\n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Three Months
\n
Ended
\n
September 30,
\n
2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Three Months
\n
Ended
\n
June 30,
\n
2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Three Months
\n
Ended
\n
September 30,
\n
2024<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Westlake Corporation<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nNet sales<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n2,838<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n2,953<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n3,117<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nIncome (loss) from operations<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(766<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(109<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n180<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nNet income (loss) attributable to Westlake Corporation<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(782<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(142<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n108<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nDiluted earnings (loss) per common share<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(6.06<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(1.11<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n0.83<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nIdentified Items (1)<\/sup><\/p>\n<\/td>\n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n744<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n130<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n75<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nNet income (loss) attributable to Westlake Corporation excl. Identified Items<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(38<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(12<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n183<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nDiluted earnings (loss) per common share excl. Identified Items<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(0.29<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(0.09<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n1.41<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nEBITDA<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(431<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n210<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n505<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nEBITDA excl. Identified Items<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n313<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n340<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n580<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nEBITDA margin (2)<\/sup><\/p>\n<\/td>\n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n11<\/p>\n<\/td>\n | \n \n%<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n12<\/p>\n<\/td>\n | \n \n%<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n19<\/p>\n<\/td>\n | \n \n%<\/p>\n<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Housing and Infrastructure Products (“HIP”) Segment<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nNet sales<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n1,091<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n1,160<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n1,098<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nIncome from operations<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n151<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n222<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n202<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nEBITDA<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n215<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n275<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n262<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nEBITDA margin<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n20<\/p>\n<\/td>\n | \n \n%<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n24<\/p>\n<\/td>\n | \n \n%<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n24<\/p>\n<\/td>\n | \n \n%<\/p>\n<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Performance and Essential Materials (“PEM”) Segment<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nNet sales<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n1,747<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n1,793<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n2,019<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nIncome (loss) from operations<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(902<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(318<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(9<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nEBITDA<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(654<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(78<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n222<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nIdentified Items (1)<\/sup><\/p>\n<\/td>\n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n744<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n130<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n75<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nEBITDA excl. Identified Items<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n90<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n52<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n297<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nEBITDA margin (2)<\/sup><\/p>\n<\/td>\n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n5<\/p>\n<\/td>\n | \n \n%<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n3<\/p>\n<\/td>\n | \n \n%<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n15<\/p>\n<\/td>\n | \n \n%<\/p>\n<\/td>\n<\/tr>\n<\/table>\n \n\n| \n \n______________________________<\/p>\n<\/td>\n<\/tr>\n | \n| \n \n(1)<\/p>\n<\/td>\n | \n \nFor the three months ended September 2025, Identified Items include a non-cash impairment charge of $727 million representing all of the goodwill associated with the North American Chlorovinyls reporting unit, and $17 million of accrued expenses related to previously announced shutdowns. For the three months ended June 2025, Identified Items represent $115 million of accrued expenses and $15 million inventory write-off related to previously announced shutdowns. For the three months ended September 2024, Identified Items represent $75 million of accrued expenses related to previously announced shutdowns.<\/p>\n<\/td>\n<\/tr>\n | \n| \n \n(2)<\/p>\n<\/td>\n | \n \nExcludes Identified Items<\/p>\n<\/td>\n<\/tr>\n<\/table>\n BUSINESS HIGHLIGHTS<\/span><\/b><\/p>\n\nIn the third quarter of 2025, Westlake reported net sales of $2.8 billion, a net loss of $782 million, or $6.06 per share, and EBITDA (earnings before interest expense, income taxes, depreciation and amortization) of ($431) million. Earnings in the third quarter were impacted by a non-cash charge of $727 million to fully impair the goodwill associated with our North American chlorovinyls business (“Chlorovinyls Impairment”) as well as $17 million of accrued expenses for previously announced asset shutdowns (the “Identified Items”), which are included in the Performance and Essential Materials segment financial results. Excluding the Identified Items, the net loss in the third quarter of 2025 was $38 million, or $0.29 per share, and EBITDA was $313 million.<\/p>\n \nCompared to the second quarter of 2025, EBITDA excluding Identified Items of $313 million decreased by $27 million primarily due to lower average sales price in our PEM segment and lower sales volume in our HIP segment.<\/p>\n \nWestlake’s third quarter of 2025 sales volume decreased 1% and average sales price decreased by 2% as compared to the second quarter of 2025. Housing and Infrastructure Products sales decreased 6% sequentially, driven by a 6% decrease in sales volume and unchanged average sales price. Performance and Essential Materials sales decreased 3% over the same period of time as a higher sales volume was more than offset by a 4% decline in average sales price.<\/p>\n \nEBITDA excluding Identified Items of $313 million was lower than the third quarter of 2024 EBITDA excluding Identified Items of $580 million primarily due to lower average sales price and margin as well as lower sales volume in our PEM segment. Additionally, lower average sales price and several period-related administrative, restructuring and integration expenses in our HIP segment also contributed to the lower year-over-year EBITDA excluding Identified Items.