Tangshan High Voltage Electric Porcelain Co., Ltd. was founded in 1952, after more than 70 years of vicissitudes of life, from Tangshan Electric Porcelain Factory has gradually evolved into a modern enterprise with a registered capital of 380 million yuan and an area of 234 acres, and is an important member of Beijing Jinyu, one of China's top 500 enterprises, and occupies a significant position in the industry. The company focuses on power station insulator products, and the leading products are 110 kV ~ 1100 kV AC, ± 500 kV DC and ± 800 kV DC rod post insulators. It is the backbone enterprise of China's insulator arrester industry, and has the title of "stick king". From 1998 to 2009, the production capacity and market share of rods were in the forefront of the industry in the country, and the efficiency index ranked first in the country. At present, Tangshan High Voltage Electric Porcelain Co., Ltd. has more than 3 million domestic power grids in operation, and there has never been a safety accident. The company has four isostatic pressing (dry) production lines and one wet production line at the domestic level. The company has X-ray fluorescence spectrometer imported from Bruker in Germany and the true specific gravity testing machine imported from Maccura in the United States to ensure that the incoming raw materials meet the requirements of technical standards and lay a good foundation for the company's excellent product quality; There are 20 sets of CNC trimming machines to ensure the quality of insulator molding; There are 9 fully automatic control drawer kilns that digest and absorb American technology for gas isothermal high-speed burners to ensure the quality of insulator firing; There are 101 sets of glue binding machines with Japanese technology to ensure the accuracy of insulator glue binding. The company has strong technical force, and has independently developed ultra-high voltage 800 kV AC, UHV 1000 kV AC, and ± 800 kV DC products, which has filled the domestic gap, and the product technology level has reached the front-end level of similar products in the world. Among them, the self-developed ±800 kV DC UHV pillar porcelain insulator is applied to the world's first ± 800 kV UHV DC transmission demonstration project: Xiangjiaba-Shanghai Project; The self-developed 1000 kV AC UHV pillar porcelain insulator has been put into operation in the first AC UHV demonstration project in China and abroad: Jindongnan - Nanyang - Jingmen (654 kilometers in length), which is the starting and demonstration project for the development of UHV transmission technology in China. The self-developed ±1100 kV UHV DC pillar insulator is used in the first domestic and international ±1100 kV UHV DC transmission project: Changji - Guquan (3324 kilometers in length) was put into operation, which is currently the world's highest voltage level, the largest transmission capacity, the farthest transmission distance, the most advanced UHV transmission project, and the successful application of this insulator represents the highest level of the industry. On August 2, 2018, the company won the bid for the 2022 Beijing Winter Olympics key supporting project, the first domestic and international ± 500 kV flexible DC transmission project: Zhangbei flexible DC project, which meets the needs of renewable energy acceptance and transmission of new energy in Zhangbei area, China, and provides 100% clean energy power supply for the 2022 Beijing Winter Olympics. In July 2019, the Project Department of Zhangbei State Grid awarded our company the title of "Building State Grid Boutique and Creating First-class Service".

Tangshan High Voltage Electric Porcelain Co., Ltd. products are widely used in national large-scale key construction projects and transformations, in the Gezhouba Project, the Three Gorges Project, the Lingbao DC converter station project, the 750 thousand volt Northwest Power Transmission and Transformation Project, the West-to-East Power Transmission Project and the 38 AC and DC UHV power transmission and transformation projects that have been in operation, have directly or indirectly provided a large number of electric porcelain products.
With good product quality and reputation, the company has established good business relations with enterprises such as Siemens, ABB, General Electric, COELME, South African State Grid, etc. Pillar insulator products not only dominate the domestic market, but also are exported to more than 20 countries and regions such as Italy, Germany, India and along the "Belt and Road".