National Plastics Color, formed in 1989, is a color concentrate manufacturer with yearly sales of more than $40 million. The company specializes in the compounding of resins, additives and pigments. Its product line includes additives, dry and liquid color, polyvinyl chloride color and Masterbatch. National Plastics Color offers its colorants and additives in multiple forms, including plasticized concentrates and dry colors for use in several types of plastics, such as polyethylene, polypropylene, polystyrene, acrylics and styrene acrylonitrile. The company has two warehouses in Central America and an extrusion plant in Kunming, China. Its manufacturing facilities are ISO 9002 certified. National Plastics Color employs more than 110 people and is based in Valley Center, Kan.