Core Viewpoint - Westlake Corporation reported disappointing earnings for Q4 2025, with a significant GAAP EPS loss, but adjusted EPS exceeded market expectations, indicating some resilience despite revenue declines [1][5]. Financial Performance - The company reported a GAAP EPS of -$4.22 for Q4 2025, while the adjusted EPS was -$0.25, surpassing the consensus estimate of -$1.44 [1][5]. - Revenue for the period was $2.53 billion, falling short of the estimated $2.57 billion, and represents a decrease from $2.8 billion in both the previous quarter and the same quarter of the previous year [2][5]. - For the full year 2025, net sales totaled $11.2 billion, down from $12.5 billion in 2024, indicating a consistent decline in sales performance [2]. Valuation Metrics - Westlake's trailing twelve-month (TTM) P/E ratio stands at 69.52, reflecting the market's valuation of its positive full-year earnings of $1.22 per share [3]. - The price-to-sales ratio is 1.04, indicating that investors are willing to pay $1.04 for every dollar of sales [3]. - The enterprise value to sales ratio is 1.32, and the enterprise value to EBITDA ratio is 31.41, reflecting the company's valuation relative to its sales and cash flow generation [3]. Financial Ratios - The TTM earnings yield is approximately 1.44%, highlighting the company's positive full-year earnings situation [4]. - The debt-to-equity ratio is 0.54, indicating a moderate approach to leveraging equity [4][5]. - The current ratio is 1.99, suggesting adequate liquidity and the ability to cover short-term liabilities with current assets [4].

Financial Data and Key Metrics Changes - In Q4 2025, Westlake reported a net loss of $33 million, or a loss of $0.25 per share, on sales of $2.5 billion, which was a $5 million lower loss compared to Q3 2025 due to lower average sales prices and sales volumes [14][15] - For the full year 2025, net loss was $116 million, with EBITDA of $1.1 billion, and total sales of $11.2 billion, reflecting an 8% decline year-over-year [15][16] - The company achieved $170 million in structural cost reductions in 2025, with an additional $60 million in Q4 alone [15][21] Business Line Data and Key Metrics Changes - The Housing and Infrastructure Products (HIP) segment experienced an 8% decline in sales year-over-year in Q4, primarily due to decreased sales volumes in PVC compounds and exterior building products, although municipal pipe sales remained strong [17][19] - The Performance and Essential Materials (PEM) segment's Q4 EBITDA was $45 million, down from $90 million in Q3, driven by a 5% decline in average sales prices and a 2% decrease in sales volume [19][20] - For the full year 2025, PEM's EBITDA was $267 million, significantly lower than in 2024 due to higher feedstock and energy costs, as well as lower global sales prices [20] Market Data and Key Metrics Changes - The company noted global overcapacity in certain products, particularly in polyethylene and core vinyls, which pressured sales prices and margins throughout 2025 [20] - The forecast for housing starts in 2026 is between 1.3 million and 1.4 million, with expectations for improved home affordability due to lower interest rates [22] Company Strategy and Development Direction - Westlake is implementing a three-pillar strategy expected to contribute $600 million in earnings improvement in 2026, focusing on footprint optimization, plant reliability, and structural cost reductions [10][12] - The company has closed several higher-cost PEM assets and is focusing on improving operational reliability to enhance profitability [11][20] - The acquisition of ACI is expected to expand product offerings and contribute positively to revenue growth in the HIP segment [22][86] Management's Comments on Operating Environment and Future Outlook - Management expressed cautious optimism for 2026, citing signs of improvement in global industrial and manufacturing activity and a rebound from seasonal lows [24][25] - The company aims to reduce carbon emissions intensity by 20% by 2030, having already achieved its previous emissions reduction goal six years early [25] - Management emphasized the importance of a diversified portfolio and a vertically integrated business model to navigate market challenges [25][26] Other Important Information - The Chief Financial Officer, Steve Bender, announced plans to retire later in 2026, with gratitude expressed for his contributions to the company [13][14] - Cash and securities as of December 31, 2025, were $2.9 billion, with total debt at $5.6 billion, indicating a well-positioned balance sheet [20][21] Q&A Session Summary Question: Can you break down the PEM business in Q4 and its performance? - The performance was impacted by the closure of core vinyl plants, leading to a reduction in losses and a proactive approach in cost reduction initiatives [30][32] Question: What are the expectations around polyethylene price increases? - There has been some improvement in demand and price action, with announced price increases expected to offset previous market adjustments [33][34] Question: What is the outlook for chlorovinyls and the PVC chain in 2026? - There is cautious optimism with some restocking observed, but visibility remains limited [38][39] Question: How will the $600 million in cost savings be realized throughout the year? - The savings will be realized through structural cost reductions and improved reliability, with benefits expected to accrue throughout 2026 [44][46] Question: What are the expectations for free cash flow in 2026? - The objective is to generate strong cash flows, with a focus on cost savings and improved reliability [58][60] Question: How does the company view the competitive landscape following recent changes in ownership of a competitor? - No significant changes in competition have been observed at this stage [67] Question: What is the outlook for domestic merchant chlorine? - Weakness in chlorine demand has been noted, driven by reduced demand in construction materials and water treatment [68][69] Question: How do the benefits from plant reliability and cost reduction relate to EBITDA? - The benefits will start to materialize in 2026, with a focus on cost initiatives and reduced planned outages [74][75]