<\/p>\n EXECUTIVE COMMENTARY<\/span><\/b><\/p>\n\n“Global macroeconomic conditions remained challenging throughout the third quarter of 2025 with continued weakness in industrial and manufacturing activity putting pressure on sales prices and margins in our PEM segment, particularly for chlorovinyls. As a result, during the third quarter we recorded a non-cash impairment charge of $727 million for all of the goodwill associated with PEM’s North American Chlorovinyls business. We remain committed to this business as the global need for its products, which are critical to industries ranging from building materials to water to manufacturing, remains intact. We have taken actions to reduce costs to deliver the earnings it is capable of generating and we will assess opportunities to optimize its footprint to return it to levels of profitability that provide an appropriate return on investment,” said Jean-Marc Gilson, President and Chief Executive Officer.<\/p>\n \n“Our HIP segment performed very well, holding sales in line with the prior-year period against a backdrop of slowing North American residential construction activity. HIP remains well positioned to continue to outgrow the market by ‘winning with the winners’ through product innovation and our solid position as a preferred supplier to large, national homebuilders and distributors,” continued Mr. Gilson.<\/p>\n \n“Looking ahead to next year, we expect our margins and earnings to be supported by actions that we are taking to improve our profitability. First, better plant reliability should improve EBITDA. Second, we have identified $200 million of cost savings that we expect to achieve in 2026. Third, footprint optimization actions that we have already taken, including the Pernis Shutdown, will remove approximately $100 million of annual losses starting in 2026. We believe that these actions will contribute to margins and earnings next year and for years to come,” concluded Mr. Gilson.<\/p>\n RESULTS<\/span><\/b><\/p>\nConsolidated Results<\/b><\/p>\n \n(Unless otherwise noted the financial numbers below exclude the Identified Items)<\/p>\n \nFor the three months ended September 30, 2025, the Company reported a quarterly net loss of $38 million, or $0.29 per share, on net sales of $2.8 billion compared to the net loss of $12 million reported in the second quarter of 2025. Sequentially, earnings were impacted by lower average sales price in our PEM segment and lower sales volume in our HIP segment, which were partially offset by higher sales volume in our PEM segment.<\/p>\n \nThe third quarter of 2025 net loss of $38 million was $221 million below the third quarter of 2024 primarily due to lower average sales price and margin, particularly in our PEM segment as a result of unfavorable changes in the global supply-demand balance for many of PEM’s products as a result of weaker global industrial and manufacturing demand.<\/p>\n \nEBITDA of $313 million for the third quarter of 2025 decreased by $27 million compared to second quarter 2025 as a result of lower average sales price and margin in our PEM segment and lower sales volume in our HIP segment, which were partially offset by a lower impact from planned turnarounds and unplanned outages in our PEM segment.<\/p>\n \nA reconciliation of EBITDA and net income to EBITDA excluding Identified Items and net income excluding Identified Items, as well as a reconciliation of EBITDA to net income, income from operations (including and excluding Identified Items) and net cash provided by operating activities, as well as a reconciliation of free cash flow to net cash flow provided by operating activities, can be found in the financial schedules at the end of this press release.<\/p>\n Expenses Regarding the Chlorovinyls Impairment and Facility Closures (“Identified Items”)<\/b><\/p>\n \nDuring the third quarter of 2025, the Company recorded a non-cash impairment charge of $727 million representing all of the goodwill associated with the North American Chlorovinyls reporting unit. Additionally, during the third quarter of 2025, the Company accrued $17 million of expenses related to previously- announced asset shutdowns.<\/p>\n Cash, Investments and Debt<\/b><\/p>\n \nNet cash provided by operating activities was $182 million for the third quarter of 2025 and capital expenditures were $239 million. As of September 30, 2025, cash, cash equivalents and fixed-income investments were $2.1 billion and total debt was $4.7 billion.<\/p>\n Housing and Infrastructure Products Segment<\/b><\/p>\n \nFor the third quarter of 2025, Housing and Infrastructure Products income from operations of $151 million decreased by $71 million as compared to the second quarter of 2025. This decrease in income from operations versus the prior quarter was primarily due to lower sales volume in Pipe & Fittings and Building Products due to the timing of customer orders between the second and third quarters.<\/p>\n \nCompared to the third quarter of 2024, Housing and Infrastructure Products income from operations decreased by $51 million. The year-over-year decrease was the result of lower average sales price and margins, particularly in Pipe & Fittings, and several period-related expenses.<\/p>\n Performance and Essential Materials Segment<\/b><\/p>\n \n(Unless otherwise noted the financial numbers below exclude the Identified Items)<\/p>\n \nFor the third quarter of 2025, Performance and Essential Materials loss from operations of $158 million decreased by $30 million as compared to the second quarter of 2025. This decrease in loss from operations versus the prior quarter was primarily driven by a lower impact from planned turnarounds and unplanned outages, which contributed to an increase in sales volume, particularly for caustic soda. Average sales price declined 4% from the second quarter of 2025, primarily driven by lower prices for PVC resin and unfavorable sales mix with higher sales in the export markets where pricing is typically lower.<\/p>\n \nPerformance and Essential Materials loss from operations was $158 million in the third quarter of 2025 as compared to income from operations of $66 million in the third quarter of 2024. The year-over-year decrease was primarily due to a 7% decline in average sales price, particularly for PVC resin, and a 6% decline in sales volume, particularly for chlorine.<\/p>\n Forward-Looking Statements<\/i><\/p>\n 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, global macroeconomic conditions and their effects on us and our customers, the operational reliability of our plants, the scope and duration of disruptions at our facilities, the results of the closure of the Pernis facility and our ability to remove projected annual losses, the success of our cost-reduction efforts and the timing and extent of savings therefrom, our ability to achieve our projected cost savings (including the results of our 2025 cost savings program and our goal of an additional cost savings of $200 million by the end of 2026), our ability to improve margins and earnings in 2026, industrial and manufacturing activity in our target markets, growth in our customers\u2019 businesses and their dependence on our products, our ability to weather economic volatility, home affordability and residential construction activity, product innovations, raw material costs, higher energy prices, our market position and the strength of our brands, our commitment to PEM\u2019s North American Chlorovinyls business and the results of optimization efforts, the benefits of a diversified and integrated business model, our relationships with our customers, our ability to maintain cost advantages and global demand for our products are forward-looking statements.<\/i><\/p>\n 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 imposed on or by foreign jurisdictions; disruptions in global trade and the effect on trading relationships between the United States and other countries; technological developments; information systems failures and cyberattacks; foreign currency exchange risks; our ability to implement our business strategies; and creditworthiness of our customers 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, 2024, which was filed with the Securities and Exchange Commission (SEC) in February 2025.