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Trinseo Receives Mass Balance Certification for its Styrene

Certificate Allows Validation of Sustainable Materials

Berwyn, PA - Wednesday, January 27, 2021

Trinseo (NYSE: TSE), a global materials company and manufacturer of plastics, latex binders and synthetic rubber announces that its feedstocks plant in Terneuzen, The Netherlands received an International Sustainability & Carbon Certification (ISCC) for its mass balance processes used to validate its bio-based styrene as sustainable. The Terneuzen plant joins three other Trinseo sites that produce sustainable materials in being certified – polystyrene at Tessenderlo, Belgium; polycarbonate at Stade, Germany; and synthetic rubber at Schkopau, Germany. 

“Trinseo’s ethylbenzene styrene monomer plant in Terneuzen received ISCC+ certification in December 2020 and already has produced its first batch of bio-styrene,” said Nina Karabash, Global Business Director, Feedstocks. “This is an important step for our business, as customers are constantly looking for ways to add renewable raw materials along the value chain to support sustainability goals.”

Styrene is used to produce resins such as Polystyrene (PS), Acrylonitrile Butadiene Styrene (ABS), Styrene Acrylonitrile (SAN), Latex Binders, and Synthetic rubber, all which Trinseo manufactures. Trinseo’s ISCC designation at Terneuzen allows the company to track both bio and recycled feedstocks at the facility and provide customers with sustainability declarations as evidence of sustainable content claims.

The percentage of bio content in Trinseo’s styrene can vary based on the composition of the feedstocks. For example, the first batch of bio-styrene produced had 75 percent bio-content and was made from 100 percent bio-benzene blended with ethylene coming from fossil-based naphtha. Trinseo uses second generation bio waste ensuring that the bio-source for the styrene does not compete with food chains.

Biomaterials allow manufacturers to reduce fossil fuel use either directly or through material reuse, thereby promoting a circular economy. The mass balance approach is a chain of custody method to track sustainably advantaged materials through complex value chains to measure sustainable content in finished goods.

For Trinseo, mass balance tracking is part of its effort to meet its 2030 Sustainability Goals. These goals include evolving to a materials portfolio of 40 percent sustainably advantaged materials by 2030.

About Trinseo

Trinseo (NYSE: TSE), a specialty material solutions provider, partners with companies to bring ideas to life in an imaginative, smart, and sustainability-focused manner by combining its premier expertise, forward-looking innovations and best-in-class materials to unlock value for companies and consumers.

From design to manufacturing, Trinseo taps into decades of experience in diverse material solutions to address customers’ unique challenges in a wide range of industries, including consumer goods, mobility, building and construction, and medical.

Trinseo’s approximately 3,400 employees bring endless creativity to reimagining the possibilities with clients all over the world from the company’s locations in North America, Europe, and Asia Pacific. Trinseo reported net sales of approximately $4.8 billion in 2021. Discover more by visiting www.trinseo.com and connecting with Trinseo on LinkedIn, Twitter, Facebook and WeChat.

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This press release may contain forward-looking statements including, without limitation, statements concerning plans, objectives, goals, projections, strategies, future events or performance, and underlying assumptions and other statements, which are not statements of historical facts or guarantees or assurances of future performance. Forward-looking statements may be identified by the use of words like "expect," "anticipate," "intend," "forecast," "outlook," "will," "may," "might," "see," "tend," "assume," "potential," "likely," "target," "plan," "contemplate," "seek," "attempt," "should," "could," "would" or expressions of similar meaning. Forward-looking statements reflect management’s evaluation of information currently available and are based on our current expectations and assumptions regarding our business, the economy and other future conditions. Because forward-looking statements relate to the future, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict. Factors that might cause future results to differ from those expressed by the forward-looking statements include, but are not limited to, our ability to successfully execute our transformation strategy and business strategy; our ability to integrate acquired businesses; global supply chain volatility, increased costs or disruption in the supply of raw materials or increased costs for transportation of our products; the nature of investment opportunities presented to the Company from time to time; and those factors discussed in our Annual Report on Form 10-K, under Part I, Item 1A —"Risk Factors" and elsewhere in our other reports, filings and furnishings made with the U.S. Securities and Exchange Commission from time to time. As a result of these or other factors, our actual results may differ materially from those contemplated by the forward-looking statements. Therefore, we caution you against relying on any of these forward-looking statements. The forward-looking statements included in this press release are made only as of the date hereof. We undertake no obligation to publicly update or revise any forward-looking statement as a result of new information, future events or otherwise, except as otherwise required by law.

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