and 2003, respectively, associated primarily with the write-down of property, plant and equipment at the Le Havre, France TiO₂ manufacturing facility.

Revenues—Revenues of $1,340 million in 2004 increased 14% compared to revenues of $1,172 million in 2003, primarily due to higher sales volumes and the favorable effect of translating sales denominated in stronger foreign currencies into weaker U.S. dollars. Sales volumes in 2004 for TiO₂ increased 13% compared to 2003, reflecting increases in all major markets and geographic regions. Average sales prices in 2004 were 3% lower in local currencies and 1% higher in U.S. dollars compared to 2003. In local currency terms, average 2004 sales prices were lower than in 2003 as sales price increases during the latter half of 2004 failed to offset sales price declines in the first half of 2004.

Revenues for 2003 increased 4%, to $1,172 million. Average U.S. dollar TiO₂ sales prices for 2003 increased 11% compared to 2002. Average local currency sales prices increased by 5%, while translation of foreign currency-based sales prices to a weaker U.S. dollar increased U.S. dollar sales prices by 6% compared to 2002. During 2003, local currency sales prices increased in all major geographic regions. In 2003, TiO₂ sales volumes decreased 6% from 2002. Sales volumes decreased from the prior year in all major markets and geographic regions, except for Central and South America. Contrary to traditional TiO₂ demand trends, the second half of 2003 was stronger due primarily to the lack of a coatings season in the first half of 2003 as a result of the poor weather conditions in most of North America, as well as weak global economic conditions.

Cost of Sales—Cost of sales was $1,140 million in 2004, a 13% increase compared to 2003 cost of sales of $1,007 million. The increase reflected the 13% increase in sales volumes, and the unfavorable effects of translating manufacturing costs incurred in stronger foreign currencies into a weaker U.S. dollar.

Cost of sales of $1,007 million in 2003 increased 7% compared to $944 million in 2002. Costs increased primarily due to the unfavorable effect of translating foreign currency-based manufacturing costs into a weaker U.S. dollar, higher maintenance and other fixed costs, and higher costs for utilities, including natural gas.

SG&A Expenses—SG&A costs increased $13 million, or 13%, compared to the prior year, reflecting higher employee benefit costs and professional service expenses. SG&A costs for 2003 decreased by $10 million or 8% compared to the prior year primarily due to lower employee-related costs, partially offset by higher expenses for professional services.

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Operating Income—The Inorganics segment had operating income of $51 million in 2004 compared to an operating loss of $53 million in 2003. The operating loss in 2003 included asset impairment charges of $103 million related primarily to the Le Havre, France manufacturing facility. The remaining improvement of $7 million reflected higher sales volume, $22 million; and higher average sales prices, $23 million; partially offset by higher manufacturing and other costs of sales, $25 million; and higher SG&A costs, $13 million. Operating income for 2004 also included $14 million of asset impairment charges related to the Le Havre, France manufacturing facility and a net charge of $6 million for write-off of assets.

The Inorganics segment had an operating loss of $53 million in 2003 and operating income of $64 million in 2002. The operating loss for 2003 included asset impairment charges of $103 million associated primarily with the Le Havre, France manufacturing facility. Operating income in 2003 also decreased by a net $14 million primarily due to higher manufacturing and other costs of sales, $106 million; and lower sales volumes, $7 million; partially offset by higher average sales prices, $93 million; and lower SG&A costs, $6 million.

Ethylene, Co-products and Derivatives Segment

Millennium’s EC&D segment comprises its wholly owned acetyls business and its equity investment in Equistar.

Acetyls Business

Overview—The acetyls business produces and markets vinyl acetate monomer (“VAM”), acetic acid and methanol. During 2004, the acetyls business benefited from a cyclical turnaround in the chemical industry as a stronger global economy led to increased demand and tighter chemical industry supply/demand balances compared to 2003. In this improved business environment, the acetyls business generally benefited from higher product margins in 2004 compared to 2003.

Acetyls production costs increased in 2004 compared to 2003 primarily due to higher raw material and energy costs, particularly natural gas and ethylene. However, the increases in production costs were more than offset by higher average selling prices, contributing to higher margins in the acetyls business.

Revenues—Acetyls revenues of $453 million in 2004 increased by $32 million, or 8%, compared to revenues of $421 million in 2003 primarily due to higher average sales prices, which were partly offset by lower sales volumes. In 2004, the aggregate U.S. dollar price for VAM and acetic acid was 13% higher than in 2003. Average 2004 sales prices were higher than in 2003 as a result of sales price increases and the favorable effect of translating foreign currency-denominated sales into U.S. dollars. The price increases were implemented in response to higher raw material and energy costs. The sales volume decrease in 2004 compared to 2003 primarily reflected lower methanol sales volumes.

Revenues for 2003 of $421 million increased 26% compared to 2002, primarily due to higher average sales prices. In 2003, the aggregate U.S. dollar price for VAM and acetic acid was 23% higher than in 2002. The increased value in U.S. dollar terms of foreign currency-denominated sales also contributed to the increase in net sales due to the weaker U.S. dollar. The aggregate sales volume for VAM and acetic acid for 2003 increased 2% over 2002, primarily due to higher acetic acid sales volumes.

Cost of Sales—Acetyls costs of sales of $382 million in 2004 was comparable to $384 million in 2003, and reflected higher raw material and energy costs, particularly ethylene and natural gas. These increases were substantially offset by decreases in costs of sales because of lower methanol sales volumes.

In 2003, cost of sales of $384 million increased 26% compared to $305 million in 2002. The increase was primarily due to higher raw material and energy costs, particularly ethylene and natural gas.

SG&A Expenses—SG&A costs for 2004 were $11 million compared to $9 million in 2003, primarily due to higher employee benefit costs and professional service expenses. SG&A costs for 2003 were $9 million, or

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47%, lower than $17 million in 2002, primarily due to lower legal expenses and cost savings related to Millennium’s cost reduction initiatives.

Operating Income—The acetyls business had operating income of $59 million in 2004 compared to operating income of $26 million in 2003. The $33 million increase was primarily due to higher sales prices of $39 million, partially offset by $7 million lower sales volumes.

Operating income for 2003 of $26 million increased by $14 million from operating income of $12 million in 2002. The increase was primarily due to $88 million higher sales prices and $8 million lower SG&A expenses, partially offset by $82 million higher manufacturing and other costs of sales.

