Solar
Materials

| Tin |
| Sponsor Companies | |||
| Name | Region | No.Staff | Material Types |
| Alfa Aesar | USA | Tin | |
| All-Chemie | USA | Tin | |
| China Tin Group | China | 11,000 | Tin |
| Nippon Rare Metal | Japan | Tin | |
| PPM Pure Metals | Germany | Tin | |
| Robeko | Germany | Tin | |
| Xinyan Non-ferrous Metals | China | Tin | |
| Yunnan Tin Group | China | 30,000 | Tin |