CARUTHERSVILLE, Mo. (Dec. 13)—Fireside Group, a St. Louis-based investment group, bought the assets of Cupples Rubber Co.´s Caruthersville division. Opened in 1996, the division´s 100,000-sq.-ft. plant specializes in high-volume elastomeric lathe-cut gaskets and extruded profiles in several elastomers. Cupples Rubber of Caruthersville L.L.C. will do business as Cupples Rubber Industrial Products, Fireside said. The ISO-9002 and QS-9000 certified operation is the investment group´s eighth manufacturing company. The group also owns Custom Rubber Extrusions in Ravenna, Ohio.