China Telecom is a state-owned telecommunications company in China that provides fixed-line and mobile voice, broadband and other information and communication services. It was established in 2002 and is headquartered in Beijing, China.

The company is one of the largest telecommunications providers in the world, with a customer base of over 300 million users. It operates a nationwide fixed-line network covering over 80% of China's population and a mobile network covering over 99% of the country's population.

In addition to its core telecommunications services, China Telecom also offers a range of value-added services, including internet services, data services, cloud computing, and integrated information services. The company has a strong focus on innovation and has invested heavily in research and development to develop new technologies and services.

China Telecom is listed on the Hong Kong and New York stock exchanges and has a number of subsidiary companies, including China Telecom (Hong Kong) Limited, China Telecom Global Limited, and China Telecom Americas Corporation.

Founded: 1997
Headquarters: Beijing, China

Website: https://www.chinamobileltd.com/en/global/home.php

China Mobile is one of the Largest 5g Technology Companies in China. It is one of the world's largest mobile network operators, with over 946 million subscribers as of June 2021. China Mobile offers mobile voice and data services, fixed-line broadband services, and other related communication services.

The company was founded in 1997 and was listed on the New York Stock Exchange (NYSE) and the Hong Kong Stock Exchange (HKEX) in 1997 and 2006, respectively. China Mobile is a constituent of the Hang Seng Index and the SSE 50 Index.

China Mobile operates in all 31 provinces, autonomous regions, and directly administered municipalities in Mainland China, as well as in Hong Kong and Macau. The company has also expanded internationally, with operations in 20 countries and regions, including Pakistan, Thailand, and South Africa.

As a leader in the Chinese telecommunications industry, China Mobile has been at the forefront of the development and deployment of 5G technology. The company launched its commercial 5G network in November 2019 and has since built out its 5G infrastructure to cover more than 340 cities in China.

Founded: 1997

Headquarters: Beijing, China

Website: https://www.chinamobileltd.com/en/global/home.php

China Unicom is one of the Largest 5g Technology Companies in China. It is one of the three major telecommunications operators in the country, alongside China Mobile and China Telecom. China Unicom provides a range of telecommunications services, including mobile and fixed-line voice and data services, broadband internet, and value-added services.

China Unicom was founded in 1994 and is headquartered in Beijing. The company operates in all 31 provinces, autonomous regions, and municipalities in China, as well as in Hong Kong, Macau, and 20 countries and regions around the world.

In addition to its telecommunications services, China Unicom has expanded into other areas, including e-commerce, internet finance, and cloud computing. The company has also established partnerships with other major global telecommunications companies to expand its international reach and improve its services.

As of 2021, China Unicom had over 300 million mobile subscribers and over 110 million fixed-line broadband subscribers, making it one of the largest telecommunications companies in the world.

Founded: 2009

Headquarters: Hong Kong

Website: https://www.cuguplus.com/home?

ZTE Corporation is a Chinese multinational telecommunications equipment and systems company that was founded in 1985 and is headquartered in Shenzhen, China. The company operates in three main business areas: carrier networks, terminals, and telecommunication.

ZTE is a leading provider of network solutions and services to telecommunications operators worldwide. The company's products and services include wireless networks, broadband access networks, optical transmission networks, data communications, and mobile communication devices such as smartphones and tablets.

ZTE is one of the top five smartphone vendors in China and has a significant presence in international markets, particularly in Europe, Asia, and Africa. In addition to its telecommunications products and services, ZTE is also involved in research and development in emerging technologies such as 5G networks, the Internet of Things (IoT), and cloud computing. The company has faced challenges in the past due to U.S. sanctions and trade restrictions, but has since resumed operations after reaching agreements with the U.S. government.

Founded: 1985
Headquarters: Shenzhen, China

Website: https://www.zte.com.cn/global/

Huawei is a Chinese multinational technology company that specializes in telecommunications equipment and consumer electronics. The company was founded in 1987 by Ren Zhengfei and is headquartered in Shenzhen, Guangdong, China. Huawei is one of the largest telecommunications equipment manufacturers in the world and is also the world's second-largest smartphone maker, as of 2021.

The company provides a wide range of products and services, including 5G networks, smartphones, tablets, laptops, smartwatches, and other consumer electronics. It also offers enterprise solutions such as cloud computing, data centers, and artificial intelligence.

Huawei has faced controversy and scrutiny from some governments and industry groups over its alleged ties to the Chinese government and concerns about the security of its products. The United States government, in particular, has placed restrictions on Huawei's business activities and has accused the company of stealing intellectual property and violating trade sanctions.

Huawei has denied these accusations and has called for open dialogue and collaboration with regulators and industry partners. As of 2021, Huawei has more than 197,000 employees and operates in over 170 countries.

Founded: 1987

Headquartered: Shenzhen, China

Website: consumer.huawei.com/en/