Rivertop Renewables Sets New CEO

Missoula, Montana-based renewable chemicals firm Rivertop Renewables said Wednesday that it has named Michael J. Knauf as its new CEO. Knauf previously has served at COdexis and Genencor, and has served for 30 years in the bioindustrial industry, according to the firm. Rivertop Renewables is developing chemical products derived from renewable plant sugar.