Equity Investment in Equistar

Overview—Equistar produces ethylene and its co-products, primarily propylene, butadiene and aromatics, which include benzene and toluene. Equistar also produces derivatives, primarily polyethylene (including high density polyethylene (“HDPE”), low density polyethylene (“LDPE”) and linear-low density polyethylene (“LLDPE”)), ethylene glycol, ethylene oxide and its derivatives, and ethanol. Equistar also produces methyl tertiary butyl ether (“MTBE”), alkylate and polypropylene. As a result of the acquisition of Millennium by Lyondell on November 30, 2004, Equistar became a wholly owned subsidiary of Lyondell. Millennium continues to hold a 29.5% interest in Equistar. The following discussion of Equistar’s operations is on a 100% basis.

During 2004, the chemical industry experienced broad-based improvements as a stronger global economy led to increased demand and tighter chemical industry supply/demand balances compared to 2003. U.S. ethylene demand grew an estimated 9% in 2004 compared to 2003. In this improved business environment, the industry experienced higher sales volumes and generally higher product margins in 2004 compared to 2003.

Benchmark crude oil and natural gas prices generally have been indicators of the level and direction of movement of raw material and energy costs for Equistar. Ethylene and co-products are produced from two major raw material groups:

Equistar has the ability to shift its ratio of raw materials used in the production of ethylene and co-products to take advantage of the relative costs of liquids and NGLs.

The following table shows the average benchmark prices for crude oil and natural gas for the applicable three-year period, as well as benchmark sales prices for ethylene and co-product propylene, which Equistar produces and sells. The benchmark weighted average cost of ethylene production is based on CMAI’s estimated ratio of crude-oil based liquid raw materials and NGLs used in U.S. ethylene production and is subject to revision.

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Equistar was able to implement sales price increases in many products that more than offset the effect of significantly higher raw material and energy costs during 2004 and 2003. In addition to higher sales prices for ethylene and derivatives, Equistar was able to implement significant sales price increases for co-products such as propylene, benzene and fuels. The higher raw material and energy costs in 2004 and 2003 reflected the effect of a significant escalation in crude oil prices and ongoing high natural gas costs compared to 2002.

The magnitude of price increases had a negative effect on product demand in 2003, and contributed to Equistar experiencing lower sales volumes in 2003 compared to 2002. For the year 2003, U.S. industry ethylene demand decreased slightly compared to 2002. In addition, Equistar completed scheduled maintenance turnarounds at its two largest ethylene plants in 2003.

Revenues—Revenues of $9,316 million in 2004 increased 42% compared to revenues of $6,545 million in 2003, reflecting higher average sales prices and volumes. Benchmark ethylene sales prices were 18% higher in 2004 compared to 2003. Benchmark benzene sales prices averaged 87% higher and benchmark propylene sales prices averaged 49% higher in 2004 compared to 2003. Benchmark prices of HDPE averaged 20% higher in 2004 than in 2003. Ethylene and derivatives sales volumes were 10% higher in 2004 compared to 2003.

Revenues of $6,545 million in 2003 increased 18% compared to revenues of $5,537 million in 2002 due to higher sales prices, partly offset by a decrease in sales volumes. Benchmark ethylene prices averaged 28% higher in 2003 compared to 2002 in response to significant increases in the cost of ethylene production, while benchmark propylene sales prices averaged 19% higher. Sales volumes were lower in 2003 compared to 2002 due to the negative effect of price increases on product demand and maintenance turnarounds noted above, as well as the sale of the polypropylene production facility in Pasadena, Texas in 2003.

Cost of Sales—Cost of sales of $8,587 million in 2004 increased 34% compared to $6,387 million in 2003 due to higher costs of raw materials and energy in 2004 compared to 2003. The benchmark price of crude oil averaged 33% higher in 2004 than in 2003, while benchmark natural gas prices averaged 10% higher.

Cost of sales of $6,387 million in 2003 increased 19% compared to $5,388 million in 2002. Benchmark natural gas prices averaged 63% higher, and the benchmark price of crude oil averaged 19% higher in 2003 than in 2002.

SG&A Expenses—SG&A expenses were $197 million in 2004, $182 million in 2003 and $155 million in 2002. The $15 million increase in 2004 compared to 2003 was primarily due to incentive compensation cost increases in 2004, reflecting the effect of Equistar’s improved performance. The $27 million increase in 2003 compared to 2002 was primarily due to higher employee benefit costs, including $6 million in employee severance costs in 2003.

Gain (Loss) on Asset Dispositions—Equistar had a gain of $4 million in 2004 and a loss of $27 million in 2003 from disposal of assets. The 2003 loss included a $12 million loss from the sale of Equistar’s polypropylene production facility in Pasadena, Texas and an $11 million charge for the write-off of a research and development (“R&D”) facility for derivatives.

Interest Expense—Interest expense was $227 million in 2004, $215 million in 2003 and $205 million in 2002. During this three-year period, Equistar refinanced variable rate debt with fixed rate debt that had longer terms to maturity and higher interest rates, which resulted in the higher interest expense.

Other Income (Expense), Net—Equistar had other expense, net of $6 million in 2004, and $43 million in 2003 and other income, net of $2 million in 2002. The 2003 net expense of $43 million included $37 million of refinancing costs.

Net Income—Equistar’s net income was $276 million in 2004, compared to a net loss of $339 million in 2003. The $615 million improvement in 2004 was primarily due to higher product margins and higher sales

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volumes in 2004 due to improved supply/demand fundamentals compared to 2003. The higher sales prices more than offset the effect of significantly higher raw material and energy costs compared to 2003. In addition to higher sales prices for ethylene and derivatives, Equistar benefited from significantly higher prices for co-products such as propylene, benzene and fuels compared to 2003. The higher raw material and energy costs during 2004 reflected the effect of 33% higher average benchmark crude oil prices in 2004, as well as ongoing high natural gas prices compared to 2003. Also, ethylene and derivative sales volumes in 2004 were 11% higher compared to 2003. The net loss in 2003 included the $37 million of refinancing costs, the $12 million loss from the sale of the polypropylene production facility, the $11 million charge for the write-off of the R&D facility, as well as $6 million of employee severance costs.

Equistar had a 2003 net loss of $339 million compared to a 2002 loss of $246 million before the cumulative effect of an accounting change in 2002. The $93 million higher loss in 2003 included the $37 million of refinancing costs, the $12 million loss on the sale of the polypropylene plant, the $11 million charge for the write-off of the R&D facility, and the $6 million of employee severance costs. The 2002 net loss included a $33 million negative impact of certain fixed price natural gas and NGL purchase contracts entered into in early 2001. The remaining $60 million decrease in operating results was primarily due to lower sales volumes, which were only partly offset by higher average product margins in 2003. In addition, SG&A expenses in 2003 were $27 million higher than in 2002, primarily due to higher employee benefit costs.

