Exhibit 99.1

HUNTSMAN RELEASES FIRST QUARTER 2014 RESULTS;

DEMONSTRATES BROAD EARNINGS STRENGTH ACROSS DIVISIONS AS

ADJUSTED EBITDA IMPROVES 50% COMPARED TO PRIOR YEAR

First Quarter 2014 Highlights

·                  Adjusted EBITDA was $329 million compared to $220 million in the prior year period, an improvement of 50%.

·                  Adjusted diluted income per share was $0.43 compared to $0.19 in the prior year period.

·                  Net income attributable to Huntsman Corporation was $54 million compared to net loss of $24 million in the prior year period.

See end of press release for footnote explanations

The Woodlands, TX — Huntsman Corporation (NYSE: HUN) today reported first quarter 2014 results with revenues of $2,755 million and adjusted EBITDA of $329 million.

Peter R. Huntsman, our President and CEO, commented:

“Our first quarter results demonstrated broad earnings strength as all of our businesses exceeded the previous year with the exception of PO/MTBE.  The benefits of our previous year’s restructuring efforts are visible in both our Advanced Materials and Textile Effects results.  We continue to see strong results in our Performance Products and MDI polyurethanes, which make up the core of our earnings.

We remain actively engaged with the European Union in their antitrust review of our proposed acquisition of Rockwood Holding’s Performance Additives and Titanium Dioxide businesses.

This past month, at our Investor Day we presented a plan to achieve $2 billion of Adjusted EBITDA within the next 2-3 years.  With these strong first quarter results, we’re well on our way to achieving this target.”

Segment Analysis for 1Q14 Compared to 1Q13

Polyurethanes

The increase in revenues in our Polyurethanes division for the three months ended March 31, 2014 compared to the same period in 2013 was primarily due to higher sales volumes partially offset by lower average selling prices.  MDI sales volumes increased 6% as a result of improved demand in all regions and across most major markets whereas PO/MTBE sales volumes were essentially unchanged.  PO/MTBE average selling prices decreased primarily due to less favorable market conditions and MDI Urethane average selling prices were essentially flat.  The decrease in adjusted EBITDA was due to lower PO/MTBE margins partially offset by an increase in MDI Urethane earnings.

Performance Products

The increase in revenues in our Performance Products division for the three months ended March 31, 2014 compared to the same period in 2013 was due to higher sales volumes and higher selling prices partially offset by the mix effect of more toll business.  Sales volumes increased primarily due to the impact of the scheduled maintenance on our olefins and ethylene oxide facilities in Port Neches, Texas in the first quarter of 2013, as well as improved demand for amines and maleic anhydride.  Average selling prices increased, notably for maleic anhydride and surfactants, in response to higher raw materials costs.  The increase in adjusted EBITDA was primarily due to the impact of our scheduled maintenance in the first quarter of 2013, estimated at $55 million.

Advanced Materials

The decrease in revenues in our Advanced Materials division for the three months ended March 31, 2014 compared to the same period in 2013 was primarily due to lower sales volumes, partially offset by higher average selling prices and favorable sales mix.  Sales volumes decreased in our base resins business primarily due to our restructuring efforts.  During the fourth quarter 2013 we closed two of our base resins production units as we focus on higher value component and formulations sales such as aerospace, transportation and industrial markets.  Average selling prices increased in all regions primarily due to increased prices for certain products as well as an increased focus on higher value component and formulations sales.  The increase in adjusted EBITDA was primarily due to higher contribution margins and lower manufacturing and selling, general and administrative costs as a result of our restructuring efforts.

Textile Effects

The increase in revenues in our Textile Effects division for the three months ended March 31, 2014 compared to the same period in 2013 was due to higher average selling prices and higher sales volumes.  Average

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selling prices increased primarily in response to higher raw material costs.  Sales volumes increased primarily due to increased market share and stronger consumer end market sentiment.  The increase in adjusted EBITDA was primarily due to higher contribution margins as a result of our restructuring efforts.

Pigments

The decrease in revenues in our Pigments division for the three months ended March 31, 2014 compared to the same period in 2013 was primarily due to lower average selling prices as sales volumes were essentially unchanged.  Average selling prices decreased primarily as a result of high industry inventory levels partially offset by the strength of the euro against the U.S. dollar.  The increase in adjusted EBITDA was primarily due to lower manufacturing costs as a result of higher production volumes.

Corporate, LIFO and Other

Adjusted EBITDA from Corporate, LIFO and Other improved by $1 million to a loss of $44 million for the three months ended March 31, 2014 compared to a loss of $45 million for the same period in 2013.

Liquidity, Capital Resources and Outstanding Debt

As of March 31, 2014 we had $902 million of combined cash and unused borrowing capacity compared to $1,048 million at December 31, 2013.

Total capital expenditures for the quarter ended March 31, 2014 were $107 million.  We expect to spend approximately $500 million on capital expenditures in 2014, net of reimbursements and excluding any amounts associated with the planned acquisition of the Performance Additives and Titanium Dioxide businesses of Rockwood Holdings, Inc.

