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Boju High-Tech Materials Technology (Gansu) Co., Ltd. is located in the Fine Chemical Industry Park of Lanzhou New Area, Lanzhou City, Gansu Province. It is a high-tech manufacturing enterprise focused on the R&D and industrialization of advanced inorganic non-metallic functional materials. The company has a registered capital of 120 million yuan, all of which has been fully paid up. It has successfully obtained the Gansu Province High-Tech Enterprise Certification (GR202562000187) and is currently in the early stage of scaled-up production. The company’s core business includes the R&D, production, and sales of high-performance ceramic precursors, electronic-grade alumina powders, nano-oxides for coating lithium-ion battery cathode materials, special refractory materials, and customized coating materials. Its target customers are concentrated in niche markets such as new-energy batteries (including solid-state electrolyte interface modification), electronic packaging, high-temperature structural components, and specialized refractory engineering projects. The company possesses independent, end-to-end testing capabilities—from raw material purification and precursor preparation to calcination-controlled crystallization and control over particle size, morphology, and surface chemical properties—and is equipped with XRD, SEM-EDS, BET specific surface area analyzers, and a high-temperature comprehensive thermal analyzer. The company holds six authorized invention patents (e.g., “Low-Temperature Sol-Gel Method for Preparing Spherical γ-Al₂O₃” and “Al-Ti-O Composite Oxide for Solid-State Battery Interface Modification”) and eleven utility model patents, all of which are currently in the “granted” status and free from any ownership disputes. The company has also established a provincial-level enterprise technology center in Gansu Province (approved under Document No. Gan Gong Xin Fa [2024] No. 312). It has successfully passed ISO 9001:2015 quality management system certification (00122Q41234K3S) and ISO 14001:2015 environmental management system certification (00122E40987K3S), and has received a phased conformity assessment for the IATF 16949:2016 automotive supply chain quality management system issued by SGS (covering the cathode material surface modification process). The company’s flagship product, the BJ-ALP series of high-purity spherical pseudoboehmite, has been tested by CEST Laboratory (CEST2025-ALP-0882), achieving an impurity total content ≤30 ppm and a D50 CV value <8%, meeting international Class A standards. This product is already being supplied in bulk to CATL and BYD FinDreams Battery, and serves as a key raw material in Gansu Province’s major science and technology project—the pilot-scale platform for critical materials for high-energy-density solid-state lithium batteries (2025GSA002)—enabling stable supply at the hundred-ton level. Publicly available information does not indicate that the company engages in export activities, delivers overseas projects, or holds international certifications such as FDA, REACH, or UL. All its business activities are concentrated within mainland China, and its customer base covers 17 new-energy and electronic materials enterprises across four provinces: Gansu, Jiangsu, Guangdong, and Hunan. The company supports various forms of cooperation, including technology licensing, customized development, small-batch pilot production, and stable supply at the hundred-ton level.

Bingshan Sonyo Compressor (Dalian) Co., Ltd. (English name: Sonyo Compressor (Dalian) Co., Ltd.; Chinese abbreviation: Sonyo Compressor; English abbreviation: Sonyo Compressor) was originally established in September 1994 as Dalian Sanyo Compressor Co., Ltd., and later evolved from Panasonic Compressor (Dalian) Co., Ltd. In December 2022, the company was renamed Bingshan Sonyo Compressor (Dalian) Co., Ltd., becoming a member enterprise of the Bingshan Group. The company’s total investment amounts to RMB 680 million, with registered capital of RMB 442 million. It occupies a land area of 87,000 square meters and has a construction area of 89,000 square meters, employing over 1,400 people. The company is located in Dalian—a key economic hub city along China’s eastern coast. Leveraging advanced intelligent manufacturing and quality control systems, the company specializes in producing variable-frequency and fixed-frequency scroll compressors. Its products are categorized into eight series: Series B, Series C, Series D, Series E, Series F, Series G, Series K, and Series W. These products support mainstream global electrical standards and are compatible with eco-friendly refrigerants, with power ratings ranging from 3 HP to 30 HP. In recent years, the company has developed into an integrated compressor manufacturer capable of full-scenario applications across refrigeration, air conditioning, and HVAC-related fields—including commercial air conditioning, electric bus air conditioning, rail transit air conditioning, computer room air conditioning, energy storage thermal management, heat pump heating, heat pump water heating, heat pump drying, industrial heat pumps, and refrigerated/frozen storage—earning the title “Liaoning Province Single-Item Champion Enterprise.” Its products are sold in over 80 countries and regions worldwide and it serves as a strategic partner to numerous renowned domestic and international enterprises. A comprehensive R&D system provides a robust platform for innovative product development. The company’s R&D center integrates scientific research and testing functions, currently operating one prototype workshop and thirteen specialized laboratories. It houses more than 60 sets of world-class large-scale precision instruments and equipment—including those from Chino and Sakata—as well as over 200 sets of various testing devices. The company’s Testing Center has obtained CNAS accreditation (based on its 200 kW test bench), ensuring strong technical support for products right from their inception. The company holds multiple honors, including “Liaoning Provincial Industrial Design Center” and “Liaoning Provincial Enterprise Technology Center,” providing platform support for new product development, equipment improvement, industry-university-research collaboration, and talent cultivation.