Cumulative Effect of Accounting Change—Effective January 1, 2002, Equistar adopted Statement of Financial Accounting Standards (“SFAS”) No. 142, Goodwill and Other Intangible Assets. Upon implementation of SFAS No. 142, Equistar reviewed goodwill for impairment and concluded that the entire balance of goodwill was impaired, resulting in a $1.1 billion charge that was reported as the cumulative effect of an accounting change as of January 1, 2002. As a result of Equistar’s impairment of goodwill in 2002, Millennium reduced the carrying value of its investment in Equistar by $30 million, which was reported as the cumulative effect of an accounting change.

Other

Other operations include Millennium’s flavors and fragrances business, and unallocated operating expenses that are not identified with the reportable business segments.

Other operating losses were $103 million in 2004, $30 million in 2003 and $9 million in 2002. The 2004 amount included $71 million of business combination costs, $31 million of accruals for estimated environmental remediation costs and $3 million of reorganization costs. The $30 million in 2003 primarily included $18 million in reorganization and office closure charges and accruals for estimated environmental remediation costs of $3 million. The $9 million in 2002 consisted of a net increase in accruals for estimated environmental remediation costs.

FINANCIAL CONDITION

Operating Activities—Operating activities provided cash of $195 million in 2004, used cash of $92 million in 2003 and provided cash of $80 million in 2002. The $287 million improvement in operating cash flow in 2004 compared to 2003 was primarily due to earnings of $81 million from Millennium’s investment in Equistar, which were distributed to Millennium and a reduction of $56 million in inventories. A net decrease in the main components of working capital – receivables, inventories and payables - provided cash of $60 million in 2004 compared to 2003 when a net increase in these items used cash of $120 million.

As noted, operating activities used cash of $92 million in 2003 and provided cash of $80 million in 2002. The use of cash in operating activities during 2003 was primarily due to the cash used by an increase in the main

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components of working capital and lower operating income. The increase in the main components of working capital in 2003 compared to 2002 was primarily due to the termination of Millennium’s European receivables securitization program (see “Off-Balance Sheet Arrangements” below), which increased receivables balances, and the timing of vendor payments, which reduced payables balances.

Investing Activities—Investing activities used cash of $41 million in 2004, $48 million in 2003 and $64 million in 2002. In 2004, Millennium received $12 million of distributions in excess of earnings from its equity investment in Equistar.

Capital expenditures were $55 million in 2004, $48 million in 2003 and $65 million in 2002. Millennium’s capital expenditures in 2004 and 2003 reflected a continued focus on optimization of its capital base. Capital expenditures in these years primarily included replacement capital projects and certain environmental, cost reduction, and yield-improvement projects. Planned capital spending in 2005 is projected to be approximately $85 million primarily for base asset support and projects to improve manufacturing efficiency.

Financing Activities—Financing activities used cash of $38 million in 2004, provided cash of $205 million in 2003 and used cash of $4 million in 2002. In 2004 cash was used to prepay $55 million of debt, and cash proceeds from stock option exercises were $17 million. During 2003, $222 million of net debt proceeds were received and cash dividends of $17 million were paid.

In the fourth quarter of 2003, Millennium received approximately $150 million in gross proceeds from the sale of $150 million aggregate principal amount of 4.00% Convertible Senior Debentures. The proceeds were used to repay $47 million in term loans and $103 million revolving loans. Millennium used $4 million of cash to pay the fees relating to the sale of the 4.00% Convertible Senior Debentures.

In April 2003, Millennium received approximately $107 million in net proceeds from the issuance and sale of an additional $100 million principal amount of its 9.25% Senior Notes. The proceeds were used to repay $85 million of revolving loans under its credit facility and for general corporate purposes.

In June 2002, Millennium received approximately $100 million in net proceeds from the offering of an additional $100 million principal amount of 9.25% Senior Notes. The net proceeds of the offering were used to repay $35 million of revolving loans and $65 million of term loans under its credit facility.

Dividends paid in 2003 totaled $17 million. In July 2003, Millennium announced the suspension of the payment of dividends on its Common Stock and has not since paid dividends. Millennium is currently prohibited from paying dividends pursuant to a covenant under Millennium’s 9.25% Senior Notes.

Liquidity and Capital Resources—Millennium’s balance sheet remains highly leveraged. As of December 31, 2004, total debt was $1,405 million. At December 31, 2004 Millennium had $25 million of outstanding letters of credit and no borrowing under its $150 million secured revolving credit facility and, accordingly, had $125 million of unused availability under its five-year credit facility, which matures in June 2006.

Historically, Millennium has financed its operations primarily through cash generated from its operations, cash distributions from Equistar, and debt financing. Cash generated from operations is, to a large extent, dependent on economic, financial, competitive and other factors affecting Millennium’s businesses. The amount of cash distributions received from Equistar is affected by Equistar’s results of operations and current and expected future cash flow requirements. In addition, Equistar’s ability to make distributions to its owners, including Millennium, may be affected by an additional interest requirement in certain of Equistar’s indentures. Equistar resumed making cash distributions to its owners, and Millennium received $93 million from Equistar, during 2004.

Millennium’s ability to pay or refinance its debt will depend on future operating performance, which could be affected by general economic, financial, competitive, legislative, regulatory, business and other factors, many

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of which are beyond its control. Millennium believes that conditions will be such that cash balances, cash generated from operating activities, cash distributions from its Equistar joint venture and funds from lines of credit will be adequate to meet anticipated future cash requirements, including scheduled debt repayments, necessary capital expenditures and ongoing operations.

The credit facility contains various restrictive covenants and requires Millennium to maintain specified financial ratios. Millennium obtained amendments to the credit facility in the fourth quarter of 2001, the second quarters of 2002 and 2003 and the fourth quarter 2003 to provide additional financial flexibility by easing certain financial ratio requirements. The amendment in the second quarter of 2002 was conditioned upon the 2002 offering of $100 million principal amount of the 9.25% Senior Notes and the use of the proceeds for the repayment of the credit facility debt. The amendment in the fourth quarter of 2003 was conditioned on Millennium obtaining $110 million of long-term financing, which was satisfied by the sale of $150 million of the 4.00% Convertible Senior Debentures. The amendment in the fourth quarter of 2003 also reduced the maximum availability under the credit facility from $175 million to $150 million. Millennium also obtained an amendment to its credit facility in July 2004 to permit the business combination with Lyondell. On February 2, 2005, Millennium entered into an amendment and waiver to its credit facility, which amended the definition of EBITDA and waived any and all defaults and events of default that may have occurred on or prior to the amendment and waiver as a result of certain adjustments and charges related to a February 2005 restatement of Millennium’s financial statements.

