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,  2025   Three Months  Ended March

HOUSTON--(BUSINESS WIRE)-- Westlake Corporation (NYSE: WLK) (the "Company" or "Westlake") today announced third quarter 2025 results. SUMMARY FINANCIAL HIGHLIGHTS (in millions of dollars, except per share data and percentages)                   Three Months  Ended  September 30,  2025   Three

HOUSTON --(BUSINESS WIRE)--Nov. 4, 2025-- Westlake Corporation (NYSE: WLK) (“Westlake”) announced today the commencement of a cash tender offer to purchase (the “Offer”) any and all of the outstanding 3.600% Senior Notes due 2026 (the “Notes”) as set forth in the table below.

HOUSTON --(BUSINESS WIRE)--Nov. 4, 2025-- Westlake Corporation (NYSE: WLK) (“Westlake”) announced today the commencement of an underwritten public offering, subject to market and other conditions, of senior unsecured notes (the “Notes”) under its existing shelf registration statement.

HOUSTON --(BUSINESS WIRE)--Nov. 4, 2025-- Westlake Corporation (NYSE: WLK) (“Westlake”) announced today that it has priced its previously announced underwritten public offering of $600,000,000 aggregate principal amount of senior unsecured notes due 2035 (the “2035 Notes”) and $600,000,000

HOUSTON --(BUSINESS WIRE)--Nov. 6, 2025-- Westlake Corporation (NYSE: WLK) announced that Westlake Polyethylene’s LDPE Sulphur, Louisiana manufacturing site has attained the globally-recognized International Sustainability & Carbon Certification (ISCC) PLUS certification.

HOUSTON --(BUSINESS WIRE)--Nov. 10, 2025-- Westlake Corporation (NYSE: WLK) (“Westlake”) today announced the pricing of its cash tender offer to purchase (the “Offer”) any and all of the outstanding 3.600% Senior Notes due 2026 (the “Notes”) on the terms set forth in the table below.

HOUSTON --(BUSINESS WIRE)--Nov. 10, 2025-- Westlake Corporation (NYSE: WLK) (“Westlake”) today announced the expiration and results of its cash tender offer to purchase (the “Offer”) any and all of the outstanding 3.600% Senior Notes due 2026 (the “Notes”).

$0.53 per share dividend declared payable on December 11, 2025 HOUSTON --(BUSINESS WIRE)--Nov. 14, 2025-- The Board of Directors of Westlake Corporation (NYSE: WLK) today declared a regular dividend distribution of $0.53 per share for the third quarter of 2025.

HOUSTON --(BUSINESS WIRE)--Nov. 24, 2025-- Westlake Corporation (NYSE: WLK) today released its 2024 Sustainability Report , marking the company’s eighth consecutive annual update on its voluntary sustainability initiatives and ongoing operational improvements.