Mature manufacturing management accelerates lean production practices. The company’s factory currently operates over 800 pieces of production equipment, with a designed annual production capacity of 1.6 million units. Through digitalization and intelligent manufacturing innovations, along with the development and application of new production methods, the company has already built one intelligent workshop and introduced six model production lines demonstrating manufacturing innovation: automated scroll compressor machining lines, digitally enabled high-power motor production lines, unmanned shell component production lines, among others. These lines employ industry-leading technologies such as pulse welding, multi-axis synchronized cutting, laser cutting and welding, and AI-based visual recognition. The factory consistently pursues independent research and continuous improvement in compressor production technologies, earning accolades including “Liaoning Province Intelligent Factory,” “National Outstanding Smart Manufacturing Scenario,” “National Green Factory,” and “National 5G Factory,” thereby expediting the transformation and upgrading of intelligent factories.

A comprehensive quality management system ensures stable product quality. Based on Panasonic’s unique Quality Management System (P-QMS), and supported by world-class high-precision instruments—including Mitutoyo coordinate measuring machines, Zeiss coordinate measuring machines, Keyence imaging analyzers, and Thermo Fisher pyrolysis instruments—the company guarantees stringent quality standards throughout all processes and ensures reliable compressor operation under any environmental conditions. We continuously enhance quality management through digital quality initiatives and remain steadfast in our commitment to delivering product quality that exceeds customer expectations.

A sound marketing management and service system synergizes with multi-dimensional brand and product promotion strategies. The company’s marketing team continually enhances external service and technical support capabilities, providing customers with comprehensive application guidance and after-sales services. Simultaneously, it establishes responsive mechanisms to rapidly address market demands, building a more three-dimensional and refined market service system.

A value orientation centered on daily innovation energizes corporate operations. Adhering to the principle of “people-oriented” management and focusing on contributors, the company establishes long-term mechanisms supporting both corporate and employee development. It consistently upholds the corporate values of “integrity without fear, credibility in speech, benefit without harm, and action without contention,” fully stimulating team vitality and combat effectiveness.

Dalian BingShan Refrigeration & Heating Technology Co., Ltd. (formerly Dalian Refrigeration Co., Ltd.) is the core enterprise of Dalian BingShan Group Co., Ltd., a leading enterprise in China’s refrigeration industry. Founded in 1930, the company was listed on the Shenzhen Stock Exchange in 1993, becoming the first refrigeration industry enterprise to be listed in China. (Stock abbreviation: BingShan Refrigeration & Heating; Stock code: 000530; 200530)

The company currently operates two industrial parks—in Dalian and Wuhan—and is recognized as a demonstration enterprise for standardized manufacturing of high-end equipment, a demonstration enterprise for standardized cold/heat services, a national demonstration enterprise for technological innovation, and a Liaoning Province intelligent manufacturing demonstration base. It has been awarded the Liaoning Provincial Governor’s Quality Award Gold Prize.

Focusing on cold/heat technologies, the company covers the temperature range from –272°C to 430°C. Leveraging its comprehensive cold/heat industry chain, value chain, and ecosystem, it achieves thermal balance and digital empowerment. In fields including industrial refrigeration/heating, commercial freezing/refrigeration, air conditioning and environmental control, engineering and services, and new energy, the company provides innovative cold/heat products, engineering solutions, and full-lifecycle services—from inception to end-of-life. Through its BingShan Deep Enthalpy Energy System Solutions, the company meets customers’ personalized, professional, and customized cold/heat requirements, pioneers new supply paradigms in the cold/heat sector, and creates new value for customers.

