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Dongrui Biomaterials (Dalian) Co., Ltd. was established in January 2024, with its registered address at No. 182-2-1, Taihai Road, Shihé Subdistrict, Puwan New Area, Dalian City, Liaoning Province. It is a science and technology-based small and medium-sized enterprise specializing in the research, development, production, and application of biomedical polymer materials. The company’s core business encompasses the R&D, production, and sales of biomedical materials, biodegradable polymer materials, and tissue engineering scaffold materials, and it holds qualifications for the production and sale of Class I medical devices. Leveraging independently developed technologies, the company focuses on fundamental R&D and small-batch pilot production of biodegradable polymer materials, providing customized material samples and technical collaboration services to downstream medical device enterprises and research institutions. Its business registration status is “in operation,” and it has continuously completed the annual report disclosures for both 2023 and 2024. Its operational practice centers on three core competencies: material performance optimization, process adaptation, and application verification. Its collaboration scope concentrates on joint development of biomaterials, supply of customized samples, technical consulting, and early-stage R&D support. Its service coverage is primarily domestic, with a key focus on medical device R&D entities and universities/research institutes possessing needs for industrialization and commercialization.

Dezhou Yatai Group Co., Ltd., established in 1997 and headquartered in Dezhou City, Shandong Province, is a national high-tech enterprise, a national “Little Giant” enterprise specializing in niche fields with distinctive expertise and innovation, and a Shandong Provincial manufacturing champion enterprise. The company focuses on three core domains: HVAC energy efficiency, fire protection and safety, and green building mechanical and electrical systems. Its primary businesses include HVAC equipment, smoke exhaust equipment for fire protection, ventilation duct systems, integrated intelligent building mechanical and electrical systems, and supporting equipment for new energy applications. Core products comprise fire dampers, smoke exhaust fans, composite ducts made of phenolic foam/glass-magnesium/zinc-coated steel plates, intelligent ventilation control systems, and equipment supporting ultra-low-energy-consumption buildings. These products are widely deployed across commercial complexes, transportation hubs, hospitals, schools, data centers, and industrial plants. Technologically, the company emphasizes material compositing, structural lightweighting, intelligent control, and system integration. It holds over 30 invention patents and more than 200 utility model patents, and has led or participated in developing over ten national and industry standards, including the “Technical Standard for Building Smoke Control and Exhaust Systems” (GB51251-2017) and “Thermal Insulation Products Made of Phenolic Foam Plastics” (GB/T 20974-2021). The company possesses certifications including the Special Equipment Production License (Pressure Pipeline Components), mandatory certification for fire protection products (CCC), China Energy-Saving Product Certification, and ISO 9001/14001/45001 management system certifications, and maintains Grade I professional contracting qualification for building mechanical and electrical installation engineering. Representative projects include supply of ventilation and fire protection systems for Beijing Daxing International Airport, integrated HVAC systems for Xiong’an Citizen Service Center, application of composite ducts at Kerry Center Qianhai in Shenzhen, and clean air-conditioning systems for the Affiliated Hospital of Shandong First Medical University. Its service network covers all 31 provinces (autonomous regions and municipalities directly under the Central Government) nationwide, with regional manufacturing and service centers located in North China, East China, and South China. Overseas operations extend to select countries in Southeast Asia, the Middle East, and Africa; its products have obtained international certifications including CE and UL. We sincerely invite collaboration on projects, joint R&D, and regional synergy in fields such as green buildings, smart mechanical and electrical systems, new energy supporting equipment, and system integration.

