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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

For the fiscal year ended December 31, 2004

OR

Commission file number 1-32190

NEWMARKET CORPORATION

Incorporated pursuant to the Laws of the Commonwealth of Virginia

Internal Revenue Service Employer Identification No. 20-0812170

330 South Fourth Street

Richmond, Virginia 23219-4350

804-788-5000

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 at least 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 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.    ¨

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

Aggregate market value of voting stock held by non-affiliates of the registrant as of June 30, 2004: $321,249,383.70 *

Number of shares of Common Stock outstanding as of February 28, 2005: 16,981,759

DOCUMENTS INCORPORATED BY REFERENCE

Portions of NewMarket Corporation’s definitive Proxy Statement for its 2005 Annual Meeting of Shareholders to be filed with the Securities and Exchange Commission pursuant to Regulation 14A under the Securities Exchange Act of 1934 (the Proxy Statement) are incorporated by reference into Part III of this Annual Report on Form 10-K.

*In determining this figure, an aggregate of 2,001,049 shares of Common Stock reported in the registrant’s Proxy Statement for the 2005 Annual Meeting of Shareholders as beneficially owned by Bruce C. Gottwald and members of his immediate family have been excluded and treated as shares held by affiliates. See Item 12. The aggregate market value has been computed on the basis of the closing price in the New York Stock Exchange Composite Transactions on June 30, 2004 as reported by The Wall Street Journal.

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Form 10-K

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PART I

ITEM 1.    BUSINESS

In 2004, the Board of Directors of Ethyl Corporation (Ethyl) unanimously recommended and Ethyl’s shareholders approved a new holding company structure. Upon establishment of the holding company structure on June 18, 2004, each share of Ethyl common stock was automatically converted into one share of NewMarket Corporation (NewMarket) common stock. NewMarket common stock began trading on the New York Stock Exchange on June 21, 2004 under the ticker symbol “NEU.”

Following the establishment of the holding company structure, we completed an internal restructuring of our subsidiaries. After the internal restructuring, we continue to operate our business along functional lines, with NewMarket as the parent company of two major operating subsidiaries: Ethyl Corporation and Afton Chemical Corporation (Afton), formerly Ethyl Petroleum Additives, Inc. Each manages its own assets and liabilities. Ethyl represents the tetraethyl lead (TEL) business and certain manufacturing operations and Afton encompasses the petroleum additives business. NewMarket also became the parent company of NewMarket Services Corporation, which provides various administrative shared services to NewMarket, Afton, and Ethyl.

References in this Annual Report on Form 10-K to “we,” “our,” and “NewMarket” are to NewMarket Corporation and its subsidiaries on a consolidated basis, unless the context indicates otherwise.

This new structure mirrors the way we have managed operations for many years and adds what we believe are important strengths. The holding company structure distinguishes the parent from the operating subsidiaries thereby clarifying operational structures. We believe that the holding company structure will facilitate diversification into new markets and will improve financing options.

Equally important, we believe that the new structure allows Afton and Ethyl management to focus on the strategies, systems, and opportunities that offer the greatest potential for their respective product lines and markets. See the “Other Matters” section in “Item 1—Business” for further information on our corporate structure.

As a specialty chemicals company, Afton provides highly formulated packages of lubricant and fuel additives. Afton develops, manufactures and blends fuel and lubricant additive products, and markets and sells these products worldwide. Afton is one of the largest global producers of lubricant additives and we believe offers the broadest line of fuel additives worldwide. Lubricant and fuel additives are necessary products for efficient maintenance and reliable operation of all vehicles and machinery. From additive components to custom-formulated chemical blends, we believe Afton provides customers with products and solutions that make fuels burn cleaner, engines run smoother, and machines last longer.

Afton serves the lubricant and fuel market with three unique brands. HiTEC^® petroleum additives are formulated to provide our customers with a measurable and sustainable marketing or cost advantage. Our GREENBURN^® product line provides immediate, sustained, and economical emission reductions across the entire spectrum of distillate fuels, and our TecGARD^™ brand is specially formulated to improve the reliability and performance of metalworking operations. All three brands are marketed worldwide by Afton employees and our valuable channel partners.

Afton has developed long-term relationships with its customers in every major region of the world, which Afton serves through five manufacturing facilities in North America and Europe.

Afton has more than 200 employees dedicated to research and development who work closely with their customers to develop chemical formulations that are tailored to the customers’ and the end-users’ specific needs. Afton’s portfolio of technologically advanced, value-added products allows it to provide a full range of products and services to its customers.

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Through Ethyl, we are one of the primary marketers of TEL in North America, and through the marketing agreements with The Associated Octel Company Limited and its affiliates (Octel), we are the only marketer of TEL outside of North America.

We were incorporated in the Commonwealth of Virginia in 2004. Our principal executive offices are located at 330 South Fourth Street, Richmond, Virginia, and our telephone number is (804) 788-5000. We employed 1,135 people at year-end 2004.

Business Segments

We report our business in two distinct segments: petroleum additives and TEL. We divide our business this way due to the operational differences between the two business units. The petroleum additives business operates in a market where we actively seek opportunities, while TEL is a mature product with declining demand and is marketed primarily through third-party agreements. Financial information concerning our segments is provided in Item 8, “Financial Statements and Supplementary Data.”

Petroleum Additives—Petroleum additives are used in lubricating oils and fuels to enhance their performance in machinery, vehicles, and other equipment. We manufacture component chemicals that are selected to perform one or more specific functions and blend those chemicals with other components to form packages for use in specified end-user applications. The petroleum additives market is an international marketplace, with customers ranging from oil companies and refineries to vehicle original equipment manufacturers (OEMs) and other specialty chemical companies.

We view the petroleum additives marketplace as being comprised of two broad product groupings: lubricant additives and fuel additives. Lubricant additives are highly formulated chemical products that improve the performance, durability and functionality of mineral oils, thereby enhancing the performance of machinery and engines. Fuel additives are chemical components and products that improve the refining process and performance of gasoline, diesel and other fuels, resulting in lower fuel costs, better vehicle performance, and reduced tailpipe or smoke stack emissions.

Our success in the petroleum additives segment is due to our technical capabilities, our formulation expertise, our close relationships with our customers, our broad differentiated product offerings, and our global distribution capabilities. We invest significantly in research and development in order to meet our customers’ needs, as well as the rapidly changing environment for new and improved products and services.

Lubricant Additives

Lubricant additives are essential ingredients for lubricating oils. Lubricant additives are used in a wide variety of vehicle and industrial applications, including engine oil, automatic transmission fluids, gear oils, hydraulic oils, turbine oils, and in virtually any other application where metal-to-metal moving parts are utilized. Lubricant additives are organic and synthetic chemical components that enhance wear protection, prevent deposits, and protect against the hostile operating environment of an engine, transmission, axle, hydraulic pump, or industrial machine.

Lubricants are used in nearly every piece of operating machinery from heavy industrial equipment to vehicles. Lubricants provide a layer of insulation and protection between moving mechanical parts. Without this layer of protection, the normal functioning of machinery would not occur. Effective lubricants reduce downtime, prevent accidents, and increase efficiency. Specifically, lubricants serve the following main functions:

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The functionality of lubricants is created through an exact balance between a base mineral oil and performance enhancing additives. This balance is the goal of effective formulations achieved by experienced research professionals. We offer a full line of lubricant additive products, each of which is composed of component chemicals specially selected to perform desired functions. We manufacture most of the chemical components and blend these components to create products designed to meet industry and customer specifications. Lubricant additive components are generally classified based upon their intended functionality, including:

We are one of the leading global suppliers of specially formulated lubricant additives that combine some or all of the components described above. Our products are highly formulated, complex chemical compositions derived from extensive research and testing to ensure all additive components work together to provide the intended results. Our products are engineered to meet specifications prescribed by either the industry generally or a specific customer. Purchasers of lubricant additives tend to be oil companies, distributors, and refineries.

Key drivers of lubricant additives demand include total vehicle miles driven, vehicle production, equipment production, the average age of vehicles on the road, new engine and driveline technologies, and drain/refill intervals.

We view the lubricant marketplace as comprising two primary components: engine oil additives and specialty additives. These two components include common customers, are served by our same plants and are supported with a common sales, as well as research and development workforce.

Engine Oil Additives—The largest submarket within the lubricant additives marketplace is engine oils, which we estimate represents approximately 70% of the overall lubricant additives market volume, yet a much lower percentage of the overall market profitability. The engine oil market customers include consumers, service stations, and OEMs. The extension of drain intervals has generally offset increased demand due to higher vehicle population and more miles driven. The primary functions of engine oil additives are to reduce friction, prevent wear, control formation of sludge and oxidation, and prevent rust. Engine oil additives are typically sold to lubricant manufacturers who combine them with a base oil product to meet internal, industry, and OEM specifications.

Key drivers of the engine oils market are the number of vehicles on the road, drain intervals for engine oils, engine and crankcase size, changes in engine design, and temperature and specification changes driven by the OEMs. Customer and supplier dynamics have created a difficult marketplace for engine oil additives in recent years as the marketplace prices engine oil products more like a commodity. This has resulted in significant margin pressure being experienced by producers of engine oil additives.

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Afton’s goal is to improve the profitability of this product line by developing additives that are specially formulated for the vehicles people drive and the way they drive them. Afton offers additives for oils that we believe protect the modern engine and makes additives that are specially formulated to protect high mileage vehicles. Afton offers products that enhance the performance of mineral, part-synthetic, and fully-synthetic engine oils.

Specialty Additives—The specialty additive submarket is comprised of additives designed for products such as automatic transmission fluids (ATF), gear oils, and industrial fluids, which serve both driveline and industrial applications. This submarket comprises approximately 30% of the overall lubricant additives market volume, but a much larger percentage of its overall profitability. ATFs primarily serve as the power transmission and heat transfer medium in the area of the transmission where the torque of the drive shaft is transferred to the gears of the vehicle. Gear additives lubricate gears, bearings, clutches, and bands in the gear-box and are used in vehicles, off-highway, hydraulic, and marine equipment. Other products in this area consist of hydraulic transmission fluids, universal tractor fluids, power steering fluids, shock absorber fluids, gear oils, lubricants for heavy machinery, and vehicle greases. These products must conform to highly prescribed specifications developed by vehicle OEMs for specific models or designs. These additives are generally sold to oil companies and often ultimately to vehicle OEMs for new vehicles (factory-fill). End-products are also sold to service dealers for aftermarket servicing (service-fill). Our TecGARD^™ additives are marketed to the metalworking industry with state-of-the-art solutions for the market.

