| Symbol | Name | Country | Exchange |
|---|---|---|---|
| SCIA | Sci Engineered Materials Inc | US | OTC |
| SGTSY | Singulus Technologies Ag ADR | US | OTC |
| SOMMY | Sumitomo Chemical Co | US | OTC |
| STMNF | Sumitomo Metal Mining CO Ltd | US | OTC |
| SNG | Singulus Technologies AG | DE | F |
| 033160 | MK Electron Co. Ltd | KR | KQ |
| 083930 | Avaco Co. Ltd | KR | KQ |
| 101160 | Worldex Industry & Trading Co. Ltd | KR | KQ |
| 300263 | Luoyang Longhua Heat Trans Energy | CN | SHE |
| 300666 | Konfoong Materials International Co Ltd | CN | SHE |
| 3663 | ThinTech Materials Technology Co Ltd | TW | TWO |
| 3518 | Paragon Technologies Co Ltd | TW | TW |