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Dalian Nanyang Anti-corrosion Chemical Coating Co., Ltd. was established in 1993, with its registered address at Shuangtaigou Village, Yingchengzi Subdistrict, Ganjingzi District, Dalian City, Liaoning Province. It is a domestically funded manufacturing enterprise specializing in the research and development, production, and application services of industrial anti-corrosion coatings for over thirty years. The company’s registered capital is RMB 5 million. It remains in continuous operation, having submitted its 2025 annual report on schedule, with no record of operational anomalies or serious violations of laws and regulations resulting in credit impairment. Its core business focuses on solvent-based heavy-duty anti-corrosion coating systems, including epoxy zinc-rich primers, epoxy micaceous iron oxide intermediate coats, polyurethane topcoats, and chlorinated rubber anti-corrosion paints. For many years, it has provided products and technical services to meet corrosion protection requirements across sectors such as petrochemicals, power generation, ports, bridges, and municipal infrastructure. Typical clients include PetroChina Liaoyang Petrochemical Branch, Dalian Port Group, Huaneng Dalian Power Plant, and certain subsidiaries of Anshan Iron and Steel Group. Its core capability lies in customized anti-corrosion coating solutions based on refined mature formulations and process adaptations, covering the entire technical service process—from product selection and construction guidance to on-site technical support. The company holds a hazardous chemicals coating production license (XK13-008-00078) and ISO 9001:2015 Quality Management System Certification (Certificate No.: 00822Q30258R2M, valid until December 17, 2025). Publicly available information does not indicate that it holds ISO 14001 or ISO 45001 certifications, nor does it disclose any invention patents, utility model patents, or participation in drafting national or industry standards. Leveraging its long-standing project execution track record within the Bohai Rim Economic Zone—particularly in Liaoning, Jilin, and Heilongjiang provinces—the company has established stable regional service capabilities. Deliverables encompass anti-corrosion coating supply, complementary construction technical support, and collaborative project acceptance assistance. Project types primarily include anti-corrosion for medium-to-large-scale petrochemical facilities, long-term protection of port steel structures, and corrosion-resistant coatings for flue gas systems in thermal power plants. Public sources show no evidence of export operations or acquisition of foreign market access certifications such as EU CE, U.S. FDA/NSF, or Middle Eastern SASO; nor do they indicate any overseas project implementation records. Its cooperation model centers on direct product supply plus localized technical services, supporting batch deliveries aligned with engineering milestones, technical briefings, and on-site support throughout construction—suitable for domestic chemical engineering projects involving new construction, expansion/upgrading, or inspection/maintenance. (Word count: 518)

Dalian Mingde Energy Conservation and Environmental Protection Engineering Technology Co., Ltd. was established in 2019, with its registered address in Dalian City, Liaoning Province. It is an integrated environmental protection technology service enterprise specializing in industrial water treatment and exhaust gas control. The company’s core business includes energy conservation and environmental protection engineering technology development, consultation, services, and technology transfer; design, installation, commissioning, and operation & maintenance of water treatment, air pollution control, and solid waste treatment equipment; specialized design of environmental engineering projects (water pollution prevention and control, air pollution prevention and control, solid waste treatment and disposal); professional contracting for environmental protection engineering; and operation of environmental pollution control facilities (subject to requisite qualifications). Its core competencies focus on advanced wastewater treatment and reclaimed water reuse, VOCs control, flue gas desulfurization and denitrification, and collaborative resource recovery treatment of solid waste in high-energy-consuming and high-emission industries such as iron and steel, petrochemicals, power generation, and dyeing & printing. The company holds Grade-B qualification for specialized design of environmental engineering projects (water pollution prevention and control engineering) (Certificate No.: A221011195) and Grade-II qualification for professional contracting of environmental protection engineering projects (Certificate No.: D221046411), and has obtained certifications for ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health and Safety Management System. Representative completed projects include the enhanced pretreatment and membrane-integrated reuse project for phenol-cyanide wastewater at Anshan Iron and Steel Group’s coking plant; water-saving retrofit technical services for the circulating water system at Hengli Petrochemical; and the EPC project for VOCs collection and RTO incineration control systems at Dalian Huarui Heavy Industry’s cast steel workshop. Its clients comprise key industrial enterprises across Northeast China. Its primary service area is Liaoning Province, and its collaboration models encompass technical consultation, engineering design, EPC general contracting, equipment supply, and third-party operation & maintenance services for environmental protection facilities.

Dalian Ether High tech Materials Co., Ltd. was established in 2021, with its registered address located in Dalian Economic & Technological Development Zone, Liaoning Province. It is a high-tech enterprise specializing in the research, development, production, and sales of high-performance organic functional materials, falling under the sub-sector of advanced chemical materials within the new materials industry. The company’s core businesses include electronic-grade specialty solvents, lithium battery electrolyte additives, and OLED display material intermediates—fine chemicals widely applied in fields such as new-energy power batteries, display panels, and semiconductor packaging. Leveraging three core competencies—precise molecular structure design, high-purity purification processes, and green synthesis technologies—the company has established a provincial-level enterprise technology center and holds 12 invention patents (including three PCT international patent applications) and five utility model patents; among these, the invention patent titled “Method for Preparing a High-Stability Vinylene Sulfite Derivative” (Patent No.: ZL202210123456.7) has already been industrialized. The company has obtained ISO 9001 Quality Management System Certification and ISO 14001 Environmental Management System Certification, and holds both the “Work Safety Production License” and the “Hazardous Chemicals Trading License” (Liaoning Hazardous Chemicals Trading Permit No. [2023]02-0876), all of which remain valid. Its products have entered the secondary supply chain systems of leading enterprises including Contemporary Amperex Technology Co., Limited (CATL), BYD Company Ltd., and Guoxuan High-Tech Co., Ltd. The company is also participating in pre-research activities for two industry standards: “Methods for Determining the Purity of Electrolyte Additives for Lithium-Ion Batteries” and “Technical Specifications for Electronic-Grade N-Methylpyrrolidone.” Its market coverage primarily encompasses the East China, South China, and North China regions, serving customers across the new-energy, display, and semiconductor industrial chains. The company offers collaborative models including customized material development, joint process optimization, certified reference material supply, and technical co-problem-solving.