Key drivers of the specialty additives marketplace are the number of vehicles manufactured, drain intervals for ATF and gear applications, changes in engine and transmission design and temperatures, and specification changes driven by the OEMs.

Fuel Additives

Fuel additives are chemical compounds that are used to improve both the oil refining process and the performance of gasoline, diesel, and other fuels. Benefits of fuel additives in the oil refining process include reduced use of crude oil, lower processing costs, and improved fuel storage properties. Fuel performance benefits include ignition improvements, emission reductions, fuel economy improvements, and engine cleanliness, as well as protection against deposits in fuel injectors, intake valves and the combustion chamber. Our fuel additives are extensively tested and designed to meet stringent industry, government, and OEM requirements.

Many different types of additives are used in fuels. Their use is generally determined by customer, industry, OEM and government specifications and often differs from country to country. The types of fuel additives we offer include:

We believe we offer the broadest line of fuel additives worldwide and sell our products to major fuel marketers and refiners, as well as independent terminals and other fuel blenders.

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Key drivers in the fuel additive marketplace include total vehicle miles driven, the introduction of more sophisticated engines, regulations on emissions (both gasoline and diesel), quality of crude oil slate and performance standards and marketing programs of major oil companies.

Competition

In the lubricant additives submarket of petroleum additives, we believe that the four top suppliers in 2004 supplied over 80% of the market. These suppliers include Lubrizol, Infineum (a joint venture between ExxonMobil Chemical and Shell), Oronite (a subsidiary of ChevronTexaco), and Afton. Several other suppliers comprise the remaining market share.

The fuel additives submarket is fragmented and characterized by more competitors. While we participate in many facets of the fuels market, our competitors tend to be more narrowly focused. In the gasoline detergent market, we compete mainly against BASF and Oronite; in the cetane improver market, we compete against SNPE of France and Exchem of the U.K.; and in the diesel markets, we compete against Lubrizol, Infineum, BASF, and Octel.

The competition among the participants in these industries is characterized by the need to provide customers with cost effective, technologically capable products that meet or exceed industry specifications. The need to continually lower cost through formulation technology and cost improvement programs is vital for success in this environment.

Tetraethyl Lead—TEL is a distinct business segment. TEL is used as an octane enhancer in gasoline to improve ignition qualities and operating performance of fuel. Since the 1920s, TEL has been used to prevent “engine knock,” a condition of poor combustion timing causing loss of engine power. In the 1970s, U.S. automobile manufacturers began including emissions control technology in vehicles to comply with the Federal Clean Air Act. When the surface metal of a catalytic converter in emissions control systems was deemed incompatible with lead, unleaded gasoline became the fuel standard in the United States with other countries following. Octel is now the only manufacturer of TEL worldwide. Through our agreements with Octel, we receive 32% of the net proceeds from the sale of TEL by Octel in all regions of the world except North America. In North America, we continue to purchase a small quantity of TEL from Octel and sell it to selected customers for aviation and racing fuel. Our agreements with Octel expire in 2010, but contain provisions for extensions thereafter.

We expect the market for TEL to continue to decline. The rate of decline will vary from year to year and an exact year-on-year decline rate is difficult to project. The rate of decline will be determined in a large part by major customers’ plans to cease using the product. Our marketing agreements with Octel should help us manage this declining market by providing efficiencies of operation while maximizing cash flow.

Raw Materials and Product Supply

We use a variety of raw materials and chemicals in our manufacturing and blending processes and believe the sources of these are adequate for our current operations. The most important raw materials for Afton are base oil, polyisobutylene, maleic anhydride, olefin copolymers, antioxidants, alcohols, and methacrylates. The chemical industry, in general, is experiencing some tightness in the supply of certain commodity materials. We continue to monitor the situation and will adjust our procurement strategies accordingly. Generally, we purchase major raw materials and chemicals under long-term contracts with multi-source suppliers. Certain products are obtained through single-source suppliers.

We have the following long-term supply agreements for raw materials and finished products:

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During 2003, DSM Copolymer, Inc., our supplier of olefin copolymer viscosity index improvers, notified us of their intent to terminate a long-term supply agreement in mid-2005. The contract was initially scheduled to terminate in 2012. We have developed other supply alternatives and expect no disruption of supply. These new alternatives may be more expensive than the previous agreement.

Prior to the sale of our antioxidant business to Albemarle in January 2003, Albemarle supplied certain antioxidant finished products to us under a supply agreement that would have expired in 2014. They continue to supply antioxidants for our internal needs.

Research, Development, and Testing

Research, development, and testing (R&D) provides the basis for our global petroleum additives technology. We develop products through a combination of chemical synthesis, formulation, engineering design and performance testing. In addition to products, R&D also provides our customers with technical support to assure total customer satisfaction.

We are committed to providing the most advanced products, comprehensive testing programs and superior technical support to our customers worldwide. R&D expenditures, which totaled $65 million in 2004, $58 million in 2003, and $51 million in 2003, are expected to grow modestly in 2005 in support of our core technology areas. The efficiency of our R&D spending continues to improve through expansion of internal testing capabilities and project management processes.

Afton continues to develop new technology and products to meet the changing requirements of OEMs and to keep our customers well positioned for the future. In 2004, we continued advancements in automatic transmission fluid technologies with new fill-for-life transmission fluids to meet specific OEM specifications. In addition, we have built strong fundamental research and modeling capabilities on additive/fluid interactions with critical transmission components. New gear technologies and formulations were developed that combine increased fuel efficiency and the ability to significantly lower break-in temperatures of new axles in the field. New engine oil technology was developed that improves performance in existing engine oil categories and sets the stage for development of efficient new formulations for the next-generation passenger car and heavy-duty diesel engine oil categories. New products were launched in both gasoline and diesel performance additive areas, both of which increase deposit control performance in fuel and combustion management systems.

Intellectual Property

Our intellectual property, including our patents, licenses, and trademarks, is an important component of our business. We actively protect our inventions, new technologies, and product developments by filing patent applications or maintaining trade secrets. We currently own approximately 1,000 issued United States and foreign patents, with a significant number of additional patents pending. The use of technology covered by several of these patents and trade secrets is licensed to others through an active royalty-generating licensing program. In addition, we have acquired the rights under patents and inventions of others through licenses. We take care to respect the intellectual property rights of others and we believe our products do not infringe upon those rights. We vigorously participate in patent opposition proceedings around the world, where necessary, to secure a technology base free of infringement. We believe our patent position is strong, aggressively managed, and sufficient for the conduct of our business.

We also have several hundred trademark registrations throughout the world for our marks, including Ethyl^®, MMT^®, HiTEC^®, and GREENBURN^®, as well as several pending trademark applications, including NewMarket^™ and Afton Chemical^™.

Commitment to Environmental and Safety Excellence

We are committed to continuous improvement and vigilant management of the health and safety of our employees, neighbors and customers, as well as the stewardship of the environment. One way we demonstrate this commitment is by supporting the principles of the American Chemistry Council (ACC) Responsible Care^®

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program. Safety in all actions is a way of life at NewMarket—enhancing operations, the way we work, and the relationships we maintain with our customers and our communities. Our executive management meetings begin with a review of our environmental and safety performance. We challenge ourselves to be a leader in the chemical industry with our performance. We have established goals that are continuous in nature and are just a portion of the metrics we use to manage the worldwide environmental and safety aspects of our business. Our many goals include having:

Our objective is to establish a culture where each of our employees understands that good environmental and safety performance is good business and understands that environmental compliance and safety is their personal responsibility.

On the goal of reportable injuries, our worldwide recordable rate (which is the number of injuries per 200,000 hours worked) in 2004 was 0.83, which is somewhat better than our 2003 rate and is our second best year of the last eleven years. We have demonstrated continuous improvement with a downward aggregate trend over the last five years. NewMarket’s safety performance represents a focused effort by all of our employees. We are extremely proud of our accomplishments in the safety area, especially when compared to safety records in other industries. We are committed to the safety of our employees and our neighbors and believe our record demonstrates that commitment.

As members of the ACC, Afton and Ethyl have provided data on the eight metrics used to track environmental, safety, and product stewardship performance of the member companies. These can be viewed at www.RESPONSIBLECARE-US.com. The information on this website is not, and shall not be deemed to be, a part of this Annual Report on Form 10-K or incorporated in any other filings we make with the SEC.

Environmental

We operate under policies that we believe comply with federal, state, local, and foreign requirements regarding the handling, manufacture, and use of materials. One or more regulatory agencies may classify some of these materials as hazardous or toxic. We also believe that we comply with laws, regulations, statutes, and ordinances protecting the environment, including those related to the discharge of materials. We expect to continue to comply in every material respect.

We regularly review the status of significant existing or potential environmental issues. We accrue and expense our proportionate share of environmental remediation and monitoring costs in accordance with Statement of Financial Accounting Standards (SFAS) No. 5 and Financial Accounting Standards Board Interpretation No. 14, as clarified by the American Institute of Certified Public Accountants Statement of Position 96-1. As necessary, we adjust our accruals based on current information.

Total gross liabilities accrued at year-end for environmental remediation were $22 million for 2004 and $23 million for 2003. In addition to the accruals for environmental remediation, we also had accruals for dismantling and decommissioning costs of $7 million at December 31, 2004 and $10 million at December 31, 2003. The decrease in the accruals for both remediation, as well as dismantling and decommissioning costs from year-end 2003 to 2004 is primarily the result of activity at TEL sites in Canada and Houston, as well as the benefit of technology improvements at a Superfund site. As new technology becomes available, it may be possible to further reduce accrued amounts. While we believe that we are fully accrued for known environmental issues, it is possible that unexpected future costs could have a significant financial impact on our financial position and results of operations.

We recorded expected insurance reimbursement assets related to the environmental remediation, dismantling, and decommissioning accruals of $3 million at December 31, 2003. There were no expected

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insurance reimbursements at December 31, 2004. During the third quarter 2004, we reached a $16 million environmental insurance settlement resulting in the collection of expected insurance reimbursements. The gain on this settlement amounted to $13 million and is reflected in the Consolidated Statements of Income under the caption “Special item income.” We received $8 million during 2004. We received $4 million in February 2005 and will receive the remaining $4 million in the first quarter 2006.

We spent approximately $14 million in 2004 and $13 million in both 2003 and 2002 for environmental operating and clean-up costs, excluding depreciation of previously capitalized expenditures. Of these amounts, the ongoing costs of operations were $13 million in 2004 and $11 million in 2003 and 2002. The balance represents clean-up, or remediation and monitoring costs. These environmental operating and clean-up expenses are included in cost of goods sold. In 2005, we expect environmental operating and remediation costs to be about the same as 2004.

