China United Network Communications Group Co., Ltd., commonly known as China Unicom, is a state-owned telecommunications operator in China. It is one of the largest wireless carriers in China and a major global mobile provider. The company offers a wide range of services and operates in both China and Hong Kong. 

Key facts about China Unicom:

Establishment: The current iteration of China Unicom was formed on January 6, 2009, from the merger of the former China Unicom and China Netcom. Business areas: The company provides an extensive portfolio of communication and information services, including:

Mobile and fixed-line communications Internet and data services IP telephony Satellite International Private Leased Circuit (IPLC)

ICT (Information and Communications Technology) services Value-added services and system integration Digital transformation: China Unicom is actively involved in the development of the digital economy by building comprehensive digital information infrastructure and promoting the digital transformation of various industries. It focuses on "Connectivity and Communications" (CC) and "Computing and Digital Smart Applications" (CDSA).

Partnerships and development: The company has a history of strategic collaborations and technological advancements.

In 2017, it initiated a mixed-ownership reform, introducing several strategic investors to its listed company in mainland China.

In 2024, it partnered with Huawei to launch a 5G-A V2X innovation base focused on intelligent driving.

International reach: China Unicom operates through various subsidiaries and has an international presence.

Its subsidiary, China Unicom (Europe), is headquartered in London and handles business in Europe and Africa.

Another subsidiary, China Unicom Global, offers integrated telecommunication services worldwide.

U.S. sanctions: China Unicom has been impacted by U.S. sanctions due to its alleged ties to the People's Liberation Army. In 2022, the Federal Communications Commission (FCC) revoked its authorization to operate in the United States over national security concerns.

Ownership and listing: As a state-owned enterprise, China Unicom Group has major shareholders including state-controlled entities. Its subsidiaries are listed on stock exchanges, such as China United Network Communications Ltd. (600050.SS) in Shanghai and China Unicom (Hong Kong) Ltd. on the Hong Kong Stock Exchange (0762.HK).

Under ongoing investigation (2025): In March 2025, the FCC announced it was investigating China Unicom and other Chinese telecom firms for potentially operating in the US despite the prior bans.

Congressional inquiry (2025): The House Select Committee on the Chinese Communist Party initiated its own inquiry into Chinese telecom companies, including China Unicom, in March 2025, and issued subpoenas for company records in April 2025.