How many large set-top box enterprises are there in China? Please give a brief introduction, thank you.

Domestic large set-top box companies include Tian Bai Company, Skyworth Company, Kyushu Company, Jiulian Company, Changhong Company, Jiangsu Galaxy Company and Tongzhou Company.

(1) Tian Bai Company: Tian Bai Group is a wholly-owned company under Tiandi Digital (Holdings) Co., Ltd., a high-tech listed company in Hong Kong. Mainly engaged in digital TV technology development, product promotion and application services, it is a high-tech enterprise with international leading level in the industry. Tian Bai Group currently has five subsidiaries in China, Beijing and Shanghai, and China CITIC Group is the controlling shareholder of Tiandi Digital.

(2) Skyworth Company: Skyworth Group Co., Ltd., founded in 1988, is an intelligent household appliance and information technology enterprise engaged in multimedia (smart TV, set-top box, content operation), household appliances (intelligent products such as refrigerators, washing machines, air conditioners and kitchen appliances), intelligent system technology, big data and modern service industry.

(3) Kyushu Company: Sichuan Kyushu Electronic Technology Co., Ltd. is a high-tech industrial joint-stock company jointly funded by Sichuan Kyushu Electric Appliance Group Co., Ltd., Shenzhen Color TV Corporation, Tsinghua Science and Technology Venture Capital Co., Ltd. and Sichuan Mianyang Investment Holding Group Co., Ltd. Its main business is cable TV broadband integrated information network products, network software and system engineering.

(4) Jiulian Company: Guangdong Jiulian Technology Co., Ltd. was established on 200 1,1,headquartered in Huizhou City, Guangdong Province, and is a product, technology and service provider focusing on five fields: smart home, intelligent security, mobile communication, intelligent manufacturing equipment, and research and development and application of Internet of Things.

(5) Changhong Company: Sichuan Changhong Network Technology Co., Ltd. is an independent subsidiary of Changhong Group, integrating R&D, production and marketing. Its main business includes all kinds of end-to-end integrated solutions, technologies, products and related services such as digital TV terminal products, communication transmission equipment, digital TV value-added services and system integration.

(6) Jiangsu Yinhe: Jiangsu galaxy electronics Co., Ltd., founded in 1975, is a national key high-tech enterprise and the first batch of enterprises in China that "honor contracts and honor credit". Mainly engaged in R&D, design, production and sales of digital TV receiving terminals, information electronic equipment components and smart grid distribution equipment, it is one of the largest professional manufacturers of digital TV receiving terminals in China at present.

(7) Tongzhou Electronics Company: Shenzhen Tongzhou Electronics Co., Ltd. is a high-tech enterprise that provides full-service interconnection solutions and operation services for radio and television. Products cover key front-end systems, networks, core software, middleware, operation support systems, content services, value-added services, digital TV set-top boxes, digital TV integrated machines, IPTV set-top boxes, satellite communications, mobile terminals, security electronics and other industries.

Baidu encyclopedia-Sichuan Changhong Technology Co., Ltd.

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