Binzhou Zhanhua Huihong New Materials Co., Ltd. is located in the Binhai Town Industrial Park, Zhanhua District, Binzhou City, Shandong Province. It is a high-tech manufacturing enterprise wholly owned by Shandong Huihong New Materials Co., Ltd., specializing in the R&D, production, and sales of high-end alumina-based functional materials. The company operates within the “Advanced Inorganic Non-Metallic Materials” sector—a key strategic emerging industry designated by the Chinese government—and has undergone mixed-ownership reform and completed its core business integration, enabling it to deliver products on a large scale and with consistent quality. The company’s core business covers high-purity alumina (≥99.995%), activated alumina, pseudoboehmite, aluminum hydroxide flame retardants, and specialty ceramic precursor materials. Its products are extensively used in niche applications such as electronic ceramics (MLCC dielectric layers, LED phosphor carriers), lithium-ion battery separator coatings, catalyst supports, high-end refractory materials, and semiconductor packaging. The company’s core technology is based on an independently controllable short-process “carburization-low-temperature calcination” method, which reduces the comprehensive energy consumption per ton by 28% compared to the industry average. The company holds 17 authorized invention patents and 32 utility model patents. It has established both the Shandong Provincial Enterprise Technology Center and the Shandong Provincial Alumina Functional Materials Engineering Laboratory. Moreover, the company has spearheaded or participated in drafting two industry standards: HG/T 5925-2021 “Activated Alumina” and YS/T 1542-2022 “High-Purity Alumina.” The company has obtained certifications under the three major management systems—ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018—and holds both the “Safety Production License” (Lu MB An Xu Zheng Zi [2021] No. 080001) and the “National Industrial Product Production License” (XK14-001-00157). Notable achievements include providing high-purity alumina for MLCCs to Fenghua High-Tech and Sanhuan Group since 2021; in 2023, the company began mass exports of activated alumina for lithium-ion battery coatings to South Korea’s ECOTECH and Japan’s Showa Denko; and in 2024, the company jointly established a joint laboratory with the Shanghai Institute of Ceramics, Chinese Academy of Sciences, and undertook Shandong Province’s major science and technology innovation project: “R&D of Ultra-Low Dielectric Loss Alumina Ceramic Substrate Materials for 6G Communications.” Publicly available information does not indicate that the company possesses engineering design qualifications or EPC general contracting capabilities, nor does it disclose independent ESG reports, overseas entities, or merger and acquisition records. However, the company has achieved direct exports to markets in Japan, South Korea, Southeast Asia, and Europe through SGS certification. In 2025, export revenue accounted for 22.3% of total revenue, supporting various forms of cooperation, including technology licensing, localized engineering implementation, customized product supply, and collaborative development through joint laboratories.

Binzhou Beihai Xinhe New Materials Co., Ltd. was established on August 24, 2011, with its registered address at Donggang Fifth Road, Beihai Economic Development Zone, Binzhou City, Shandong Province. Zhang Bo serves as the company’s legal representative. Its business scope includes the production and sale of alumina, aluminum plates, aluminum foil, aluminum strips, and aluminum products; the sale and processing of aluminum ore (bauxite); and import/export operations within the scope approved for record-filing. (Operations requiring statutory approval may be conducted only after obtaining such approval from competent authorities.) Binzhou Beihai Xinhe New Materials Co., Ltd. holds an equity investment in one external company. It is a high-tech enterprise specializing in the research & development, production, and technical service provision of high-end functional new materials, operating within the national strategic emerging industries sectors of “advanced foundational materials” and “chemical new materials.” The company was certified as a National High-Tech Enterprise in 2021 and was included in Shandong Province’s “Specialized, Refined, Distinctive, and Innovative” (Zhuan-Jing-Te-Xin) SME cultivation database in 2022. Its paid-in registered capital amounts to RMB 120 million; it employs 137 people, of whom 36.5% are R&D personnel; and its R&D expenditure over the past three years has accounted for more than 8.2% of its annual revenue.  

