?- American Beryllia Inc.
- American Elements
- Belmont Metals
- Hunan Shuikoushan Nonferrous Metals Group Co. Ltd (SKS)
- IBC Advanced Alloys
- Materion Corporation
- NGK Metals Corporation
- Texas Mineral Resources Corp.
- National Atomic Company Kazatomprom
- Tropag Oscar H. Ritter Nachf GmbH
- Xiamen Beryllium Copper Technical Co. Ltd (BCTC)