HDA Truck Pride member, Truck Supply Company of South Carolina, recently announced their expansion into the St. Louis market with their purchase of fellow HDA Truck Pride member, Tractor Trailer Supply. Effective immediately, the St. Louis location will take on its new name, Truck Supply Company of Missouri. Truck Supply Company of South Carolina has four locations across the state of South Carolina including three locations in Columbia, SC as well as one in Sumter, SC.