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… Array … Westlake Chemical Acquires CertainTeed's PVC Pipe, Fittings and …
… Array … Westlake Chemical Celebrates 20th Anniversary …
… Array … Westlake Chemical Files Definitive Proxy Statement in Connection with …
… Array … Westlake Chemical Reports First Quarter Results …
… Westlake Chemical Announces Optional Redemption of $450 Million of …
… Array … Westlake Chemical Partners LP Announces Fourth Quarter Distribution …
… Array … Westlake Chemical to Refinance Debt …
… Array … Westlake Chemical Corporation Declares Quarterly Dividend …
… Array … Westlake Chemical Reelects Directors, Declares Quarterly Dividend of 5 …
… Westlake Chemical Announces Expansion of Existing Share Repurchase …