Ameriya Oil Ref. Co.; Angarsk Petrochemical; Alexandria National Refining and Petrochemicals Company (ANRPC); Arsol Aromatics GmbH & Co. KG?; Atyrau Oil & Gas; Azerkhimija; BASF SE; Borealis AG?; Bp Plc; Braskem?; Chevron Phillips Chemical Company; China National Petroleum Corporation?; China Petrochemical Corporation; China Petroleum & Chemical Corporation (Sinopec); CPC Corporation Limited; Deza
A. S; Eastman Chemical Company; Egyptian Petrochemicals Holding Company (ECHEM); Exxon Mobil Corporation; Flint Hills Resources; Gadiv Petrochemical Industries; Gazprom Neft PJSC; GS Caltex Corporation; IBN Rushd; INEOS; JSC Mozyr Oil Refinery; JX Holdings?; JXTG Nippon Oil & Energy Corporation; Kian Petrochemical Company; Kuwait Aromatics Co. (Karo); LG Chem