Financial Data and Key Metrics Changes - In Q4 2025, the company reported a net loss of $33 million, or a loss of $0.25 per share, on sales of $2.5 billion, which was a $5 million lower loss compared to Q3 2025 [14][15] - For the full year 2025, the company reported a net loss of $116 million and EBITDA of $1.1 billion, with total sales declining 8% to $11.2 billion compared to 2024 [15][16] - The company achieved $170 million in structural cost reductions in 2025, with an additional $60 million in Q4 alone [15][21] Business Line Data and Key Metrics Changes - The Housing and Infrastructure Products (HIP) segment saw an 8% decline in sales year-over-year in Q4, primarily due to decreased sales volumes in PVC compounds and exterior building products [17][19] - The Performance and Essential Materials (PEM) segment's Q4 EBITDA was $45 million, down from $90 million in Q3, driven by a 5% decline in average sales prices and a 2% decrease in sales volume [19][20] - For the full year 2025, HIP's EBITDA was $839 million with a margin of 20%, while PEM's EBITDA was $267 million, significantly impacted by higher feedstock costs and global overcapacity [17][20] Market Data and Key Metrics Changes - The company noted a decline in new housing construction activity in North America, which negatively affected sales in the HIP segment [9][16] - Global overcapacity in certain products continued to exert downward pressure on sales prices in the PEM segment, leading to margin compression [10][20] - The company expects housing starts in 2026 to range between 1.3 million and 1.4 million, with improved home affordability due to lower interest rates [22][24] Company Strategy and Development Direction - The company is executing a three-pillar strategy aimed at achieving $600 million in earnings improvement in 2026 through footprint optimization, improved plant reliability, and additional cost reductions [10][12][21] - The company has closed several higher-cost PEM assets to reduce exposure to low-priced export markets, which is expected to yield a $100 million annual EBITDA benefit starting in 2026 [20][21] - The company remains focused on value creation and is strategically deploying its balance sheet to enhance long-term shareholder value [21][25] Management's Comments on Operating Environment and Future Outlook - Management expressed cautious optimism regarding signs of improvement in global industrial and manufacturing activity, with expectations for sales volume growth in 2026 [24][26] - The company has achieved its carbon emissions reduction goal six years early and continues to prioritize sustainability and environmental stewardship [25] - Management highlighted the importance of product innovation and the recent acquisition of ACI in driving future growth in the HIP segment [22][25][86] Other Important Information - The company announced the planned retirement of its long-serving CFO, Steve Bender, later in 2026 [13][14] - The company maintains a strong balance sheet with $2.9 billion in cash and securities and total debt of $5.6 billion [20][21] Q&A Session Summary Question: Can you break down the PEM business in Q4 and its performance? - Management noted that the beat in PEM was due to proactive steps taken in their three-pillar initiative, including the removal of losses from shuttered assets and cost reduction initiatives [30][32] Question: What are the expectations around polyethylene price increases? - Management indicated some improvement in demand and price action, with announced price increases expected to offset previous market adjustments [33][34] Question: What is the outlook for chlorovinyls and PVC chain in 2026? - Management remains cautiously optimistic, noting some restocking and price improvements, but acknowledges ongoing structural supply issues [38][39] Question: How will the $600 million in cost savings be realized throughout the year? - Management explained that savings from actions taken in 2025 will continue into 2026, with expectations for structural cost reductions and improved reliability [44][46] Question: What is the expected free cash flow for 2026? - Management aims to generate strong cash flows and has reduced capital expenditures for 2026, focusing on driving free cash flow across the business [58][60] Question: How does the company view the competitive landscape and potential tariff impacts? - Management stated that the impact of tariffs has been minimal due to USMCA rules, and they do not foresee significant changes in competition from OxyChem [62][68] Question: What are the opportunities in PVC volume for 2026? - Management expects growth in domestic demand for PVC, driven by construction materials, while also noting a cautious outlook on export volumes [76][78]

