Corporate News Corporate News Corporate News Trinseo Announces Sale of Mexico Manufacturing Facility to Plaskolite CORPORATE NEWS Trinseo’s Depolymerization Plant Earns ISO 9001 Certification February 19, 2026 CORPORATE NEWS Celebrating Trinseo’s 2025 Triple Zero Recipients January 12, 2026 CORPORATE NEWS Trinseo Presents at Advanced Recycling Conference 2025 December 17, 2025