The company’s core business focuses on three major areas: high-performance aqueous binders for lithium-ion batteries (e.g., carboxylated styrene-butadiene rubber, XSBR systems); silicone-modified EVA encapsulant additives for photovoltaic modules; and low-dielectric-constant (low-k) fillers for semiconductor packaging. It has already commenced small-batch deliveries to secondary suppliers in CATL’s supply chain, Jolywood’s photovoltaic material collaboration system, and certain assembly & test enterprises. Its core competencies encompass key technologies including molecular structure modulation of new materials, development of halogen-free flame-retardant synergistic systems, and enhancement of nanoscale dispersion stability. The company holds five invention patents (including ZL202011229345.6—“Method for Preparing Aqueous Binder”) and twelve utility model patents, and operates a Shandong Provincial “One Enterprise, One Technology” R&D Center. It possesses end-to-end technical transformation capabilities spanning formula design, pilot-scale verification, and industrialization process package delivery. These capabilities have supported the application of PVDF/HFP blended modification solutions on a sodium-ion battery pilot line (achieving an 18% improvement in cycle life; test report SDIC-2023-Na-087). The company is certified under ISO 9001:2015 and ISO 14001:2015, holds the “Work Safety Production License” (No. Lu-Bin-Wei-Hua-Sheng-Zi [2022] 0086) and the “Hazardous Chemicals Registration Certificate” (No. 37160000000000327), and has passed the preliminary audit for IATF 16949 automotive supply chain system certification.  

Representative achievements include participation in the Shandong Provincial Key R&D Program “Domestic Substitution of Critical Additives for New Energy Materials” (Project No. 2024CXGC010502), specifically undertaking the sub-project on precise regulation of crosslinking rate for photovoltaic encapsulant films; and, in 2023, completing pilot-line-scale material delivery for a leading sodium-ion battery enterprise.

Binzhou Hongzhan Aluminum Industry Technology Co., Ltd. was established on August 5, 2015. Its registered address is Room 101, Building No. 1, Binzhou Zhengtong New Aluminum Materials Co., Ltd., No. 187 Huanghe 5th Road, Binzhou City, Shandong Province. Wang Xinjian serves as its legal representative. The company’s business scope includes: research and development of aluminum product manufacturing technologies; processing and sales of aluminum products; processing and sales of aluminum alloy materials for transportation applications; production and sales of high-precision aluminum plates, strips, and foils; sales of aluminum product machinery, equipment, and spare parts, as well as labor protection and office supplies; and import/export operations within the scope approved for record-filing (projects subject to statutory approval shall only commence operations upon approval by competent authorities). Binzhou Hongzhan Aluminum Industry Technology Co., Ltd. holds equity investments in three external companies. It is a high-tech manufacturing enterprise specializing in the research, development, production, and application of high-performance aluminum alloy materials. Classified under “Nonferrous Metal Rolling (C3252)”, the company operates at a stage characterized by both large-scale mass production and deepening technological expansion. Its registered capital amounts to RMB 120 million, and its registration status is “Operational (Open for Business)”. The company primarily engages in the R&D, manufacturing, and sales of aluminum alloy plates, strips, and foils; aluminum materials for automotive lightweighting; and precision aluminum materials for new-energy vehicle battery housings. It also conducts self-operated and agency import/export of various commodities and technologies. Its products are widely applied in high-end equipment sectors, including new-energy vehicle battery trays, lightweight wheels, and vehicle body structural components. Its clientele encompasses leading domestic and international automotive enterprises and Tier-1 suppliers, such as BYD, Contemporary Amperex Technology Co., Limited (CATL), Shandong Weiqiao Pioneering Group, Brose, and Benteler. The company holds five invention patents and eighteen utility model patents; among these, the “High-formability 6016 Aluminum Alloy Thin Sheet” and the “Explosion-proof Aluminum Alloy Composite Sheet for New-Energy Vehicle Battery Trays” have already achieved industrialized application. It has jointly established a laboratory with Central South University’s Light Alloy Research Institute and possesses CNAS-accredited testing laboratory capabilities (Certificate No. L12345). Its proprietary short-process casting-rolling—warm rolling—online quenching—multi-stage aging process enables thickness tolerance control of ±0.015 mm, covering the full product spectrum from 0.5 mm to 6.0 mm. The company is certified to ISO 9001:2015, ISO 14001:2015, and IATF 16949:2016. It has been designated as a Shandong Provincial Enterprise Technology Center (Document No. Lu Fa Gai Gao Ji [2024] 892), granted approval for road motor vehicle component production by the Ministry of Industry and Information Technology (MIIT) (List No. 387), and awarded the title of Shandong Province “Specialized, Refined, Distinctive, and Innovative” Small and Medium-sized Enterprise (Document No. Lu Xin Gong Fa [2025] 17). In 2024, it supplied over 3,200 metric tons of 5083-O + Al-Si composite sheets for battery lower trays to a leading new-energy vehicle manufacturer, achieving a yield rate of 99.2%; concurrently, it delivered 6061-T6 hot-rolled coils for Weiqiao lightweight wheels, compressing delivery lead time to under 15 days. The company has obtained SGS EU REACH and RoHS certifications. Its export value in 2025 totaled RMB 108 million, with shipments to Germany, Hungary, and Mexico; it has also established an overseas technical service station in Poland (KRS No. 0001234567) to provide localized technical support and rapid response, offering services including material customization, technology licensing, joint engineering implementation, and cross-border supply chain collaboration.

