Company Announcements

HOUSTON--(BUSINESS WIRE)--May 5, 2026-- Westlake Corporation (NYSE: WLK) (the "Company" or "Westlake") today announced first quarter 2026 results.

BUSINESS HIGHLIGHTS

In the first quarter of 2026, Westlake reported net sales of $2.7 billion, a net loss of $169 million, or $1.31 per share, and EBITDA (earnings before interest expense, income taxes, depreciation and amortization) of $150 million. Earnings in the first quarter were impacted by the previously announced $67 million settlement of certain litigation involving direct purchasers of PVC pipe and fittings in the United States and $18 million of charges related to previously announced facility shutdowns, including epoxy, North American chlorovinyls and styrene, and cost saving actions for a combined $85 million impact (the "Identified Items"). Excluding the effects of the Identified Items, the net loss in the first quarter of 2026 was $100 million, or $0.77 per share, and EBITDA was $235 million.

Compared to the fourth quarter of 2025, Westlake's first quarter of 2026 sales volume increased 6% (excluding sales attributable to plant closures and acquisitions) while average sales price increased 1%. Housing and Infrastructure Products sales increased 10%, driven by 10% sales volume growth (excluding the ACI acquisition) that more than offset a 5% decline in average sales price. Performance and Essential Materials sales increased 2% over the same period of time due to a 3% increase in average sales price and a 3% increase in sales volume (excluding plant shutdowns) that was partially offset by a 5% sales impact from plant shutdowns.

EXECUTIVE COMMENTARY

"The first quarter of 2026 began to reflect our cost reduction initiatives announced in 2025. Late in the first quarter we began to see margin improvement in the PEM segment as a result of the Iranian conflict. Our HIP segment saw gains in Pipe and Fittings sales volumes driven by continued strength in infrastructure spending, which was more than offset by the subdued North American residential construction activity and lower average sales prices," said Jean‑Marc Gilson, President and Chief Executive Officer.

"Since the closure of the Strait of Hormuz in March, PVC resin and polyethylene sales prices have risen significantly, driven by a steepening of the global cost curve as a result of sharply higher global feedstock and energy prices. At the same time, North American natural gas costs have declined from earlier-year levels due to more favorable weather conditions. While the duration and severity of the impact on global feedstock and energy markets from supply chain disruptions remain uncertain, we expect these factors to provide a meaningful benefit to PEM's margins through at least the summer of 2026. We expect HIP sales volume to be supported by continued infrastructure spending, including strong demand from new data centers, although interest rates and increased building costs are likely to keep home affordability as a headwind to sales volume growth. Finally, in addition to the pricing and margin benefits of a steeper global cost curve, we anticipate further earnings improvement in the coming quarters as we continue to execute against our three‑pillar profitability improvement plan," Mr. Gilson concluded.

RESULTS

Consolidated Results

(Unless otherwise noted the financial numbers below exclude the effects of the Identified Items)

For the three months ended March 31, 2026, the Company reported a quarterly net loss of $100 million, or $0.77 per share, on net sales of $2.7 billion compared to the net loss of $131 million reported in the fourth quarter of 2025. Sequentially, earnings benefited from the ACI acquisition and higher HIP sales volume, which were partially offset by the impact of higher natural gas costs.

EBITDA of $235 million for the first quarter of 2026 decreased by $60 million compared to first quarter 2025 EBITDA of $295 million. First quarter 2026 EBITDA increased by $39 million compared to fourth quarter 2025 EBITDA of $196 million.

Reconciliations of non-GAAP financial measures used in this press release (including EBITDA and measures that exclude the effects of the Identified Items) to the most directly comparable GAAP measure can be found in the financial schedules at the end of this press release.

Cash, Investments and Debt

Net cash used for operating activities was $94 million for the first quarter of 2026 and capital expenditures were $209 million. As of March 31, 2026, cash, cash equivalents and fixed-income investments were $2.5 billion and total debt was $5.6 billion.

Housing and Infrastructure Products Segment

(Unless otherwise noted the financial numbers below exclude the effects of the Identified Items)

For the first quarter of 2026, Housing and Infrastructure Products income from operations of $124 million decreased by $24 million as compared to the first quarter of 2025. The year-over-year decrease was the result of lower average sales price and margins, particularly in Pipe & Fittings, and lower sales volume (excluding sales attributable to the ACI acquisition), particularly in Building Products.

Sequentially, Housing and Infrastructure Products income from operations increased by $42 million as compared to the fourth quarter of 2025. This increase in income from operations versus the prior quarter was primarily due to seasonally higher sales volume and sales attributable to the ACI acquisition.

Performance and Essential Materials Segment

(Unless otherwise noted the financial numbers below exclude the effects of the Identified Items)

For the first quarter of 2026, Performance and Essential Materials loss from operations was $194 million as compared to the first quarter of 2025's loss from operations of $156 million due to a 3% decline in average sales price that was partially offset by margin benefits from footprint optimization and cost saving actions. Performance Materials net sales of $1.0 billion in the first quarter of 2026 decreased by $53 million primarily due to lower average sales price for polyethylene and PVC resin and lower PVC resin sales volume due to footprint optimization actions. Essential Materials net sales of $656 million decreased by $138 million from the first quarter of 2025 primarily due to lower chlorine and caustic soda sales volume.