<\/i><\/p>\n Use of Non-GAAP Financial Measures<\/i><\/p>\n This release makes reference to certain “non-GAAP” financial measures, such as EBITDA, free cash flow and other measures that exclude the effects of 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 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 other measures that exclude the effects of 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) EBITDA to net income, income from operations and net cash provided by operating activities, (ii) free cash flow to net cash provided by operating activities and (iii) other measures reflecting adjustments for the effects of Identified Items can be found in the financial schedules at the end of this press release.<\/i><\/p>\n \nAbout Westlake<\/p>\n \nWestlake 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 \u2014 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<\/a>.<\/p>\n\nWestlake Corporation Conference Call Information:<\/p>\n \nA conference call to discuss Westlake Corporation’s third quarter 2025 results will be held Thursday, October 30, 2025 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\/BI407a290bfbf04abdbdcf5bdeb7f15366<\/a>. Once registered, you will receive a phone number and unique PIN number.<\/p>\n\nA 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\/eex75wdd<\/a>.<\/p>\n \n\n | \n | \n | \n | \n\u00a0<\/td>\n<\/tr>\n | \n| \n WESTLAKE CORPORATION<\/b><\/p>\n CONSOLIDATED STATEMENTS OF OPERATIONS<\/b><\/p>\n (Unaudited)<\/b><\/p>\n<\/td>\n<\/tr>\n\n | \n | \n | \n | \n\u00a0<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Three Months Ended September 30,<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Nine Months Ended September 30,<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2024<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2024<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n (in millions of dollars, except per share data and share amounts)<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n \nNet sales<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n2,838<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n3,117<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n8,637<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n9,299<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nCost of sales<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n2,602<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n2,618<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n7,911<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n7,670<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nGross profit<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n236<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n499<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n726<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n1,629<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nSelling, general and administrative expenses<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n228<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n215<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n676<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n648<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nAmortization of intangibles<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n30<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n29<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n91<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n89<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nImpairment of goodwill<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n727<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u2014<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n727<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u2014<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nRestructuring, transaction and integration-related costs<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n17<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n75<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n139<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n83<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nIncome (loss) from operations<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(766<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n180<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(907<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n809<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nInterest expense<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(41<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(39<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(120<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(120<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nOther income, net<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n32<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n44<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n93<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n153<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nIncome (loss) before income taxes<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(775<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n185<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(934<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n842<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nProvision for (benefit from) income taxes<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(3<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n65<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n4<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n214<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nNet income (loss)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(772<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n120<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(938<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n628<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nNet income attributable to noncontrolling interests<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n10<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n12<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n26<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n33<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Net income (loss) attributable to Westlake Corporation<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n $<\/b><\/p>\n<\/td>\n | \n (782<\/b><\/p>\n<\/td>\n | \n )<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n $<\/b><\/p>\n<\/td>\n | \n 108<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n $<\/b><\/p>\n<\/td>\n | \n (964<\/b><\/p>\n<\/td>\n | \n )<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n $<\/b><\/p>\n<\/td>\n | \n 595<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nEarnings (loss) per common share attributable to Westlake Corporation:<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nBasic<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(6.06<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n0.84<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(7.48<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n4.61<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nDiluted<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(6.06<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n0.83<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(7.48<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n4.58<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nWeighted average common shares outstanding:<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nBasic<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n128,251,427<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n128,638,632<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n128,265,950<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n128,525,531<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nDiluted<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n128,251,427<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n129,340,461<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n128,265,950<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n129,237,560<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n<\/table>\n \n\n | \n | \n | \n | \n\u00a0<\/td>\n<\/tr>\n | \n| \n WESTLAKE CORPORATION<\/b><\/p>\n CONDENSED CONSOLIDATED BALANCE SHEETS<\/b><\/p>\n (Unaudited)<\/b><\/p>\n<\/td>\n<\/tr>\n\n | \n | \n | \n | \n\u00a0<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n September 30,
\n<\/b>
2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n December 31,
\n<\/b>