Income Taxes

During the three months ended March 31, 2014 we recorded income tax expense of $36 million and paid $46 million in cash for income taxes.  Our adjusted effective income tax rates for the three months ended March 31, 2014 was approximately 32%.

We expect our 2014 adjusted effective tax rate to be approximately 35% excluding the impact of the acquisition of the Performance Additives and Titanium Dioxide businesses of Rockwood Holdings, Inc.  We expect our long term adjusted effective tax rate to be approximately 30%.

Earnings Conference Call Information

We will hold a conference call to discuss our first quarter 2014 financial results on Tuesday, April 29, 2014 at 10:00 a.m. ET.

In order to facilitate the registration process, you may use the following link to pre-register for the conference call. Callers who pre-register will be given a unique PIN to gain immediate access to the call and bypass the live operator. You may pre-register at any time, including up to and after the call start time. To pre-register, please go to:

https://www.theconferencingservice.com/prereg/key.process?key=PXFJDHCNN

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Webcast Information

The conference call will be available via webcast and can be accessed from the investor relations portion of the company’s website at huntsman.com.

Replay Information

The conference call will be available for replay beginning April 29, 2014 and ending May 6, 2014.

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Table 1 — Results of Operations

See end of press release for footnote explanations

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Table 2 — Results of Operations by Segment

Table 3 — Factors Impacting Sales Revenues

(a) Excludes sales from tolling arrangements, by-products and raw materials.

(b) Excludes sales from by-products and raw materials.

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Table 4 — Reconciliation of U.S. GAAP to Non-GAAP Measures

See end of press release for footnote explanations                               

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Table 5 — Reconciliation of Net Income (Loss) to EBITDA

See end of press release for footnote explanations

Table 6 — Selected Balance Sheet Items

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Table 7 — Outstanding Debt

Table 8 — Summarized Statement of Cash Flows

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Footnotes

(1)   We use EBITDA and adjusted EBITDA to measure the operating performance of our business.  We provide adjusted net income because we feel it provides meaningful insight for the investment community into the performance of our business.  We believe that net income (loss) attributable to Huntsman Corporation is the performance measure calculated and presented in accordance with generally accepted accounting principles in the U.S. (“GAAP”) that is most directly comparable to EBITDA, adjusted EBITDA and adjusted net income.  Additional information with respect to our use of each of these financial measures follows:

EBITDA is defined as net income (loss) attributable to Huntsman Corporation before interest, income taxes, and depreciation and amortization. EBITDA as used herein is not necessarily comparable to other similarly titled measures of other companies. The reconciliation of EBITDA to net income (loss) attributable to Huntsman Corporation is set forth in Table 5 above.

Adjusted EBITDA is computed by eliminating the following from EBITDA:  acquisition expenses and purchase accounting inventory adjustments; loss (gain) on initial consolidation of subsidiaries; EBITDA from discontinued operations; loss (gain) on disposition of businesses/assets; loss on early extinguishment of debt; extraordinary loss (gain) on the acquisition of a business; certain legal settlements and related expenses; amortization of pension and postretirement actuarial losses (gains); and restructuring, impairment, plant closing and transition costs (credits).  The reconciliation of adjusted EBITDA to EBITDA is set forth in Table 4 above.

Adjusted net income (loss) is computed by eliminating the after tax impact of the following items from net income (loss) attributable to Huntsman Corporation: acquisition expenses and purchase accounting inventory adjustments; loss (gain) on initial consolidation of subsidiaries; loss (income) from discontinued operations; discount amortization on settlement financing associated with the terminated merger; loss (gain) on disposition of businesses/assets; loss on early extinguishment of debt; extraordinary loss (gain) on the acquisition of a business; certain legal settlements and related expenses; amortization of pension and postretirement actuarial losses (gains); and restructuring, impairment, plant closing and transition costs (credits).  We do not adjust for changes in tax valuation allowances because we do not believe it provides more meaningful information than is provided under GAAP.  The reconciliation of adjusted net income (loss) to net income (loss) attributable to Huntsman Corporation common stockholders is set forth in Table 4 above.

(2)   During the first quarter 2010 we closed our Australian styrenics operations; results from this business are treated as discontinued operations.

About Huntsman:

Huntsman Corporation is a publicly traded global manufacturer and marketer of differentiated chemicals with 2013 revenues of over $11 billion. Our chemical products number in the thousands and are sold worldwide to manufacturers serving a broad and diverse range of consumer and industrial end markets.  We operate more than 80 manufacturing and R&D facilities in 30 countries and employ approximately 12,000 associates within our 5 distinct business divisions.  For more information about Huntsman, please visit the company’s website at www.huntsman.com.

Forward-Looking Statements:

Statements in this release that are not historical are forward-looking statements. These statements are based on management’s current beliefs and expectations. The forward-looking statements in this release are subject to uncertainty and changes in circumstances and involve risks and uncertainties that may affect the company’s operations, markets, products, services, prices and other factors as discussed in the Huntsman companies’ filings with the U.S. Securities and Exchange Commission. Significant risks and uncertainties may relate to, but are not limited to, financial, economic, competitive, environmental, political, legal, regulatory and technological factors.  The company assumes no obligation to provide revisions to any forward-looking statements should circumstances change, except as otherwise required by applicable laws.

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