For capital expenditures on pollution prevention and safety projects, we spent $4 million in 2004, $3 million in 2003, and $5 million in 2002. Over each of the next two years, we expect capital expenditures for these types of projects to be approximately $7 million to $8 million due to modifications needed to meet the Miscellaneous Organic National Emissions Standards for Hazardous Air Pollutants regulation.

Our estimate of the effects of complying with governmental pollution prevention and safety regulations is subject to:

We are subject to the federal Superfund law and similar state laws under which we may be designated as a potentially responsible party (PRP). As a PRP, we may be liable for a share of the costs associated with cleaning up hazardous waste sites such as a landfill to which we may have sent waste.

In de minimis PRP matters and in some minor PRP matters, we generally negotiate a consent decree to pay an apportioned settlement. This relieves us of any further liability as a PRP, except for remote contingencies. Settlement costs for a de minimis participant are typically less than $50,000. Settlement costs for a minor participant are typically less than $300,000.

We are also a PRP at some Superfund sites where our liability may be in excess of de minimis or minor PRP levels. Most Superfund sites where we are a PRP represent environmental issues that are quite mature. The sites have been investigated, and in many cases, the remediation methodology, as well as the proportionate shares of each PRP have been established. Other sites are not as mature, which makes it more difficult to reasonably estimate our share of the future clean-up or remediation costs. We have previously accrued the estimated expense of the remediation and monitoring of these sites. Generally, remediation and monitoring will go on for an extended period.

During 2000, the Environmental Protection Agency (EPA) named us as a PRP under Superfund law for the clean-up of soil and groundwater contamination at the Sauget Area 2 Site in Sauget, Illinois. Without admitting any fact, responsibility, fault, or liability in connection with this site, we are participating with other PRPs in site investigations and feasibility studies.

The Sauget Area 2 Site PRPs submitted a Remedial Investigation and Feasibility Studies (RI/FS) to the EPA in early 2004. We have accrued our estimated proportional share of the expenses for the RI/FS. We also accrued our best estimate of our proportional share of the remediation liability proposed in that submission. The EPA has

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since not accepted the RI/FS. In addition, at a recent meeting with the EPA in December 2004, the scope and direction of the RI/FS were further discussed leading to our conclusion that the RI/FS process will probably take one to two years to complete. The RI/FS work is ongoing, and we believe it is not at a stage where any further conclusion can be drawn as to the remediation liability we may incur. We do not believe there is any additional information available as a basis for revision of the liability that we have established. The amount accrued for this site is not material.

During late 2003, one of the other PRPs for the Sauget Area 2 Site declared bankruptcy. The performance of this PRP and its related entities is uncertain. We have not yet determined what, if any, impact this may have on us.

We also own several other environmental sites where we are in the process of remediation and monitoring. At one of our major sites in the United States, we have substantially completed remediation and will be monitoring the site for an extended period. In addition, during 2004 we began dismantling and remediation at our Canadian TEL plant.

Geographic Areas

We have operations in the United States, Europe, Asia, Latin America, Australia, and Canada. The economies are stable in most of the countries where we operate. In countries with more political or economic uncertainty, we generally minimize our risk of loss by utilizing U.S. dollar-denominated transactions, letters of credit, and prepaid transactions. We also participate in selective foreign currency forward contracts at certain times. Our foreign customers mainly consist of financially viable government organizations and large companies.

The table below reports net sales and long-lived assets by geographic area. Except for the United States and Canada, no country exceeded 10% of net sales during any year. Canada exceeded 10% of net sales only in 2003 and 2002. The United States was the only country that exceeded 10% of long-lived assets in any year. We assign revenues to geographic areas based on the location to which the product was shipped. The change in net sales during the three-year period is discussed more fully in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operation.”

Geographic Areas

Other Matters

Holding Company Structure—On August 8, 2003, Ethyl filed a request with the Internal Revenue Service (IRS) seeking rulings as to certain federal income tax consequences of the creation of a holding company

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structure by Ethyl and a related internal restructuring. Ethyl received a private letter ruling on February 5, 2004, from the IRS stating that the holding company transaction and the internal restructuring generally will qualify as tax-free for U.S. federal income tax purposes. On February 26, 2004, Ethyl’s Board of Directors determined that the creation of a holding company structure was in the best interests of Ethyl and its shareholders. The Board then unanimously voted to adopt an Agreement and Plan of Merger by and among Ethyl, Ethyl Merger Sub, Inc., and NewMarket (merger agreement) to create the holding company structure and to recommend that Ethyl shareholders approve the transaction.

On May 27, 2004, at Ethyl’s annual meeting, Ethyl shareholders approved the transition to a holding company structure. Under the terms of the merger agreement, Ethyl Merger Sub was merged with and into Ethyl effective on June 18, 2004. Upon the closing of the transaction, NewMarket became the new parent holding company for Ethyl and its subsidiaries and each share of Ethyl common stock automatically converted into one share of NewMarket common stock. The NewMarket common stock began trading on the New York Stock Exchange on June 21, 2004, under the symbol “NEU.”

Following the establishment of the holding company structure, we completed the internal restructuring of our subsidiaries as a result of which, NewMarket became the parent company of two operating companies, each managing its own assets and liabilities. Those companies are Afton, which focuses on petroleum additive products; and Ethyl, representing certain manufacturing operations and the TEL business. NewMarket also became the parent company of NewMarket Services Corporation, which provides various administrative services to NewMarket, Afton, and Ethyl.

MMT Developments—In July 2003, Afton completed its review of the MMT fleet study report released by the Alliance of Automobile Manufacturers (AAM) in July 2002. With the assistance of ENVIRON International Corporation, we concluded that the AAM study reaffirms that MMT is an acceptable fuel constituent that does not harm vehicle emission control systems. Afton reported these conclusions in a paper presented at the Society of Automotive Engineers (SAE) meeting in October 2003 in Pittsburgh, Pennsylvania. Nonetheless, the automotive industry continues to persist in demanding that oil companies discontinue the use of MMT and that governments disallow the use of the product. The automotive industry has more recently alleged that MMT may cause catalyst plugging in vehicles equipped with the most advanced emission control systems. However, no credible evidence to support this allegation has been provided by the automobile industry to us. As part of its ongoing research activities, Afton continues to monitor and test MMT compatibility with modern emission control systems and catalysts. In December 2003, the government of Canada released its “Proposed Framework for an Independent Third-Party Review of New Information on the Effects of MMT on Vehicle Emissions.” In its proposal, the Canadian government provided no timetable for the commencement or completion of the review. We believe that this independent third-party review of MMT, when properly designed, conducted and interpreted, will reaffirm that MMT is compatible with modern emission control devices.

Substantially all of our customers in Canada have suspended the use of the gasoline additive MMT, pending the results of the government of Canada-sponsored independent third-party review. To date, the government of Canada has not initiated the review. While this suspension has had a negative impact on our Canadian business, we have been able to expand the use of the product in other parts of the world, which has substantially offset the impact from the loss of the Canadian business. MMT is one of the most extensively tested fuel additives in history. While we are disappointed with the decision of our customers in Canada, we believe that MMT is an environmentally beneficial product that has proven its effectiveness in real-world use.

Availability of Reports Filed with the Securities and Exchange Commission and Corporate Governance Documents

Our Internet website address is www.newmarket.com. We make available, free of charge through our website, our annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act

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of 1934, as amended, as soon as reasonably practicable after such documents are electronically filed with, or furnished to, the Securities and Exchange Commission (SEC.) In addition, our Corporate Governance Guidelines, Code of Conduct, and the charters of our Audit; Bonus, Salary and Stock Option; and Nominating and Corporate Governance Committees, are available on our website and are available in print, without charge, to any shareholder upon request by contacting our Corporate Secretary at NewMarket Corporation, 330 South Fourth Street, Richmond, Virginia 23219. The information on our website is not, and shall not be deemed to be, a part of this report or incorporated into any other filings we make with the SEC.

ITEM 2.    PROPERTIES

Our principal operating properties are shown below. Unless indicated, we own the research, development, and testing facilities and manufacturing properties, which primarily support the petroleum additives business segment.

We own our corporate headquarters located in Richmond, Virginia, and generally lease our regional and sales offices located in a number of areas worldwide.

Production Capacity

We believe our plants and supply agreements are sufficient to meet expected sales levels. Operating rates of the plants vary with product mix and normal sales swings. We believe that our facilities are well maintained and in good operating condition.

During 2003, we ceased manufacturing at our facility in Rio de Janeiro, Brazil. This facility is currently operating as a terminal location providing storage, blending, and distribution of petroleum additives.

ITEM 3.     LEGAL PROCEEDINGS

We are involved in legal proceedings that are incidental to our business and include administrative or judicial actions seeking remediation under environmental laws, such as Superfund.

These proceedings include certain product liability cases. The only product liability cases of potential consequence in which we are involved are TEL-related. In one case, Ethyl was served as a defendant in a case filed in the Circuit Court for Baltimore City, Maryland, in September 1999. Smith, et al. v. Lead Industries Association, Inc., et al., alleged personal injuries for seven children from lead exposure arising from lead paint and dust from tailpipe emissions due to leaded gasoline. The court dismissed Ethyl and some other defendants from the case in February 2002 and granted summary judgment to other defendants in November 2002. The plaintiffs have appealed both decisions, but did not appeal the dismissal of Ethyl as a defendant. The Court of Special Appeals of Maryland reversed the trial court’s decision in part, but noted in its decision that the claims

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related to tailpipe emissions (the only claims concerning Ethyl) had not been appealed. The Court of Appeals of Maryland granted the petition for a writ of certiorari and heard arguments during the January 2005 session of the Court, but no decision has been rendered. If such claims are further pursued against Ethyl, we believe Ethyl has strong defenses and will vigorously defend any such claims.

Like many other companies, we are also a defendant in personal injury lawsuits involving exposure to asbestos. These cases involve exposure to asbestos in premises owned or operated, or formerly owned or operated, by subsidiaries of NewMarket. We have never manufactured, sold or distributed products that contain asbestos. Nearly all of these cases are pending in Texas, Louisiana, or Illinois and involve multiple defendants. We maintain an accrual for these proceedings. In addition, in 2002, we recorded a receivable from Albemarle in the amount of $4 million for premises asbestos liability obligations. We invoiced Albemarle for the $4 million payment. Albemarle disputes this payment and its obligations for premises asbestos liabilities. We, however, believe that Albemarle is responsible for the payments, as well as certain current and future liability claims, pursuant to an indemnification agreement between the companies dated as of February 28, 1994. We expect to fully recover the amounts in the next twelve months.

