
Originally established as Panasonic Appliances Air-conditioning and Refrigerantinon (Dalian) Co., Ltd. on September 11, 1992, Sonyo Refrigeration (Dalian) Co., Ltd, is a manufacturer engaged in the research and development of resource recycling technology, as well as the design, production, manufacturing, sales, after-sales service, and system engineering of environmental protection equipment, new energy power equipment, specialized equipment, refrigeration and heating equipment, and related devices. The company currently operates in three main business areas: Lithium Bromide Absorption Chiller (ABS) Business Area, Gas Heat Pump Air Conditioning (GHP) Business Area, and Thermal Energy Equipment (SV) Business Area.
Lithium bromide absorption chiller (ABS) offers various types, including steam type, hot water type, direct-fired type, heat pump type, and flue gas utilization type. The introduction and innovation of heat pump technology have brought revolutionary changes to heating systems, making significant contributions to urban energy conservation and large-scale development.
Gas heat pump air conditioner (GHP) includes refrigerant multi-split units and chiller units. The company's GHP products are equipped with specialized gas engines for vehicles, utilizing primary clean energy, making them particularly outstanding in environmental protection. GHP units offer superior heating performance in winter compared to electric air conditioners, opening new markets in the air conditioning industry. Thermal energy equipment (SV) vacuum hot water units can be used for heating, sanitary hot water, and multi-purpose applications, operating under negative pressure, making them safe, energy-efficient, and environmentally friendly products.
Through years of development and innovation, our products have gained widespread favor among global customers. As a high-tech enterprise, the company has made outstanding contributions to China's energy conservation and environmental protection efforts. In the future,the company will continue to strive for a cleaner and more sustainable future for humanity

Tellhow Software Co., Ltd. is a leading domestic energy internet industry solution service provider, with R&D centers in Nanchang, Shanghai, Beijing, Nanjing, Xi'an, Guangzhou, Chengdu, etc. The company has long been rooted in the field of energy internet and provides digital and intelligent products and solutions, including power intelligent dispatching and operation product series, power equipment intelligent management products, big data and artificial intelligence application products, smart energy cloud platform and solutions; the company's typical products and solutions have been widely promoted and applied in 31 provincial administrative regions across the country, and it is a market leader in the field of power grid dispatching management and equipment operation and inspection.

Tianjin Anshengda Fireproof Material Co., Ltd. has a registered capital of 26 million yuan and occupies an area of 30,000 square meters. It is an integrated manufacturer engaged in the research, development, production, and construction of fireproof materials. The main products include fireproof bags (fire barriers), organic fireproof sealing materials (fire clay), inorganic fireproof sealing materials, fireproof partitions, fireproof coating boards, composite steel fireproof boards, fire barriers, fireproof sealing strips, fireproof sealants, high-polymer fireproof sealing agents, gap fireproof sealing, fireproof cloth, fire blankets (fire extinguishing blankets), fireproof wrapping materials, explosion-proof clay, cable fireproof coatings, steel structure fireproof coatings, tunnel fireproof coatings, fireproof embankment coatings, decorative fireproof coatings, and wood-specific fireproof coatings.
The company has 36 advanced production devices and 68 testing devices, with a total of 58 employees, of which 15% are technical personnel. They have a strong technical team with many years of construction experience, solid technical skills, and a hardworking attitude in fireproof sealing and coating applications. The company has established departments for technology, production, quality inspection, sales, finance, and after-sales service, and has obtained ISO 9001:2015, ISO 14001:2015, and ISO 45001 standard quality management system certifications, along with occupational health and safety management system certification. This strict quality and occupational health and safety management system ensures high quality and stability of the products.

浙江金利华电气设备有限公司成立于 2018 年 2 月,是上市公司金利华电(股票代码:300069)全资子公司,为国内少数掌握成熟交直流特高压玻璃绝缘子制造技术并拥有供货业绩的领先企业,也是国家电网、南方电网核心供应商,专业从事 10kV 至 1000kV 高压、超高压及特高压交直流输电线路用高性能玻璃绝缘子的研发、生产与销售。公司位于浙江省金华市金东区傅村镇,占地 144 亩,现有员工 260 余名,其中技术研发人员 30 余人,为技术创新与品质提升提供坚实人才支撑。
公司秉持 "思前沿技术,创一流品质" 核心理念,深耕新型高强度玻璃绝缘子制造及特高压输变电绝缘器材研发领域,建有省级企业技术中心与省级研发检测中心,构建产学研深度融合的创新体系,与浙江大学等高校院所建立长期合作。公司在玻璃材料、产品制造及工业设计三大领域形成 7 项核心专有技术,累计获国家专利 50 余项(其中发明专利 7 项),同时作为玻璃绝缘子行业标准主要制定单位,技术实力稳居行业第一梯队。
质量管控方面,公司产品严格遵循 GB/T 1001.1 国家标准及国际 IEC 标准,通过 ISO9001 质量管理体系、ISO14001 环境管理体系等认证。凭借过硬实力,公司先后获评国家高新技术企业、浙江省专精特新中小企业、浙江名牌产品等荣誉,企业信用等级达 AAA 级。
2024 年,公司全面推进数字化智能制造升级,引进德国沃特克两条全自动成型生产线,联合浙江大学研发应用国内首台套全自动数字胶装生产线,实现全流程自动化,形成 "2 炉 4 线成型 + 2 条胶装线" 完整布局,常规产品年产能达 600 余万片,可高效满足市场批量供货需求。
公司积极践行双碳目标,投资超千万元实施玻璃窑炉烟气脱硫、除尘、脱硝一体化深度治理,烟气排放达浙江省环保绩效 A 级标准,同时建成 2MWp 光伏并网电站。公司产品已成功应用于 300 余项国家重点及 500kV 以上输电工程。未来,公司将持续深化管理、拓展全球市场,矢志打造世界一流绝缘子品牌,为全球电力基础设施建设贡献力量。

