(Schenectady, NY) December 14 , 2007. SI Group Inc. has again felt the continued escalation of DIB, formaldehyde and other key raw materials used in the manufacture of our products. This coupled with energy, packaging, freight fuel surcharges and associated manufacturing costs, SI Group Inc. is announcing a price increase of US$0.20/kg to all our customers effective January 1, 2008.

SI Group is the leading innovator in phenolic resin technology for the tire industry. SI Group is a global chemical manufacturer with over 20 operations in 13 countries. For more information visit www.siigroup.com .