Headquartered in Norwalk, Connecticut (USA), Arch Chemicals, Inc.  (NYSE: ARJ)  is a global Biocides company with more than $1 billion in annual sales.  Together with our subsidiaries, we have 3,000 employees and manufacturing and customer-support facilities in North and South America, Europe, Asia, Australia and Africa.  We take pride in making products that help make people's lives better, safer and healthier (PDF