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… Array … Westlake Chemical Acquires CertainTeed's PVC Pipe, Fittings …
… Array … Westlake Appoints Bender as Vice President and Treasurer …
… Array … Westlake Chemical to Construct Chlor Alkali Plant; New unit …
… Westlake Announces Guidance for Second Quarter and Full-Year …
… Array … Westlake Chemical to Redeem Notes …
… Array … Westlake Chemical Corporation Announces Exercise of …
… Array … Westlake Chemical Partners Announce Fourth Quarter and Full …
… Array … Westlake Chemical Reports First Quarter Results …
… Array … Westlake Chemical Partners Announce Third Quarter 2015 …
… Array … Westlake Chemical Partners LP Announces Third Quarter …