Shenzhen SED Industry Co., Ltd., founded in September 1993 and listed on Shenzhen Stock Exchange in October 1993 (SHENZHEN SED A in abbreviation, Stock Code: 000032), is a state-owned company invested by CEC (CHINA ELECTRICS CORPORATION) which is the largest state-owned comprehensive electronic information enterprise group in China. The registered capital is 413 million yuan, equivalent to 60 million US dollars, and the annual operating revenue is nearly 2 billion yuan, equivalent to 290 million US dollars. It includes the activities of production and export of consumer electronics and home appliances, production of railway GSM-R mobile communication terminal, intelligent industry (intelligent safety, intelligent transportation, intelligent firefighters, intelligent lighting, intelligent environmental health, intelligent railway), modern logistics, urban transformation based on the modernization of its own industrial park, etc. Wholly owned companies: 1. Shenzhen SED Wireless Communication Technology Co., Ltd. Main business: providing communication, control equipment and railway service GSM-R. 2. Jeda International Transportation Co., Ltd. Main business: logistics transportation and precision transportation. 3. SED (HONG KONG) COMPANY LIMITED Main business: International Trade. Holding companies 1. Shenzhen SED Electronic Equipment Co., Ltd. Main business: intelligent security, intelligent transportation. 2. Shenzhen CEC Sangfei Intelligent Lighting Technology Co., Ltd Main business: intelligent lighting, system integration. 3. Shenzhen Zhonglian Electronic Co., Ltd. Main business: urban renewal project development. 4. Wuxi SED Real Estate Development Co., Ltd. Main business: real estate development (merger proposal).