2024<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n (in millions of dollars)<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n ASSETS<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nCurrent assets<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nCash and cash equivalents<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n1,927<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n2,919<\/p>\n<\/td>\n | | <\/tr>\n \n| \n \nAvailable-for-sale securities<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n198<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u2014<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nAccounts receivable, net<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n1,763<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n1,483<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nInventories<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n1,727<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n1,697<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nPrepaid expenses and other current assets<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n136<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n115<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nTotal current assets<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n5,751<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n6,214<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nProperty, plant and equipment, net<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n8,825<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n8,633<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nOther assets, net<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n5,238<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n5,903<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Total assets<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n19,814<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n20,750<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n LIABILITIES AND EQUITY<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nCurrent liabilities (accounts payable and accrued and other liabilities)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n2,147<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n2,213<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nCurrent portion of long-term debt, net<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n750<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n6<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nLong-term debt, net<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n3,906<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n4,556<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nOther liabilities<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n3,073<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n2,932<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nTotal liabilities<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n9,876<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n9,707<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nTotal Westlake Corporation stockholders’ equity<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n9,426<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n10,527<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nNoncontrolling interests<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n512<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n516<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nTotal equity<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n9,938<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n11,043<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Total liabilities and equity<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n19,814<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n20,750<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n<\/table>\n \n\n | \n | \n\u00a0<\/td>\n<\/tr>\n | \n| \n WESTLAKE CORPORATION<\/b><\/p>\n CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS<\/b><\/p>\n (Unaudited)<\/b><\/p>\n<\/td>\n<\/tr>\n\n | \n | \n\u00a0<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Nine Months Ended September 30,<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2024<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n (in millions of dollars)<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n Cash flows from operating activities<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nNet income (loss)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(938<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n628<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nAdjustments to reconcile net income to net cash provided by operating activities<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nDepreciation and amortization<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n881<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n833<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nDeferred income taxes<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n40<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(58<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nNet loss on disposition and others<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n76<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n51<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nImpairment of goodwill<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n727<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u2014<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nOther balance sheet changes<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(546<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(574<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nNet cash provided by operating activities<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n240<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n880<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Cash flows from investing activities<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nAdditions to investments in unconsolidated subsidiaries<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(23<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(24<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nAdditions to property, plant and equipment<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(754<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(723<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nPurchase of available-for-sale securities<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(198<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u2014<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nOther, net<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n7<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n11<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nNet cash used for investing activities<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(968<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(736<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n Cash flows from financing activities<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nDistributions to noncontrolling interests<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(33<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(31<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nDividends paid<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(204<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(197<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nRepayment of senior notes<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u2014<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(300<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nRepurchase of common stock for treasury<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(30<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u2014<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nOther, net<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(18<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n11<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nNet cash used for financing activities<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(285<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(517<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nEffect of exchange rate changes on cash, cash equivalents and restricted cash<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n21<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(15<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nNet decrease in cash, cash equivalents and restricted