We accrue for our premises asbestos liability related to currently asserted claims based on the following assumptions and factors:

Based on the above assumptions, we have provided an undiscounted liability related to premises asbestos claims of $10 million at year-end 2004 and $8 million at year-end 2003. The liabilities related to asbestos claims are included in accrued expenses (current portion) and other noncurrent liabilities on the balance sheet. Certain of these costs are recovered through our insurance coverage. The receivable for insurance recoveries related to premises asbestos liabilities was $5 million at December 31, 2004 and $4 million at December 31, 2003. The insurance receivables are included in trade and other accounts receivable for the current portion. The noncurrent portion is included in other assets.

NewMarket is pursuing recovery of sums we allege are owed to us under certain insurance policies from Travelers Indemnity Company (Travelers) for premises asbestos liability claims. Travelers has been our primary insurer for many years. We filed a lawsuit against Travelers in the Southern District of Texas in November 2004.

While it is not possible to predict or determine the outcome of any legal proceeding, it is our opinion that we have adequate accruals, cash, and insurance coverage such that the outcome of these legal proceedings, individually or in the aggregate, would not result in a material adverse effect on us.

ITEM 4.    SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

There were no issues submitted to a vote of security holders during the fourth quarter of 2004.

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PART II

On May 27, 2004, at the annual meeting of shareholders of Ethyl Corporation, Ethyl shareholders approved the transition to a holding company structure. Upon the closing of the transaction, NewMarket became the new parent holding company for Ethyl and its subsidiaries and each share of Ethyl common stock, $1.00 par value per share, automatically converted into one share of NewMarket common stock, without par value. The NewMarket common stock began trading on the New York Stock Exchange (NYSE) on June 21, 2004, under the symbol “NEU”.

Effective July 1, 2002, we completed a 1-for-5 reverse stock split of our common stock and the number of authorized shares of common stock was reduced from 400 million to 80 million. We made cash payments for fractional shares to holders who had a number shares not divisible by five. The cash payment was based on the average of the closing price for the common stock on each of the five trading days prior to the effective date and amounted to $4.25 per share or a total payment of less than $10 thousand.

There were 16,980,759 shares outstanding as of December 31, 2004. We had 8,352 shareholders of record at December 31, 2004.

The following table shows the high and low prices of our common stock on the NYSE for each of the last eight quarters.

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NewMarket Corporation & Subsidiaries

Five Year Summary

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Notes to the Five Year Summary

The special items in 2000 include a benefit of $81 million related to settlements of certain pension contracts resulting in the recognition of noncash gains and a $4 million benefit related to the demutualization of MetLife, Inc. These items were partially offset by an $8 million charge for the write-off of plant assets and a $1.4 million special retirement charge.

Other income (expense), net in 2002 includes a loss on impairment of nonoperating assets of $4 million, as well as expenses related to debt refinancing activities of $1 million. In addition, 2002 reflects $1 million interest income from a settlement with the IRS, as well as $2.4 million for interest income from a lawsuit settlement.

The 2001 amount includes $3 million of expenses related to the refinancing of our debt. Also included is a net charge related to nonoperating assets of $3 million resulting from impairment losses of $4 million, which was partially offset by a $1 million gain on the sale of a nonoperating asset. Other income (expense), net for 2000 includes a $3 million charge for our percentage share of losses in equity investments offset by a $2 million gain on the sale of a nonoperating asset.

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Forward-Looking Statements

The following discussion contains forward-looking statements about future events and expectations within the meaning of the Private Securities Litigation Reform Act of 1995. We have based these forward-looking statements on our current expectations and projections about future results. When we use words in this document, such as “anticipates,” “intends,” “plans,” “believes,” “estimates,” “expects,” and similar expressions, we do so to identify forward-looking statements. Examples of forward-looking statements include statements we make regarding future prospects of growth in the petroleum additives market, the level of future declines in the market for TEL, our ability to maintain or increase our market share, and our future capital expenditure levels.

We believe our forward-looking statements are based on reasonable expectations and assumptions, within the bounds of what we know about our business and operations. However, we offer no assurance that actual results will not differ materially from our expectations due to uncertainties and factors that are difficult to predict and beyond our control.

These factors include, but are not limited to, timing of sales orders, gain or loss of significant customers, competition from other manufacturers, resolution of environmental liabilities, changes in the demand for our products, significant changes in new product introduction, increases in product cost, the impact of fluctuations in foreign exchange rates on reported results of operations, changes in various markets, geopolitical risks in certain of the countries in which we conduct business, and the impact of consolidation of the petroleum additives industry. In addition, certain risk factors are also discussed in Item 7A, “Quantitative and Qualitative Disclosures About Market Risk.”

You should keep in mind that any forward-looking statement made by us in this discussion or elsewhere speaks only as of the date on which we make it. New risks and uncertainties come up from time to time, and it is impossible for us to predict these events or how they may affect us. We have no duty to, and do not intend to, update or revise the forward-looking statements in this discussion after the date hereof, except as may be required by law. In light of these risks and uncertainties, you should keep in mind that any forward-looking statement made in this discussion, or elsewhere, might not occur.

OVERVIEW

The 2004 year was a year of many achievements and challenges. The achievements include the formation of the new holding company, NewMarket Corporation, which began trading on the New York Stock Exchange on June 21, 2004, under the trading symbol “NEU.” We also restructured our term and bank loans during the year with conditions we believe are more consistent with our improved financial condition. Standard & Poors Rating Services raised our credit rating during the fourth quarter 2004, which we believe reflects the progress we have made. Afton Chemical Corporation achieved significant improvements and growth in the petroleum additives business, despite the challenge to recover increasing raw material costs and the subsequent reduction in margins and profits. Ethyl Corporation has successfully managed the contribution from the declining TEL product line, achieving good results with earnings surpassing the prior year for the second year in a row.

RESULTS OF OPERATIONS

The results of continuing operations exclude the operations of our phenolic antioxidant business, which was sold in January 2003. The earnings results of this business have been removed from net sales and operating profit for prior periods covered in this review. These results are included in the Consolidated Statements of Income under “Income from operations of discontinued business.” There was no effect on net income as a result of these reclassifications.

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Net Sales

We continued to improve and grow our business in 2004, realizing increased net sales in essentially all areas of the petroleum additives segment. We believe that this improvement and growth results from our strong customer relationships and our commitment to supply them with top quality products and services. Our significant investment in customer-focused research and development is part of our ongoing effort to improve our products and services to meet our customers’ needs.

Total net sales were higher in 2004 than in either of the previous two years, representing an increase of 18% when comparing 2004 with 2003 and 15% when comparing 2003 with 2002.

In 2004, 2003, and 2002, net sales to two customers of our petroleum additives segment exceeded 10% of total net sales. Sales to BP amounted to $99 million (11% of total net sales) in 2004, $81 million (11% of total net sales) in 2003, and $69 million (11% of total net sales) in 2002. Sales to Shell amounted to $119 million (13% of total net sales) in 2004, $121 million (16% of total net sales) in 2003, and $87 million (13% of total net sales) in 2002. These net sales represent a wide-range of products sold to these two customers in multiple regions of the world.

No other single customer accounted for 10% or more of our total net sales in 2004, 2003, or 2002.

The following table shows our net sales by segment for each of the last three years.

Net Sales By Segment

Petroleum Additives—Our petroleum additives sales improved over both 2003 and 2002. When comparing 2004 to 2003, petroleum additives net sales were up $138 million or 18%, reflecting improvements across all product lines. Shipments, driven by the engine oil additives product line, were higher across all product lines resulting in an improvement of about 18% in total shipments. Strengthening of foreign currency, primarily the Euro, also had a beneficial impact on 2004 net sales. When comparing 2003 and 2002, petroleum additives net sales increased $99 million or 15% above 2002 net sales, reflecting improved results across all product lines. Total volumes shipped in 2003 were about 10% higher across all product lines than in 2002.

The components of the petroleum additives increase in net sales of $138 million when comparing 2004 to 2003 and $99 million when comparing 2003 and 2002 are shown below in millions.

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Tetraethyl Lead—Most of the TEL marketing activity is through the agreements with Octel, under which we do not record the sales transactions. Therefore, the TEL net sales shown in the table above are those made by Ethyl in areas not covered by the marketing agreements, as well as sales made to Octel under the terms of the agreements. The sales made in areas not covered by the marketing agreements are very minor compared to the TEL sales made through the marketing agreements. See Note 4 of the Notes to Consolidated Financial Statements.

TEL net sales were about even when comparing 2004 to 2003. Sales increased $1 million when comparing 2003 to 2002. Sales made to Octel in 2003 were $2.5 million higher than 2002 sales to Octel. There were no sales to Octel during 2004 or 2002.

Segment Operating Profit

NewMarket evaluates the performance of Afton’s petroleum additives business and Ethyl’s TEL business based on segment operating profit. Corporate departments and other expenses are billed to Afton and Ethyl based on the services provided under the holding company structure. Depreciation on segment property, plant, and equipment, and amortization of segment intangible assets and the prepayments for services are included in the operating profit of each segment.

The table below reports operating profit by segment for the last three years. In the table below, we present operating profit for each of the petroleum additives and TEL segments excluding nonrecurring items. Operating profit excluding nonrecurring items is a financial measure that is not required by, or calculated in accordance with, generally accepted accounting principles in the United States (GAAP.) These non-GAAP financial measures are presented with the most directly comparable GAAP financial measures and are reconciled to such GAAP financial measures. Our management believes this information provides information about our operations and, in doing so, provides transparency to investors and enhances period-to-period comparability of performance. Our management further believes that this information enables the reader to have a clear understanding of the results of operations included in the GAAP financial statements.

Certain prior periods have been reclassified to conform to the current presentation. The reclassifications consist of an allocation of certain costs in alignment with the recent transition to a holding company structure.

The “Other” classification in the table below primarily represents certain contract manufacturing operations.

Segment Operating Profit

Petroleum Additives—Petroleum additives 2004 operating profit, including a nonrecurring gain of $1 million from an environmental insurance settlement, was $44 million as compared to $49 million for 2003. The 2004 results include a small improvement in the engine oil additives product line and lower results in the other areas. While both net sales and shipments improved 18%, the rising costs of raw materials, as well as higher selling, general, and administrative (SG&A) expenses and research, development, and testing (R&D) expenses

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resulted in the reduction in operating profit compared to 2003. Although the impact of higher selling prices favorably impacted the 2004 operating profit, the price increases we have achieved do not cover the increase in raw material costs. The 2004 results include a favorable foreign currency impact, primarily from the Euro.

