Abu Dhabi National Oil Company
Akzo Nobel NV
Albemarle Corp.
Arkema Inc.
Asahi Kasei Chemicals Corporation
Ashland Global Holdings, Inc.
Baker Hughes, Inc.
BASF SE
Bayer AG
Bharat Petroleum Corp. Ltd.
BP Plc
Cargill, Incorporated
Chevron Corp.
Chevron Phillips Chemical Company Lp
China National Offshore Oil Corporation
China National Petroleum Corp.
China Petrochemical Corp.
Clariant AG
Cytec Industries, Inc.
Daelim Industrial Co., Ltd.
E.I. du Pont de Nemours & Co.
Eastman Chemical Co.
Equate Petrochemical Company
Evonik Industries AG
ExxonMobil Corp.
Formosa Petrochemical Corp.
Hindustan Petroleum Corp. Ltd.
Honeywell International, Inc.
Huntsman Corp.
Idemitsu Kosan Co., Ltd.
Indian Oil Corp. Ltd.
INEOS Group AG
Korea Gas Corp.
Korea Petroleum Industrial Co., Ltd.
Kuwait National Petroleum Company KSC
LANXESS Solutions US, Inc.
LG Chem Ltd.
LyondellBasell Industries NV
Marathon Oil Corp.
Marathon Petroleum Corp.
Mitsubishi Chemical Holdings Corp.
Mitsui & Co., Ltd.
National Iranian Oil Company
Nizhnekamskneftekhim PJSC
NOVA Chemicals Corp.
Perseus LLC
PetroChina Co., Ltd.
Petróleo Brasileiro SA
PETRONAS Chemicals Group Bhd.
Phillips 66
PTT Public Co., Ltd.
Qatar Petroleum
Qatar Vinyl Company Limited QSC
Qurain Petrochemical Industries Co. KSC
Reliance Industries Ltd.
Royal Dutch Shell Plc
Samsung Total Petrochemical Company Limited
Sasol Ltd.
Saudi Aramco
Saudi Basic Industries Corp.
Shanghai SECCO Petrochemical Company Limited
Shell Chemical Lp
Sibur Limited
Sika AG
SINOPEC Engineering (Group) Co., Ltd.
Sinopec Shanghai Petrochemical Co. Ltd.
Solvay SA
The Dow Chemical Co.
The Lubrizol Corporation
The Siam Cement Public Co. Ltd.
Total Lubricants USA, Inc.
Total SA
W.R. Grace & Co.