?- 3M
- Acerinox SA (VDM Metals)
- Akzo Nobel NV
- Aluminum Corporation of China Limited (Chalco)
- Arkema
- ATI
- Axalta Coating Systems
- BASF SE
- Beacon Adhesives Inc.
- Carpenter Technology Corporation
- Corporation VSMPO-AVISMA
- DELO Industrie Klebstoffe GmbH & Co. KGaA
- Evonik Industries AG
- Greiner AG
- Henkel AG & Co. KGaA
- Hentzen Coatings Inc
- Hexcel Corporation
- Howmet Aerospace
- Huntsman International LLC
- HYOSUNG
- ISOVOLTA AG
- Jiangsu Hengshen Co. Ltd
- Mankiewicz Gebr & Co.
- Mitsubishi Chemical Corporation
- Nanjing Yunhai Special Metal Co. Ltd
- NIPPON STEEL CORPORATION
- PPG Industries Inc.
- Precision Castparts Corp.
- Reliance Industries Ltd
- Rogers Corporation
- SGL Carbon
- Socomore
- Solvay
- Tata Steel (Corus)
- The Sherwin-Williams Company
- Toray Industries Inc.