Chonfar Engineering and Technology Co., Ltd. is a comprehensive engineering technology service enterprise integrating research, design, survey, supervision, consulting, and general contracting, affiliated with Sinochen Holdings Corporation Ltd.
The company covers an area of 130 mu with a registered capital of 120 million yuan. It currently employs nearly 500 staff members, including 1 National Master of Engineering Survey and Design, 5 experts receiving State Council allowances, 31 professor-level senior engineers, 132 senior engineers, 211 engineers, and 314 registered engineers of various types.
The company holds Class A qualifications for the petrochemical and pharmaceutical industries, mining, architecture, municipal sanitation engineering, and environmental engineering design; Class A qualifications for geotechnical engineering survey; Class A qualifications for supervision in architecture, chemical, mining, and municipal engineering; and Class A qualifications for engineering consulting. It also holds Class B qualifications for design in metallurgy, planning, municipal drainage, municipal gas, wastewater treatment, air pollution control, and pollution remediation engineering; Class B qualifications for hydrological geology and engineering survey; Class B qualifications for supervision in power and smelting engineering; as well as qualifications for pressure vessel and pressure pipeline design and Class 1 qualifications for environmental engineering contracting. The company is capable of undertaking survey, design, supervision, consulting, and general contracting for large and medium-sized projects in mining, chemical and petrochemical pharmaceutical industries, industrial and civil construction, municipal public works, and environmental protection engineering.
Since its establishment, the company has completed over 4,000 domestic and international projects in survey, design, supervision, consulting, and general contracting, and undertaken more than 600 national, provincial, and municipal research projects. It has applied for 216 invention patents, with 191 authorized, including 2 PCT international patents. The company has led or participated in drafting over 30 national and industry standards and specifications. It has established 1 national-level technological innovation platform, 3 provincial/ministerial-level technological innovation platforms, and 1 municipal-level enterprise technology center. The company has mastered key core technologies in fields such as potassium, phosphorus, lithium, environmental protection, and fine chemicals, serving clients across nearly 30 provinces, municipalities, and autonomous regions in China, as well as countries including Turkey, Bolivia, Canada, Australia, Ethiopia, Congo (Brazzaville), Thailand, and Laos.

Nanjing Mankate Science&Technology Co., Ltd., established in 2004, is a high-tech enterprise dedicated to the R&D, production, and sales of reinforcement materials, mechanical anchor bolts, and curtain wall materials. Headquartered in Nanjing, Jiangsu, the company has a modern production base and R&D center, committed to providing comprehensive reinforcement material solutions. Over the years, Mankate Science&Technology has become one of the leading companies in the domestic reinforcement material industry.
The company places a high emphasis on technological R&D and innovation, with a research team composed of industry experts and technical backbones. Mankate insists on combining independent innovation with the introduction and absorption of advanced technologies, continuously adopting advanced production technologies and equipment from both domestic and international sources to enhance product technical content and added value. Additionally, the company has established close collaborations with several universities and research institutions to jointly conduct research projects and technical breakthroughs, promoting technological progress and industrial upgrades in the industry.
In terms of technical R&D, Mankate focuses on enhancing product performance and meeting environmental and energy-saving requirements. The carbon fiber fabric, carbon fiber sheets, and other reinforcement materials developed by the company feature excellent properties such as high strength, high modulus, corrosion resistance, and fatigue resistance, while also being easy to construct and yielding significant results. Moreover, the company has developed a series of environmentally friendly reinforcement materials, including water-based epoxy structural adhesives and anchor bolt adhesives certified for 100-year lifespan. The post-expansion mechanical anchor bolts have received ETA certification from authoritative foreign institutions, ensuring that Mankate products meet various engineering needs and customer requirements for environmental protection and energy savings.
With its exceptional product quality, comprehensive service system, and strong brand image, Mankate Science&Technology has earned the trust and praise of a wide range of customers. Its products have been widely applied in many significant engineering projects both domestically and internationally. The company’s anchor bolt series products, known for their reliable quality and stable performance, have gained increasing favor among railway construction departments. Additionally, Mankate actively participates in international market competition, with products exported to Europe, Africa, Southeast Asia, and other regions.

