American Securities LLC, a New York-based middle-market private equity firm,  has completed its acquisition of a controlling interest in Arizona Chemical, one of the world's leading biorefiners of pine chemicals used in a broad range of end-market applications. Management and current investors will continue to own a meaningful equity position. Headquartered in Jacksonville, Florida, and in Almere, the Netherlands, Arizona Chemical has more than 1,000 employees and state-of-the-art refineries located in six countries on both sides of the Atlantic. Equity was provided by American Securities Partners V, L.P., a $2.3 billion private equity partnership. Established in 1930, Arizona Chemical refines pine chemicals, crude tall oil and crude sulphate turpentine into high value end-products. Arizona Chemical's raw materials are environmentally-friendly starting points for manufacturing everyday products for adhesives, printing inks, tires, roadmarkings, decorative paints, personal care and many other markets. Headquartered in New York with an office in Shanghai, American Securities LLC is a U.S. middle-market private equity firm that invests in market-leading companies in North America with annual revenues generally ranging between $100 million to $1 billion. Investments are funded from more than $6 billion of committed capital. The firm traces its roots to the family office founded in 1947 by William Rosenwald to invest and manage his share of his family's Sears, Roebuck & Co. fortune.