IR Contacts

Dave Stasse
Vice President of Treasury and Corporate Finance
Office: 610-240-3207
dstasse@trinseo.com

Curt Brooks
Manager Investor Relations & Treasury
Office:  610-240-3211
cbrooks@trinseo.com

Donna St. Germain
Corporate and Investor Communications Director
Office: 610-240-3307
investorrelations@trinseo.com

stgermain@trinseo.com

Transfer Agent
American Stock Transfer & Trust Company, LLC
Website: www.amstock.com
Phone: (800) 937-5449 or (718) 921-8124
Address: Operations Center
6201 15th Avenue
Brooklyn, NY 11219