The Business Unit Rhein Chemie (BU RCH) located their US head office in Chardon, Ohio. The facility houses both the management and production departments of Rhein Chemie.

Rhein Chemie develops, produces and sells additives, specialty chemicals and service products for the rubber, lubricant and plastics industries. In fiscal 2010 Rhein Chemie achieved sales of EUR 283 million and has approximately 1,000 employees worldwide. The company is headquartered in Mannheim, Germany, and operates production facilities in Europe, Asia and North and South America.