| Symbol | Name | Country | Exchange |
|---|---|---|---|
| HOCPF | HOYA Corporation | US | OTC |
| HOCPY | HOYA Corporation | US | OTC |
| LPKFF | Lpkf Laser & Electro | US | OTC |
| 6826 | Shanghai Haohai Biological | HK | HK |
| 039030 | EO Technics Co. Ltd | KR | KQ |
| 000988 | Huagong Tech Co Ltd | CN | SHE |
| 603283 | Suzhou Secote Precision Electronic Co Ltd Class A | CN | SHG |
| 688366 | Shanghai Haohai Biological Tech Co | CN | SHG |
| 688559 | Shenzhen Hymson Laser Intelligent Equipments Co Ltd | CN | SHG |
| 300776 | Wuhan DR Laser Technology Corp Ltd | CN | SHE |
| 8064 | Contrel Technology Co Ltd | TW | TWO |