Tianshui Great Wall Switch Factory Group Co., Ltd., founded in 1970, relocated from Beijing to Tianshui to support the "Third Front Construction" campaign. It primarily develops, manufactures, sells, and services 0.4-126kV high, medium, and low voltage complete switchgear and electrical components. It is a large-scale professional manufacturer in China's power transmission and transformation switchgear industry. In 1997, the company merged all of its core operating assets into Lanzhou Great Wall Electric Co., Ltd. and successfully went public in 1998 under the stock code 600192. In March 2008, the company was formally restructured and renamed Tianshui Great Wall Switch Factory Co., Ltd. in accordance with a modern enterprise operating model. In August 2019, to fully implement the reform arrangements of Gansu Electric Equipment Group Co., Ltd. and promote its transformation from a single product provider to a power transmission and distribution industry cluster, the company was renamed Tianshui Great Wall Switch Factory Group Co., Ltd.

After more than 50 years of hard work by several generations, the company has grown into a large, specialized company boasting a team of exceptional professionals, strong technical development capabilities, modern management, and advanced equipment and facilities. With total assets of 1.7 billion yuan, the company currently employs over 1,400 people, including over 400 professional and technical personnel. The company possesses the capabilities to independently develop and research various types of high- and low-voltage switchgear, with an annual production capacity of 10,000 units of medium-voltage switchgear and 10,000 units of medium-voltage circuit breakers. For many years, the company has been committed to revitalizing China's switchgear manufacturing industry and striving to become a world-class power system integration service provider.

Changkai Factory Group Co., Ltd. boasts a leading domestic R&D team for high, medium, and low-voltage switchgear products and consistently prioritizes independent innovation as the driving force behind its development. In 2009, the company's technology center was recognized as a "National Enterprise Technology Center" by the National Development and Reform Commission and five other ministries. In 2011, the company was jointly designated a "National Innovative Enterprise" by the Ministry of Science and Technology, the State-owned Assets Supervision and Administration Commission of the State Council, and the All-China Federation of Trade Unions. Over the years, the company has participated in the formulation of 46 national and industry standards and specifications, obtained 27 national invention patents, 101 utility model patents, and one design patent. It has also undertaken projects under the National 863 Program, the Torch Program, and the National Science and Technology Cooperation Program, further enhancing the "Great Wall" brand and significantly promoting technological innovation in the power transmission and distribution switchgear industry. The company offers a comprehensive and reliable product portfolio encompassing large-parameter switchgear, intelligent medium-voltage switchgear, medium-voltage high-reliability vacuum circuit breakers, gas-insulated medium-voltage switchgear for harsh environments such as high altitude, and nuclear power Class 1E switchgear, continuously meeting market development needs.

To ensure the full realization of its product quality goals and customer requirements, the company was the first in its domestic industry to establish an ISO9001 quality management system in 1994. It subsequently established an ISO14000 environmental management system and an OHSAS18000 occupational health and safety management system, ensuring effective operation and continuous improvement, becoming the first company in the industry to achieve "three-in-one" certification. The company's high- and medium-voltage products have passed PCCC product certification, while its low-voltage products have obtained the national mandatory "CCC" certification. Key products have also received the EU CE certification and the Dutch KEMA certification test reports.

Changkai Factory Group adheres to the philosophy of integrating modern information technology with advanced management, achieving modern enterprise management through information system integration services. Since 1996, the company has completed CAD, PDM, ERP, and CIMS projects (listed in the Ministry of Science and Technology's 863 Program and approved). In 2002, the company was the first in the industry to implement an enterprise resource management information system. That same year, it was designated as one of the first informatization demonstration enterprises by Gansu Province. The company boasts state-level "air-insulated digital workshops" and "gas-insulated digital workshops." Through the application of ERP, PDM, MES, and WMS systems, it has achieved streamlined production, intelligent manufacturing, process-based inspection, and information management for switchgear and switch components.

Changkai Factory Group's products are widely used in over 20 industries, including power generation, transmission and distribution, petroleum and petrochemicals, metallurgy, building materials, railways, coal, and municipal construction. They have made outstanding contributions to key national projects, including the Three Gorges Project, the Qinghai-Tibet Railway, China Aerospace, the Three Autonomous Regions and Two Prefectures, the "Hualong One" Zhangzhou Nuclear Power Plant, the South-to-North Water Diversion Project, the West-to-East Gas Pipeline, and national defense construction.

Changkai Factory Group has received numerous honorary titles, including the "National May 1st Labor Award," "National Advanced Unit for Spiritual Civilization Construction," "National Integrity Demonstration Unit (AAA-level)," "China's Most Influential Brand in the Electrical Industry," and "China's Top 500 Machinery Industry." In 2010, the company's "Great Wall" trademark was officially recognized as a "Well-known Chinese Trademark" by the State Administration for Industry and Commerce. Party and state leaders such as Jiang Zemin, Zhu Rongji, Zou Jiahua, Li Changchun, and Zhao Leji have visited the company and given it high praise.