Calgon Carbon was listed on the New York Stock Exchange in 1991, and throughout the 1990s it bought a number of subsidiaries, with Calgon Carbon's executive Colin Bailey overseeing many of the acquisitions. In 1996 it purchased the various operations of Vulcan Peroxidation Systems in Arizona and Solarchem Enterprises in Ontario, both of which produce perox-pure. Also that year Calgon Carbon acquired Advanced Separation Technologies in Florida and Charcoal Cloth (International) in Britain, the latter of which manufactures activated carbon in cloth form.