
Pinggao Group Weihai High-Voltage Apparatus Co., Ltd. (abbreviated as "Pinggao Weihai") was founded in 1993. It is a wholly-owned subsidiary of Henan Pinggao Electric Co., Ltd., which belongs to China Electric Equipment Group Co., Ltd. The company covers an area of 23,000 square meters, with a building area of 14,500 square meters and a production operation area of 10,000 square meters. Its registered capital is 105 million RMB. It possesses a complete set of test and inspection equipment, including lightning impulse withstand voltage and power frequency withstand voltage (including partial discharge) testing, capable of meeting all factory test requirements for its products. After more than 30 years of development, the company has grown into a GIS manufacturing enterprise with a well-established marketing system, efficient fulfillment and service quality, outstanding technological innovation capability, and reliable product performance and quality. It now has the production capacity of 1,000 bays of 110kV and 220kV GIS per year. The company has been awarded a series of honorary titles, including Shandong Province "Worker Pioneer," Shandong Province "Specialized, High-end and Innovation-driven" Enterprise, Shandong Province "High-tech Enterprise," and Provincial-level Green Factory.
The company currently mainly produces and sells 72.5kV‒252kV GIS, 72.5kV wind turbine tower GIS, and related operation, maintenance, and overhaul services. Its products are sold to East Asia, Southeast Asia, West Asia, the Middle East, South America, and other regions. As the first Chinese company to independently develop a 72.5kV GIS product for wind turbines with international competitiveness, Pinggao Weihai successfully passed the Shandong Province First Set Certification. It has solved technical challenges such as large tilt angles, high vibration frequencies, and high corrosion resistance requirements for offshore equipment, achieving domestic substitution of key equipment for offshore wind power and effectively supporting the accelerated development of the offshore wind power industry. For overseas markets, the company has successfully broken through technological bottlenecks by independently developing China's first 145kV GIS and 170kV GIS, which have been successfully put into operation in countries such as Korea and Nepal, successfully bringing the company's products into the international market.
Looking ahead, the company will accelerate the construction of a modern industrial system and modern management system, focus on enhancing technological innovation and product R&D capabilities, support and serve the construction of the national new-type power system, and strive to become a leading technology leader and market guide in the GIS field in China, as well as a provider of power equipment manufacturing and system solutions.

