| DIAT ELECTRIC CABLE CO., LIMITED | Private company limited by shares | Live |
| DIATEC DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| DIATEC INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| DIATEC INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| DIATECH LIMITED | Private company limited by shares | Dissolved |
| DIATECH LIMITED | Private company limited by shares | Live |
| DIATENG INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| DIATLANTIS LIMITED | Private company limited by shares | Live |
| Diatom Limited | Private company limited by shares | Live |
| China YBES Diatom Ooze Co., Limited | Private company limited by shares | Live |
| DIATONE INNOVATIONS CO., LIMITED | Private company limited by shares | Live |
| Diatonic Harmony Limited | Private company limited by shares | Live |
| DIATOOL CO., LIMITED | Private company limited by shares | Live |
| DIATOP Company Limited | Private company limited by shares | Live |
| DIATRADER LIMITED | Private company limited by shares | Dissolved |