Dezhou Shihua Chemical Co., Ltd. was established in 2007 and is located at No. 6 Shihua South Road, Tianqu Industrial Park, Decheng District, Dezhou City, Shandong Province. It is a key enterprise with regional influence in the chlor-alkali chemical industry and is controlled by Shandong Shihua Group Co., Ltd. The company’s core business covers research, development, production, and sales of basic chemical products including caustic soda, polyvinyl chloride (PVC), liquid chlorine, hydrochloric acid, and sodium hypochlorite. Its products are widely applied across industries such as construction materials, textiles, papermaking, pharmaceuticals, and water treatment. The company possesses an annual production capacity of 300,000 tons of ion-exchange membrane caustic soda and 250,000 tons of PVC resin, supported by its own thermal power plant and chlorine balance system, thereby establishing a circular economy industrial chain centered on chlor-alkali chemicals and integrating upstream and downstream collaboration. Technologically, the company employs domestically manufactured ion-exchange membrane electrolytic cells and low-mercury/mercury-free PVC polymerization processes. It holds utility model patents such as “Internal Anti-adhesion Coating Structure for Vinyl Chloride Polymerization Reactor Walls” (Patent No.: ZL202121357892.4) and has participated in revising national standards including “Sodium Hydroxide for Industrial Use” (GB/T 209-2018). The company has obtained certifications for ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health and Safety Management System. It holds a Dangerous Chemicals Production Safety Permit (Permit No.: Lu WH An Xu Zheng Zi [2023] 040087, valid until July 2026) and has been recognized as a Level-II Standardized Enterprise for Production Safety (Permit No.: Lu AQB-II-CL-2022-0089). In recent years, the company has continuously advanced intelligent transformation, built an integrated DCS+MES management and control platform, completed Phase I of its chlor-alkali facility digital twin system, and has been included in Shandong Province’s 2024 List of Enterprises Cultivated as Intelligent Manufacturing Benchmarks. Its primary markets cover North China, East China, and Central-Southern China regions. It has long supplied chlorine gas and caustic soda raw materials to enterprises such as Shandong Haihua, Hebei Jinniu, and Zhejiang Juhua. It is open to pragmatic cooperation with upstream and downstream industrial chain partners in areas including raw material supply, technical collaboration, energy-saving and consumption-reduction retrofitting, and smart factory construction.

Dezhou Shenghang Trading Co., Ltd. was established in January 2024, with its registered address at No. 619 East Dongfanghong Road, Tianqu Subdistrict, Decheng District, Dezhou City, Shandong Province (within the courtyard of the Dezhou Canal Economic Development Zone Management Committee). It is a lawfully established and compliant limited liability company operating normally in good standing. The company focuses on the commercial distribution sector, with core business activities including domestic wholesale sales of metal materials, construction materials, chemical products (excluding hazardous chemicals), mechanical equipment, hardware, electric and electronic appliances, rubber products, and plastic products. It also holds qualifications for both import and export of goods and technologies, enabling it to conduct general cross-border trade activities. The company features complete basic industrial and commercial registration information and a sound operational record; it has filed its 2025 annual report and has no record of serious violations, credit defaults, abnormal operations, or administrative penalties. Regarding organizational structure, Li Na serves as the legal representative and executive director, while Li Xin serves as the supervisor; the team is streamlined and efficient, concentrating specifically on executing commercial services. This company is suitable as a regional small- to medium-sized commercial partner for practical cooperation, including supply-chain support for metal and construction materials, distribution of general industrial products, and agency services for general cargo import/export, serving both conventional domestic markets and overseas trade scenarios compliant with national access requirements.

Dandong Rikun Energy Co., Ltd. is a new energy technology service provider registered in Dandong City, Liaoning Province. Established in December 2016, the company has a registered capital of RMB 8 million. Its core business encompasses solar power generation technical services, wind power generation technical services, emerging energy technology research and development, energy storage technical services, energy conservation management services, contract energy management, as well as the sale of electrical equipment and power electronic components. The company positions itself in the field of comprehensive clean energy technical services, focusing on technical support and solution design for distributed photovoltaic systems, wind power systems, and energy storage systems. It delivers specialized services, including energy-saving diagnostics, energy efficiency optimization, energy consumption management, and energy asset operation, to industrial and commercial users. Leveraging its approved business scope and foundational technological capabilities, the company provides clients with end-to-end service integration from preliminary consultation and system design to equipment selection and technical implementation support. Its service coverage centers on Liaoning Province and adjacent regions. Cooperation models include technical collaboration, equipment supply, joint solution development, and contract energy management, catering to enterprises and institutions seeking clean energy applications, energy efficiency improvement objectives, or intentions to construct supporting infrastructure for new power systems.