Huate Magnet Technology Co., Ltd. was founded in 1993 (stock code: 831387). It is a national-level Manufacturing Single Champion enterprise, a national-level specialized, high-end and innovation-driven key "little giant" enterprise, a national-level innovative enterprise, a national-level key high-tech enterprise, and a national intellectual property demonstration enterprise. It serves as the leading enterprise of the Linqu Magnetic Equipment Characteristic Industrial Base and is the chairman unit of the Magnetic Separation Industry Technology Innovation Strategic Union, as well as the vice chairman unit of the China Heavy Machinery Industry Association. The company has established R&D platforms including a national-level postdoctoral research workstation, a comprehensive academician workstation, a provincial key laboratory for intelligent magnetic equipment and mineral processing technology, and a provincial magnetic engineering technology center.
The group covers a total area of 350,000 square meters, with a registered capital of 110 million RMB and more than 1,000 employees. It has more than 10 subsidiaries, including Xinli Superconducting and Australian Huate. It is the only high-tech enterprise in the world that simultaneously possesses permanent magnet, electromagnetic, and cryogenic superconducting high-intensity magnetic separation technologies. For more than 30 years, the group has been committed to the research and development of magnetic technology application equipment and mineral processing equipment, providing EPC+O&M turnkey services for separation production lines. It has transformed from a single equipment supplier into a system service provider, serving more than 10 fields including new energy, mining, coal, power, metallurgy, non-ferrous metals, environmental protection, medical, and firefighting. Its products are exported to more than 50 countries, including Australia, Germany, Brazil, India, and South Africa.
Quality is the life of the enterprise, and innovation is the core driving force for its development. While focusing on independent innovation, the company has established long-term industry-university-research cooperation with the Institute of Electrical Engineering of the Chinese Academy of Sciences, the Institute of High Energy Physics, RWTH Aachen University in Germany, Shandong University, and others. It has undertaken three national "12th Five-Year Plan" science and technology support projects, including "1.5T Superconducting Magnet for Nuclear Magnetic Resonance Imaging," "5T Cryogenic Superconducting Magnetic Separator," and "Vertical Ring High Gradient Magnetic Separator," and has completed more than 50 projects under the National Key New Product Program, the National Torch Program, and Shandong Province Science and Technology Research Plan. A total of 41 products have passed provincial and ministerial appraisals, of which 15 new products, including "Cryogenic Superconducting Iron Remover" and "Extra-Large Intelligent Vertical Ring High Gradient Magnetic Separator," have reached the international leading level. The company has presided over or participated in the drafting of 25 national and industry standards, such as "General Technical Conditions for Electromagnetic Stirrers" and "Forced Oil-Cooled Vertical Ring High Gradient Magnetic Separator." It has applied for and been granted more than 300 national invention patents, with 5 invention patents, including the vertical ring high gradient magnetic separator, filed internationally through the PCT route in more than 50 countries. It has registered 17 software copyrights and has won 92 provincial (ministerial) and municipal-level science and technology awards, as well as 6 China Patent Excellence Awards.
To ensure product quality and optimize the manufacturing environment, the company has passed the GB/T 24001-2016/ISO 14001:2015 Quality Management System Certification, GB/T 24001-2016/ISO 14001:2015 Environmental Management System Certification, GB/T 45001-2020/ISO 45001:2018 Occupational Health and Safety Management System Certification, GB/T 23331-2020/ISO 50001:2018 and RB/T 119-2015 Energy Management System Certification.
The company always adheres to the corporate spirit of "Collaborative innovation, pursuit of excellence." and the core value of "Innovation knows no bounds." Through listing on the New Third Board Innovation Layer, it is committed to the research and development and manufacturing of superconducting magnet technology, magnetic resonance technology, and energy-saving and environmentally friendly high-tech magnetic and electrical products, striving to become a competitive magnetic application system service provider.

Meling Biomedical – “Preserving Life with Advanced Science”
Meling Biomedical, a core subsidiary of Changhong Group—China’s leading home appliance and technology conglomerate—has been dedicated to the research, design, manufacturing, and global distribution of cryogenic and biomedical storage solutions since its founding in 2002.
Leveraging Changhong Group’s deep-rooted manufacturing legacy and cutting-edge innovation platform (established in 1958 and headquartered in Mianyang, Sichuan), Meling Biomedical integrates advanced refrigeration technologies with the evolving needs of the life sciences. This synergy has enabled the company to develop a diverse, high-performance product portfolio that meets the demanding requirements of biomedical laboratories, research institutions, healthcare providers, and public health systems worldwide.
Capital Market Recognition
A major milestone in the company’s growth came in 2022 with its successful listing on the Beijing Stock Exchange (BSE). This achievement established Meling Biomedical as the first BSE-listed company in Anhui Province, while also setting a record for speed: the listing process was completed in just 111 days, with review approval granted within only 37 days. These milestones reflect the company’s operational excellence, robust governance, and strong market confidence.
Innovation-Driven Excellence
Over two decades, Meling Biomedical has cultivated a world-class R&D team responsible for nearly 500 proprietary scientific innovations, including both invention and utility model patents. One standout achievement is the nationally awarded “New Mixed Working Medium Throttling Refrigeration Technology and Its Application,” which earned the Second Prize for National Technical Invention and First Prize from the China Refrigeration Society—affirming the company's leadership in refrigeration science and engineering.
Comprehensive, Intelligent Solutions
With a strong commitment to user-centric innovation, Meling Biomedical offers customized, intelligent solutions across multiple fields:
Biobanks & Sample Storage
Blood Safety & Vaccine Preservation
Pharmaceutical Cold Chain
IoT-Enabled LN2 Storage Systems
Secure Laboratory & Research Facility Storage
These solutions are engineered with a focus on safety, reliability, and environmental sustainability. Meling products are used globally in hospitals, CDCs, academic institutions, public health facilities, scientific laboratories, genetic engineering centers, and the animal health sector.
Advanced Infrastructure & Global Reach
Meling’s R&D facility covers over 5,000 square meters, with manufacturing and testing facilities spanning more than 85,000 square meters. These include fully automated low-temperature equipment production lines, type laboratories, and a comprehensive testing and pilot-scale workshop. Combined with a full-service global support infrastructure and international certifications, Meling products are now exported to over 90 countries across Europe, the Americas, Asia-Pacific, the Middle East, and Africa.
Looking Ahead
Meling Biomedical remains firmly committed to continuous product innovation, expansion of category offerings, and sustainable development. With a strategic focus on green technologies, energy-efficient designs, and diversified global trade models, the company aims to make a lasting contribution to human health and environmental protection.
Meling Biomedical – “Preserving Life with Advanced Science”.
We are committed to becoming the global leader in customized biomedical system solutions.

