BEKUM AMERICA CORP. — The blow molding machinery maker in Williamston, Mich., named Ben Lopez technical manager.
CHEMICAL MARKET ASSOCIATES INC. — The petrochemical consulting firm based in Houston named John Stekla director of ethylene studies and Jinsu Yim director of Asia olefins studies in Singapore.
CONAIR GROUP INC. — The equipment maker in Cranberry Township, Pa., a Pittsburgh suburb, named Mark Mulone extrusion sales manager.
CONTINENTAL COMMERCIAL PRODUCTS LLC — The janitorial products provider based in St. Louis named Rick Mazzoli vice president of sales and marketing.
DOW CHEMICAL CO. — The resin producer in Midland, Mich., named Glenn Wright commercial vice president for North American basic plastics, succeeding Howard Ungerleider, who was named vice president of investor relations.
DYMAX CORP. — The adhesives manufacturer based in Torrington, Conn., named Kyle Rhodes medical market manager.
KELLEN CO. — The association management firm in New York named Allen Weidman senior account executive, based in Washington.
PLASTRONICS SOCKET CO. — The burn-in socket manufacturer in Irving, Texas, named Paul Schubring supply chain manager.
RJG INC. — The supplier of injection molding training and software based in Traverse City, Mich., named Glen Embry a consultant/trainer and regional account manager in Kentucky. Dan Clark also was named a consultant/trainer for the West and Midwest.