PPS is marketed by different brand names by different manufacturers. The major industry players are China Lumena New Materials, Solvay, Kureha, SK Chemicals, Celanese, DIC Corporation, Toray Industries, Zhejiang NHU Special Materials, SABIC, and Tosoh.[4] Other manufacturers include Chengdu Letian Plastics, Lion Idemitsu Composites, and Initz (a joint venture of SK Chemicals and Teijin).[5]