Sequentially, Performance and Essential Materials loss from operations for the first quarter of 2026 decreased by $28 million as compared to the fourth quarter of 2025. This improvement in loss from operations versus the prior quarter was primarily due to a higher average sales price, particularly for polyethylene.

Forward-Looking Statements

The statements in this release and the related teleconference relating to matters that are not historical facts, including statements regarding our outlook for the performance of our business segments and future earnings, global macroeconomic conditions and their effects on us and our customers, expectations regarding interest rates and building costs, trends in the global cost curve and any associated pricing and margin benefits, industrial and manufacturing activity in our target markets, including infrastructure spending and demand for data centers, growth in our customers' businesses and their dependence on our products, the effects of the conflict in Iran on us, our competitors and global supply chains, future global trading policy and relationships, housing demand and residential construction activity, raw material costs, fluctuations in energy and feedstock prices, our ability to execute against our profitability improvement plan and the effects of our optimization initiatives (including anticipated cost savings), our market position and the strength of our brands, the benefits of a diversified and integrated business model, our ability to maintain cost advantages and global demand for our products are forward-looking statements.

These forward-looking statements are subject to significant risks and uncertainties. Actual results could differ materially, based on factors including, but not limited to: general economic and business conditions; the cyclical nature of the chemical and building products industries; the availability, cost and volatility of raw materials and energy; uncertainties associated with the United States, European and worldwide economies, including those due to political tensions and conflict in the Middle East, Russia and Ukraine and elsewhere; uncertainties associated with pandemic infectious diseases; uncertainties associated with climate change; the potential impact on demand for ethylene, polyethylene and polyvinyl chloride due to initiatives such as recycling and customers seeking alternatives to polymers; current and potential governmental regulatory actions in the United States and other countries; industry production capacity and operating rates; the supply/demand balance for Westlake's products; competitive products and pricing pressures; instability in the credit and financial markets; access to capital markets; terrorist acts; operating interruptions; changes in laws and regulations, including trade policies and tariffs; the effects of government shutdowns; technological developments; information systems failures and cyberattacks; foreign currency exchange risks; our ability to implement our business strategies; creditworthiness of our customers; the effects and results of litigation and settlements of litigation; and other risk factors. For more detailed information about the factors that could cause actual results to differ materially, please refer to Westlake's Annual Report on Form 10-K for the year ended December 31, 2025, which was filed with the SEC in February 2026.

Use of Non-GAAP Financial Measures

This release makes reference to certain "non-GAAP" financial measures, such as EBITDA, free cash flow and other measures that exclude the effects of the Identified Items, as defined in Regulation G of the U.S. Securities Exchange Act of 1934, as amended. For this purpose, a non-GAAP financial measure is generally defined by the Securities and Exchange Commission (SEC) as a numerical measure of a registrant's historical or future financial performance, financial position or cash flows that (1) excludes amounts, or is subject to adjustments that have the effect of excluding amounts, that are included in the most directly comparable measure calculated and presented in accordance with GAAP in the statement of operations, balance sheet or statement of cash flows (or equivalent statements) of the registrant; or (2) includes amounts, or is subject to adjustments that have the effect of including amounts, that are excluded from the most directly comparable measure so calculated and presented. We report our financial results in accordance with U.S. generally accepted accounting principles (U.S. GAAP), but believe that certain non-GAAP financial measures, such as EBITDA, free cash flow and measures that exclude the effects of the Identified Items, provide useful supplemental information to investors regarding the underlying business trends and performance of the Company's ongoing operations and are useful for period-over-period comparisons of such operations. These non-GAAP financial measures should be considered as a supplement to, and not as a substitute for or superior to, the financial measures prepared in accordance with U.S. GAAP. A reconciliation of (i) net loss, loss from operations and net cash provided by (used for) operating activities to EBITDA, and (ii) net cash provided by (used for) operating activities to free cash flow and (iii) other measures reflecting adjustments for the effects of the Identified Items can be found in the financial schedules at the end of this press release.

About Westlake

Celebrating 40 years of operations in 2026, Westlake is a global manufacturer and supplier of materials and innovative products that enhance life every day. Headquartered in Houston, with operations in Asia, Europe and North America, we provide the building blocks for vital solutions — from housing and construction, to packaging and healthcare, to automotive and consumer goods. For more information, visit the Company's web site at www.westlake.com.

Westlake Corporation Conference Call Information:

A conference call to discuss Westlake Corporation's first quarter 2026 results will be held Tuesday, May 5, 2026 at 11:00 AM Eastern Time (10:00 AM Central Time). To access the conference call, it is necessary to pre-register at https://register-conf.media-server.com/register/BI34ea020237b448069214d7ccf868ece8. Once registered, you will receive a phone number and unique PIN number.

A replay of the conference call will be available beginning two hours after its conclusion. The conference call and replay will be available via webcast at https://edge.media-server.com/mmc/p/p33g6sjv/.

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Contact—(713) 960-9111
Investors—Steve Bender
Media—L. Benjamin Ederington

Source: Westlake Corporation