Under the terms of its credit facility, Millennium is not permitted: (1) to allow the Senior Secured Leverage Ratio, as defined, for the period of four consecutive fiscal quarters ending on the indicated dates below, to be more than the indicated ratio, or (2) to allow the Interest Coverage Ratio, as defined, for the period of four consecutive fiscal quarters ending on the indicated dates below, to be less than the indicated ratio.

The covenants in the credit facility, the indenture under which the 7.00% and 7.625% Senior Debentures were issued and the indenture under which the 9.25% Senior Notes were issued limit, among other things, the ability of Millennium and/or certain subsidiaries of Millennium to incur debt, create liens, engage in sale/leaseback transactions, declare or pay dividends on, or purchase, Millennium’s stock, make restricted payments, engage in transactions with affiliates, engage in mergers or acquisitions, engage in domestic accounts receivable securitization transactions, enter into restrictive agreements, transfer substantially all of their respective assets, issue redeemable stock and preferred stock, sell or otherwise dispose of assets, including capital stock of subsidiaries and enter into arrangements that restrict dividends from subsidiaries. Pursuant to these provisions, Millennium currently is prohibited from making restricted payments, including paying dividends.

Millennium has outstanding $150 million aggregate principal amount of 4.00% Convertible Senior Debentures, which are due in 2023, unless earlier redeemed, converted or repurchased. On October 1, 2004, based on a quarterly test related to the price of the common stock, the 4.00% Convertible Senior Debentures became convertible into shares of Millennium’s common stock. As a result of Lyondell’s acquisition of Millennium, Millennium and Lyondell executed a supplemental indenture providing that the holders of the 4.00% Convertible Senior Debentures may convert their debentures into shares of Lyondell’s common stock (or equivalent cash or a combination thereof) at a conversion price as of December 31, 2004, subject to adjustment upon certain events, of $13.63 per share, which is equivalent to a conversion rate of 73.36 Lyondell shares per one thousand dollar principal amount of the debentures. As of December 31, 2004, none of the 4.00% Convertible Senior Debentures were converted into shares of Lyondell common stock.

The debentures are redeemable at Millennium’s option beginning November 15, 2010 at a redemption price equal to 100% of their principal amount. On November 15 in each of 2010, 2013 and 2018, holders of the

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debentures will have the right to require Millennium to repurchase all or some of the debentures they own at a purchase price equal to 100% of their principal amount. Millennium may choose to pay the purchase price in cash or shares of Lyondell’s common stock or any combination thereof. In the event of a conversion request as a result of the long-term credit rating assigned to the debentures being either Caa1 or lower, in the case of Moody’s Investors Service (“Moody’s”), or B- or lower in the case of Standard & Poor’s (“S&P”) rating service, or if both rating agencies discontinue, withdraw or suspend their ratings, after June 18, 2006, Millennium can deliver cash, or a combination of cash and shares of Lyondell common stock, in lieu of shares of Lyondell common stock. The debentures are currently rated B1 by Moody’s and B+ by S&P. Holders of the debentures also have the right to require Millennium to repurchase all or some of the debentures at a cash purchase price equal to 100% of their principal amount, upon the occurrence of certain events constituting a Fundamental Change, as defined. Lyondell’s acquisition of Millennium was not considered a Fundamental Change, as defined in the indenture.

The breach of the covenants in Millennium’s debt agreements could permit the lenders to declare any outstanding Millennium debt payable and could permit the lenders under Millennium’s credit facility to terminate future lending commitments. Millennium was in compliance with all covenants under its debt agreements as of December 31, 2004.

The credit facility is guaranteed by Millennium and Millennium America Inc., a subsidiary of Millennium (“Millennium America”); the 7.00% Senior Notes, 7.625% Senior Debentures and 9.25% Senior Notes were issued by Millennium America and are fully and unconditionally guaranteed by Millennium; and the 4.00% Convertible Senior Debentures were issued by Millennium and are fully and unconditionally guaranteed by Millennium America.

Off-Balance Sheet Arrangements—The Securities and Exchange Commission (“SEC”) has described various characteristics to identify contractual arrangements that would fall within the SEC’s definition of off-balance sheet arrangements. Millennium was a party to the following accounts receivable sales facility that had some of those characteristics.

From March 2002 until November 2003, Millennium sold its interest in certain European trade receivables to an unaffiliated third party under a revolving securitization arrangement with maximum availability of 70 million euros. In November 2003, Millennium terminated this securitization arrangement. There were no balances outstanding at December 31, 2004 or 2003.

Contractual and Other Obligations—The following table summarizes as of December 31, 2004 Millennium’s minimum payments for long-term debt, and contractual and other obligations for the next five years and thereafter:

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Long-Term Debt—Millennium’s credit facility, 4% Convertible Senior Debentures and the indentures governing its Senior Notes contain various restrictive covenants and require Millennium to maintain specified financial ratios. For additional information on Millennium’s long-term debt, see the “Liquidity and Capital Resources” section above and Note 11 to the Consolidated Financial Statements.

Interest Payable—The long-term debt agreements contain provisions for the payment of either monthly or semi-annual interest at a stated rate of interest over the term of the debt. These payment obligations are reflected in the table above.

Pension Benefits—Millennium maintains several defined benefit pension plans as described in Note 14 to the Consolidated Financial Statements. At December 31, 2004, the projected benefit obligation for Millennium’s pension plans exceeded the fair value of plan assets by $241 million. Subject to future actuarial gains and losses, as well as actual asset earnings, Millennium, together with its consolidated subsidiaries, will be required to fund the $241 million, with interest, in future years. The minimum required contribution may reach an annual rate of approximately $24 million by 2007. Millennium’s pension contributions were $15 million, $12 million and $9 million for the years 2004, 2003 and 2002, respectively, and are estimated to be approximately $11 million for 2005. During 2004 and 2002, Millennium recognized increases in its minimum pension liability of $20 million and $286 million, respectively, with a charge to other comprehensive income. During 2003 Millennium reduced the minimum pension liability by $40 million, largely as a result of improved plan asset performance. The $288 million cumulative minimum pension liability represents accumulated pension benefit obligations in excess of pension plan assets at December 31, 2004.

