Founded in 1968, King Plastic Corporation is one of the leading manufacturers of polymer sheets, slabs and massive shapes, including several products pioneered by the company. Its polymers are sold worldwide through a network of leading plastics distributors to customers who fabricate products for the marine industry (King StarBoard brand), signage, food service, neutron shielding, construction, industrial and other applications. King Plastic Corporation s 150,000-square-foot manufacturing facility and headquarters is located in North Port,