Member Companies

BCT Chemtrade Corporation
BP Products North America, Inc.
California Sulphur Company
Chemical Initiatives
ConocoPhillips Company
Con-Sul Inc.
Crescent Technology, Inc.
Devco USA LLC
Enersul Inc.
ExxonMobil Oil Corporation
H.J. Baker & Bro., Inc.
Interacid Trading S.A.
Inter-Chem
International Commodities Export Corporation (ICEC)
Jupiter Sulphur L.L.C.
Koch Sulfur Products Company LLC
Kuwait Petroleum Corporation
Marsulex, Inc
Martin Operating Partnership, L.P.
Mitsubishi Corporation
Mitsui & Co. (U.S.A.), Inc.
Mosaic Fertilizer, LLC
Omni Sulphur Inc.
PetroChina International Company Limited
Primary Resources Inc.
PRISM Sulphur Corporation
Sae Kwang Chemical Ind. Co., Ltd
Savage Services Corporation
Shell Sulphur Solutions
Sinochem Fertilizer Co., Ltd.
solvadis GmbH
Sultran Ltd.
Tasweeq - Qatar International Petroleum Marketing Company Ltd.
Tessenderlo Kerley, Inc.
Transammonia, Inc
Valero Marketing and Supply Company
Zwaans van den Heuvel Tankvaart BV