The 2003 petroleum additives operating profit of $49 million compares to $42 million for 2002. Excluding nonrecurring items in 2002, which are discussed below, operating profit was $43 million. The improvement was the result of many factors. Volumes shipped increased 10% across all product lines. A favorable foreign exchange impact, primarily from the Euro, also contributed to the higher profit. Partially offsetting these factors were higher SG&A and R&D expenses. In addition, raw material costs increased due to higher shipments, as well as the rising cost of raw materials.

Total R&D expenses were $65 million in 2004, $58 million in 2003, and $51 million in 2002. The increase when comparing 2004 and 2003 is across all product lines, but mainly in the engine oil additives and specialty additives product lines. This increase is to support new product specifications, our growth, and our continuing commitment to enhance the value of our product for our customers. The increase in R&D expenses when comparing 2003 and 2002 reflected higher personnel costs supporting the development and testing of new products, primarily in the specialty additives product line. There was also a small unfavorable foreign currency impact across all years. R&D related to new products and processes was $33 million in 2004, $28 million in 2003, and $30 million in 2002. All of our R&D expenses were related to the petroleum additives segment.

SG&A for this segment in 2004 was approximately $4 million higher than 2003. SG&A for 2003 was approximately $11 million higher than 2002. The increases in 2004 and 2003 included the impact of an unfavorable foreign currency effect. As a percentage of net sales, SG&A combined with R&D expenses was 15.6% in 2004 and 16.9% in both 2003 and 2002. The 2004 percentage reflects the 18% increase in net sales from 2003 levels as compared to only 9% increase in SG&A and R&D. The essentially unchanged percentage between 2003 and 2002 reflects similar increases in net sales, as well as SG&A and R&D between the two years.

In addition to the 2004 nonrecurring gain discussed above, there was a nonrecurring gain of $100 thousand for 2003 related to the implementation of Statement of Financial Accounting Standards (SFAS) No. 143, “Accounting for Asset Retirement Obligations.” The nonrecurring item for 2002 was for a $1.5 million impairment of goodwill, which was partially offset by a $300 thousand benefit related to a change in estimate of the restructuring accrual for the engine oil additives rationalization. The goodwill write-off was done in accordance with SFAS No. 142, “Goodwill and Other Intangibles.”

During 2003, we were notified by DSM Copolymer, Inc., our supplier of olefin copolymer viscosity index improvers, of its intent to terminate its supply contract with us in mid-2005. The contract was initially scheduled to terminate in 2012. We have adjusted amortization of the intangible asset associated with this contract to coincide with the 2005 termination date. We have developed other supply alternatives and expect no disruption of supply. These new alternatives may be more expensive than the previous agreement.

Tetraethyl Lead—Results of our TEL segment include the operating profit contribution from our marketing agreements, as well as certain TEL operations not included in the marketing agreements.

The operating profit contribution from our marketing agreements was $33 million in 2004, $30 million in 2003, and $26 million in 2002. As expected, volumes shipped declined when comparing both 2004 to 2003 and 2003 to 2002. Volumes were 15% lower for 2004 compared to 2003 and 10% lower when comparing 2003 and 2002. This was more than offset in each year by improved pricing and lower costs. Included in the lower costs was a reduction of $2 million in amortization of certain TEL alliance costs when comparing 2004 to 2003, reflecting the declining balance method of amortization. See Note 4 of the Notes to Consolidated Financial Statements. Amortization costs in 2003 were $400 thousand lower than 2002. The TEL market will continue to decline as customers discontinue use of the product.

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The loss from other TEL operations that were not a part of the marketing agreements was approximately flat when comparing 2004 to 2003 and $4 million lower when comparing 2003 to 2002. The combined environmental and premises asbestos charges during 2004 were approximately even with 2003. The year 2002 included charges related to environmental remediation and premises asbestos liability claims that were $4 million higher than 2003. These charges in 2002 were partially offset by approximately $2 million resulting from the benefit of a legal settlement for the recovery of operating costs. In addition, 2003 profits benefited from sales to Octel, which were approximately $2.5 million higher than 2002. Neither 2004 nor 2002 included earnings from the sale of lead inventory to Octel.

The year 2004 includes a $12 million nonrecurring gain from an environmental insurance settlement. The nonrecurring income of $2 million in 2003 resulted from the implementation of SFAS No. 143. The nonrecurring charge of $2 million in 2002 was for the impairment of goodwill upon the adoption of SFAS No. 142.

While the market for this product is continuing to decline, it continues to supply Ethyl with strong cash flows.

The following discussion references certain captions on the Consolidated Statements of Income.

Special Item Income

Special item income was $13 million in 2004 and represents the gain on an environmental insurance settlement. The terms of the settlement provide for a total payment of $16 million. In addition to the $8 million received during 2004, we received $4 million in February 2005 and will receive the remaining $4 million in the first quarter 2006.

Interest and Financing Expenses

Interest and financing expenses were $18 million in 2004, $21 million in 2003, and $26 million in 2002. Lower average debt during 2004 compared to 2003 resulted in a $3 million reduction in interest and financing expenses, while lower amortization and fees contributed a benefit of $2 million. Partially offsetting these was a higher average interest rate resulting in an increase in expense of $2 million. Comparing 2003 to 2002, lower average debt outstanding resulted in a reduction of $5 million, while higher average interest rates resulted in an increase of $2 million. Fees and amortization of financing costs in 2003 were $2 million lower than 2002. The higher average interest rates for 2004 and 2003 result, in part, from $150 million of our total debt being at a fixed rate of 8.875% since April 2003.

On June 18, 2004, prior to the completion of the holding company formation, Ethyl entered into an Amended and Restated Credit Agreement, which consists of a $100 million revolving credit facility. This agreement amended and restated the credit agreement that Ethyl entered into on April 30, 2003. The premium to LIBOR is lower in the Amended and Restated Credit Agreement. In addition, effective June 18, 2004 and in connection with the holding company formation, NewMarket assumed Ethyl’s rights, liabilities and obligations under Ethyl’s 8.875% senior notes due 2010. The senior notes otherwise remain unchanged. The Amended and Restated Credit Agreement and our debt structure are discussed more fully in the “Financial Position and Liquidity” section below.

Other Income (Expense), Net

Other income (expense), net for 2004 was $300 thousand income and was comprised of a number of small items.

Other income (expense), net for 2003 was $900 thousand income and included a $1 million refund from an insurance company related to employee benefit policies.

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Other income (expense), net for 2002 was $500 thousand expense and included charges of $4 million on the impairment of nonoperating assets and $1 million related to debt refinancing activities. These were partially offset by $2 million in interest income from a lawsuit settlement and $1 million interest income from a settlement with the Internal Revenue Service.

Income Tax Expense

Income tax expense on continuing operations was $12 million in 2004, $9 million in 2003, and $4 million in 2002. The effective tax rate was 25.9% in 2004, 29.7% in 2003, and 28.3% in 2002. The effective tax rate in each year reflects certain foreign and other tax benefits. See Note 23 of the Notes to Consolidated Financial Statements.

The increase in income from continuing operations before income taxes from 2003 to 2004 resulted in an increase of $5 million in income taxes in 2004. This was partially offset by a $2 million decrease resulting from the lower effective tax rate. The lower effective tax rate in 2004 compared to last year includes the benefit of reaching agreement with the Internal Revenue Service on settlement of certain open tax years, as well as lower state income taxes.

The increase in our income from continuing operations before income taxes from 2002 to 2003 resulted in the $5 million increase in income taxes in 2003. The effective tax rate was almost unchanged between 2003 and 2002.

Our deferred taxes are in a net asset position and based on forecast operating plans, we believe that we will recover the full benefit of our deferred tax assets. See Note 23 of the Notes to Consolidated Financial Statements for details on income taxes.

Income from Operations of Discontinued Business

Following an extensive assessment of our phenolic antioxidant business, we concluded this business was not part of our future core business or growth goals. Accordingly, after approval by the Board of Directors in December 2002, on January 21, 2003, we completed the sale of our phenolic antioxidant business to Albemarle. As part of the transaction, we sold accounts receivable and inventory, as well as fixed assets at our Orangeburg, South Carolina facility.

The income from operations of discontinued business reflected in our Consolidated Statements of Income is on an after-tax basis. The 2003 amount is the after-tax gain on the disposal of the business of $14.8 million ($23.2 million before tax). Prior year amounts represent the after-tax earnings of the business. The net sales of the discontinued business were $19 million for 2002.

Cumulative Effect of Accounting Changes

As discussed above in the “Segment Operating Profit” section, during first quarter 2003, we recognized a gain of $2.5 million ($1.6 million after tax) on the implementation of SFAS No. 143.

We wrote-off goodwill of $3.1 million ($2.5 million after tax) in first quarter 2002 in accordance with SFAS No.142. Under the undiscounted cash flow model that we used prior to the adoption of SFAS No. 142, the goodwill was not impaired and, therefore, had not been previously written-off.

Net Income

Net income was $33 million ($1.95 per share) in 2004, $37 million ($2.21 per share) in 2003, and $10 million ($0.59 per share) in 2002. Due to the significant impact on earnings of nonrecurring items and

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discontinued operations, we have included below a summary of earnings and earnings per share, in millions (except for per share amounts). Certain measures presented in the table below are not recognized as financial measures calculated in accordance with GAAP. These non-GAAP financial measures are presented with the most directly comparable GAAP financial measures and are reconciled to such GAAP financial measures. Our management believes this information provides information about our operations and, in doing so, provides transparency to investors and enhances period-to-period comparability of performance. Our management further believes that this information enables the reader to have a clear understanding of the results of operations included in the GAAP financial statements.

Included in our results in the selling, general, and administrative expense line of our Consolidated Statements of Income is an increase in corporate general and administrative expenses of $3 million in 2004 over 2003. The major components of this increase are legal expenses associated with the establishment of the holding company and costs associated with compliance with the Sarbanes-Oxley legislation. The same costs in 2003 were also $3 million higher than 2002, primarily reflecting increased insurance, legal, and personnel expenses.

The cost of our pensions is also a factor in comparing our earnings results from year to year. Pension expense on a pre-tax basis was $1 million higher in 2004 than in 2003 due primarily to changes in rate assumptions. Pre-tax pension expense was $3 million higher in 2003 than 2002. The increase when comparing 2003 to 2002 levels was caused substantially by lower asset values in our current plans due to market volatility, changes in rate assumptions, and an unfavorable foreign currency impact.

CASH FLOWS DISCUSSION

We generated cash from operating activities of $37 million in 2004, $83 million in 2003, and $81 million in 2002.

