Arch Chemicals is Now Part of Lonza

Arch Chemicals, Inc., now part of Lonza, had more than $1 billion in sales in 2010. We take pride in making products that help make people's lives better, safer and healthier. Headquartered in Basel, Switzerland, Lonza Group Ltd is a leading supplier to the global life sciences, healthcare and pharmaceutical industries. The combination of both companies' operations has created the world's largest Microbial Control business: Lonza Microbial Control.