Chongqing Transformer Co., Ltd. specializes in producing large transformers of 220kV and above. As a continuing enterprise, Chongqing Transformer focuses on manufacturing small and medium-sized transformers of 110kV and below.

Chongqing Transformer Co., Ltd. relocated to the high-tech zone of Tongliang District in 2012 for environmental compliance, with a registered capital of 108 million RMB. It is located at No.19 Jinshan Avenue, Tongliang Industrial Park, close to the Chongqing-Suzhou Expressway, with convenient transportation. Chongqing Transformer is a key enterprise under Chongqing Machinery & Electronics Holding (Group) Co., Ltd. The company has applied for a total of 184 patents, with 50 currently valid patents, including 13 valid invention patents and 3 software copyrights. It holds general contracting qualifications for power engineering and mechanical and electrical engineering, as well as a Level 3 permit for power facility installation (repair and testing). The company has comprehensive management systems for quality, environment, occupational health, and services.

Chongqing Transformer owns advanced production and testing equipment, including the German Georg silicon steel sheet cutting line and the German Hübers epoxy resin casting production line. It primarily produces oil-immersed transformers of 110kV and below, epoxy resin cast dry-type transformers of 35kV and below, various special transformers, as well as high- and low-voltage intelligent switchgear, distribution boxes, and box-type transformers. These products are widely used in power, grid, highway, airport, rail transit, hospital, school, industrial, and construction sectors.

Tianjin Ping Gao Intelligent Electric Co., Ltd., established in 2012, is a subsidiary of Pinggao Electric under China Electrical Equipment Group and a key enterprise in electrical equipment manufacturing supervised by the State-owned Assets Supervision and Administration Commission of the State Council.

The company covers an area of 465 mu, with a total investment of 1.4 billion yuan. It boasts 3 digitized modern factories and 29 fully automated production lines, mastering the research and manufacturing technologies for core components such as vacuum interrupters, solid-sealed pole units, indoor vacuum circuit breakers, and operating mechanisms, as well as complete switchgear equipment including switch cabinets, gas-insulated cabinets, ring main units, box-type substations, pole-mounted switches, and transformers.

The company's leading products are widely used by major energy state-owned enterprises such as State Grid Corporation of China, China Southern Power Grid, and the "Big Five and Six Small" power generation groups, as well as other critical sectors. With its strong technical capabilities and exceptional manufacturing standards, the company has been recognized as a National High-tech Enterprise, a National Specialized, High-end and Innovation-driven "Little Giant" Enterprise, a National Intellectual Property Advantage Enterprise, a National Green Factory, and a National Outstanding Intelligent Factory.

As a leading supplier of large-scale high-end power equipment in China, Tianjin Pinggao will consistently uphold its corporate spirit of "Pursuing Excellence, Striving for First-class" and fulfill its mission of "Empowering Smart Electrical Systems, Leading Green Energy." The company is committed to continuously providing customers with advanced and reliable power equipment and system services.

Ningxia Tiandi Benniu Industrial Group Co., Ltd. is a national high-tech enterprise, a key R&D and manufacturing base for national coal underground conveying equipment, and a Manufacturing Single Champion Enterprise in the scraper conveyor industry. It is affiliated with China Coal Technology & Engineering Group. The company currently employs more than 2,500 staff, with total assets of 6.45 billion yuan. It has 2 wholly-owned subsidiaries, 3 equity participation companies, 3 branches, and 7 production plants, covering an area of nearly 1.1339 million square meters. Among them, there are 308 engineering and technical personnel and 51 middle and senior managers; 94 personnel hold various senior professional titles.