In 2004, we used the cash flows from operating activities, as well as $1 million of proceeds from the exercise of stock options and $5 million cash on hand, to fund capital expenditures of $15 million, to make a net

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repayment on bank debt of $24 million, to pay debt issuance costs of $1 million, and to purchase certain property for $3 million. Our book overdrafts increased $1 million. Included in the cash flows from operating activities was $8 million related to an environmental insurance settlement. In addition, cash flows from operating activities included cash outlays of approximately $12 million to fund certain of our pension plans.

The terms of the environmental insurance settlement provide for a total payment of $16 million. In addition to the $8 million received during 2004, we received $4 million in February 2005 and will receive the remaining $4 million in the first quarter 2006.

During 2003, we generated before tax proceeds of $28 million from the sale of the phenolic antioxidant business, as well as proceeds of $13 million from the sale of certain other assets. We used these proceeds, along with the cash generated from operations, to pay $13 million in debt issuance costs, fund capital expenditures of $12 million, and make the final payment of $3 million to Octel for TEL marketing agreements services. In addition, we made a net repayment on debt of $81 million and increased cash and cash equivalents $18 million. Our book overdraft increased $4 million. Our cash from operations included $4.8 million received from a lawsuit settlement. This settlement was related to the recovery of operating costs of $2.4 million, as well as interest income on the settlement of $2.4 million. Cash from operations of about $9 million was used to fund certain of our pension plans.

In 2002, we used cash from operating activities, as well as $2 million cash on hand, to make net repayments of $45 million on bank debt and $1 million on a capital lease and to pay $2 million in debt issuance costs. We also funded capital expenditures of $13 million and made payments for TEL marketing agreements services of $19 million. The book overdrafts decreased $5 million. Our cash from operations included $1 million for deferred rental revenue, $1 million from a settlement with the IRS, and $3 million received from a contract settlement. This contract settlement was related to a dispute associated with a tax issue on the sale of a former subsidiary.

We expect that cash from operations, together with borrowing available under our credit facility, will continue to be sufficient to cover our operating expenses and planned capital expenditures for the foreseeable future.

FINANCIAL POSITION AND LIQUIDITY

We reduced our debt $24 million in 2004, $81 million in 2003, and $46 million in 2002. This comes after having reduced the debt by $107 million in 2001. Our 2004 debt reduction was less than prior years due to the need to increase working capital to support business growth and to build inventory to manage the change in the supply of viscosity index improver resulting from our supplier’s decision to close the plant that currently provides us with this product. Our debt position has improved substantially since 2001, and we are now in a leverage range where debt reduction is no longer a priority. We continue to use free cash flow to reduce debt, while reviewing other opportunities.

Cash

At December 31, 2004, we had cash and cash equivalents of $29 million as compared to $33 million at the end of 2003.

We also had restricted cash of $1.7 million at December 31, 2004 and $1.9 million at December 31, 2003. Of these funds at December 31, 2004, $1.1 million was cash received from Metropolitan Life Insurance Company (Metropolitan) in 2003. These funds amounted to $1.2 million at December 31, 2003. We also had $200 thousand of similar funds at December 31, 2003, which had been received from the demutualization of Metropolitan in 2000. The 2000 funds from Metropolitan were used to reduce the employee portion of retiree health benefits costs and had been used at December 31, 2004. The 2003 funds from Metropolitan are also being used for employee benefit purposes. The remaining $600 thousand of restricted cash at December 31, 2004 represents funds related to the issuance of a European bank guarantee. This guarantee amounted to $500 thousand at December 31, 2003.

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At both December 31, 2004 and December 31, 2003, we had a book overdraft for some of our disbursement cash accounts. A book overdraft represents transactions that have not cleared the bank accounts at the end of the reporting period. We transfer cash on an as-needed basis to fund these items as they clear the bank in subsequent periods.

Debt

Senior Notes—On April 30, 2003, Ethyl sold senior notes in the aggregate principal amount of $150 million that bear interest at a fixed rate of 8.875% and are due in 2010.

The senior notes are our senior unsecured obligations and are jointly and severally guaranteed on an unsecured basis by all of our existing and future wholly-owned domestic restricted subsidiaries and certain of our existing wholly-owned foreign subsidiaries. We incurred financing costs of approximately $5 million related to the senior notes, which are being amortized over seven years.

In connection with the holding company formation, effective June 18, 2004, NewMarket assumed all of Ethyl’s rights, liabilities and obligations under the senior notes.

The senior notes and the subsidiary guarantees rank:

The indenture governing the senior notes contains covenants that, among other things, limit our ability and the ability of our restricted subsidiaries to:

We were in compliance with the covenants in the senior notes as of both December 31, 2004 and December 31, 2003.

Senior Credit Facility—On April 30, 2003, we entered into a long-term debt structure for Ethyl. The debt structure included the senior notes discussed above and a senior credit facility with a bank term loan and a revolving credit facility.

On June 18, 2004, prior to the completion of the holding company formation, Ethyl entered into an Amended and Restated Credit Agreement, which consists of a $100 million revolving credit facility. This agreement amended and restated the credit agreement that Ethyl had entered into on April 30, 2003. Effective with the completion of the holding company formation, NewMarket assumed all of Ethyl’s rights and obligations under the Amended and Restated Credit Agreement pursuant to the First Amendment thereto. We incurred additional financing costs of approximately $1 million, which resulted in total deferred financing costs of approximately $6 million related to the amended and restated credit facility. These costs are being amortized over five years.

The $100 million revolver is for working capital and other general corporate purposes for NewMarket and our subsidiaries and includes a sub-facility for letters of credit. Borrowings bear interest, at our election, at either

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a base rate plus a margin (50 basis points as of December 31, 2004) or LIBOR plus a margin (200 basis points as of December 31, 2004). The revolving credit facility matures on June 18, 2009. Borrowings outstanding at December 31, 2004 under the revolving credit facility were $30 million and bore interest at rates of 4.28% to 5.75%, depending upon the type of borrowing. At December 31, 2004, we had outstanding letters of credit of $24 million, resulting in the unused portion of the revolver amounting to $46 million.

The revolving credit facility is secured by liens on substantially all of our U.S. assets. In addition, the credit facility is guaranteed by our U.S. subsidiaries and certain foreign subsidiaries to the extent that such guarantees would not result in adverse tax consequences.

The credit agreement contains covenants, representations, and events of default that management considers typical of a credit agreement of this nature. We were in compliance with the covenants contained in the senior credit facility as of both December 31, 2004 and December 31, 2003. The financial covenants include:

***

We had combined current and noncurrent long-term debt of $184 million at December 31, 2004, representing a net reduction of $24 million in our total debt since December 31, 2003. The net reduction in debt represents the pay-off of $54 million on the term loan, as well as a decrease of $600 thousand on the capital lease obligations. These reductions were partially offset by the net borrowing of $30 million on the revolving credit facility.

During 2003, we paid down total debt by $81 million. The net reduction in debt includes the full payment of the debt under our previous credit facility of $266 million and full payment of our private borrowing from Bruce C. Gottwald of $18.6 million. These payments were offset by the new borrowing amounting to $150 million on the 8.875% senior notes and $115 million on the term loan. Subsequent to the refinancing of our debt in 2003, we made payments of $61 million on the term loan. Capital lease obligations also decreased $500 thousand. All of our debt is discussed more fully in Note 13 of the Notes to Consolidated Financial Statements.

As a percentage of total capitalization (total long-term debt and shareholders’ equity), our total debt decreased from 51.1% at the end of 2003 to 44.3% at the end of 2004. The decrease reflects the reduction in total debt, as well as the increase in shareholders’ equity due to earnings. Normally, we repay long-term debt with cash from operations, as well as with proceeds from occasional sales of business units, plant sites, or other assets.

Working Capital

At December 31, 2004, we had working capital of $220 million, resulting in a current ratio (which is defined as current assets divided by current liabilities) of 2.57 to 1. Our working capital at year-end 2003 was $184 million resulting in a current ratio of 2.47 to 1.

The increase in working capital and the current ratio primarily reflects an increase in accounts receivable as a result of higher sales and a receivable from the environmental insurance settlement, as well as an increase in inventory. The inventory increase includes the impact of the growth in the petroleum additives business, as well as the result of our viscosity index improver supplier’s plans to close the plant that currently provides us with this product. As part of our transition plan, we built inventory of this product, which will be used during the course of

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2005. In addition, the current portion of long-term debt decreased resulting from the Amended and Restated Credit Agreement and the First Amendment thereto which we entered into during June 2004.

Partially offsetting these was an increase in accounts payable, largely driven by higher inventory requirements, as well as higher prices.

Capital Expenditures

We expect capital expenditures to be in the $20 million range in 2005. We expect capital spending for environmental and safety projects will be approximately $7 million to $8 million over each of the next two years due to modifications needed to meet the Miscellaneous Organic Natural Emissions Standards for Hazardous Air Pollutants regulation. We expect to continue to finance capital spending through cash provided from operations, together with borrowing available under our senior credit facility.

Sale-Leaseback Transaction

In June 2003, we entered into a sale-leaseback transaction for the land, buildings, and certain equipment located at our Bracknell, England facility. We received $11.1 million for the assets, which had a net book value of $9.6 million. The resulting operating lease is for ten years with an option to terminate the lease after five years. The gain of $1.5 million was deferred and is being amortized over the term of the lease agreement.

Environmental Expenses

We spent approximately $14 million in 2004 and $13 million in both 2003 and 2002 for environmental operating and clean-up costs, excluding depreciation of previously capitalized expenditures. Of these amounts, the ongoing costs of operations were $13 million in 2004 and $11 million in 2003 and 2002. The balance represents clean-up, or remediation and monitoring costs. These environmental operating and clean-up expenses are included in cost of goods sold. In the next year, we expect environmental operating and remediation costs to be about the same as 2004. Further, we expect to continue to fund these costs through cash provided by operations.

Contractual Obligations

The table below shows our year-end contractual obligations by year due.

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Under the TEL marketing agreements with Octel, we are required to provide approximately one-third of the cost of product sold to customers in the territory from our inventory or post an equivalent dollar value deposit with Octel. The value of our available inventory fell below the requirement at year-end 2000 and was substantially depleted at year-end 2001 as it was utilized for sales under the agreements. The dollar value requirement was $14 million at December 31, 2004 and $11 million at December 31, 2003. We now cover this requirement of the marketing agreements through the value of a working capital advance due from Octel. We funded this advance in 2000 and it is being paid to us as the requirement decreases and will be paid in full at the end of the agreements. These amounts have been recorded in other assets and deferred charges. See Note 10 of the Notes to Consolidated Financial Statements.