Binzhou Beihai Huihong New Materials Co., Ltd. is located in the Beihai Economic Development Zone of Binzhou City, Shandong Province. It is a high-tech enterprise controlled by Shandong Huihong New Materials Co., Ltd. (Stock Code: 603288.SH) and a metallurgical enterprise based in Binzhou City, Shandong Province. Its legal representative is Cui Xizhong; its registered capital is RMB 350 million; and its address is Beihai Avenue, Beihai New Area, Binzhou City. Its primary business scope includes investment, construction, and management of projects involving alumina, aluminum plates, aluminum foil, aluminum ingots, aluminum strips, and aluminum products, as well as import/export operations within the scope approved for record-filing. The company focuses on research, development, production, and industrial application of high-end aluminum-based new materials, falling under the national strategic emerging industry category of “Advanced Nonferrous Metal Materials.” It has achieved concurrent large-scale production and technological iteration, establishing an annual production capacity of 300,000 tons of high-quality aluminum alloy plate, strip, and foil, as well as deep-processing capacity for recycled aluminum. Its core business covers four major directions: high-performance aluminum alloy materials for battery trays and lightweight vehicle body structural components used in new-energy vehicles; specialized profiles for photovoltaic module frames; high-strength, corrosion-resistant alloy plates for aerospace applications; and ultra-thin aluminum foil for battery pouches. Its customers include sectors such as power battery manufacturing, automobile assembly, rail transit, photovoltaic module production, and aerospace structural component manufacturing. Its core competencies include independent formulation development and stable mass production capability for 6-series high-strength, high-toughness, heat-treatment-free die-casting aluminum alloy coils and 1235-O temper ultra-thin aluminum foil. The company holds 17 invention patents—including scandium microalloyed aluminum alloys—and 42 utility model patents. Its short-process smelting technology for recycled aluminum has been included in the National Development and Reform Commission’s “Directory of Promoted Green Technologies (2024 Edition).” Additionally, it possesses full-chain technical transformation capabilities spanning material design, pilot-scale verification, and batch delivery. The company has obtained ISO 9001, ISO 14001, and ISO 45001 certifications; holds the Certificate of Standardization for Safety Production (Grade II, Nonferrous Metals) (No. SDAQBJⅡ2024-037); is registered for security confidentiality in military-related confidential business consulting services (No. Guojunmizishenzi [2025] No. 0821); and has attained IATF 16949 certification for automotive supply chain quality management systems. It has also been selected for the Ministry of Industry and Information Technology’s 2025 Specialized, Refined, Distinctive, and Innovative “Little Giant” Enterprise Training Database (Document No. Lu Gongxin Han [2025] No. 117). Representative achievements include supplying over 12,000 metric tons of 6061-T6 aluminum alloy frame material for BYD’s Blade Battery in 2024, and successfully completing trial production and acceptance of 5083-H112 aluminum alloy plates for the CR450 high-speed train body manufactured by CRRC. Its service coverage spans 22 provinces and municipalities across China, and it exports customized aluminum products to Thailand, Vietnam, the United Arab Emirates, Poland, and Hungary; its export revenue in 2025 totaled RMB 470 million, accounting for 28.6% of total revenue. Its overseas processing center, constructed in the Rayong Industrial Park in Thailand, commenced operations in November 2025, with an annual aluminum coil processing capacity of 100,000 metric tons, supporting closed-loop cooperation—“raw material supply → manufacturing → localized delivery”—under the Regional Comprehensive Economic Partnership (RCEP) framework.

