| Symbol | Name | Country | Exchange |
|---|---|---|---|
| 300203 | Focused Photonics Hangzhou Inc | CN | SHE |
| DCN | Datacolor AG | CH | SW |
| 688600 | Anhui Wanyi Science and Technology Co Ltd | CN | SHG |
| 300306 | Hangzhou Everfine Photo E Info | CN | SHE |
| 300318 | Beijing Bohui Innovation Technology Co Ltd | CN | SHE |
| 300862 | Anhui Landun Photoelectron Co Ltd | CN | SHE |
| 6426 | Apogee Optocom Co Ltd | TW | TW |
| JELLF | Jeol Ltd | US | OTC |