?- Aviva Metals
- Citizen Metalloys Limited
- Copper Braid Products
- Cupori Oy
- Farmers Copper
- Furukawa Electric Co. Ltd
- Hussey Copper
- KGHM
- KME Mansfeld GmbH
- Metrod Holdings Berhad
- Pan Pacific Copper co. ltd.
- Sam Dong America
- Sequoia Brass & Copper.
- Shanghai Metal