The company possesses more than 1,300 sets of production equipment, including more than 200 sets of large, heavy, rare, precision, and CNC equipment. It has more than ten automated production lines, such as automated welding production lines, automated heat treatment production lines for scrapers, automated pin shaft production lines, and gear track induction quenching units. Its technical equipment level leads the domestic industry, and its manufacturing and processing capabilities have reached the advanced level of the industry. The company holds a national first-level metrology unit and has established a standardized and scientific metrology management and testing system based on the "Metrological Confirmation System for Measuring Equipment." It is equipped with more than ten advanced foreign instruments and equipment, such as ICAP plasma emission spectrometer, HEXAGOM three-coordinate measuring machine, CMT5305 universal testing machine, and P100L gear measuring center, as well as material testing machines, fatigue testing machines, 2000kW reducer test benches, and other performance testing equipment, along with various types of inspection equipment (such as metallographic analyzers, oscilloscopes, etc.). Its testing and inspection level has reached the top level in the industry.

The company's leading products are mining scraper conveyors, transfer conveyors, crushers, self-moving tails for belt conveyors, and hydraulic supports for underground coal mining faces; washing equipment, raise boring machines; and other industrial chain products including reducers, chains, connecting links, and coal machinery remanufacturing. The products cover 8 major categories, 60 series, and more than 1,000 specifications. The scraper conveyors have a full range of products, which can meet various geological conditions with mining heights of 0.8–10 meters and working face inclinations of 0–60°, as well as supporting needs for various coal mining processes such as fully mechanized mining and fully mechanized caving. The conveying capacity of scraper conveyors is 450–8,000 tons/hour, with trough widths of 630–1,600mm and installed power of 180–7,000kW. The single mining face length can reach more than 450 meters. The transfer conveyors have a conveying capacity of 500–8,500 tons/hour, with trough widths of 630–1,800mm and installed power of 90–1,200kW. They are matched with scraper conveyors using end discharge, cross side discharge, overlapping side discharge, and other unloading methods to ensure smooth transfer of raw coal from the working face. The crushers have a crushing capacity of 500–9,000 tons/hour and installed power of 90–1,200kW. When used in combination with transfer conveyors, they enable continuous conveying of raw coal from the coal mining face. The reducer products include 22 basic types, 42 series, and 5,000 varieties and specifications. Mining chain products cover various models and specifications of high-strength mining round link chains, compact chains, and connecting links from 22×86 to 60×181/197mm. At the same time, the company provides conveying systems, washing and environmental protection equipment, and drilling equipment for non-coal mines, construction machinery, port machinery, and other industries. The products are sold in 22 provinces/autonomous regions across the country, more than 2,000 coal mines, and exported to countries such as Turkey, India, Ukraine, Russia, and the Democratic Republic of the Congo. The market share of heavy and ultra-heavy products reaches 40%.

Since its establishment during the third-line construction in the 1960s, the company has always adhered to the corporate purpose of "benefiting society, benefiting customers, and benefiting employees." It actively adapts to the new normal of the market economy, focuses on key technologies and product services for mining conveying equipment, vigorously implements mechanism innovation, management innovation, technological innovation, service innovation, and cultural innovation, and continuously provides "optimal solutions" to the coal machinery industry and coal mine users. It has developed a variety of innovative products for large-scale and intensive modern mines in China, promoted industrial upgrading, and formed a diversified industrial chain centered on underground scraper conveying complete equipment series, reducer series, mining chain series, support equipment series, high-end drilling rig series, and coal machinery maintenance. With high-quality products and high-end service systems, it works hand in hand with customers at home and abroad for win-win cooperation.

Boer (Wuxi) Power System Co., Ltd., originally founded in 1985 as Wuxi Power Instrumentation Complete Equipment Factory, currently has a registered capital of USD 71 million. It operates two major production bases in Wuxi and Yixing, with a total production area exceeding 110,000 square meters and over 800 employees, providing customers with one-stop power distribution system solutions. For four decades, the company has adhered to its core values of "Heart as Vast as the Ocean, Achieving Customers, Honoring Commitments, Never Giving Up," focusing on the design, R&D, manufacturing, and sales of switchgear complete equipment technology and products. It actively collaborates with world-leading multinational companies such as Schneider Electric, Siemens, and Sydenham (under Temper). Since 1998, Boer was the first to obtain authorization for licensed production of Schneider Electric branded cabinets and became Schneider Electric China's largest and most comprehensive platinum partner. In 2011, Boer became the global processing center for Sydenham's LVset, MVset, and XGreen series of medium- and low-voltage complete equipment. Partnering with Indonesian electrical giant AGN to establish a joint venture, it has expanded into the Southeast Asian market. In 2023, Boer collaborated with Huawei to become a HarmonyOS partner, continuously breaking through in the field of intelligent power distribution.

