• Linde PLC
• Chart Industries Inc.
• Nippon Sanso Holdings Co. Ltd. (Mitsubishi Chemical Holdings)
• SOL Group
• Merck KGaA
• Air Liquide S.A.
• Ellenbarrie Industrial Gases Limited
• Air Products and Chemicals Inc.
• Promas Engineers Pvt. Ltd.
• SS GASLAB ASIA PVT. LTD.