Emerald Performance Materials has appointed Edward T. Gotch and Jim Donnelly as presidents of its Emerald Kalama Chemical and Specialties business units, respectively.

Gotch has served as the business director of the Kalama business. Prior to his new assignment, he was responsible for several plant operating units, corporate financial planning and analysis, and general management at Emerald and its predecessor companies.

Donnelly has served as the senior business director of the Hilton Davis business. In the past, he has held management positions in finance, operations management, purchasing, supply chain management, and sales and marketing.

For more information, visitwww.emeraldmaterials.com.