The company's product portfolio fully covers all types of medium- and low-voltage switchgear and power grid automation management systems up to 40.5kV, primarily under the Sydenham, BOER, Schneider, and ABB brands. Its product lineup includes LVset, MVset, XGreen, XSmart, Xunit, XGS, MNS, ZBW, WCS, GZDW, EA8, MVnex-HP, PIX, SM6, RM6, OKKEN, BLOKSET, PRISMA, and other medium- and low-voltage complete equipment series and solutions. These are widely applied across industries such as transportation, infrastructure, building construction, telecommunications, and healthcare, with products safely serving more than half of the countries and regions worldwide.

In October 2010, at the Hong Kong International Financial Centre, Boer successfully listed on the Hong Kong Stock Exchange under Boer Power Holdings Limited (Stock Code: HK01685). The successful IPO not only provided broader development opportunities but also imposed higher standards on the company. The future is an extension of the past—past achievements are merely the foundation for new successes. Today's Boer, with greater enthusiasm and an open mindset, upholds its "Branding, Diversification, Internationalization" sustainable development strategy, striving to build Boer excellence and achieve its "100 Billion in Revenue, 100 Years of Legacy" brand vision.

Beijing Jianlong Heavy Industry Group Co., Ltd. (Abbreviated as “Jianlong Group”) is a large enterprise group integrating industries such as resources and steel. The group’s operations encompass various activities including resource exploration, mining, mineral processing, smelting, processing, and product manufacturing, possessing a relatively complete industrial chain. Currently, Jianlong Group has the capacity to mine and process 44.3 million tons of ores (including iron, copper, molybdenum, vanadium, and phosphate), over 43 million tons of crude steel smelting and rolling capacity, 150,000 deadweight tons of shipbuilding capacity, 15,000 tons of vanadium pentoxide smelting capacity, as well as a production capacity of 4.58 million tons of coke, 80 million sets of bearings, and the design and manufacturing capabilities of 350 MW conventional power station boilers, high-pressure heaters exceeding 600 MW, large chemical containers, and stainless steel containers.

Beijing Zhengzhuo Engineering Technology Co., Ltd. (hereinafter referred to as Zhengzhuo) is a national high-tech enterprise and a specialized, high-end and innovation-driven SME in Beijing, established in December 2000 and approved by national market supervision authorities. As a company dedicated to power supply and power improvement solutions, Zhengzhuo has been engaged in product research and development, production, and sales activities in accordance with laws and regulations within its approved business scope for over twenty years. The company has consistently received an AAA credit rating, ISO 9001 quality management system certification, ISO 14001 environmental management system certification, and ISO 45001 occupational health and safety management system certification, and has become a key supplier to hundreds of government agencies and enterprises. Zhengzhuo is a major supplier under the uninterrupted power supply framework agreements with PetroChina, Sinopec, and CNOOC.