Financial Data and Key Metrics Changes - In Q4 2025, Westlake reported a net loss of $33 million, or a loss of $0.25 per share, on sales of $2.5 billion, which was a $5 million lower loss compared to Q3 2025 due to lower average sales prices and sales volumes [12][13] - For the full year 2025, the company reported a net loss of $116 million and EBITDA of $1.1 billion, with total sales of $11.2 billion, reflecting an 8% decline compared to 2024 [13][14] Business Line Data and Key Metrics Changes - The Housing and Infrastructure Products (HIP) segment experienced an 8% decline in sales year-over-year in Q4 2025, primarily due to decreased sales volumes in PVC compounds and exterior building products, although municipal pipe sales volumes remained strong [16][18] - The Performance and Essential Materials (PEM) segment's Q4 EBITDA was $45 million, down from $90 million in Q3 2025, driven by a 5% decline in average sales prices and a 2% decrease in sales volume [17][18] Market Data and Key Metrics Changes - The company noted that global overcapacity in certain products continued to exert downward pressure on sales prices, particularly in the PEM segment, leading to a sharp decline in profitability compared to historical levels [9][19] - The company expects housing starts in 2026 to range between 1.3 million and 1.4 million, with improved home affordability due to lower interest rates [21][22] Company Strategy and Development Direction - Westlake is implementing a three-pillar strategy aimed at achieving $600 million in earnings improvement in 2026 through cost reductions, plant reliability improvements, and footprint optimization [7][10][20] - The company has taken decisive actions to close higher-cost PEM assets and improve operational reliability, which are expected to enhance financial performance in a competitive global marketplace [10][11][24] Management's Comments on Operating Environment and Future Outlook - Management expressed cautious optimism regarding a rebound in demand and sales volume growth in 2026, supported by signs of improvement in global industrial and manufacturing activity [24][25] - The company has achieved its carbon emissions reduction goal six years ahead of schedule, reflecting its commitment to sustainability and environmental stewardship [25] Other Important Information - The company announced that its long-serving CFO, Steve Bender, plans to retire later in 2026, marking a significant transition in leadership [11][12] - Westlake's balance sheet remains strong, with cash and securities totaling $2.9 billion and total debt of $5.6 billion as of December 31, 2025 [19][20] Q&A Session Summary Question: Can you break down the PEM business in Q4 and compare it to previous announcements? - Management noted that the beat was due to proactive steps in their three-pillar initiative, which included removing losses from shuttered assets and initiating cost reduction measures [31][32] Question: What are your expectations around polyethylene price increases? - Management indicated that there has been some improvement in demand and price action, with announced price increases expected to offset previous market adjustments [34] Question: How do you view the chlorovinyls and PVC chain outlook for 2026? - Management remains cautiously optimistic, noting some restocking and price improvements, but acknowledges ongoing structural supply issues [38] Question: Can you clarify the guidance for HIP and its impact on margins? - The guidance reflects expected housing starts similar to 2025, with product mix potentially impacting overall margins [40] Question: What is the expected contribution from the $600 million in cost savings? - Management expects these savings to be realized throughout 2026, driven by actions taken in 2025 and improved operational reliability [44][45] Question: How do you assess the market balance and pricing for caustic soda? - Management reported some price traction in caustic soda, with recent price announcements indicating positive demand signals [97]

