• BASF SE
• Airgas Inc. (L’AIR LIQUIDE S.A.)
• Gulf Cryo
• Linde plc
• The Dow Chemical Company
• Asia Technical Gas Co (Pte) Ltd
• Jinhong Gas Co. Ltd
• Koatsu Gas Kogyo Co. Ltd.
• Nippon Sanso Holdings Co. Ltd. (Mitsubishi Chemical Holdings)
• Butler Gas Products Company