Price Increase for CoREZYN® and Silmar® Products

(St. Paul, MN – April 30, 2007) Steve Wetzel, National Sales Manager, and Daryl Francis, Business Manager West, announced today that Interplastic Corporation’s Thermoset Resins Division is raising the price of CoREZYN and Silmar brand products $0.05 per pound for shipments on or after May 25, 2007. This includes all vinyl ester, polyester, specialty resins, gel coats, colorants, and putties.

“Key raw materials used in the manufacture of polyester and vinyl ester resins have escalated sharply over the past two months. Planned and unplanned outages have restricted supply, while strong demand worldwide for many feedstocks has surpassed existing manufacturing capabilities,” explains Wetzel. “In addition, there have been force majeure declarations that are causing shortages and very tight supply on some materials.” Wetzel continued.

Strong demand in Asian markets for a wide range of products will continue, and put added pressure on benzene and other key petrochemicals. Interplastic appreciates your continued support as we work through the changing dynamics in the marketplace.

Interplastic’s Thermoset Resins Division is the manufacturer of CoREZYN and Silmar brand unsaturated polyester, vinyl ester, specialty resins, gel coats, and colorants for the cast polymer, solid surface and composites industries. All CoREZYN and Silmar products are sold direct and through Interplastic’s extensive network of distributors in North America and around the world. Interplastic Corporation’s Thermoset Resins Division is ISO 9001:2000 certified.

For more information contact:

Bobbi J. Jensen
Marketing Communications Specialist
Interplastic Corporation
(651) 481-6860
bjensen@interplastic.com