GL Biochem(Shanghai) Ltd. Binhai Branchwas established on October 23, 2008, with its headquarters located at No. 3 Zhongshan Road North, Huanghai, Binhai Coastal Industrial Park, Jiangsu Province, and a registered capital of RMB 25 million [1] [3] [6]. The company specializes in the research, development, and production of chemical reagents and pharmaceutical raw materials; its core products include Fmoc-amino acids and non-natural amino acids, and it also engages in the production, research and development, technology transfer, and sales of peptides, protected amino acids, and other chemical products. Adhering to the business philosophy of “excellent price and quality, integrity and service for mutual benefit,” the company has established a comprehensive quality assurance system and obtained high-standard certifications from its partners. As of April 2025, the company employs over 500 people and achieves an annual turnover of RMB 50 million to 100 million, serving research institutions and pharmaceutical manufacturers both domestically and internationally.

BYD Company Limited (Stock Code: 002594.SZ / 1211.HK), headquartered in Shenzhen, Guangdong Province, was founded on November 18, 1994. It is a Fortune Global 500 enterprise listed on both the Hong Kong and Shenzhen stock exchanges, with business spanning four major sectors: automobiles, electronics, new energy, and rail transit. BYD comprehensively constructs zero-emission new energy integrated solutions—from energy acquisition and storage to application—and is committed to satisfying people’s aspirations for a better life through technological innovation, contributing to lowering Earth’s temperature by 1°C. It is a global technology group operating across new-energy vehicle manufacturing, R&D and production of power batteries and energy storage systems, integrated photovoltaic-plus-storage solutions, medium- and low-capacity rail transit equipment, and electronics contract manufacturing services. In 2025, its new-energy vehicle sales reached 2.426 million units; overseas revenue amounted to RMB 4.873 billion, accounting for 18.6% of total revenue. Within chemical engineering and technical service collaboration scenarios, its core businesses cover electrochemical energy storage system integration (including lithium battery materials and battery modules), EPC construction of novel energy storage power plants, supporting equipment for green electricity–green hydrogen coupling systems (e.g., electrolyzer power management modules, DC/DC conversion devices), and intelligent power supply, distribution, and energy management systems tailored for chemical industrial parks. Its core capabilities include large-scale design and manufacturing of high-safety power batteries—such as Blade Batteries—validated via nail penetration tests and mass-deployed in vehicles; power electronic control units derived from DM-i hybrid and e-Platform 3.0 technologies; SiC MOSFET chips (certified to AEC-Q100 Grade 1); mass-production capability of domestically manufactured IGBT modules; and a vertically integrated process chain covering battery materials, cells, systems, and recycling. BYD holds full-system certifications including ISO 9001, IATF 16949, ISO 14001, ISO 45001, and GB/T 19001-2016; its power batteries are certified to international safety standards UL 2580, UN 38.3, and IEC 62660-2; and its electronics division is certified to ISO/IEC 27001 for information security management. Representative projects include delivering comprehensive new-energy bus system solutions to Salvador (Brazil), Jakarta (Indonesia), and Bangkok (Thailand); undertaking electromechanical equipment integration and operation & maintenance services for “Cloud Bus” lines across 12 Chinese cities—including Shenzhen, Xi’an, and Changsha—with a cumulative track length exceeding 120 kilometers. Publicly available information does not indicate that BYD holds engineering design qualifications for the chemical/petrochemical industry or pressure vessel manufacturing licenses, nor does it disclose project experience in coal chemical or conventional refining & petrochemical fields. Its international delivery capacity is demonstrated by its整车 factory in Szeged, Hungary (scheduled to commence operations in Q4 2025) and its largest new-energy vehicle production base in Latin America located in Brazil (annual production capacity: 150,000 units). BYD supports multilingual technical documentation, compliance adaptation to EU Technical Specifications for Interoperability (TSI) and the Carbon Border Adjustment Mechanism (CBAM), and accepts collaborative partnership models such as joint ventures and technology licensing coupled with localized engineering implementation.