Earnings Presentation 4Q and Full Year 2025 1 Fourth Quarter and Full Year 2025 Highlights Profitability Improvement Plan expected to deliver $600M EBITDA benefit in 2026 $2.5B 11% decrease QoQ $196M EBITDA(1,2) 37% decrease QoQ (2) $225M Net Cash Provided by Operating Activities $11.2B Net Sales 8% decrease YoY $1.1B EBITDA(1,2) 50% decrease YoY(2) $465M Net Cash Provided by Operating Activities 4Q 2025 Financial Results FY 2025 Financial Results (1) Reconciliation of EBITDA excl. Identified Item to Net In ...

Westlake (WLK) reported $2.53 billion in revenue for the quarter ended December 2025, representing a year-over-year decline of 10.9%. EPS of -$0.25 for the same period compares to $0.06 a year ago.The reported revenue compares to the Zacks Consensus Estimate of $2.57 billion, representing a surprise of -1.34%. The company delivered an EPS surprise of +82.59%, with the consensus EPS estimate being -$1.44.While investors closely watch year-over-year changes in headline numbers -- revenue and earnings -- and h ...

Westlake (WLK) came out with a quarterly loss of $0.25 per share versus the Zacks Consensus Estimate of a loss of $1.44. This compares to earnings of $0.06 per share a year ago. These figures are adjusted for non-recurring items.This quarterly report represents an earnings surprise of +82.59%. A quarter ago, it was expected that this chemical company would post earnings of $0.18 per share when it actually produced a loss of $0.29, delivering a surprise of -261.11%.Over the last four quarters, the company ha ...

Core Insights - Westlake Corporation (WLK) has expanded its epoxy distribution partnership with Brenntag into India, enhancing its presence in the Asia-Pacific region [1][8] - The partnership aims to improve product availability, supply chain efficiency, and provide localized technical support to customers [2] - Westlake is leveraging Brenntag's established infrastructure and customer network to capitalize on India's infrastructure development and industrial growth [3] Company Performance - WLK's shares have decreased by 17% over the past year, while the industry has seen a rise of 4.2% [5]

EXHIBIT 99.1 WESTLAKE CORPORATION Contact—(713) 960-9111 Investors—Steve Bender Media—L. Benjamin Ederington Westlake Corporation Reports Fourth Quarter and Full Year 2025 Results • Meaningful actions taken in 2025 to optimize footprint, improve plant reliability, and structurally reduce costs expected to provide earnings improvement in 2026 HOUSTON--(BUSINESS WIRE)--Westlake Corporation (NYSE: WLK) (the "Company" or "Westlake") today announced fourth quarter and full year 2025 results. i SUMMARY FINANCIAL ...

HOUSTON--(BUSINESS WIRE)--Westlake Corporation (NYSE: WLK) announced that Mr. Bhavesh V. "Bob†Patel and Mr. Jean-Marc Gilson, the President and Chief Executive Officer of the Company, have been elected to the company's board of directors, effective February 20, 2026. "We are very pleased to welcome Bob to our board,†said Westlake Corporation Executive Chairman Albert Chao. "He brings a wealth of experience and in-depth knowledge of the chemicals and building materials industries and adds to t. ...