In a major step forward for sustainable manufacturing in the plastics industry, Trinseo’s facilities in Midland, Michigan, and Louisville, Kentucky, have earned Operation Clean Sweep (OCS) Blue Verification—making them the company’s first U.S. sites to achieve this distinction.

The recognition underscores Trinseo’s commitment to preventing plastic resin loss and strengthening environmental stewardship across its global operations.

OCS Blue Verified status signifies that a facility has successfully implemented controls and best practices to prevent plastic pellet, flake and powder loss into the environment.

Both the Midland and Louisville teams have been working diligently toward this achievement over the past several years. Building on Trinseo’s long-standing participation in the OCS program, the facilities enhanced their housekeeping and pellet collection practices, introduced new containment systems and improved filtration to further reduce potential environmental impact.

“Achieving OCS Blue Verification reflects the dedication of our site teams and reinforces Trinseo’s broader commitment to sustainability and responsible operations,” said Melissa Kirkland, Trinseo’s Global EH&S Director. “Through continuous improvement and collaboration, we are helping to build a more sustainable future for the plastics industry.”

While OCS Blue is a US-based program, Trinseo has been actively engaged with OCS worldwide for many years.