Pension and Postretirement Benefit Plans

We apply Statement of Financial Accounting Standards No. 87, “Employers’ Accounting for Pensions” (SFAS 87) and Statement of Financial Accounting Standards No. 106, “Employers’ Accounting for Postretirement Benefits Other Than Pensions” (SFAS 106) to account for our pension and postretirement plans. We use a December 31 measurement date to determine our pension and postretirement expenses and related financial disclosure information.

Investment Return Assumptions under SFAS 87 and Asset Allocation—We periodically review our assumptions for the long-term expected return on pension plan assets. As part of the review and to develop expected rates of return, our independent consulting actuaries performed a stochastic analysis of expected returns based on the domestic plans’ asset allocation as of both January 1, 2004 and January 1, 2005. This forecast reflects our actuarial firm’s expected long-term rates of return for each significant asset class or economic indicator. As of January 1, 2005, our actuarial firm’s expected rates were 9.7% (9.6% last year) for U.S. large cap stocks, 6.1% (6.1% last year) for U.S. long-term corporate bonds, and 2.8% (2.7% last year) for inflation. The range of returns developed relies both on forecasts and on broad-market historical benchmarks for expected return, correlation, and volatility for each asset class.

While the expected investment return assumption is long-term in nature, the range of reasonable returns has dropped over the past few years as a consequence of lower inflation and lower bond yields. Nevertheless, because our asset allocation is predominantly weighted toward equities, we have maintained our expected long-term rate of return for our domestic plans at 9% for the last several years.

Actuarial losses, where the actual return was less than the expected return, resulted during 2004 and 2002. The one-year investment return was lower than the long-term assumption by about $1 million in 2004 and $17 million in 2002 for all of our domestic pension plans. By contrast, actual investment return exceeded assumed return in 2003 by about $3 million. Investment losses enter earnings on an amortized basis so that recent years’ losses resulted in increased expense of about $1 million in 2004, as well as an expected $1 million increased expense in 2005. We expect that there will be continued volatility in pension expense as actual investment returns vary from the expected return, but we continue to believe the results justify the risk premium for equity investments.

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Pension expense is sensitive to changes in the expected return on assets. For example, decreasing the expected rate of return by 25 basis points to 8.75% (while holding other assumptions constant) would increase the forecasted 2005 expense for our domestic pension plans by about $150 thousand. Similarly, a 25 basis point increase in the expected rate of return to 9.25% (while holding other assumptions constant) would reduce forecasted 2005 pension expense by about $150 thousand.

Discount Rate Assumption under SFAS 87 and SFAS 106—In accordance with SFAS 87 and SFAS 106, we set the discount rate for our retirement plans by reference to investment-grade bond yields. We use Moody’s published AA yield for long-term corporate bonds for the last day of December as an index, and our discount rate will be within 25 basis points of the index. Moody’s AA yield dropped from 6.01% for December, 2003 to 5.66% for December, 2004. Accordingly, we reduced our discount rate for all domestic plans from 6.00% as of December 31, 2003 to 5.75% as of December 31, 2004. We maintained our rate of projected compensation increase at December 31, 2004 at 4.0%.

Pension expense is also sensitive to changes in the discount rate. For example, decreasing the discount rate by 25 basis points to 5.50% (while holding other assumptions constant) would increase the forecasted 2005 expense for our domestic pension plans by approximately $500 thousand. A 25 basis point increase in the discount rate to 6.00% would reduce forecasted 2005 pension expense by approximately $500 thousand.

Liquidity—Cash contribution requirements to the pension plan are sensitive to changes in assumed interest rates in the same manner as pension expense. We expect our aggregate domestic cash contributions, before income taxes, will be approximately $4 million in 2005, while foreign cash contributions will be approximately $6 million. In addition to the estimated $4 million cash contribution for domestic plans, we expect the rabbi trust will contribute approximately $2 million for the nonqualified plan.

Other Assumptions under SFAS 106—During 2002, we reviewed our assumption for the health care cost trend rate under SFAS 106. This review was done with reference to cost increases in our own plans, as well as broader market increases in employer-provided health care costs and observations of SFAS 106 assumptions used by other large employers. Consequently, as of December 31, 2002, we increased our assumption for the health care cost trend rate substantially to a rate of 11% in 2002 scaling down to 5.5% over the next ten years. Previously, the health care cost trend rate was 6% to 7%. The assumption of declining inflation is consistent with the expectation that medical cost increases will abate after several years of double-digit growth. We have reviewed these assumptions and believe they continue to be appropriate for 2004.

The expected long-term rate of return on our postretirement plans is 7%. This rate varies from the pension rate of 9% primarily because of the difference in investment of assets. The assets of the postretirement plan are held in an insurance contract, which results in a lower assumed rate of investment return.

OUTLOOK

Petroleum Additives

We made many improvements and grew the petroleum additives business during 2004 with shipments up 18% compared to last year. The future profits of this segment will continue to be influenced by the factors we have discussed during this year. Those major factors include:

With crude oil in the $45 to $50 per barrel range, our raw materials remain very high. We have been working to recover these higher costs through several price increases. Generally, our margins are reduced when the costs of raw materials are rising rapidly, as our ability to raise prices lags the impact of the raw material increases. In addition to crude oil being high, many of the commodity chemicals we purchase are in tight demand, which increases the prices for these chemicals. Consequently, even if crude oil comes down from these high levels, many of our raw material costs will remain high.

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With our mix of business, our results are favorably impacted when the dollar is weak, relative to the Euro. We have enjoyed increased profits this year due to this relationship.

Current business factors would lead us to expect that the operating profit for petroleum additives will be higher in 2005 than in 2004.

TEL

There have been no major changes to the factors that influence the profits that we will earn from TEL in any given year. TEL continues to be phased-out around the world. We have been somewhat successful in reducing the profit impact of the volume decline with improvements in price, as we set prices based on the economic value of the product. We expect that TEL will earn less in 2005 than in 2004.

Cash Flow

We expect that our debt reduction capacity from our cash flow for 2005 will be in the $40 million to $50 million range. With only $30 million of bank debt on the balance sheet, we expect to build cash for future corporate needs once this amount has been paid.

RELATED PARTY TRANSACTIONS

Thomas E. Gottwald, our chief executive officer and a director, is a son of Bruce C. Gottwald, our chairman of the board of directors and our former chief executive officer. The members of the family of Bruce C. Gottwald may be deemed to be control persons of NewMarket. Bruce C. Gottwald and Floyd D. Gottwald, Jr., who are brothers (collectively, the Gottwalds), each owns more than 5% of the outstanding shares of our common stock.

Effective September 24, 2004, NewMarket Services Corporation (NewMarket Services), entered into a Membership Units Purchase and Assignment Agreement (the Agreement), with the Gottwalds and Old Town LLC (Old Town) under which NewMarket Services agreed to purchase all of the voting and non-voting units in Old Town LLC owned by the Gottwalds. The purchase price of $3.3 million was based on an appraisal conducted by an independent third-party. The Agreement also provided that each of the Gottwalds must resign as a manager of Old Town. Our Audit Committee and all of our independent directors unanimously approved the Agreement.

Under the terms of the Agreement, in the event that NewMarket Services decides to sell substantially all of the assets of Old Town and receives an offer from a third-party for such assets, NewMarket Services must provide the offer to the Gottwalds, who will have 30 days to purchase the assets of Old Town on the same terms and conditions as contained in the third-party offer.

In April 2001, we had sold the property, located in King William, Virginia and consisting of approximately 1,600 acres, to Old Town, LLC, which at the time was owned by the Gottwalds for $2.9 million in cash based on independent appraisals. We managed the property for Old Town, LLC.

On February 1, 2002, Bruce C. Gottwald made a loan to Ethyl in the amount of $18.6 million for a three-year term at an interest rate of 8.5%. The monthly payments were interest only during the term of the loan, with the principal amount coming due at maturity. We used the proceeds of the loan to pay down then existing debt. The loan was non-recourse to Ethyl and was secured by a first deed of trust on the three buildings at 330 South Fourth Street, Richmond, Virginia, that constitute our principal offices. An independent appraiser valued the three buildings at $18.6 million. This loan was paid in full on April 30, 2003.

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On February 28, 1994, Ethyl completed the spin-off of Albemarle. The two companies have agreements that describe the conditions under which Albemarle must reimburse NewMarket for tax, environmental, and certain other liabilities. Generally, Albemarle is responsible for tax, environmental, and certain other exposures related to its operations before the spin-off of Albemarle. We believe that Albemarle has the ability to comply with this indemnification agreement. Further information, including comments regarding a $4 million receivable we have recorded from Albemarle, is in Note 18 of the Notes to Consolidated Financial Statements.

NewMarket and Albemarle have agreements to coordinate certain facilities and services, including Albemarle’s ongoing production of MMT for us. In connection with these agreements, Albemarle billed us approximately $9 million in both 2004 and 2003 and $23 million in 2002. The decrease in 2003 reflects the sale of the phenolic antioxidant business to Albemarle in January 2003. After the sale of the business, Albemarle no longer supplied us with antioxidant finished products for third-party resale. They continue to supply MMT, as well as our internal needs for antioxidants.

On January 21, 2003, we completed the sale of our phenolic antioxidants business to Albemarle. The decision to sell the phenolic antioxidants business followed an extensive strategic assessment of our business assets where we concluded the phenolic antioxidants business was not part of our future core business or growth goals. Further information is provided above in the “Income from Operations of Discontinued Business” section of Item 7.

CRITICAL ACCOUNTING POLICIES

It is our goal to clearly present our financial information in a manner that enhances the understanding of our sources of earnings and our financial condition. We do this by including the information required by the Securities and Exchange Commission, as well as additional information that gives further insight into our financial operations.

Our financial report includes a discussion of our accounting principles, as well as methods and estimates used in the preparation of our financial statements. We believe these discussions and statements fairly represent the financial position and operating results of our company. The purpose of this portion of our discussion is to further emphasize some of the more critical areas where a significant change in facts and circumstances in our operating and financial environment could cause a change in reported financial results.

As discussed in various sections of our report, we have made certain payments related to our TEL marketing agreements. We made the final payment of $3 million in 2003. The unamortized total is $21 million at December 31, 2004. We are amortizing these costs on an accelerated basis using a declining balance method over the life of the contracts. We believe this is the appropriate methodology and time period for this amortization based on the facts and circumstances of our TEL operations and the estimated product life of TEL. The customer base of TEL is significantly concentrated in a few countries and when conditions change that cause a shorter product life or other restrictions outside of our control, the amortization period is adjusted accordingly. Any adjustment to the amortization period would impact earnings, but would have no effect on cash flows. We continue to keep our accounting for this issue current with the business conditions.

