Kunshan Guoli Electronic Technology Co., Ltd.
A Chinese STAR Market-listed specialist in electronic vacuum devices — vacuum capacitors, high-voltage relays, magnetrons and klystrons — serving semiconductors, new energy, big science and security imaging.
Last updated September 26, 2026
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Overview
Kunshan Guoli Electronic Technology Co., Ltd. (国力电子 / 国力股份, stock code 688103) is a Chinese manufacturer specializing in electronic vacuum devices, headquartered in Kunshan, Jiangsu Province. The company describes itself as a global expert in the application of electric-vacuum technology, with more than sixty years of accumulated experience in producing vacuum electronic components. Its core product families include vacuum capacitors, high-voltage relays, hydrogen thyratrons, magnetrons, klystrons, vacuum interrupters (vacuum switches), AC contactors and power distribution units. Guoli's products are used in demanding high-frequency, high-voltage and high-power environments. The company organizes its market applications around five main areas: semiconductors, new energy, big science, security inspection and irradiation, and energy/electrical equipment. In semiconductors, it supplies high-precision, low-loss, high-reliability vacuum capacitors for semiconductor equipment, positioning these as import-substitution products that break foreign monopolies. In new energy, it provides key components and assemblies for electric-vehicle electrical systems. In big science, its high-power active devices supply efficient microwave sources for particle accelerators and electron-positron colliders. Its security and irradiation devices target high sensitivity and resolution, while its energy and electrical components support stable power-system operation. According to its corporate profile, the company was restructured into Kunshan Guoli Vacuum Electric Appliance Co., Ltd. in October 2000, and later became Kunshan Guoli Electronic Technology Co., Ltd. in March 2007. It was listed on the Shanghai Stock Exchange STAR Market in September 2021 under the ticker 688103. The company has built a global footprint with technical service centers in Japan, Europe and North America, serving more than thirty major countries, and has been selected as a sample enterprise of China's foreign trade export leading index. Guoli's product history page traces its device lineage back to 1966 with vacuum relays, followed by vacuum capacitors in 1970, vacuum interrupters in 1985, AC contactors in 2000, hydrogen thyratrons in 2005, high-power magnetrons in 2007, DC contactors and electron guns in 2010, high-power klystrons in 2016, and power distribution units in 2018. The company operates research entities including the Kunshan Guoli High-Power Device Industrial Technology Research Institute and has established research centers in Suzhou (Gusu Yungu) and Chengdu. Its stated vision is to build a globally leading platform for the R&D, manufacturing and service of electronic vacuum devices.
History
Kunshan Guoli Electronic Technology traces its device heritage to 1966, when it began producing vacuum relays, followed by vacuum capacitors in 1970 and vacuum interrupters in 1985. The modern corporate entity was formed in October 2000 through the restructuring of Kunshan Guoli Vacuum Electric Appliance Co., Ltd. (昆山国力真空电器有限公司). In 2002 the company expanded its production base, and in 2004 it undertook an international management transformation guided by European, American and Chinese experts, while also establishing Kunshan Ruipu Electric Co., Ltd. in July of that year. The Kunshan production base was further expanded in May 2006, and in March 2007 Kunshan Guoli Electronic Technology Co., Ltd. was established. Through the late 2000s and 2010s the company deepened its technical and quality credentials. It completed an ISO 9001-2008 quality management system upgrade in June 2009 and was certified as a high-tech enterprise by the Jiangsu Provincial Department of Science and Technology in September 2009. In 2010 it was certified as one of Jiangsu's first provincial-level engineering technology research centers, established a Jiangsu provincial enterprise academician workstation, and had its vacuum interrupters, vacuum capacitors and high-voltage relays certified as high-tech products. A new manufacturing base was founded in June 2011 and began operation in June 2014. The company passed ISO/TS16949:2009 certification in April 2013. In 2016 it established two subsidiaries: Kunshan Guoli Yuantong New Energy Technology Co., Ltd. in April and Kunshan Guoli High-Power Device Industrial Technology Research Institute Co., Ltd. in December. A defining milestone came in September 2021, when Guoli Electronic listed on the Shanghai Stock Exchange STAR Market under stock code 688103. In May 2022 its new energy factory and R&D office building were put into use. In 2023 it opened the Gusu Yungu R&D center in May and the Chengdu R&D center in October. In February 2026 it established Shenyang Shenhang Intelligent Control Electronics Co., Ltd. Across its history the company has positioned itself as a domestic substitute for imported vacuum electronic components, repeatedly emphasizing that its technologies break foreign monopolies and fill domestic gaps, particularly in semiconductor equipment, new energy vehicles, big science facilities and nuclear fusion research.
- 2026
Shenyang Shenhang Intelligent Control Electronics Co., Ltd. established in February
- 2023
Gusu Yungu R&D center (May) and Chengdu R&D center (October) opened
- 2022
New energy factory and R&D office building put into use in May
- 2021
Listed on Shanghai Stock Exchange STAR Market (688103) in September
- 2016
New energy subsidiary and high-power device research institute established
- 2014
New manufacturing base officially began operation in June
- 2013
Passed ISO/TS16949:2009 quality system certification in April
- 2011
New manufacturing base foundation laid in June
- 2010
Provincial engineering technology research center and academician workstation established; products certified as high-tech products
- 2009
ISO 9001-2008 upgrade; certified as high-tech enterprise by Jiangsu Province
Products and positioning
Global expert in electric-vacuum technology applications; import-substitution supplier of high-reliability vacuum electronic components for semiconductors, new energy, big science and security imaging.
Vacuum capacitors
Fixed, variable, trimming and motor-driven vacuum capacitors for semiconductor matching systems, photovoltaic heterojunction, induction heating, dielectric heating and communications broadcasting.
High-voltage relays
Ceramic vacuum-sealed relays with peak working voltage up to 70 kVDC, used in shortwave communications, communications satellites, radar, submarine cables, RF applications, high-voltage test instruments and semiconductors.
Hydrogen thyratrons
Hot-cathode low-pressure gas discharge devices used as electronic switches in linear accelerator modulators, lasers, radar, pulse modulators, medical linacs and scientific instruments.
Magnetrons
High-power magnetrons for medical electron linacs, irradiation linacs, container security inspection systems, industrial non-destructive testing, microwave industrial heating and road repair.
Klystrons
High-power vacuum electron tubes for microwave frequency amplification and oscillation, used in high-energy physics, China Spallation Neutron Source, irradiation linacs, high-energy industrial CT and high-power microwaves.
Vacuum interrupters (vacuum switches)
Core components of high-voltage power switches that rapidly extinguish arcs and suppress current using vacuum insulation, used in transmission and distribution control systems, metallurgy, mining, petroleum, chemicals, railways, broadcasting and communications.
AC contactors
Vacuum switching tubes with ceramic vacuum arc-extinguishing technology and modular design for high-voltage, high-current, high-power and frequent-operation equipment, including hazardous environments.
Power distribution units
Power distribution units built on DC contactor core components, with simulation of electrical, magnetic and mechanical strength, used in new energy vehicles.
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