| Symbol | Name | Country | Exchange |
|---|---|---|---|
| OPVS | Nanoflex Power Corpo | US | OTC |
| SCIA | Sci Engineered Materials Inc | US | OTC |
| SMMYY | Sumitomo Metal | US | OTC |
| SMTK | Smartkem Inc | US | OTC |
| TOSCF | Tosoh Corp [Japan] | US | OTC |
| VARXF | Boe Varitronix Ltd | US | OTC |
| XPPLF | Xp Power Ltd | US | OTC |
| 036930 | JUSUNG ENGINEERING Co. Ltd | KR | KQ |
| 002273 | Zhejiang Crystal Optech Co Ltd | CN | SHE |
| 002585 | Jiangsu Shuangxing Color Plastic New Materials Co Ltd | CN | SHE |
| 3663 | ThinTech Materials Technology Co Ltd | TW | TWO |