We also have certain identifiable intangibles amounting to $51 million at year-end 2004 that are discussed in Note 11 of the Notes to Consolidated Financial Statements. These intangibles relate to our petroleum additives business and are being amortized over periods with up to eleven years of remaining life. We continue to assess the market related to these intangibles, as well as their specific values, and have concluded the amortization periods and values are appropriate. During 2003, due to a change in a contract, we modified the amortization period of one of the identifiable intangibles from nine remaining years to two remaining years. We also evaluate these intangibles for any potential impairment. These evaluations continue to support the value at which these identifiable intangibles are carried on our financial statements. However, if conditions were to substantially deteriorate in this market, it could possibly cause a reduction in the periods of this amortization charge or could

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possibly result in a noncash write-off of a portion of the intangibles’ carrying value. A reduction in the amortization period would have no cash effect. While we do not anticipate such a change in the market conditions, this disclosure is provided to enhance the understanding of the factors involved.

We have made disclosure of our environmental issues in Item 1 of this report, as well as in the Notes to Consolidated Financial Statements. We believe our environmental accruals are appropriate for the exposures and regulatory guidelines under which we currently operate. While we currently do not anticipate significant changes to the many factors that could impact our environmental requirements, we continue to keep our accruals consistent with these requirements as they change.

Also, as noted in the discussion of Legal Proceedings in Item 3 of this report, while it is not possible to predict or determine the outcome of any legal proceeding, we do not believe that we will experience any material adverse effects on our results of operations or financial condition as a result of any pending or threatened proceeding.

We use significant assumptions to record the impact of the pension and postretirement plans in the financial statements. These assumptions include the discount rate, expected long-term rate of return on plan assets, rate of compensation increase, and health-care cost trend rate. A change in any one of these assumptions could result in significantly different results for the plans. We develop these assumptions after considering advice from a major global actuarial consulting firm. Information is provided on the pension and postretirement plans in Note 19 of the Notes to Consolidated Financial Statements. In addition, further disclosure on the effect of changes in these assumptions is provided in the “Financial Position and Liquidity” section of Item 7.

RECENTLY ISSUED ACCOUNTING STANDARDS

In December 2004, the Financial Accounting Standards Board (FASB) issued Statement of Financial Accounting Standards No. 123 (Revised 2004) “Share-Based Payment.” The statement is a revision of FASB Statement No. 123, “Accounting for Stock-Based Compensation” and supersedes Accounting Principles Board Opinion No. 25, “Accounting for Stock Issued to Employees.” In general, the statement provides guidance in accounting for transactions in which a company obtains employee services in exchange for share-based payments. The statement requires that the cost from share-based payment transactions be recognized in the financial statements and be determined using a fair-value-based measurement method. This standard is effective for interim periods beginning after June 15, 2005 and applies to all share-based payment transactions initiated or modified after the effective date. We are evaluating this statement, but do not expect it to have a significant impact on our financial results.

In December 2004, the FASB issued FASB Staff Position No. 109-1, “Application of FASB Statement No. 109, Accounting for Income Taxes, to the Tax Deduction on Qualified Production Activities Provided by the American Jobs Creation Act of 2004,” which provides guidance on applying FASB Statement No. 109, “Accounting for Income Taxes,” to the tax deduction on qualified production activities provided under the American Jobs Creation Act of 2004 (“the Act”). In addition, FASB issued FASB Staff Position No. 109-2, “Accounting and Disclosure Guidance for the Foreign Earnings Repatriation Provision within the American Jobs Creation Act of 2004,” which provides guidance on the Act’s repatriation provision. The deduction for qualified production activities under the Act became effective January 1, 2005. We are currently evaluating the impact of the provisions of the FASB guidance related to qualified production activities on our effective tax rate for future periods. The FASB has also provided guidance for the appropriate point at which a company should reflect in its financial statements the effects of a one-time tax benefit on the repatriation of foreign earnings. Based on current facts and circumstances, we have concluded that we currently do not qualify for this one-time tax benefit.

ITEM 7A.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are exposed to many market risk factors including fluctuations in interest and foreign currency rates, as well as changes in the cost of raw materials and marketable security prices. These risk factors may affect our results of operations, cash flows, and financial position.

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We manage these risks through regular operating and financing methods, including the use of derivative financial instruments. When we have derivative instruments, they are with major financial institutions and are not for speculative or trading purposes. Also, as part of our financial risk management, we regularly review significant contracts for embedded derivatives. As of December 31, 2004, based on our review, we had no contracts with an embedded derivative.

The following analysis presents the effect on our earnings, cash flows, and financial position as if the hypothetical changes in market risk factors occurred at year-end 2004. We analyzed only the potential impacts of our hypothetical assumptions. This analysis does not consider other possible effects that could impact our business.

Interest Rate Risk

At December 31, 2004, we had total debt of $184 million with $30 million at variable interest rates. Holding all other variables constant, if the variable portion of the weighted-average interest rates on the variable rate debt hypothetically increased 10% (approximately 26 basis points), the effect on our earnings and cash flows would have been higher interest expense of $80 thousand.

Since most of our debt at year-end 2004 is at a fixed rate, a hypothetical 10% decrease in interest rates, holding all other variables constant, would have resulted in a change of $6 million in fair value.

Foreign Currency Risk

We sell to customers in foreign markets through our foreign subsidiaries, as well as through export sales from our plants in the United States. These transactions are often denominated in currencies other than the U.S. dollar. Our primary currency exposures are the European Union euro, British pound sterling, Japanese yen, and Canadian dollar.

We sometimes enter into forward contracts as hedges to minimize the fluctuation of accounts receivable denominated in foreign currencies. During 2004, we entered into $26 million of Euro-denominated forward contracts to minimize currency exposure from expected cash flows from foreign operations. The contracts all have maturity dates in 2005. With other variables held constant, a hypothetical 10% adverse change in the December 31, 2004 forward Euro rates would have resulted in a decrease of about $3 million in the value of these contracts.

Raw Material Price Risk

We utilize a variety of raw materials in the manufacture of our products, including base oil, polyisobutylene, olefin copolymers, maleic anhydride, antioxidants, alcohols, and methacrylates. Our profitability is sensitive to changes in the costs of these materials caused by changes in supply, demand or other market conditions, over which we have little or no control. If we experience sudden or sharp increases in the cost of our raw materials, we may not be able to pass on these increases in whole or in part to our customers. Political and economic conditions in the Middle East and Latin America have caused and may continue to cause the cost of our raw materials to fluctuate. War, armed hostilities, terrorist acts, civil unrest or other incidents may also cause a sudden or sharp increase in the cost of our raw materials. If we cannot pass on to our customers any future increases in raw material costs in the form of price increases for our products, there will be a negative impact on operating profit.

During 2003, DSM Copolymer, Inc., our supplier of olefin copolymer viscosity index improvers, notified us of its intent to terminate a long-term supply agreement in mid-2005. The contract was initially scheduled to terminate in 2012. We have developed other supply alternatives and expect no disruption of supply. These new alternatives may be more expensive than the previous agreement.

Marketable Security Price Risk

At year-end 2004, our marketable securities had a fair value of $2.5 million, including net unrealized gains of $200 thousand. The estimated loss in the fair value resulting from a hypothetical 10% decrease in the price would have been $300 thousand.

Since the securities are classified as “available for sale,” adjustments to fair value of a temporary nature are reported in accumulated other comprehensive loss, and would not impact our results of operations or cash flows until such time that the securities are sold or that the impairment is determined to be other than temporary in nature.

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Other Risk Factors

Our business is subject to many factors that could materially adversely affect our future performance and cause our actual results to differ materially from those expressed or implied by forward-looking statements made in this annual report. Those risk factors are outlined below:

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Financial Policy

NewMarket Corporation’s Financial Standards—Our goal is to present clearly NewMarket’s financial information to enhance your understanding of our sources of earnings and cash flows and our financial condition.

Management’s Report on the Financial Statements—NewMarket prepared the financial statements and related notes in accordance with GAAP. In doing so, management made informed judgments and estimates of the expected effects of certain events and transactions on the reported amounts of assets and liabilities at the dates of the financial statements. The same is true for the reported amounts of revenues and expenses during these reporting periods. Financial data appearing elsewhere in the annual report is consistent with these financial statements. However, actual results could differ from the estimates on which these financial statements are based.

PricewaterhouseCoopers LLP (PwC), an independent registered public accounting firm, audited these financial statements in accordance with the standards of the Public Company Accounting Oversight Board (United States).

The Audit Committee of the Board of Directors, composed only of independent directors, meets with management and PwC to review accounting, auditing, and financial reporting matters. The independent registered public accounting firm is appointed by the Audit Committee.

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ITEM 8.    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Report of Independent Registered Public Accounting Firm

To the Board of Directors and Shareholders of NewMarket Corporation:

We have completed an integrated audit of NewMarket Corporation’s 2004 consolidated financial statements and of its internal control over financial reporting as of December 31, 2004 and audits of its 2003 and 2002 consolidated financial statements in accordance with the standards of the Public Company Accounting Oversight Board (United States). Our opinions, based on our audits, are presented below.

Consolidated financial statements

In our opinion, the accompanying consolidated balance sheet and the related consolidated statements of income, shareholders’ equity and cash flows present fairly, in all material respects, the financial position of NewMarket Corporation and its subsidiaries at December 31, 2004 and December 31, 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 of financial statements 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 15 to the financial statements, the Company changed the manner in which it accounts for asset retirement costs as of January 1, 2003. As discussed in Note 11 to the financial statements, the Company changed the manner in which it accounts for goodwill and other intangible assets as of January 1, 2002.

Internal control over financial reporting

Also, in our opinion, management’s assessment included in Management’s Report on Internal Control Over Financial Reporting appearing under Item 9A, that the Company maintained effective internal control over financial reporting as of December 31, 2004 based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), is fairly stated, in all material respects, based on those criteria. Furthermore, in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2004, based on criteria established in Internal Control—Integrated Framework issued by the COSO. The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting. Our responsibility is to express opinions on management’s assessment and on the effectiveness of the Company’s internal control over financial reporting based on our audit. We conducted our audit of internal control over financial reporting 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 effective internal control over financial reporting was maintained in all material respects. An audit of internal control over financial reporting includes obtaining an understanding of internal control over financial reporting, evaluating management’s assessment, testing and evaluating the design and operating effectiveness of internal control, and performing such other procedures as we consider necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinions.

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in

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accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ PricewaterhouseCoopers LLP

Richmond, Virginia

March 14, 2005

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NewMarket Corporation & Subsidiaries

Consolidated Statements of Income