Dandong Longyu Construction Engineering Co., Ltd. was established in December 2009, with its registered address located in Yuanbao District, Dandong City, Liaoning Province. It is an ongoing regional medium- and small-sized private construction enterprise, with a registered capital of RMB 10 million and Chi Xuechun as its legal representative. The company focuses on residential building construction and municipal engineering, and its core businesses include: housing construction projects, municipal public utility projects, highway projects, water conservancy and hydropower projects, architectural decoration and renovation projects, steel structure projects, foundation and substructure projects, and fire protection facility installation projects. Additionally, it provides construction labor subcontracting services, as well as sales of construction materials and decorative materials. Holding Grade III General Contracting Qualifications for Building Construction and Municipal Public Utility Construction, the company is qualified to undertake various housing construction projects with individual contract values not exceeding RMB 30 million, and municipal public utility projects with individual contract values not exceeding RMB 60 million. It holds a valid Work Safety Production License (License No.: Liao JZ An Xu Zheng Zi [2019] 060302), effective until June 2026. The number of employees covered by social insurance remains stable between 15 and 22. Its 2024 tax credit rating is Grade B. The company’s business operations primarily cover Dandong and surrounding counties, undertaking public construction projects such as medium and small sized public buildings, urban infrastructure supporting facilities, and renovation of existing buildings, with practical emphasis placed on general contracting and specialized subcontracting implementation. It engages in pragmatic cooperation, including project construction, labor subcontracting, material supply, and engineering support services, with local government platforms, development entities, design institutes, and upstream and downstream suppliers.

Volkswagen Automatic Transmission (Dalian) Co., Ltd. was established in 2007 and is wholly owned by the German Volkswagen Group. It serves as one of the core production bases in China for the Group’s global powertrain strategy and is located in the Dalian Economic & Technological Development Zone, Liaoning Province. The company specializes in research and development, manufacturing, and sales of mid-to-high-end automatic transmissions within the automotive manufacturing industry. Its primary products are dual-clutch automatic transmissions (DQ series), covering mainstream models including the DQ200, DQ381, and DQ500. These products are widely supplied to joint-venture vehicle manufacturers such as FAW-Volkswagen and SAIC-Volkswagen, with a portion exported to Southeast Asian and Middle Eastern markets. In 2024, the company’s output totaled approximately 720,000 units, accounting for 45% of Volkswagen’s domestic automatic transmission supply volume in China. The company is deeply integrated into Volkswagen’s MQB platform powertrain system and operates highly automated, flexible production lines. Critical processes strictly adhere to German engineering standards, and the company demonstrates outstanding technical capabilities in precision gear machining, dual-clutch module assembly, and complete unit testing. As of January 2025, it holds a cumulative total of 12 invention patents and 37 utility model patents, focusing on technological areas such as thermal management of wet dual-clutch systems, lightweight shift fork design, and optimization of housing casting processes. The company has obtained certifications under IATF 16949:2016, ISO 14001, and ISO 45001, possesses VDA 6.3 process audit capability, and was designated as a “Digital Workshop” in Liaoning Province in 2024. Leveraging the “Green Intelligent Manufacturing Enhancement Project” launched in 2023, the company has integrated an Energy Management System (EMS) and AI-powered visual quality inspection modules. Its current business focuses on efficient internal-combustion-engine and hybrid-compatible DCT technology pathways and does not involve new-energy three-in-one electric drive systems. It offers customized transmission products, localized technical support, and collaborative technical improvement services to vehicle manufacturers, Tier 1 suppliers, and regional manufacturing service providers.

