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www.fdanews.com/articles/138478-lonza-group-begins-1-2-billion-buyout-of-arch-chemicals

Lonza Group begins $1.2 Billion Buyout of Arch Chemicals

July 18, 2011
Lonza Group has begun the acquisition of Arch Chemicals. Lonza will pay $47.20 per share cash, valuing the maker of antibacterial products at $1.2 billion.
Businessweek