Patron Members
| affinia Metals |
| Alex Stewart International |
| Alfred H Knight |
| Allgemeine Gold- und Silberscheideanstalt |
| ALS Inspection UK |
| Arc Metal |
| Aurubis |
| Baird & Co |
| DOWA Metals & Mining |
| Heimerle + Meule |
| Hensel Recycling |
| Inspectorate |
| Johnson Matthey |
| Mairec |
| Malca-Amit |
| Mastermelt |
| Metalor Technologies |
| PAMP |
| R.S. Bruce (Metals & Machinery) |
| Sabin Metal Corporation |
| Scotiabank |
| SGS Group Management |
| Sumitomo Corporation Global Comm. |
| Techemet Limited |
| Umicore |
| Valcambi |
