Jiangsu Liance Electromechanical Technology Co., Ltd. was established in 2002. It is a power system test solution provider. Its main business is the research and development, manufacturing and sales of power system intelligent test equipment, and the provision of power system test verification services. The company has three wholly-owned subsidiaries, Nantong Changce Electromechanical Equipment Co., Ltd., Shanghai Qichangshen Electromechanical Equipment Co., Ltd., and Liance Technology (Hong Kong) Co., Ltd. It also has multiple holding subsidiaries, including Shenzhen Depuxin Technology Co., Ltd. and Suzhou Seedek Measurement and Control Technology Co., Ltd. As of June 30, 2024, there are a total of 17 invention patents, 95 utility model patents, 1 design patent, and 52 software copyrights.
Nantong Changce Electromechanical Equipment Co., Ltd., a wholly-owned subsidiary, is a specialized and innovative "little giant" enterprise, with multiple honorary qualifications such as intellectual property quality management system certification, ISO-9001 quality management certification, CNAS laboratory accreditation certificate, etc.

The company's main products and services are divided into two categories: power system intelligent test equipment and power system test verification services. The company's power system intelligent test equipment includes test benches, test lines, test support equipment, Environmental testing and equipment upgrades. The company's power system test and verification service is based on power system intelligent test equipment, according to the test needs of different customers, for customers to design customized test and verification programs and test verification projects, mainly divided into durability test verification, performance test verification and calibration test verification.

The company's products and services are mainly used in the power system testing of new energy vehicles, fuel vehicles, ships and aviation, and provide intelligent test equipment and test verification services for new energy vehicles, powertrains and related parts, fuel vehicle powertrains and related parts, ship engines, aviation engines and other power system related equipment.

The company's downstream customers are mainly distributed in the field of new energy vehicles, fuel vehicles, ships and aviation. Relevant customers in the field of new energy vehicles include SAIC, GAC, Huawei, etc.; relevant customers in the field of fuel vehicles include Weichai Group, Geely Group, China Automotive Research, etc.; relevant customers in the field of ships include Weichai Heavy Machinery, China Shipbuilding Group, Chinese People's Liberation Army Naval Submarine Academy, etc; relevant customers in the aviation field include China Aviation Development Southern Industry Co., Ltd., Zhongke Aviation Power Technology Co., Ltd., China Aviation Development Hunan Power Machinery Research Institute, AVIC Engineering Integrated Equipment Co., Ltd.