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History and Timeline of Activated Carbon Giant <br />Page 3 of 6 <br />I <br />1965 <br />Pittsburgh Activated Carbon Company <br />(formerly Pittsburgh Coke & Chemical) <br />is acquired by Calgon Corporation. H <br />1968 <br />Calgon Corporation acquired by Merck <br />and Co., Inc. <br />1978 <br />A joint venture is formed with Mitsui <br />Chemicals, Inc. and Mitsui & Co., Ltd. <br />1987 <br />Calgon Carbon completes initial public <br />offering of common stock. <br />Virginia -American Water Co., a <br />subsidiary of the American Water <br />Works Service Company, setting a new <br />benchmark for drinking water quality. <br />1967 <br />Calgon Corporation is reorganized into <br />six autonomous divisions, including the <br />04 Pittsburgh Activated Carbon Company, <br />responsible for its own marketing and <br />manufacturing. <br />H 1970 <br />Chemviron, S.A, headquartered in <br />Brussels, is established to market water <br />pollution control systems, products and <br />engineering services in Europe. <br />/e 1985 <br />Calgon Carbon, a wholly -owned <br />subsidiary of Merck and Co., Inc., is <br />04 acquired by its management through a <br />leveraged buyout. <br />H 1991 <br />Calgon Carbon is listed on the New <br />York Stock Exchange (NYSE), trading <br />under the symbol CCC. <br />http://www.calgoncarbon.com/about/history/ <br />3/9/2017 <br />