Trillium CNG™ and AMP Americas Announce Ambitious Joint Venture to Build Compressed Natural Gas (CNG) Stations Across the US

CHICAGO, July 23, 2012 /PRNewswire/ -- Trillium CNG, a business unit of Integrys Energy Group (NYSE: TEG), and AMP Americas announced today a joint venture, AMP Trillium,  focused on building a network of CNG stations across  the US. Initially, AMP Trillium will construct...