Waelz Sustainable Products, WSP is a joint venture between Zinc Nacional and Heritage Environmental Services founded in 2018 to service the steel mini-mill industry by providing a sustainable solution for by-products. Not in our backyard STOP the WSP plant in Cass County, Logansport IN. The radio station aired three “Talk of the Town” shows about the plant with WSP officials speaking on Tuesday and Cass County Commissioners. Earth-moving machinery sits on land north of Clymers where Waelz Sustainable Products (WSP) plans to build two kilns to break down electric arc furnace dust into zinc and iron for resale. Our work on the expansion and upgrade of power plants results in safer and more efficient facilities, with a smaller environmental footprint and lower operating.