Pension expense for 2004 and 2003 was $30 million and $7 million, respectively and pension income was $7 million for 2002. The 2004 and 2003 pension expense includes $13 million and $3 million curtailment charges, respectively, resulting from severances subsequent to Lyondell’s acquisition of Millennium in 2004 and the 2003 cost reduction program. Due to a reduction in the discount rate assumption related to Millennium’s pension plans and the amortized recognition of pension fund investment losses in the financial markets in recent years prior to 2003, pension expense for 2005 is estimated to be approximately $19 million, comparable to pension expense in 2004, excluding the $13 million curtailment charge.

Other Postretirement Benefits—Millennium provides other postretirement benefits, as described in Note 14 to the Consolidated Financial Statements. Other postretirement benefits are unfunded and are paid by Millennium as incurred. Estimates of other postretirement benefit payments through 2009 are included in the table above.

As a result of rising medical benefit costs and competitive business conditions, effective April 1, 2004 Millennium reduced the level of retiree medical benefits provided to essentially all of its retirees by offering a monthly subsidy in 2004 to retirees that enrolled in designated preferred provider organization plans or Medicare supplement insurance plans. This change reduced Millennium’s accumulated postretirement benefit obligation by approximately $48 million. Beginning in 2004, this reduction will be recognized ratably over approximately thirteen years through the postretirement net periodic benefit cost.

Other noncurrent obligations—Other noncurrent obligations primarily include liabilities for environmental remediation, deferred compensation arrangements and advances from customers.

Deferred income taxes—The scheduled settlement of the deferred tax liabilities shown in the table is based on the scheduled reversal of the underlying temporary differences, all of which would be fully offset during the first five years by Millennium’s tax loss carry forwards. Actual cash tax payments will vary dependent upon future taxable income.

Unconditional purchase obligations—In the ordinary course of business, Millennium enters into contractual obligations to purchase raw materials, utilities and services for fixed or minimum amounts. See the “Commitments” section of Note 16 to the Consolidated Financial Statements for a description of Millennium’s commitments and contingencies, including these purchase obligations.

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VAM toll—Millennium has entered into an agreement with an unrelated party to process acetic acid through that party’s VAM plant. Under the agreement, Millennium will purchase all VAM production at such plant not utilized by the unrelated party through December 31, 2006. The processing fee is based on the market price of ethylene plus a processing charge. The total commitment over the remaining term is approximately $167 million at December 31, 2004 market prices for ethylene. See the “Commitments” section of Note 16 to the Consolidated Financial Statements.

Operating leases—Millennium leases various facilities and equipment under noncancelable lease arrangements for various periods. See Note 12 to the Consolidated Financial Statements for related lease disclosures.

CURRENT BUSINESS OUTLOOK

Overall, Millennium believes that 2005 will be characterized by additional tightening of supply/demand and continued strengthening of product margins. However, volatile and elevated energy prices and their potential impact on the broader global economy continue to be a concern.

RELATED PARTY TRANSACTIONS

Millennium purchases product from Equistar, a joint venture with Lyondell, at market-related prices and, sells product to Equistar and Lyondell at market-based prices. As a result of the acquisition of Millennium by Lyondell on November 30, 2004, Millennium and Lyondell entered into an agreement for the provision of administrative services by Lyondell to Millennium, as well as a tax-sharing agreement.

Millennium believes that all such related party transactions are effected on terms substantially no more or less favorable than those that would have been agreed upon by unrelated parties on an arm’s length basis.

CRITICAL ACCOUNTING POLICIES

Millennium applies those accounting policies that management believes best reflect the underlying business and economic events, consistent with accounting principles generally accepted in the U.S. Millennium’s more critical accounting policies include those related to liabilities for environmental remediation costs, accruals for taxes based on income, the equity interest in Equistar, long-lived assets, the valuation of goodwill, and accruals for long-term employee benefit costs such as pension and postretirement costs. Inherent in such policies are certain key assumptions and estimates made by management. Management periodically updates its estimates used in the preparation of the financial statements based on its latest assessment of the current and projected business and general economic environment. These critical accounting policies have been discussed with Millennium’s Board of Directors. Millennium’s significant accounting policies are summarized in Note 2 to the Consolidated Financial Statements.

Liabilities for Environmental Remediation Costs—Anticipated expenditures related to investigation and remediation of contaminated sites, which include operating facilities and waste disposal sites, are accrued when it is probable a liability has been incurred and the amount of the liability can be reasonably estimated. Only ongoing operating and monitoring costs, the timing of which can be determined with reasonable certainty are discounted to present value. Future legal costs associated with such matters, which generally are not estimable, are not included in these liabilities.

As of December 31, 2004, Millennium’s environmental liability for future remediation costs at all current and former plant sites and Superfund sites totaled $122 million. The liabilities for individual sites range from $1 million to $78 million and are expected to be incurred over a number of years, and not be concentrated in any single year. In the opinion of management, there is no material estimable range of reasonably possible loss in excess of the liabilities recorded for environmental remediation. However, it is possible that new information about the sites for which the accrual has been established, new technology or future developments such as involvement in investigations by regulatory agencies, could require Millennium to reassess its potential exposure related to environmental matters. See Note 16 to the Consolidated Financial Statements.

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Income Taxes—Uncertainties exist with respect to interpretation of complex U.S. federal and non-U.S. tax regulations. Management expects that Millennium’s interpretations will prevail. Also, Millennium has recognized deferred tax benefits totaling $182 million relating to its future utilization of past operating losses. Millennium believes it is more likely than not that the amounts of deferred tax assets in excess of the related valuation reserves, which total $308 million at December 31, 2004, will be realized. Further details on Millennium’s income taxes appear in Note 15 to the Consolidated Financial Statements.

Equity Interest in Equistar—Millennium has evaluated the carrying value of its investment in Equistar at December 31, 2004 using fair value estimates prepared by Lyondell in connection with Lyondell’s accounting for its acquisition of Millennium, and by third parties. Based on those estimates, Millennium has determined that the fair value exceeded Millennium’s carrying value for its Equistar investment. The carrying value of Millennium’s investment in Equistar at December 31, 2004 was $457 million. If future valuation estimates for Millennium’s interest in Equistar are lower than Millennium’s carrying value for its interest in Equistar, an adjustment to write down the investment would be required.

