Exxon Mobil Corporation; Sinopec; Royal Dutch Shell PLC; Reliance Industries; BASF SE; Valero Energy; BP Chemicals; China National Petroleum; Mitsui Chemicals; Chevron Phillips; Nova Chemicals; Sherwin-Williams; Total SA; Lyondell Basel; Covestro AG; Formosa Plastics; CPC Corporation; China Petroleum & Chemical Corporation; SK Innovation; Braskem SA; Koch Industries; JX Nippon Oil and Energy; Mitsubishi Chemical Corporation; BP P.L.C.; Mitsui & Co; S.K. Global Chemical Co Ltd; GS Caltex; Formosa Chemical & Fiber Corporation; Stepan