Worthington Industries
Luxfer Group
Hexagon Composites ASA
Quantum Fuel Systems Technologies Worldwide Inc.
Everest Kanto Cylinders Ltd.
Praxair Technologies Inc.
Avanco Group
Beijing Tianhai Industry Co. Ltd.
Lianyungang Zhongfu Lianzhong Composites Group Co. Ltd.
Faber Industrie S.P.A