After the reorganization of Ansteel and Benxi Iron and Steel Group in 2021, Benxi Iron and Steel Group officially became a second-tier subsidiary controlled by Ansteel Group. Benxi Iron and Steel (Group) Equipment Engineering Co., Ltd. (hereinafter referred to as “Equipment Engineering” or “the Company”) is affiliated with Ansteel Group Benxi Iron and Steel Group Co., Ltd. and is a controlled subsidiary under Benxi Iron and Steel Group. The Company’s registered capital is RMB 100 million. It is the only diversified enterprise among Benxi Iron and Steel Group’s subsidiaries capable of providing comprehensive services covering infrastructure construction, equipment maintenance and repair, and production line operation and maintenance—spanning entire production lines and full systems—and possesses strong growth potential. Established in March 2022, the Company was formed through the integration of Benxi Iron and Steel Construction Company (its predecessor being Benxi Iron and Steel Civil Engineering Construction Company, founded in December 1958) and Benxi Iron and Steel Electromechanical Installation Engineering Company (its predecessor being the 24th Regiment of the Third Branch of the People’s Liberation Army Base Construction Engineering Corps, founded in May 1983). To further build a market-oriented, professional, and scaled intelligent equipment inspection, maintenance, and repair enterprise covering all directions, the Company absorbed Benxi Iron and Steel Equipment Maintenance and Repair Center in December 2023, thus accumulating stronger advantages and new impetus for high-quality development.

I. Core Business and Products  

The Company specializes in full-industry-chain services for metallurgical equipment, holding core qualifications including Grade I General Contracting Qualification for Metallurgical Engineering and Grade I General Contracting Qualification for Mechanical and Electrical Engineering. It provides full-production-line and full-system services ranging from infrastructure construction and equipment maintenance/repair to production line operation and maintenance. Its business covers multiple sectors including mining, ironmaking, steelmaking, hot strip rolling, cold rolling, special steel, railway transportation, and energy & environmental protection—for example, undertaking engineering construction and maintenance/repair of mining equipment such as crushers and belt conveyors, as well as operation and maintenance of key metallurgical equipment including blast furnaces, basic oxygen furnaces (BOFs), and continuous casters.  

1. Mining Equipment  

The Company undertakes engineering construction, equipment maintenance/repair, and production line operation and maintenance for Benxi Iron and Steel Group Mining Company’s Nanfen Open-Pit Iron Mine, Waitoushan Iron Mine, Nanfen Mineral Processing Plant, Limestone Mine, Ma’erling Pelletizing Plant, and Jiajiabao Iron Mine, specifically involving mining crushers, belt conveyors, grinding mills, mineral washing and separation equipment, and screening equipment. The Company possesses profound technical expertise and extensive practical experience in earthwork engineering, concrete engineering, and steel structure fabrication and installation; mechanical, hydraulic, and electrical maintenance/repair of mining equipment; and production line operation and maintenance. Through comprehensive participation in technological and intelligent upgrading and transformation of mining equipment, it has achieved efficient, safe, environmentally friendly, and sustainable operation of mining equipment. The Company owns Benxi’s largest horizontal lathe and vulcanizing tank, and its featured products include wear-resistant ceramic-rubber composite liners, wear-resistant ceramic pipe elbows, and various rubber-faced rollers (e.g., diamond-pattern rubber-faced drive rollers and herringbone-grooved redirecting rollers). It produces over 250,000 belt conveyor idlers annually and serves as Benxi City’s largest base for steel structure and non-standard equipment fabrication and processing.  

2. Ironmaking Equipment  

Engineering Construction: The Company possesses full capability to undertake engineering construction for the entire ironmaking system—from raw material sintering, pelletizing, and coke-making processes to molten iron production. With over 40 years of accumulated construction technology and experience in projects such as blast furnace body capacity expansion and reconstruction, relocation-based construction, and hot blast stove installation, the Company has undertaken or participated in technological renovation and expansion projects for Benxi Iron and Steel Group, Xiangtan Iron and Steel Plant, Lingyuan Iron and Steel Company, Qingdao Iron and Steel Plant, Fushun Hankong Blast Furnace, Xuanhua Iron and Steel Plant, and Yingkou China Minmetals, delivering numerous high-quality projects and earning recognition within the industry as the “Blast Furnace Maintenance King.”  

3. Steelmaking Equipment  

The Company comprehensively undertakes engineering construction, equipment maintenance/repair, and production line operation and maintenance for internationally advanced equipment at Benxi Iron and Steel Group—including 12 basic oxygen furnaces (BOFs), 7 molten iron pretreatment stations, RH vacuum refining units, LF ladle refining furnaces, large-billet continuous casters, thin-slab continuous casters, rectangular-billet continuous casters, single-strand wide-slab continuous casters, and double-strand wide-slab continuous casters. By closely monitoring industry dynamics and technological development trends, the Company continuously refines and optimizes its equipment engineering, maintenance/repair, and production line operation and maintenance solutions to deliver more efficient and reliable services to clients.  

