AmSty Announces Polystyrene Price Increase Effective August 1, 2017

Americas Styrenics LLC (AmSty) announces an increase in the transaction price of all grades of polystyrene produced by the Company of $0.02/lb., effective August 1, 2017. This price supersedes all other previously announced price changes.

About AmSty

AmSty is one of the largest integrated producers of polystyrene and styrene monomer in the Western Hemisphere, offering solutions and services to customers in a variety of markets throughout the Americas. The company is a joint venture equally owned by Chevron Phillips Chemical Company LP and Trinseo LLC, and is headquartered in The Woodlands, Texas. For more information about AmSty, visit www.amsty.com.