Wuxi Huaguang Environmental&Energy Group Co., Ltd. is a listed company on the A-share market. It has four major business segments, fifty-three investment subsidiaries, nearly 4,000 employees, and over 8 billion in revenue. The company is a well-known Chinese trademark, a leading enterprise in the Chinese industrial sector, ranked among the top five domestic boiler industry companies, and a leading enterprise in the solid waste industry’s core equipment. It is also a key unit for major environmental protection technology and equipment encouraged by the state, a nationally recognized enterprise technology center, and a national intellectual property model enterprise.
The company aims to build an integrated service capability and adheres to a focus on two core industries: energy and environmental protection. It is deepening two major transformations: transitioning from traditional energy to renewable energy and municipal environmental protection, and shifting from general equipment manufacturing to environmental protection energy engineering contracting and investment operations. The company focuses on integrating key processes from design, manufacturing, construction, to operation, gradually forming a comprehensive industrial chain that supports each other, including power station project investment and financing, power engineering design, power station equipment supply, EPC (Engineering, Procurement, and Construction) for power station projects, power plant operation management, and the development of new energy and new materials. It has formed four major business segments: equipment manufacturing, thermal power operation, municipal environmental protection, and investment operations, accelerating the creation of a leading green low-carbon city solution platform in China.

Shandong Jinbolida Precision Machinery Co., Ltd. is a state-level high-tech enterprise, with 526 acres of licensed land, 36,000 square meters of office area and 160,000 square meters of workshop area. There are 526 employees, including 12 doctoral tutors (senior engineers), 25 senior engineers, 20 postgraduates, and more than 300 assembly technicians. We have also set up a strong research team consisting of 2 academicians of Chinese Academy of Engineering, 2 researchers of Chinese Academy of Sciences, 5 senior engineers, 10 postgraduates and 20 undergraduates.
The company has passed ISO9001 international quality system certification, EU CE certification and national safety production standardization certification. All the products promoted by the company enjoy independent patents and software copyrights, which have filled many technical gaps at home and abroad.
The company has seven sales and after-sales branches and 27 professional service stations in all provinces and cities in China, and has a strong R&D team composed of academicians, doctoral scholars, professors, senior engineers and various technicians, and has the strong innovative strength of applying for a patent every week, and serves you with all our heart!

BBMG Energy Saving Material&Technology (Dachang) Co., Ltd. has become a leading supplier of energy-saving and fireproof, sound-absorbing and noise-reducing, ecological water-saving and precision optical materials and system solutions in China through continuous innovation in production processes and product technologies.
The G-Star® rock wool produced by the leading BBMG electric furnace process has the functions of heat preservation, fire prevention, sound insulation and environmental protection. It is renowned in the market for its characteristics such as high acidity coefficient, low thermal conductivity, high hydrophobicity rate, good mechanical strength, long durability and long fire resistance time limit. It has obtained certifications from numerous authoritative institutions such as national green products, national green three-star building materials, American FM and classification societies. It has been rated as the preferred supplier of China’s top 500 real estate development enterprises and one of the top 10 competitive brands of thermal insulation materials for Chinese real estate suppliers for consecutive years. The products are widely applicable to heat insulation projects in fields such as construction, industry, transportation and shipping.
Jin Haiyan® is a prestigious brand of thermal insulation materials in China, pioneering the application of glass wool in construction and industrial heat preservation, heat insulation, sound absorption and noise reduction projects in China. To date, the Jin Haiyan® thermal insulation materials have provided heat preservation, heat insulation, sound absorption and noise reduction solutions for more than 40 years for national key projects in fields such as civilian and public buildings, power plants, nuclear power plants, LNG storage tanks, long-distance heat transmission pipe networks, workshops, equipment and HVAC systems of chemical plants, and locomotives.
The Yumian® ecological series products with independent intellectual property rights are ecological products specially developed for sponge cities, forest and grass carbon sinks and modern agricultural fields. They are widely applicable to fields of soil and water conservation and ecological conservation such as soilless cultivation, ecological slope protection, mine restoration, three-dimensional greening and rainwater regulation and storage, providing sustainable solutions for reducing urban waterlogging, alleviating the pressure on water treatment systems, improving the quality of groundwater, restoring the natural functions of plants and soil and increasing the yield of fruits and vegetables.

