Mansfield performs corrosion removal and prevention services as a contractor at Shin-Etsu’s Freeport, Texas plant. At the time of the hearing it had been performing those services at the plant for three years and continued to provide those services through the week of the hearing (Tr. 35). Shin-Etsu produces organic silanes and their derivatives in its chemical plant. The Freeport plant includes several buildings at various locations on the site (Tr. 50-52; Exhs. C-25 and C-25a). The Freeport plant is located in a marina area where salt water in the air causes corrosion and imperfections in the paint on carbon-based pipes, bolts and flanges in the plant (Tr. 45). Shin-Etsu contracted with K2 Industrial Services, Inc. (K2) for corrosion prevention and removal services at the Freeport plant. K2 provided its subcontractor, Mansfield, to perform the corrosion services.