Dongnan Elevator Co., Ltd. is an operator of vertical transportation system solutions, headquartered in the Suzhou Wujiang area of the Yangtze River Delta Integrated Demonstration Zone. With 25 years of innovative development, Dongnan Elevator has become a partner in China’s aerospace industry, a national-level specialized and innovative enterprise, one of the top ten elevator manufacturers in China, a preferred brand among the top 500 real estate companies, and a selected supplier for central state-owned real estate developers. The Dongnan Elevator Industrial Park serves as a base for aerospace science education, national defense education practices, and a model for industrial tourism in Jiangsu. Upholding the spirit of aerospace, supporting national defense construction, the company is committed to quality craftsmanship and provides vertical transportation system solutions for major construction projects, creating a space for users to realize their dreams.
As a small and medium-sized enterprise with advantages in specialization, refinement, uniqueness, and novelty, Dongnan Elevator has long focused on the elevator niche market, particularly excelling in the special elevator segment, showcasing strong competitiveness and good growth potential. Dongnan Elevator has been responsible for drafting several national standards, including GB 31094-2014 “Safety Specifications for the Manufacturing and Installation of Explosion-Proof Elevators”, JT/T 881.1-2013 “Elevators for Inland Rivers Part 1: Passenger and Freight Elevators”, JT/T 881.2-2013 “Elevators for Inland Rivers Part 2: Service Elevators”, JT/T 881.3-2013 “Elevators for Inland Rivers Part 2: Testing Methods and Inspection Rules”, GB 24805-2009 “Vertical Lifting Platforms for Persons with Limited Mobility”, and GB/T 35857-2018 “Safety Specifications for the Manufacturing and Installation of Inclined Elevators”. The company has also participated in the formulation of 40 national regulations and has obtained over 300 patents. The company possesses a CNAS-accredited laboratory, providing strong support for the development of new products and reliability testing. Additionally, Dongnan Elevator’s intelligent factory covers an area of 22,000 square meters, equipped with multiple intelligent production devices and a digital management platform, enabling centralized production scheduling, resource allocation, and comprehensive control of intelligent production management capabilities. In terms of service, the company has established a remote service command center, utilizing an IoT CRM system and information technology to achieve 24-hour real-time monitoring of elevators and expert remote support management functions.

Tianjin Zhonghe Steel Trading Co., Ltd. has been committed to providing high-quality steel products to the global market since its establishment. The company specializes in the sales, processing, and integrated distribution of steel products.
The company’s main sells various types of high-quality steel, such as profile steel, plates, pipes, and construction materials, with a large indoor storage facility of over 6,000 square meters, maintaining a stock of nearly 10,000 tons throughout the year. With superior supply channels, ample stock, competitive pricing, and excellent service, the company has built a strong reputation among its clients. After years of development, it has become one of the larger steel spot companies in the Tianjin region.
The company adheres to the service philosophy of “creating value for customers and partners”. With strong capabilities, high-quality supplies, and thoughtful service, it has gained the support and recognition of its customers. In the context of China’s “the Belt and Road” strategy and the economic development of the Bohai Bay region, the company is actively expanding overseas markets while serving the domestic market, positioning itself globally. By focusing on “resources, capital, and brand”, along with a reasonable management structure, strong operational foundations, precise execution, and continuous innovation, the company creates platforms for employees to realize their value. It strives to expand its business space, solve problems, and create value for its clients more effectively.

The series of dual anti-loosening vibration-absorbing self-locking nuts produced by our company features several technical advantages, including self-locking performance of the upper and lower bodies, automatic tightening capability, bidirectional vibration absorption, dual anti-loosening properties, and repeatable use. These products are particularly suitable for threaded connections in harsh working conditions, such as heavy loads, high speeds, and large alternating vibration frequencies. They effectively address the issue of loosening connections across various industries, ensuring that once locked, they never loosen, regardless of the intensity of vibration. This results in maintenance-free or low-maintenance solutions, providing users with safe and reliable assurance while saving on maintenance costs. The overall anti-loosening performance of our products has reached an internationally leading level and has been recognized as a national high-tech product.
Our anti-loosening nuts have been applied in fields such as the State Grid’s ultra-high voltage transmission and distribution lines, electrified railways (high-speed rail), urban rail transit, military products, ships, vehicles, and wind power.

Baoshunchang Super Alloy (Jiangxi) Co., Ltd. was established in 2012 and serves as a key production and R&D base for essential materials in China’s military industry, nuclear power, and high-end equipment manufacturing. It is one of the first military-civilian integrated military enterprises in Jiangxi Province.
The company has a complete production line, including vacuum melting, electroslag remelting, forging, heat treatment, and machining. It specializes in producing special alloy materials that are widely used in fields such as nuclear power engineering, aerospace, petrochemicals, power plant desulfurization, shipbuilding, and mechanical communication electronics. The products are suitable for high-temperature, high-pressure, and corrosive environments with special requirements, providing scientific solutions and excellent product services from a materials perspective.