ZPSS.ZPSS (PZSS) is a stainless steel manufacturer established in 1997 as a joint venture between South Korea's POSCO and Jiangsu Shagang Group, with an investment of US$216 million in the first phase of the project. The first phase of the project investment of 216 million U.S. dollars, put into operation in 1999, with an annual output of 140,000 tons of cold rolled sheet; in 2003, after the completion of the second phase of the production capacity to 400,000 tons / year, covering an area of 208,000 square meters. 2003 to start the expansion (total investment of 744 million U.S. dollars, POSCO shareholding of 82.5%), 2006, the completion of the consistency of the iron production plant. 2009, the new production line of wide-width plate, the introduction of French 20-roll mill, German annealing and pickling equipment and other advanced technologies. Introduced French 20-roll mill, German annealing and pickling equipment and other advanced technologies, the product thickness of 0.3-5.0mm, width of 1,000-1,600mm, covering the 300-series, 400-series high-value-added stainless steel, and through the laser welding machine and other innovative processes to reduce costs, to meet the needs of a diversified market.