The company is a leading domestic and internationally renowned provider of environmental and reliability testing equipment and testing services and solutions, and is one of the leaders in environmental and reliability testing in China. The predecessor of the group was Suzhou Test Instrument Factory. It was founded in 1956, introduced strategic investors in 2008 to establish Suzhou Suji Test Instrument Co., Ltd., and changed overall to Suzhou Sutest Instrument Co., Ltd. in 2011. On January 22, 2015, Suzhou Suji Testing Instrument Co., Ltd. was listed on the GEM of the Shenzhen Stock Exchange, becoming the first listed company in the industry. On August 25, 2017, Suzhou Suji Test Group was officially established, and Suzhou Suji Test Instrument Co., Ltd. changed its name to Suzhou Suji Test Group Co., Ltd. The company's main business includes two major segments: test equipment and test services. The main products include R&D, manufacture, and sales of mechanical environment testing equipment, climate environment testing equipment, comprehensive environmental testing equipment, analytical testing systems and sensors, and providing testing services such as environmental and reliability testing services, integrated circuit verification and analysis services, and software evaluation services. The company has received honors such as the National Key New Product Program, the second prize of the China Machinery Industry Science and Technology Award, the second prize of the Suzhou Science and Technology Progress Award, the Jiangsu Science and Technology Support Program (Industry), the first patented new product gold medal of the Jiangsu equipment manufacturing industry, the first major equipment product (set) of Jiangsu Province, and the Jiangsu Machinery Industry Science and Technology Award.