cash<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(992<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(388<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nCash, cash equivalents and restricted cash at beginning of period<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n2,935<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n3,319<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nCash, cash equivalents and restricted cash at end of period<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n1,943<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n2,931<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n<\/table>\n \n\n | \n | \n | \n | \n\u00a0<\/td>\n<\/tr>\n | \n| \n WESTLAKE CORPORATION<\/b><\/p>\n SEGMENT INFORMATION<\/b><\/p>\n (Unaudited)<\/b><\/p>\n<\/td>\n<\/tr>\n\n | \n | \n | \n | \n\u00a0<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Three Months Ended September 30,<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Nine Months Ended September 30,<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2024<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2024<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n (in millions of dollars)<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n Net external sales<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nHousing and Infrastructure Products<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nHousing Products<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n928<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n937<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n2,746<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n2,826<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nInfrastructure Products<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n163<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n161<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n501<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n510<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nTotal Housing and Infrastructure Products<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n1,091<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n1,098<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n3,247<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n3,336<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nPerformance and Essential Materials<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nPerformance Materials<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n1,010<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n1,164<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n3,088<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n3,505<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nEssential Materials<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n737<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n855<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n2,302<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n2,458<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nTotal Performance and Essential Materials<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n1,747<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n2,019<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n5,390<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n5,963<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nTotal reportable segments and consolidated<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n2,838<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n3,117<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n8,637<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n9,299<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Income (loss) from operations<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nHousing and Infrastructure Products<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n151<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n202<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n521<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n678<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nPerformance and Essential Materials<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(902<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(9<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(1,383<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n170<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nTotal reportable segments<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(751<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n193<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(862<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n848<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nCorporate and other<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(15<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(13<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(45<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(39<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nConsolidated<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(766<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n180<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(907<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n809<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Depreciation and amortization<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nHousing and Infrastructure Products<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n62<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n54<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n170<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n157<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nPerformance and Essential Materials<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n238<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n225<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n701<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n669<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nTotal reportable segments<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n300<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n279<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n871<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n826<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nCorporate and other<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n3<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n2<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n10<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n7<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nConsolidated<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n303<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n281<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n881<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n833<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Other income, net<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nHousing and Infrastructure Products<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n2<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n6<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n2<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n27<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nPerformance and Essential Materials<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n10<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n6<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n23<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n27<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nTotal reportable segments<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n12<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n12<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n25<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n54<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nCorporate and other<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n20<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n32<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n68<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n99<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nConsolidated<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n32<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n44<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n93<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n153<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n<\/table>\n \n\n | \n | \n | \n | \n | \n | \n\u00a0<\/td>\n<\/tr>\n | \n| \n WESTLAKE CORPORATION<\/b><\/p>\n RECONCILIATION OF EBITDA TO NET INCOME (LOSS), INCOME (LOSS) FROM OPERATIONS AND<\/b><\/p>\n NET CASH PROVIDED BY OPERATING ACTIVITIES<\/b><\/p>\n (Unaudited)<\/b><\/p>\n<\/td>\n<\/tr>\n\n | \n | \n | \n | \n | \n | \n\u00a0<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Three Months Ended June 30,<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Three Months Ended September 30,<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Nine Months Ended September 30,<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2024<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2024<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n (in millions of dollars, except percentages)<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n Net cash provided by operating activities<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n135<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n182<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n474<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n240<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n880<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nChanges in operating assets and liabilities and other<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(284<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(895<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(354<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(1,138<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(310<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nDeferred income taxes<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n18<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(59<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u2014<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(40<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n58<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Net income (loss)<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(131<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(772<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n120<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(938<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n628<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nAdd:<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nIdentified Items<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n130<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n744<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n75<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n874<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n75<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Net income (loss) excl. Identified Items<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(1<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(28<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n195<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(64<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n703<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Net income (loss)<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(131<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(772<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n120<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(938<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n628<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nLess:<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nOther income, net<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n24<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n32<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n44<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n93<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n153<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nInterest expense<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(40<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(41<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(39<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(120<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(120<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nProvision for (benefit from) income taxes<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(6<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n3<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(65<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(4<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(214<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n<\/tr>\n | \n| \n Income (loss) from operations<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(109<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(766<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n180<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(907<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n809<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nAdd:<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nIdentified Items<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n130<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n744<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n75<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n874<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n75<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Income (loss) from operations excl. Identified Items<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n21<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(22<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n255<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(33<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n884<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nAdd:<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nDepreciation and amortization<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n295<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n303<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n281<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n881<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n833<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nOther income, net<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n24<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n32<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n44<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n93<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n153<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n EBITDA excl. Identified Items<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n340<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n313<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n580<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n941<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n1,870<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nLess:<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nIdentified Items<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n130<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n744<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n75<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n874<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n75<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n EBITDA<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n210<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(431<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n505<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n67<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n1,795<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nNet external sales<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n2,953<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n2,838<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n3,117<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n8,637<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n9,299<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Operating Income Margin<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(4)%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(27)%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n6%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(11)%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n9%<\/p>\n<\/td>\n | | <\/tr>\n \n| \n Operating income margin excl. Identified