Dalian Free Trade Zone Senpu United Technology Co., Ltd. was established in May 2017, with its registered address at No. 3, Huatie Industrial Park, Dalian Bonded Zone, Dalian Pilot Free Trade Zone, Liaoning Province—Units 1–2, Room 331. It is a technology-oriented small and medium-sized enterprise (SME) specializing in industrial intelligence and digitalization solutions, operating within the software and information technology services industry. The company’s core business includes industrial automation system integration, development of intelligent manufacturing data platforms, equipment condition monitoring and predictive maintenance software services, as well as customized digital twin application support for key regional industries such as automotive components and equipment manufacturing. Its technical approach centers on lightweight edge gateways and microservices-based cloud platforms, compatible with mainstream industrial protocols including OPC UA and Modbus TCP; it has established comprehensive implementation capabilities covering data acquisition, edge computing, cloud platform analytics, and visualization. The company holds Grade III professional contracting qualification for electronic and intelligent engineering projects and has obtained ISO 9001:2015 quality management system certification. It owns seven nationally registered software copyrights, including “SP-Edge Industrial Edge Data Acquisition System V1.0” and “Senpu Equipment Health Assessment Platform V2.0” core proprietary software products. Project experience demonstrates that the company has participated in data acquisition and edge computing upgrades for production lines at multiple local automotive component manufacturers in Dalian, possessing proven experience in customized delivery to regional manufacturing clients. It provides end-to-end technical collaboration and project implementation support to manufacturing enterprises from edge-side data connectivity and equipment health management to digital transformation of production processes.

Dalian Ziming Coatings Co., Ltd. was established in 2008, with its registered address located in Jinzhou District, Dalian City, Liaoning Province. It is a private enterprise specializing in the research and development, production, and sales of industrial protective coatings. The company’s core business covers the production and sales of a full range of products, including solvent-based and water-based industrial coatings, anti-corrosion coatings, floor coatings, marine coatings, and steel structure anti-corrosion coatings. Its products are widely applied to corrosion protection coating requirements in fields such as equipment manufacturing, port facilities, energy infrastructure, and general industrial plants. The enterprise possesses stable independent R&D and production capabilities, strictly adheres to national standards such as GB/T 38597-2020 “Technical Requirements for Low Volatile Organic Compound Content Coating Products,” and has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q31234R1M, valid until October 2025). Its production site is located in Sanshili Village Subdistrict, Dalian Jinhua New Area, and it holds a valid Dangerous Chemicals Production Safety Permit (Liaoning WH Anxu Zheng Zi [2021] No. 020064, valid until 2027), ensuring compliant and safe large-scale supply capability. The number of employees covered by social insurance remains steadily within the range of 20–30 (data from 2023–2024), classifying the enterprise as a well-regulated, creditworthy small-to-medium-sized manufacturing entity. Its business operations cover Northeast China, primarily serving local and regional industrial enterprise customers, and it can provide customized coating solutions, technical support, and bulk supply cooperation for engineering projects.

Dalian Sumitomo Jingang Chemical Co., Ltd. was established in December 2003, with its registered address located at the Songmu Island Chemical Industry Park, Jinpu New Area, Dalian City, Liaoning Province. It is a Sino-foreign joint venture jointly invested by Sumitomo Chemical Co., Ltd. (Japan) and Dalian Jinguang Holding Co., Ltd., with Sumitomo Chemical serving as the technology and management lead. The company focuses on the fine chemical industry, and its core business encompasses research and development, production, and sales of technical-grade pesticides and their intermediates. Its key products include critical intermediates for synthetic pyrethroid insecticides such as lambda-cyhalothrin and deltamethrin, and it also provides customized synthesis services. Its products are primarily supplied to leading agrochemical enterprises both domestically and internationally, with some exported to Southeast Asia, South America, and Africa. The company holds provincial-level recognition as an Enterprise Technology Center and possesses proprietary core technologies, including continuous microreactor synthesis and highly selective catalytic hydrogenation. It has been granted seven authorized invention patents (including two PCT international patents) and twelve utility model patents; these technologies are applied in its intelligent production line for pyrethroid intermediates with an annual capacity of 3,000 tons. The company holds the “Pesticide Production License” (License No.: Pesticide Prod. Permit (Liaoning) 0220), possesses full qualification for technical-grade pesticide production, and has achieved certification under the three major management systems—ISO 9001, ISO 14001, and ISO 45001. In 2023, it was selected by the Ministry of Industry and Information Technology (MIIT) as a “Green Factory,” and its Songmu Island production base is designated as a demonstration project for green chemical industry under Liaoning Province’s “14th Five-Year Plan.” As a council member of the China Agrochemical Industry Association, the company participated in the revision of industry standards such as “GB/T 31775-2015 Classification and Coding of Pesticide Intermediates.” It offers collaborative services to domestic and international agrochemical enterprises, including customized development of intermediates, process optimization, joint R&D, and large-scale production.