Long-Lived Assets—With respect to long-lived assets, key assumptions include the estimates of useful asset lives and the recoverability of carrying values of fixed assets, and other intangible assets, as well as the existence of any obligations associated with the retirement of fixed assets. Such estimates could be significantly modified and/or the carrying values of the assets could be impaired by such factors as new technological developments, new chemical industry entrants with significant raw material or other cost advantages, uncertainties associated with the U.S. and world economies, the cyclical nature of the chemical and refining industries, and uncertainties associated with governmental actions. Impairments were recorded in 2004 and 2003 for the LeHavre TiO₂ facility.

Due to temporary decreases in demand for Millennium’s products, certain facilities may remain idle until market conditions improve. Assets that are temporarily idled are tested for impairment at the time they are temporarily idled.

Millennium defers the costs of major periodic maintenance and repair activities (“turnarounds”) amortizing such costs over the period until the next expected major turnaround of the affected unit. The balances of such deferred costs totaled $18 million at December 31, 2004 and 2003. During 2004, 2003 and 2002, cash expenditures of approximately $12 million, $15 million and $11 million, respectively, were deferred and are being amortized, generally over 18 months to 3 years. Amortization in 2004, 2003 and 2002, of previously deferred turnaround costs was $12 million, $9 million and $7 million, respectively.

The estimated useful lives of long-lived assets range from 5 to 40 years. Depreciation and amortization of these assets, including amortization of deferred turnaround costs, under the straight-line method over their estimated useful lives totaled $114 million, $126 million and $110 million in 2004, 2003 and 2002, respectively. If the useful lives of the assets were found to be shorter than originally estimated, depreciation and amortization charges would be accelerated.

Additional information on long-lived assets, deferred turnaround costs and related depreciation and amortization appears in Note 9 to the Consolidated Financial Statements.

Goodwill—Goodwill represents the excess of the purchase price over the fair value of net tangible and identifiable intangible assets and liabilities of acquired businesses. Millennium evaluates the carrying value of goodwill annually or more frequently if events or changes in circumstances indicate that the carrying amount may exceed fair value. Recoverability is determined by comparing the estimated fair value of the reporting unit to which the goodwill applies to the carrying value, including goodwill, of that reporting unit. The carrying value of goodwill at December 31, 2004 was $104 million, of which, $56 million and $48 million was associated with Millennium’s inorganic chemicals segment and acetyls business, respectively. The recoverability of Millennium’s goodwill is dependent upon the future valuations associated with these businesses, which could change significantly based upon business performance or other factors.

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Long-Term Employee Benefit Costs—The costs to Millennium of long-term employee benefits, particularly pension and postretirement medical and life insurance benefits, are incurred over long periods of time, and involve many uncertainties over those periods. The net periodic benefit cost attributable to current periods is based on several assumptions about such future uncertainties, and is sensitive to changes in those assumptions. It is management’s responsibility, often with the assistance of independent experts, to select assumptions that in its judgment represent its best estimates of the future effects of those uncertainties. It also is management’s responsibility to review those assumptions periodically to reflect changes in economic or other factors that affect those assumptions.

The current benefit service costs, as well as the existing liabilities, for pensions and other postretirement benefits are measured on a discounted present value basis. The discount rate is a current rate, related to the rate at which the liabilities could be settled. Millennium’s assumed discount rate is based on average rates published by Moody’s and Merrill Lynch for high-quality (Aa rating) ten-year fixed income securities. For the purpose of measuring the U.S. benefit obligations at December 31, 2004, Millennium lowered its assumed discount rate from 6.00% to 5.75%, reflecting the general decline in market interest rates during 2004. The 5.75% rate will also be used to measure net periodic benefit cost during 2005. A further one percentage point reduction in the assumed discount rate for Millennium would increase Millennium’s benefit obligation for pensions and other postretirement benefits by approximately $120 million, and would reduce Millennium’s net income by approximately $6 million.

The benefit obligation and the periodic cost of postretirement medical benefits also are measured based on assumed rates of future increase in the per capita cost of covered health care benefits. As of December 31, 2004, the assumed rate of increase was 8.0%, and decreases one-half percent each year to 5.5% in 2010. A one percentage point change in the health care cost trend rate assumption would have no significant effect on either the benefit liability or the net periodic cost.

The net periodic cost of pension benefits included in expense also is affected by the expected long-term rate of return on plan assets assumption. Investment returns that are recognized currently in net income represent the expected rate of return on plan assets rate applied to a market-related value of plan assets which, for Millennium, is defined as the market value of assets. The expected rate of return on plan assets rate is a longer term rate, and is expected to change less frequently than the current assumed discount rate, reflecting long-term market expectations, rather than current fluctuations in market conditions.

The actual rate of return on plan assets may differ from the expected rate due to the volatility normally experienced in capital markets. Management’s goal is to manage the investments over the long term to achieve optimal returns with an acceptable level of risk and volatility. Based on the market value of plan assets at December 31, 2004, a one percentage point decrease in this assumption for Millennium would decrease Millennium’s net income by approximately $5 million.

Net periodic pension cost recognized each year includes the expected asset earnings, rather than the actual earnings or loss. As a result of asset earnings significantly below the expected return on plan assets rate over the last several years, the level of unrecognized investment losses, together with the net actuarial gains and losses, is $315 million at December 31, 2004. This unrecognized amount, to the extent it exceeds ten percent of the projected benefit obligation for the respective plan, will be recognized as additional net periodic benefit cost over the average remaining service period of the participants in each plan. This annual amortization charge will be approximately $10 million per year based on the December 31, 2004 unrecognized amount.

Additional information on the key assumptions underlying these benefit costs appears in Note 14 to the Consolidated Financial Statements.

