The company was founded in 1987 and listed on the Shanghai Stock Exchange in 1990. It is one of the earliest listed companies in China. The company was an early integrated service provider engaged in intelligent hardware manufacturing, intelligent system integration, and security operation services in China. It has now formed three major business patterns: integrated security operation services, smart city system integration, and intelligent security product manufacturing. The main products and services are: The Overseas Security Business Division provides services such as cash escort, valuables escort, cash collection and distribution, ATM maintenance, confidential document transfer, valuables storage, human security resources, etc. for large financial institutions, high-end hotels, government agencies, large or high-end retailers and other commercial customers. The domestic security system integration business department is engaged in the design, installation, implementation and maintenance of security systems. The domestic security product manufacturing and sales business department is engaged in the development, manufacture and sale of security products such as access control, alarms, intelligent intercom equipment, video surveillance equipment, etc. business. Corporate honors: high-tech enterprise; software enterprise certification; information system business security service qualification level 2; security technology prevention enterprise level 1; information security management system certification, etc. Since 2014, it has been awarded honorary titles such as “National Top Ten Purification Engineering Technology Companies”, “China's AAA Credit Enterprise”, and “Guangdong Province Contract-abiding and Credit-worthy Enterprise” for many years.