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