About Company:

ChinSun® Bushing is a professional RIS and RIP high-voltage condenser-grade bushings manufacturer and is one of the leading bushings enterprises in China.

  • Registered capital USD476,000
  • Founded in 2010
  • Company area: 19,581m2; 2 workshops, 1 R&D building, 1 office building
  • Employees: 80; among them, there are 12 who are the R&D manpower: 1 professor-level engineer, 1 senior engineer, 3 engineers, 7 assistant engineers.
  • Annual sales quantity: 6,000+ Nos bushings ( Transformer bushing /oil to air bushing, wall bushing, GIS bushing, oil to SF6 bushing, oil to oil bushing, circuit breaker bushing, bus bar bushings)
  • The market share in China is 20%+.
  • National patents are 10+ items. Among them, RIS tech is the most famous one in bushings production. RIS (Resin Impregnated Synthetic) technology is one of our patents of 2016. RIS tech resolves the water-absorption problem of RIP bushing so RIS bushing is easy to store, it can always keep a steady running performance in even hot and humid environments, and it has better seismic performance as the excellent bending performance of the combines both synthetic material’s using and silicone rubber (composite) sheds.
  • The partners in the world: ABB, XD Group, Toshiba, TBEA Group, CRH(China Railway High-speed)…
  • Competing peers: ABB, HSP, MG.
  • ChinSun® Bushing’s location is in Zibo City, China, beside the financial port of this city and about 90km to an international (Jinan) airport and 120km to Qingdao seaport.

Honors in recent years:

2018 – Rated as an excellent supplier by CRH (China Railway High-speed)

2019 – Rated as a provincial high-tech enterprise by the Shandong provincial government.

2021 – Appraised as a gazelle enterprise by the Zibo Municipal Government.

2021 – Rated as a leap-forward development plan enterprise by the Zibo Bureau of Industry and Information Technology.

2021- Awarded as a specialized, refined, special, new technology enterprise by the Zibo Municipal Government.

High-Voltage Bushings RIS Technology
At present, some customers are looking for a paperless bushing. In fact, this is the RIS type bushing. The following patent certificate is the RIS patent certificate issued to us by the State Intellectual Property Office of China. With the latest technology in the industry, in the future, we will continue to provide our agents with the most cutting-edge casing technology and the most favorable price to ensure that they can better serve the local power grid projects, transformer manufacturers, and Hydro projects.

About Team:

Dr. Pei-Guo Lee | Chief Scientist

– Dr. Lee, ChinSun Scientist who holds a Ph.D. in Electrical Engineering from the Moscow Power Engineering Institute after graduating from Tsinghua University. Then, he had worked for China Electric Power Research Institute.

– Lee has been focusing on designing, researching, and developing high-voltage insulation bushings. He has got 10+ national patents including the well-known RIS bushing technology.

– Now, he is a member of CEEIA (China Electronics and Electrical Industry Association).

Huai-Tang Sia
Huai-Tang SiaTechnical VP
Wen-Qi Cho
Wen-Qi ChoFinance VP
Li-Wan Siu
Li-Wan SiuSales VP
Jue-Zhen Lee
Jue-Zhen LeePDD VP


ChinSun® Bushing only supplies professional and safe high-voltage bushings worldwide with efficient delivery.


Save budget for customers; provide growth space for employees; avoid pollution and care for the society.


Support for the future construction of the smart power energy system, help the earth’s power equipment safer, smarter, and more economical.


Looking to the future:

The world’s power grid is being upgraded.

Today, compared to the model of the Internet, the energy grid in most countries and regions in the world today is outdated.

We believe that the future industrial model must be based on intelligent systems, and energy, including power networks, must also be matched with intelligent management; therefore, the old power grids and power plants will be upgraded on a large-scale, while the new smart power system will Being rapidly built to accommodate future management facilitation of intelligent machines.

Whether we admit it or not, change is the norm…

This is the thinking of ChinSun® Bushing to the future, and we can even see the realization of an automated grid with embedded AI that will provide communities, cities, regions, and countries with more cost-effective access to electricity.

What we are doing is to continuously provide high-performance insulating bushings for higher and higher levels of power equipment and facilities to ensure the safe operation of every power project; whenever customer requirements increase, our bushings have already been ready.

This is the future development goal of ChinSun® Bushing.

Bushing products will be your suitable business forever…