| CHINA TOWER(00788) | 20.65% | China United Network Communications Corp. Ltd. | 100.00% |
| China Netcom Group Corp. (Hong Kong) Ltd. | 100.00% | China Unicom (Hong Kong) Operations Ltd. | 100.00% |
| China Netcom (Hong Kong) Operations Ltd. | 100.00% | China Unicom (Americas) Operations Ltd. | 100.00% |
| China Unicom (Europe) Operations Ltd. | 100.00% | China Unicom (Japan) Operations Corp. | 100.00% |
| China Unicom (Singapore) Operations Pte Ltd. | 100.00% | Unicom Vsens Telecommunications Co., Ltd. | 100.00% |
| China Unicom System Integration Ltd. Corp. | 100.00% | China Unicom Broadband Online Ltd. Corp. | 100.00% |
| Beijing Telecommunications Planning and Designing Institute | 100.00% | Zhongrong Information Service Ltd. Corp. | 100.00% |
| China Information Tech. Designing & Consulting Institute | 100.00% | Unicom Xingye Science and Technology Trade Co., Ltd. | 100.00% |
| New Guoxin Telecom Corp. of China Unicom | 100.00% | | |