| K.Y.S. INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| KYSAZOZE LIMITED | Private company limited by shares | Live |
| KYSEE SERVICE LIMITED | Private company limited by shares | Live |
| KYSHO (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| KYSHO MULTIMEDIA LIMITED | Private company limited by shares | Live |
| KYSING LIMITED | Private company limited by shares | Dissolved |
| K.Y.S.L. LIMITED | Private company limited by shares | Live |
| KYSL ADVANCED MATERIAL COMPANY LIMITED | Private company limited by shares | Live |
| KYSON ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| KYSON GROUP LIMITED | Private company limited by shares | Live |
| Kyson Outdoor Equipment Co., Limited | Private company limited by shares | Live |
| KYSS LIMITED | Private company limited by shares | Live |
| KYST Trading Company Limited | | Live |
| KYSTEELCON (L) LIMITED | Private company limited by shares | Dissolved |
| KYSUI CO., LIMITED | Private company limited by shares | Dissolved |