ACCOUNTING AND REPORTING CHANGES

On January 1, 2003, Millennium adopted Statement of Financial Accounting Standards (“SFAS”) No. 143, “Accounting for Asset Retirement Obligations” (“SFAS No. 143”). SFAS No. 143 applies to legal obligations

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associated with the retirement of long-lived assets. This standard requires that the fair value of a liability for an asset retirement obligation be recognized in the period in which it is incurred and the associated asset retirement costs be capitalized as part of the carrying amount of the long-lived asset. Accretion expense and depreciation expense related to the liability and capitalized asset retirement costs, respectively, are recorded in subsequent periods. Millennium’s asset retirement obligations arise from activities associated with the eventual remediation of sites used for landfills and mining and include estimated liabilities for closure, restoration, and post-closure care. None of Millennium’s assets are legally restricted for purposes of settling these obligations. As these liabilities are settled, a gain or loss is recognized for any difference between the settlement amount and the liability recorded. Millennium reported an after-tax transition charge of $1 million in the first quarter of 2003 as the cumulative effect of this accounting change. The impact of adoption was to increase Millennium’s reported assets and liabilities by $2 million and $3 million, respectively. The ongoing annual expense resulting from the initial adoption of SFAS No. 143 is expected to be approximately $1 million. Activity associated with the asset retirement obligations other than the effect of initial adoption of SFAS No. 143 was $1 million for each of the years ended December 31, 2004 and 2003, respectively. Disclosure on a pro forma basis of net income and related per-share amounts as if SFAS No. 143 had been applied during all periods presented is omitted because the effect on pro forma net income is not significant. The amount of the asset retirement obligation at December 31, 2004 was $13 million. The pro forma amount of the asset retirement obligation at January 1, 2002 and December 31, 2002, as if SFAS No. 143 had been applied at the beginning of 2002, the earliest year presented, is $11 million and $12 million, respectively.

Effective January 1, 2002, Millennium implemented SFAS No. 142, Goodwill and Other Intangible Assets (“SFAS No. 142”). Upon implementation of SFAS No. 142, Millennium reviewed its goodwill for impairment and concluded that goodwill related to its acetyls business was impaired, resulting in a $275 million charge to Millennium’s earnings that was reported as the cumulative effect of an accounting change as of January 1, 2002. Effective January 1, 2002, Equistar also implemented SFAS No. 142. Upon implementation of SFAS No. 142, Equistar reviewed goodwill for impairment and concluded that the entire balance of goodwill was impaired, resulting in a $1.1 billion charge that was reported as the cumulative effect of an accounting change as of January 1, 2002. As a result of Equistar’s impairment of goodwill in 2002, Millennium reduced the carrying value of its investment in Equistar by $30 million, which was also reported as the cumulative effect of an accounting change. As a result of implementing SFAS No. 142, Millennium’s pretax income in 2002 and subsequent years is favorably affected by $23 million annually because of the elimination of Millennium’s goodwill amortization.

ANTICIPATED ACCOUNTING CHANGES

In November 2004, the FASB issued SFAS No. 151, Inventory Costs. The primary impact of the statement on Millennium will be recognition as period costs of any abnormal amounts of idle facility expense, freight, handling costs, and spoilage. The provisions of SFAS No. 151 will be applied prospectively upon implementation in 2005. Millennium does not expect application of SFAS No. 151 to have a material impact on its financial statements.

In December 2004, the FASB issued SFAS No. 123 (revised 2004), Share-Based Payment. The primary focus of this Statement is accounting for transactions in which an entity obtains employee services in share-based payment transactions, such as by the granting of stock options. Millennium will be required to apply SFAS No. 123 (revised 2004) no later than the third quarter 2005 and will be required to use the fair-value-based method of accounting for share-based payment transactions with employees on a prospective basis rather than the intrinsic method previously allowed by APB Opinion No. 25, Accounting for Stock Issued to Employees. The implementation of SFAS No. 123 (revised 2004) is not expected to be material to Millennium’s financial statements.

Also in December 2004, the FASB issued SFAS No. 153, Exchanges of Nonmonetary Assets, which amends APB Opinion No. 29, Accounting for Nonmonetary Transactions, to eliminate the exception for nonmonetary exchanges of similar productive assets, which is replaced with a general exception for exchanges of nonmonetary assets that do not have commercial substance. A nonmonetary exchange is defined to have commercial substance

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if the future cash flows of the entity are expected to change significantly as a result of the exchange. Millennium will be required to adopt SFAS No. 153 no later than the third quarter 2005 with prospective application. Millennium is currently evaluating the impact, if any, that application of SFAS No. 153 will have on its financial statements.

ENVIRONMENTAL AND LEGAL MATTERS

A Millennium subsidiary has been identified as a PRP with respect to the Kalamazoo River Superfund Site. The site involves cleanup of river sediments and floodplain soils contaminated with PCBs, cleanup of former paper mill operations, and cleanup and closure of landfills associated with the former paper mill operations. In 2000, the KRSG, of which the subsidiary and other PRPs are members, submitted to the State of Michigan a Draft Remedial Investigation and Draft Feasibility Study, which evaluated a number of remedial options for the river. The estimated costs for these remedial options ranged from $0 to $2.5 billion.

At the end of 2001, the U.S. Environmental Protection Agency (“EPA”) took lead responsibility for the river portion of the site at the request of the State of Michigan. In 2004, the EPA initiated a confidential process to facilitate discussions among the agency, the Millennium subsidiary, other PRPs, the Michigan Departments of Environmental Quality and Natural Resources, and certain federal natural resource trustees about the need for additional investigation activities and different possible approaches for addressing the contamination in and along the Kalamazoo River.

As of December 31, 2004, the probable liability associated with the river cannot be determined with certainty. A liability of $40 million has been recognized, representing Millennium’s interim allocation of 55% of the $73 million estimated cost of bank stabilization, recommended as the preferred remedy in 2000 by the KRSG. Although the KRSG study identified a broad range of remedial options, not all of those options would represent reasonably possible outcomes. Management does not believe that it can identify a single remedy among those options that would represent the highest-cost reasonably possible outcome.

In addition, Millennium has recognized a liability of $38 million primarily related to its estimated share of remediation costs for two former paper mill sites and associated landfills which are also part of the Kalamazoo River Superfund Site. Although no final agreement has been reached as to the ultimate remedy for these locations, Millennium has begun remediation activity related to these sites.

Millennium’s ultimate liability for the Kalamazoo River Superfund Site will depend on many factors that have not yet been determined, including the ultimate remedy selected, the determination of natural resource damages, the number and financial viability of the other PRPs, and the determination of the final allocation among the PRPs.

As of December 31, 2004, Millennium’s environmental liability for future remediation costs at all current and former plant sites and Superfund sites totaled $122 million. The liabilities for individual sites range from $1 million to $78 million and are expected to be incurred over a number of years, and not be concentrated in any single year. In the opinion of management, there is no material estimable range of reasonably possible loss in excess of the liabilities recorded for environmental remediation. However, it is possible that new information about the sites for which the accrual has been established, new technology or future developments such as involvement in investigations by regulatory agencies, could require Millennium to reassess its potential exposure related to environmental matters.

