NEWS RELEASE

Price Increase Notice

SCHENECTADY, NY – November 1, 2009 - SI Group, Inc. is announcing a price increase on all Para Tertiary Butyl Phenol and Para Tertiary Octyl Phenol based resins effective October 15, 2009. This increase is due to a change in the economics of Isobutylene (IB) and Di-Isobutylene (DIB). North American IB and DIB producers have been impacted by changes in their supply chains, including the bankruptcy of a key feedstock supplier. SI Group has worked diligently to mitigate the effects of these changes by securing supply positions with IB and DIB vendors.

SI Group is also announcing a price increase on Nonylphenol and Amylphenol based resins effective October 15, 2009, due to significant olefin cost changes.

About SI Group

SI Group is a family-owned company founded in 1906 and headquartered in Schenectady, New York. A leading global manufacturer of alkylphenols, phenolic resins and other chemical intermediates, SI Group has over 19 operations in 13 countries around the world. For more information about SI Group, visit www.siigroup.com.

# # #