In 2010, the company registered the Zhengzhuo trademark with the National Intellectual Property Office and updated the registration in 2020. The Zhengzhuo factory, located in Zhongshan, Guangdong, covers more than 3,000 square meters and primarily manufactures a variety of power supply products under the Zhengzhuo brand with independent intellectual property rights, with an annual production capacity of hundreds of units. Zhengzhuo's product lineup includes IGBT hydrogen production power supplies, industrial integrated lithium battery systems, dynamic voltage stability control systems (VCS), uninterruptible power supplies (UPS), DC power supplies, static transfer switch systems (STS), intelligent battery inspection instruments, and related distribution products. In 2018, Zhengzhuo independently developed and produced the Zhengzhuo Voltage Stability Control System (VCS) to address voltage sag issues, which has been successfully used in multiple 1-megawatt or larger capacity devices at Sinopec's integrated refining and chemical plant, receiving positive feedback from users. Based on customer and market demand, Zhengzhuo introduced an industrial lithium battery system solution in 2019, which has since been applied in various projects. In 2024, Zhengzhuo signed a strategic cooperation agreement with a national laboratory to jointly develop the "IGBT Hydrogen Production Power Supply Key Technology Research for Electrolyzers with a Capacity of 4000 Standard Cubic Meters and Below" project to enter the green hydrogen market. Zhengzhuo's products currently hold certifications from TIER Center, Power Equipment Testing Center, CQC Green Certification, CE European Union Certification, Cape Certification, and Sabre Certification. The IGBT hydrogen production power supply has obtained a national laboratory test report and a scientific and technological evaluation report, achieving a leading level in China. Zhengzhuo is also actively involved in the formulation of national and industry standards, focusing on technological innovation and application. The company has obtained over 40 intellectual property rights, including invention patents, software copyrights, and utility model patents.

Dalian Insulator Group Co., Ltd. is a high-tech enterprise specializing in the R&D, production, and sales of line porcelain insulators, composite insulators, substation porcelain, and electrical appliances. With a century of development, it has accumulated extensive operational experience, offering reliable product performance and a highly reputable brand.

The company's business segmentation falls within the insulator and surge arrester industry of the power equipment sector. Its products are primarily used in transmission lines with the highest national voltage levels, serving insulation and conductor support functions. Alongside other transmission and transformation equipment, they form transmission networks of various voltage levels, ensuring power transmission. The company is one of the few in the industry capable of independently developing, manufacturing, and deploying both ultra-high voltage porcelain and composite insulators in transmission lines.

The company covers an area of 230,000 square meters and is equipped with comprehensive production and testing facilities. A scientifically structured process layout provides a solid foundation for large-scale manufacturing.

In 2022, the company built a new 158,000-square-meter plant, integrating its latest porcelain insulator manufacturing technology and equipment, with an investment exceeding several hundred million yuan.

The company integrates the industrial chain with the innovation chain and drives industrial development through innovation. Relying on its enterprise technology center platform, it was the first in the industry to successfully develop and mass-produce AC/DC 420kN and 550kN products, breaking foreign monopolies in this field. It pioneered domestically the cylindrical head products for mechanized production and new aluminum oxide formulation products, enhancing product performance while leading industry advancements. The company has won the State Council’s Science and Technology Progress Award three times and received multiple mechanical industry technology progress awards. By aligning with China's power grid demands for efficiency improvements, the company continuously refines its products and has supplied nearly 10 million insulators for over 40 ultra-high voltage projects nationwide.

Deeply engaged in the suspension porcelain insulator sector, the company focuses on independent innovation and collaborative R&D. It possesses full-series AC/DC insulator development and production capabilities. In collaboration with Tsinghua University, it has developed composite insulators and, leveraging its cross-disciplinary expertise in porcelain and composite insulators, successfully created hybrid insulators, contributing to insulation replacement in power grids.

Henan Pinggao Electric Co., Ltd. is a listed company controlled by China Electric Equipment Group Co., Ltd. and was listed on the Shanghai Stock Exchange on February 21, 2001 (stock code: 600312). The company is a pillar enterprise in China's electrical industry for major technical equipment and serves as the national R&D and manufacturing base for high-voltage, extra-high-voltage, and ultra-high-voltage switchgear as well as complete substation equipment.