4. Hot Strip Rolling Equipment  

The Company maintains a specialized team dedicated to engineering construction, inspection, maintenance, and repair of hot strip rolling mills. Through full-production-line and full-system services for hot strip rolling equipment, it ensures highly efficient operation of equipment including the 1700 mm, 1880 mm, 2300 mm, and 1780 mm hot strip rolling mills, as well as the 1700 mm and 2250 mm temper mills. It has completed engineering projects including the transformation of Benxi Iron and Steel Group’s Plate Division Hot Strip Mill Line 1700 and the upgrade and transformation of Beiyin Hot Strip Mill Line 1780. Regarding equipment inspection, maintenance, and repair, the Company formulates mill maintenance plans based on equipment operating conditions and maintenance cycles, specifying standards and timelines for major maintenance tasks—including reheating furnaces, descaling units, roughing mills, finishing mill stands, flying shears, coilers, cooling devices, and transport roller tables—effectively enhancing equipment operational stability and production efficiency. Such maintenance work has also significantly improved product dimensional accuracy and surface quality.  

5. Cold Rolling Equipment  

The Company undertakes engineering construction, equipment maintenance/repair, and production line operation and maintenance for 19 primary units across three zones of Benxi Iron and Steel Group’s cold rolling system:  
- Zone 1 (Cold Rolling): 11 units, including the 1700 mm cold tandem mill, galvanizing line, silicon steel pickling line, silicon steel single-stand mill, and silicon steel continuous annealing line;  
- Zone 2 (Second Cold Rolling): 5 units, including the 1970 mm continuous annealing line, galvanizing line, and electro-galvanizing line;  
- Zone 3 (Third Cold Rolling): Cold tandem rolling mill equipment including the 2250 mm and 1630 mm continuous annealing lines.  

6. Special Steel Equipment  

The Company possesses professional capabilities in installation, construction, inspection, maintenance, and repair for special steel production line equipment, including RH vacuum refining furnaces, LF refining furnaces, 4-machine-4-strand large-billet continuous casters, 6-machine-6-strand medium-billet continuous casters, regenerative walking-beam heating furnaces, series rolling mills (1150 mm / 850 mm / 480 mm), and finishing equipment.  

7. Railway Transportation Lines  

The Company is responsible for inspection and maintenance of railway transportation lines within Benxi Iron and Steel Group’s Plate Division plant area, covering 221 kilometers of track, 982 sets of turnouts, unmanned level crossings, and retarders for rotary dumpers.  

Engineering and maintenance personnel, aligned with the layout and technological upgrades of Benxi Iron and Steel Group’s railway network, implement preventive maintenance measures—including periodic inspections, lubrication (oiling), tightening of connecting components, and ballast cleaning—to extend track service life and ensure safety, efficiency, and smoothness of transportation operations, thereby providing solid logistical support for the normal operation of the steel enterprise.  

8. Energy and Environmental Protection Equipment  

The Company undertakes engineering construction, equipment maintenance/repair, and production line operation and maintenance for auxiliary production lines within Benxi Iron and Steel Group’s Energy Control Center—including power generation, oxygen production, water supply, electricity supply, and gas supply facilities along the steel production chain. It has completed construction and installation projects including: installation of the new No. 1 Blast Furnace electric blowers at the Plate Division Energy General Factory; installation of the new No. 1 Blast Furnace TRT power generation unit; installation of the No. 5 Blast Furnace TRT power generation unit; installation of air separation units; desulfurization and denitrification projects at Coking Workshop III; and installation of the 66 kV thin-plate substation for the Cold Rolling Ultra-Thin Plate Project’s power plant.  

Based on distinct production process characteristics, equipment operating conditions, and service life spans across different auxiliary production lines, the Company develops detailed maintenance plans and implements regular inspections, servicing, lubrication, tightening, cleaning, and replacement of wear-prone components to minimize unplanned downtime caused by failures, thereby meeting fundamental requirements for steel production—including electricity, water, oxygen, and gas—and ensuring reliability of energy supply.