Items<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n1%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(1)%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n8%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u2014%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n10%<\/p>\n<\/td>\n | | <\/tr>\n \n| \n EBITDA Margin<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n7%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(15)%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n16%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n1%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n19%<\/p>\n<\/td>\n | | <\/tr>\n \n| \n EBITDA margin excl. Identified Items<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n12%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n11%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n19%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n11%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n20%<\/p>\n<\/td>\n | | <\/tr>\n<\/table>\n\n\n | \n | \n | \n | \n | \n | \n\u00a0<\/td>\n<\/tr>\n | \n| \n WESTLAKE CORPORATION<\/b><\/p>\n RECONCILIATION OF DILUTED EARNINGS (LOSS) PER COMMON SHARE TO DILUTED EARNINGS (LOSS) PER COMMON SHARE EXCLUDING IDENTIFIED ITEM<\/b><\/p>\n (Unaudited)<\/b><\/p>\n<\/td>\n<\/tr>\n\n | \n | \n | \n | \n | \n | \n\u00a0<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Three Months Ended June 30,<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Three Months Ended September 30,<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Nine Months Ended September 30,<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2024<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2024<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n (per share data)<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n Diluted earnings (loss) per common share attributable to Westlake Corporation<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(1.11<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(6.06<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n0.83<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(7.48<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n4.58<\/p>\n<\/td>\n | | <\/tr>\n \n| \n \nAdd:<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nLoss per common share relating to Identified Items<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n1.02<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n5.77<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n0.58<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n6.79<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n0.58<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Diluted earnings (loss) per common share attributable to Westlake Corporation excl. Identified Items<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(0.09<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(0.29<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n1.41<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(0.69<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n5.16<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n<\/table>\n \n\n | \n | \n | \n | \n | \n | \n\u00a0<\/td>\n<\/tr>\n | \n| \n WESTLAKE CORPORATION<\/b><\/p>\n RECONCILIATION OF FREE CASH FLOW TO NET CASH PROVIDED BY OPERATING ACTIVITIES<\/b><\/p>\n (Unaudited)<\/b><\/p>\n<\/td>\n<\/tr>\n\n | \n | \n | \n | \n | \n | \n\u00a0<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Three Months Ended June 30,<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Three Months Ended September 30,<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Nine Months Ended September 30,<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2024<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2024<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n (in millions of dollars)<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n Net cash provided by operating activities<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n135<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n182<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n474<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n240<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n880<\/p>\n<\/td>\n | | <\/tr>\n \n| \n \nLess:<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nAdditions to property, plant and equipment<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n267<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n239<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n220<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n754<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n723<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Free cash flow<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(132<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(57<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n254<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n(514<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n157<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n<\/table>\n \n\n | \n | \n | \n | \n | \n | \n\u00a0<\/td>\n<\/tr>\n | \n| \n WESTLAKE CORPORATION<\/b><\/p>\n RECONCILIATION OF HIP SEGMENT EBITDA TO INCOME FROM OPERATIONS<\/b><\/p>\n (Unaudited)<\/b><\/p>\n<\/td>\n<\/tr>\n\n | \n | \n | \n | \n | \n | \n\u00a0<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Three Months Ended June 30,<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Three Months Ended September 30,<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n Nine Months Ended September 30,<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2024<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2025<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n 2024<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n (in millions of dollars, except percentages)<\/b><\/p>\n<\/td>\n<\/tr>\n\n| \n Housing and Infrastructure Products Segment<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Income from operations<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n222<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n151<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n202<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n521<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n678<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nAdd:<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nDepreciation and amortization<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n55<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n62<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n54<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n170<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n157<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nOther income, net<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n(2<\/p>\n<\/td>\n | \n \n)<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n2<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n6<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n2<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n27<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n EBITDA<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n275<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n215<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n262<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n693<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n862<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n \nNet external sales<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n1,160<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n1,091<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n1,098<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n3,247<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n$<\/p>\n<\/td>\n | \n \n3,336<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n | \n| \n Operating Income Margin<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n19%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n14%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n18%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n16%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n20%<\/p>\n<\/td>\n | | <\/tr>\n \n| \n EBITDA Margin<\/b><\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n24%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n20%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n24%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n21%<\/p>\n<\/td>\n | | \n\n \n\u00a0<\/p>\n<\/td>\n | \n \n\u00a0<\/p>\n<\/td>\n | \n \n26%<\/p>\n<\/td>\n | | <\/tr>\n<\/table>\n | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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