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Trinseo ISO Quality Standards

Trinseo utilizes ISO quality systems from the International Standards Organization (ISO). ISO surveillance visits are conducted twice a year – with certification renewal every three years – to ensure continual improvement. Our system uses a Plan-Do-Check-Act cycle. 

Many of Trinseo’s manufacturing facilities and plant sites have received ISO certificates and other quality certificates. A selection of these is available here. Additional certificates and/or newer versions of these certificates may be available from Trinseo’s Customer Information Group.

ISO 9001

Corporate ISO Certifications
Valid Through: September 14, 2018

ISO/TS-16949

Hsinchu Compounding
Valid Through: September 14, 2018

Midland Styrene Polymers
Valid Through: June 15, 2018

Stade Polycarbonate & Compounding
Valid Through: February 8, 2018

Schkopau Synthetic Rubber
Valid Through: August 17, 2018

Terneuzen Compounding

Valid Through: March 14, 2018

Terneuzen Styrenic Polymers
Valid ThroughFebruary 28, 2018



ISO 13485

Hsinchu Compounding
Valid Date: Under Development

PolyOne Clinton
Valid Date: Under Development

Terneuzen Compounding
Valid Date: Under Development

SSPC Polycarbonate & Compounding
Valid Date: Under Development

Stade Polycarbonate & Compounding
Valid Date: Under Development