Tenyen is located in Songjiang District, Shanghai and Liyang City,  Jiangsu Province.  Specializing in R&D, production and sales of high-voltage insulation products, gas-insulated high-voltage test equipment, and online monitoring systems for substations,and also specializing in substation maintenance services.

Tenyen has a technical team composed of senior scientific researchers such as doctors and masters, obtained a number of patents, established good cooperative relations with well-known universities such as Xi'an Jiaotong University and East China University of Science and Technology. Tenyen has been awarded the honor of  "Jiangsu Double Innovation Enterprise" in 2021, with rich industry experience and strong technical strength.

Adhering to the quality policy of "Quality Leadership and Customer Satisfaction", Tenyen established a process system with reference to TS/16949. The system has complete manufacturing, inspection and testing capabilities, and implement strict factory quality control. 

Tenyen has first-class production, inspection,testing equipment and advanced production technology. Adhering to the tenet of "creating high-quality goods with the spirit of craftsman; serving customers with integrity", Tenyen is committed to providing first-class electrical insulation products and services to customers around the world.