Solar
Materials

| Alumina |
| Sponsor Companies | |||
| Name | Region | No.Staff | Material Types |
| AdValue Technology | USA | Alumina | |
| AGSCO | USA | Alumina | |
| Alfa Aesar | USA | Alumina | |
| All-Chemie | USA | Alumina | |
| Arkonic | Nevis | Alumina | |
| Avaluxe International | Germany | Alumina | |
| Beijing Hezongtianqi | China | Alumina | |
| Carborundum | India | 250 | Alumina |
| Carborundum Universal Limited - CUMI | India | 32000 | Alumina |
| Feldco International | USA | Alumina | |
| Futong Industry | China | Alumina | |
| Hydro Aluminium | USA | Alumina | |
| Kessen Ceramics | China | Alumina | |
| Kronox Lab | India | 100 | Alumina |
| Nanko Abrasives | Japan | Alumina | |
| Noah Technologies | USA | 150 | Alumina |
| Polmineral | Poland | Alumina | |
| ProTech Materials | USA | Alumina | |
| Vacuum Engineering & Materials | USA | Alumina | |