The company's business scope covers the R&D, design, manufacturing, sales, installation, testing, maintenance, service, and complete system supply of power transmission and distribution equipment and its core components; its core business is the R&D, manufacturing, sales, installation, and maintenance services of medium-voltage, high-voltage, extra-high-voltage, and ultra-high-voltage AC and DC switchgear. Main products include 40.5kV~1100kV SF₆ gas-insulated metal-enclosed switchgear (GIS-HGIS), 40.5kV~1100kV SF₆ tank-type circuit breakers, 12kV~1100kV SF₆ porcelain post circuit breakers, DC switchyard complete equipment, 12kV~1100kV AC disconnectors and grounding switches, 10kV~1120kV DC disconnectors and grounding switches, 72.5kV~550kV combined disconnector-circuit breakers, 40.5kV~1100kV gas-insulated metal-enclosed transmission lines (GIL), high-voltage electrode boilers, 10kV~40.5kV vacuum circuit breakers, complete electrical equipment sets, railway electrification switchgear, 10kV~220kV vehicle-mounted mobile substations and prefabricated modular substations, online monitoring devices for transmission and transformation equipment, instrument transformers, surge arresters, hydraulic/spring operating mechanisms, insulators, composite insulators, wall bushings, SF₆ gas recovery and purification devices, vacuum interrupters, mechanical processing, surface treatment, and other core supporting components or processes.

Shanghai Electric is a global leader in industrial solutions, specializing in energy and industry sectors. Our expertise spans energy generation and transmission, intelligent manufacturing, and automation systems. We cover a comprehensive industrial value chain that integrates "marine, transportation, aerospace, grid, and petrochemical industries." By leveraging cutting-edge technological innovations, we empower industries and deliver green, sustainable value for a brighter future.
Operating on a global scale, we drive innovation across a wide range of industries. In the energy sector, we provide integrated solutions for integrated "wind-solar-storage-hydrogen" multi-energy systems and "generation-grid-load-storage" ecosystems. In the industrial sector, we leverage our advanced manufacturing expertise to strengthen industrial solutions across marine, transportation, aerospace, grid, petrochemical, digital healthcare, and intelligent building systems, among others.
Guided by the principles of "openness, coordination, and win-win cooperation", we are dedicated to building strong partnerships with global customers, industry partners, and our workforce. Together, we aim to deliver exceptional industrial solutions, foster innovation, and promote sustainable development worldwide.

The Lubricant Company is a specialized lubricating oil company under China National Petroleum Corporation, integrating production, research and development, sales, and services.

To address the competitive environment of the globalized and market-oriented lubricating oil industry, in accordance with the group company’s “Five Unifications and One Centralization” strategy—unified resource allocation, unified product standards, unified network layout, unified price management, unified research organization, and centralized efforts to promote brand names—the Lubricant Company was officially established on December 19, 2000. It integrated brands such as Feitian and Qixing, launching the “Kunlun” brand and the “Gem Flower” logo. The company currently has 9 functional departments, 2 directly affiliated institutions, 22 secondary units, and 3,451 employees. It has production bases or sales units in 15 cities, including Beijing, Shanghai, Guangzhou, Lanzhou, Daqing, Dalian, Karamay, Panjin, Taicang, Chengdu, Xiamen, and Wuxi, and 3 research centers in Lanzhou, Dalian, and Shanghai. In 2023, refining specialty products such as general base oil, white oil, and rubber fillers were incorporated into the Kunlun brand. The company can currently produce 20 major categories with over 700 varieties of products, including automotive oils, industrial oils, marine oils, greases, additives, metalworking fluids, and automotive auxiliary products, covering industries such as automotive manufacturing, construction machinery, steel and coal, wind and nuclear power, high-speed rail, and ships. It is the preferred oil for equipment and supporting services for major enterprises such as SAIC Motor, Dongfeng, Baowu, Shougang, TBEA, and CSSC.

The Lubricant Company possesses industry-leading research and development capabilities, undertaking key national research projects. It has won three out of four national awards in the lubricant industry and received the 24th China Patent Excellence Award in 2023. The company maintains a leading position in China in fields such as gear oil, internal combustion engine oil, and naphthenic oil. It holds 233 authorized patents, including 164 invention patents, and has developed or revised 166 national and industry standards and 609 enterprise standards. The company operates 2 CMA-accredited laboratories and 9 CNAS-accredited laboratories, with over 1,380 sets of various bench test and large-scale simulation test equipment.