Established in 1993, Siwin Corp is an exporter and wholesaler of plastic scraps serving across the United States. Based in Compton, Calif., it specializes in plastic materials recycling and reprocessing. Its calcium carbonate filler products are widely used in plastic blow molding, injection molding and extrustion. Siwin Corp collects various forms/types of plastic scraps, such as ungrind, regrind, pellets, flakes, bales and purge, to name a few. The company handles a variety of plastic scraps annually ranging from post-engineering grades and post-commodity grades. It also offers in logistics and transportation support for collecting and disposing the scrap.