Wuhu Jiahong New Material Co., Ltd. is a high-tech enterprise integrating design, research and development, production and sales, and engineering service. Since the establishment of the company has been focusing on the electric heat tracing product development, production, sales, technical application and engineering services, the products cover the self-limiting temperature, constant power and skin-effect of the three major types of heat tracing cable and supporting heat tracing accessories, and obtained the building mechanical and electrical installation engineering professional contracting qualification, can be a complete realization for the customer to provide one-stop “turnkey” engineering services, since the establishment of the engineering service center, there have been more than 10 years of electric accompanied by heat engineering experience, as a professional electric accompanied by heat manufacturers and system solutions provider, relying on the mature polymer material design and preparation technology, Jiahong New Material develops the electric heat tracing products with excellent performance and stable quality for the domestic and foreign customers, which can be widely used in the industrial fields of petroleum and natural gas, chemical industry, electric power energy, marine vessels, biomedicine and other industrial fields, as well as in the fields of heat preservation, antifreeze, snow melting, heating and other civil and commercial fields.

Chongqing General Industry (Group) Co., Ltd. is a large state-owned high-end equipment manufacturing enterprise with turbine machinery technology and products as its core, first-class technical innovation capabilities and independent intellectual property rights. The company has a nationally recognized enterprise technology center, is a national technology innovation demonstration enterprise, a national intellectual property demonstration enterprise, and a national industrial brand cultivation demonstration enterprise. It has built Chongqing High-Efficiency Centrifugal Compressor Intelligent Technology Industry and Informatization Key Laboratory, Chongqing Turbine Machinery Engineering Technology Center, and a postdoctoral research workstation.
After years of innovative development and technological accumulation, the group has a complete independent design and R&D system, and has established professional R&D teams in pneumatics, noise, structure, materials, and processes. It has accumulated rich experience in turbine machinery design, R&D and manufacturing, and has industry-leading product R&D capabilities.

Hainan Jinpan Smart Technology Co., Ltd. (referred to as “Jinpan Technology”, stock code: 688676) was established in 1997 and is located in Haikou Comprehensive Bonded Zone. It is a national high-tech enterprise integrating R&D, production, sales and services. It has five R&D and manufacturing bases in Haikou, Wuhan, Shanghai, Guilin and Yangzhou, and has companies in the United States and Hong Kong.
Jinpan Technology is a global power equipment supplier. The company uses digital manufacturing models to continuously provide high-quality power supply solutions and high-end equipment for all scenarios such as new energy (including wind energy, solar energy, energy storage, etc.), new infrastructure, high-efficiency energy saving, rail transit, etc., focusing on the research and development, production and sales of dry-type transformer series, energy storage series and other products, and is committed to providing manufacturing companies, especially discrete manufacturing, with first-class full-life cycle digital factory overall solutions.
Jinpan Technology has been unremittingly innovating in technology, management and production models for many years. The company’s products have obtained a series of authoritative certifications at home and abroad, including UL in the United States, KEMA in the Netherlands, CE in the European Union, DNV-GL in Europe, CSA in Canada and China Energy Saving Product Certification, and have reached international advanced levels in terms of performance indicators and comprehensive competitiveness. The company’s products and services are sold in 6 continents and 86 countries around the world.

Our company mainly provides services such as oil and gas pipeline construction and transportation accessories production services. The steel pipes produced by our company are widely used in long-distance transportation pipelines such as natural gas, oil, chemical, electricity, heat, water, etc.