China Unicom Corporation Limited
China Unicom Limited ("the Company") is engaged in the cellular business (both GSM and CDMA) in 31 provinces, municipalities and autonomous regions in China through its wholly-owned subsidiary China Unicom Corporation Limited ("CUCL"), the provision of nationwide international and domestic long distance calls, data communications and Internet business, and other related telecommunications value-added services.

China Unicom International Limited
In September 2004, the Company acquired from Unicom Group of China Unicom International Limited ("Unicom International"), a limited liability company established in Hong Kong engaging in voice wholesale business, telephone cards business, line leasing services, managed bandwidth services and mobile virtual network services. Unicom International's wholly-owned US subsidiary, China Unicom USA Corporation, or Unicom USA, carries a wholesale business of voice traffic between the United States and mainland China.

China Unicom (Macau) Company Limited
On 15 October 2004, the Company established China Unicom (Macau) Company Limited ("Unicom Macau") in Macau. In March 2005, Unicom Macau was granted, through a bidding process, a CDMA license with a term up to 5 June 2013, which allows Unicom Macau to provide roaming services. In October 2005, Unicom Macau completed the construction of a CDMA network in Macau and launched CDMA roaming services. On 14 August, 2006, Unicom Macau obtained approval from the Macau government to provide CDMA cellular services to local users in Macau. Unicom Macau also received a 3G license on the basis of CDMA2000 technology standard on 24 October 2006 to operate a CDMA2000 network in Macau. The Company officially launched 3G service on 18 October 2007 in Macau.

Unicom Huasheng Telecommunications Technology Company Limited
On 1 July 2005, CUCL together with Unicom Xingye Science and Technology Trade Co. ("Unicom Xingye", a subsidiary of Unicom Group) set up Unicom Huasheng Telecommunications Technology Company Limited ("Unicom Huasheng"). Unicom Huasheng, currently a 99.5%-owned subsidiary of CUCL, is principally engaged in sales of handsets and telecommunications equipment and provision of technical services for the Company.