Westlake appoints Brian Powers as Performance & Essential Materials Segment Head; Buesinger becomes advisor

WESTLAKE CORP

Robert F. Buesinger steps down as EVP & Segment Head; transitions to Special Advisor to President effective April 2, 2026.
Brian Powers appointed Senior Vice President, Performance & Essential Materials Segment Head, effective April 2, 2026.
Succession follows Buesinger's planned retirement; no departure reason beyond retirement mentioned.

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