UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File No. 001-32260 Westlake Corporation (Exact name of Registrant as specified in its charter) Delaware 76-0346924 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification Number) 2801 Post Oak Boulevard, Suite 600 Houston, Texas 77056 (Address of principal executive offices, including zip ...

Westlake (WLK) Q2 2025 Earnings Call August 05, 2025 11:00 AM ET Company ParticipantsJohn Zoeller - VP & Head - IR and TreasurerJean-Marc Gilson - President & CEOSteven Bender - EVP & CFOAdam Hamilton - Senior Associate - Equity ResearchJohn Roberts - Managing DirectorVincent Andrews - Managing DirectorFrank Mitsch - PresidentKevin McCarthy - PartnerMichael Sison - Managing DirectorJosh Spector - Executive Director - Chemicals Equity ResearchHassan Ahmed - Co-founder & Head - ResearchDavid Begleiter - Direc ...

Westlake (WLK) Q2 2025 Earnings Call August 05, 2025 11:00 AM ET Speaker0Good morning, ladies and gentlemen. Thank you for standing by. Welcome to the Westlake Corporation Second Quarter twenty twenty five Earnings Conference Call. At this time, all participants are in a listen only mode. After the speakers' remarks, there will be a question and answer session.Please be advised that today's conference is being recorded today, 08/05/2025. I would now like to turn the call over to your first speaker today, Jo ...

Earnings Presentation 2Q 2025 1 Second Quarter 2025 Highlights Solid HIP results provide stability PEM profitability improvement strategy in place 2Q 2025 Financial Results $3.0B Net Sales $340M EBITDA(1,2) $2.3B Cash, Equivalents and Investments(3) (1) Excludes "Identified Items" consisting of $108 million of accrued expenses and $15 million inventory write-off related to the permanent shut down of Westlake's Pernis facility in The Netherlands and $7 million of accrued expenses to temporarily cease operati ...

For the quarter ended June 2025, Westlake Chemical (WLK) reported revenue of $2.95 billion, down 7.9% over the same period last year. EPS came in at -$0.09, compared to $2.40 in the year-ago quarter.The reported revenue compares to the Zacks Consensus Estimate of $3.04 billion, representing a surprise of -2.84%. The company delivered an EPS surprise of -250%, with the consensus EPS estimate being $0.06.While investors scrutinize revenue and earnings changes year-over-year and how they compare with Wall Stre ...

EXHIBIT 99.1 WESTLAKE CORPORATION Contact—(713) 960-9111 Investors—Steve Bender Media—L. Benjamin Ederington Westlake Corporation Reports Second Quarter 2025 Results HOUSTON--(BUSINESS WIRE)--Westlake Corporation (NYSE: WLK) (the "Company" or "Westlake") today announced second quarter 2025 results. SUMMARY FINANCIAL HIGHLIGHTS (in millions of dollars, except per share data and percentages) | | | Three Months Ended June 30, | | Three Months Ended March 31, | | Three Months Ended June 30, | | --- | --- | --- ...

Westlake Corporation manufactures and markets performance and essential materials as well as housing and infrastructure products globally. The company produces and supplies a variety of products such as ethylene, polyethylene, PVC, vinyl intermediates, and fence and decking components.Founded in 1986 and headquartered in Houston, Texas, Westlake also provides consumer and commercial products including landscape edging, home and office matting, and marine dock edging. It offers its products to chemical proce ...

Financial Performance (LTM 1Q 2016) - Westlake Chemical Corporation reported Net Sales of $4335 million[6] - The company's EBITDA was $1217 million[6] - Net Income attributable to Westlake was $623 million[6] - Olefins contributed $822 million to EBITDA, representing 67% of the total[6] - Vinyls contributed $410 million to EBITDA, representing 33% of the total[6] Strategic Advantages and Growth Drivers - The company leverages a strong ethane and other NGL advantage due to fundamental structural advances in supply[13] - Significant product integration allows the company to capture the full value chain[13] - Westlake is well-positioned for continued profitable growth due to its ongoing financial strength and flexibility[13] - Westlake has one of the highest LDPE product mix percentages in North America[30] - Global PVC demand is growing, supporting exports[45]

Financial Performance - Westlake Chemical Corporation reported net sales of $6.936 billion and EBITDA of $1.291 billion [4] - Net income attributable to Westlake Chemical Corporation was $456 million [4] - Olefins contributed $750 million to EBITDA, representing 53% of the total, while Vinyls contributed $658 million, accounting for 47% [4] Strategic Acquisitions and Synergies - The acquisition of Axiall has created a diverse, vertically-integrated chemicals leader, enhancing margin stability and growth opportunities [7] - Westlake expects to realize $120 million in synergy savings and cost reductions in 2017, with a total of $200 million expected by 2018 [7] Ethylene and Feedstock Advantages - Westlake has a short position in ethylene, providing cost advantages in the coming years due to its all-ethane feedstock capability [11, 12] - The company's ethylene plants are fully capable of using ethane and have some NGL flexibility, with the European business (Vinnolit) providing further feedstock diversification [22] Polyethylene Product Mix - Westlake has an advantaged polyethylene product mix, with LDPE accounting for 58% and LLDPE for 42% of its capacity [24] - The company focuses on LDPE, which has a higher average margin advantage compared to other PE grades [24] PVC and Global Presence - The Axiall acquisition has given Westlake a global PVC presence with facilities in North America, Europe, and Asia [36] - Westlake/Vinnolit is a leading specialty PVC producer with a global capacity of approximately 4,000 KMT in 2016 [48]

Financial Performance - Westlake's Net Sales reached $7766 million[5] - The company's EBITDA was $1631 million[5] - Net Income attributable to Westlake was $601 million[5] - Olefins EBITDA was $796 million, accounting for 47% of the total[5] - Vinyls EBITDA was $915 million, representing 53% of the total[5] Strategic Initiatives and Growth - The acquisition of Axiall has created a diverse, vertically-integrated chemicals leader[8] - Westlake expects to realize $120 million in synergy savings and cost reductions in 2017 and a total of $200 million by 2018 from the Axiall acquisition[8] - Westlake has a polyethylene capacity of 2600 million lbs[13] Market Position and Advantages - Westlake is the second largest producer of PVC in North America and the third largest globally[47] - Westlake is the third largest producer of Chlor-Alkali in North America and the third largest globally[47] - Westlake has one of the highest LDPE product mix percentages in North America[29]