Under the Clean Air Act, the eight-county Houston/Galveston region has been designated a severe non-attainment area for ozone by the U.S. Environmental Protection Agency (“EPA”) under a “one-hour” ozone standard. Emission reduction controls for nitrogen oxides (“NOx”), which contribute to ozone formation, must be installed at each of Equistar’s six facilities and Millennium’s two facilities in the Houston/Galveston region prior to a November 2007 compliance deadline for the one-hour ozone standard. In addition, in December 2004, the regulatory agency for the state of Texas, the Texas Commission on Environmental Quality, or “TCEQ,” finalized

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controls over highly reactive, volatile organic compounds (“HRVOCs”). Equistar and Millennium are still assessing the impact of the HRVOC rules. In April 2004, the EPA designated the eight-county Houston/Galveston region a moderate non-attainment area under an “eight-hour” ozone standard. As a result, the TCEQ must submit a plan to the EPA in 2007 to demonstrate compliance with the eight-hour ozone standard in 2010. Although the one-hour ozone standard expires in 2005, the controls under that standard will not be relaxed under the EPA’s new eight-hour transition rules. As a result, Equistar and Millennium still will be required to meet the new emission standards for NOx and HRVOCs. The timing and amount of the estimated expenditures are subject to these regulatory and other uncertainties, as well as to obtaining the necessary permits and approvals. The ultimate cost of implementing any plan developed to comply with the final ozone standards cannot be estimated at this time.

Together with alleged past manufacturers of lead-based paint and lead pigments for use in paint, Millennium has been named as defendant in various legal proceedings alleging that it and other manufacturers are responsible for personal injury, property damage, and remediation costs allegedly associated with the use of these products. The plaintiffs in these legal proceedings include municipalities, counties, school districts, individuals and the State of Rhode Island, and seek recovery under a variety of theories, including negligence, failure to warn, breach of warranty, conspiracy, market share liability, fraud, misrepresentation and nuisance. The majority of these legal proceedings assert unspecified monetary damages in excess of the statutory minimum and, in certain cases, contain general language requesting equitable relief from defendants such as abatement of lead-based paint in buildings. Legal proceedings relating to lead pigment or paint are in various procedural stages of pre-trial, post-trial and post-dismissal settings.

Millennium’s defense costs to date for lead-based paint and lead pigment litigation largely have been covered by insurance. Millennium has not accrued any liabilities for any lead-based paint and lead pigment litigation. Millennium has insurance policies that potentially provide approximately $1 billion in indemnity coverage for lead-based paint and lead pigment litigation. Millennium’s ability to collect under the indemnity coverage would depend upon the timing of any request for indemnity and the solvency of the various insurance carriers that are part of the coverage block at the time of such a request. As a result of insurance coverage litigation initiated by Millennium, an Ohio trial court issued a decision in 2002 effectively requiring certain insurance carriers to resume paying defense costs in the lead-based paint and lead pigment cases. Indemnity coverage was not at issue in the Ohio court’s decision. The insurance carriers may appeal the Ohio decision regarding defense costs, and they have in the past and may in the future attempt to deny indemnity coverage if there is ever a settlement or an adverse judgment in any lead-based paint or lead pigment case.

Item 7A. Disclosure of Market and Regulatory Risk

See Note 13 to the Consolidated Financial Statements for discussion of Millennium’s management of foreign currency exposure, commodity price risk and interest rate risk through its use of derivative instruments and hedging activities.

Commodity Price Risk

A substantial portion of Millennium’s products and raw materials are commodities whose prices fluctuate as market supply and demand fundamentals change. Accordingly, product margins and the level of Millennium’s profitability tend to fluctuate with changes in the business cycle.

Millennium selectively entered into commodity derivative hedging transactions, primarily price swaps, options, and futures, to help manage the exposure to commodity price risk with respect to purchases of raw materials and product sales. The net gain recognized in earnings in 2004 was less than $1 million. During 2004, 2003 and 2002 the derivative transactions were not significant compared to Millennium’s overall inventory purchases and product sales. Millennium had no outstanding commodity derivative transactions at December 31, 2004.

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Foreign Exchange Risk

Millennium manufactures and markets its products in a number of countries throughout the world and, as a result, is exposed to changes in foreign currency exchange rates. Costs in some countries are incurred, in part, in currencies other than the applicable functional currency. Millennium’s non-U.S. operations account for approximately 61% of consolidated revenues and 41% of consolidated assets. Millennium selectively utilizes forward, swap and option derivative contracts with terms normally lasting less than three months to protect against the adverse effect that exchange rate fluctuations may have on foreign currency denominated trade receivables and trade payables. These derivatives generally are not designated as hedges for accounting purposes. At December 31, 2004, foreign currency forward and swap contracts in the notional amount of $104 million were outstanding. Assuming a 10% unfavorable change in foreign exchange rates, the negative impact on earnings would be approximately $6 million after tax. Sensitivity analysis was used for this purpose.

Interest Rate Risk

Millennium selectively uses derivative instruments to manage the ratio of fixed- to variable-rate debt. At December 31, 2004, Millennium had outstanding interest rate swap agreements in the notional amount of $175 million, which were designated as fair-value hedges of underlying fixed-rate obligations. The fair value of these interest rate swap agreements was an obligation of $1 million at December 31, 2004, resulting in a decrease in the carrying value of long-term debt and the recognition of a corresponding liability. Assuming a 10% unfavorable change in variable interest rates, the negative impact on the fair value of the obligations would be approximately $2 million. Sensitivity analysis was used for this purpose.

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Item 8. Financial Statements and Supplementary Data

Index to the Consolidated Financial Statements

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholder of

Millennium Chemicals Inc.:

In our opinion, the accompanying consolidated balance sheets and the related consolidated statements of income, cash flows, and changes in stockholders’ equity (deficit), present fairly, in all material respects, the financial position of Millennium Chemicals Inc. and its subsidiaries (the “Company”) at December 31, 2004 and 2003, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2004 in conformity with accounting principles generally accepted in the United States of America. These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits of these statements in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

As discussed in Note 2 to the Consolidated Financial Statements, effective January 1, 2002, the Company adopted Statement of Financial Accounting Standards No. 142, “Accounting for Goodwill and Other Intangible Assets”.

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MILLENNIUM CHEMICALS INC.

CONSOLIDATED STATEMENTS OF INCOME