HOUSTON–(BUSINESS WIRE)–Westlake Corporation (NYSE: WLK) (the “Company” or “Westlake”) today announced fourth quarter and full year 2025 results. SUMMARY FINANCIAL HIGHLIGHTS ($ in millions except per share data and percentages)           Three Months Ended   Twelve Months Ended     December 31,   September 30,   December 31,   December 31,     2025   2025   2024   2025   2024 Westlake Corporation                               Net sales   $ 2,533     $ 2,838     $ 2,843     $ 11,170     $ 12,