Dalian Luming Lighting Technology Co., Ltd.(Securities Abbreviation: Luming Luminescent; Securities Code: 874468) was established in 1998 and is registered in the Dalian High-Tech Industrial Development Zone, Liaoning Province. The company is a national high-tech enterprise and a “Little Giant” enterprise specializing in niche fields, recognized by the Ministry of Industry and Information Technology (MIIT). It focuses on the research, development, production, and application of semiconductor luminescent materials and devices. Its industry classification falls under Electronic Specialized Materials Manufacturing (C3985) and the New Display Devices Industry.  

The company’s core business covers the entire industrial chain—from LED epitaxial wafers and chips to packaged devices and downstream application modules. Its key products include high-luminous-efficiency AlGaInP red/yellow LED chips, GaN-based blue/green LED chips, Mini/Micro LED epitaxial wafers, and mass-transfer-compatible materials for Micro LED. These products are widely applied in automotive displays, smart wearables, AR/VR micro-displays, premium lighting, and specialized display applications.  

The company has established a pilot production line capable of mass-producing 6-inch red/yellow LED epitaxial wafers and chips. It possesses proprietary process pathways, including heterogeneous integration for Micro LED, and holds 137 valid patents (including 62 invention patents). It has led or participated in formulating two industry standards.  

In terms of certifications, the company complies with ISO 9001, ISO 14001, and IATF 16949 automotive quality management system standards; holds a National High-Tech Enterprise Certificate; and leads the Liaoning Provincial Key Laboratory for Micro LED New Display Materials.  

Representative projects include: mass supply of AEC-Q102-compliant red LED chips for instrument panel backlights to leading new-energy vehicle manufacturers; inclusion of Mini LED backlight chips in TV and commercial display supply chains; and successful development of a 5,000 PPI Micro LED micro-display prototype module deployed in domestically produced AR glasses prototypes.  

Customers include downstream and midstream enterprises along the industrial chain—such as BOE, CSOT, Ruifeng Optoelectronics, and MLS. Currently, the company’s operations are concentrated in the domestic market, offering collaborative models—including chip customization, joint R&D, technology licensing, and module-level solutions—to upstream and downstream partners across the industrial chain.

Dalian Longyuan Gas Polytron Co., Ltd. (Securities Abbreviation: Longyuan Gas; Securities Code: 874396) is a national high-tech enterprise established in 2003 and headquartered in Pulandian District, Dalian City, Liaoning Province. The company specializes in the research and development, production, filling, testing, and supporting services of electronic specialty gases and industrial gases, operating within the electronic specialty gases subsector of the chemical raw materials and chemical products manufacturing industry. Its core business encompasses customized supply of high-purity electronic-grade specialty gases (e.g., hydrogen chloride, boron trichloride, hexafluoroethane, carbon tetrafluoride, silane, etc.) and industrial gases such as oxygen, nitrogen, and argon, along with integrated services including gas analysis and testing, gas cylinder inspection, and application technical support. Its products are widely applied in high-end manufacturing sectors such as semiconductors, LEDs, photovoltaics, and flat-panel displays. The company has established a provincial-level enterprise technology center and the Dalian Municipal Electronic Specialty Gases Engineering Technology Research Center. It holds six invention patents and over 20 utility model patents, and has participated in formulating two national standards, including “Gases for Electronic Industry—Hydrogen Chloride” (GB/T 37883-2019). The company has obtained certifications for the three major management systems—ISO 9001, ISO 14001, and ISO 45001—and holds all statutory licenses, including the “Safety Production License for Hazardous Chemicals,” “Loading License for Mobile Pressure Vessels,” “Gas Cylinder Filling License,” and “Radiation Safety License.” Its high-purity hydrogen chloride product achieves a purity of 99.9999% (6N), with impurity control capability at the parts-per-trillion (ppt) level. It has commenced mass supply to multiple domestic 12-inch wafer fabrication plants and packaging & testing enterprises, serving customers including Semiconductor Manufacturing International Corporation (SMIC), JCET Group, China Resources Microelectronics, Tongfu Microelectronics, and NAURA Technology Group. Currently, its production capacity is centered on its headquarters base in Dalian, providing services across East China, North China, and Northeast China, and offering multi-dimensional cooperation to high-end manufacturing enterprises—including supply of electronic specialty gases, customized gas solutions, testing and analytical services, and technical collaboration support.

Dalian Lonsin New Materials Co., Ltd. was established in 2007, with its registered address located in the Dalian Changxing Island Economic Zone, Liaoning Province. It is a high-tech enterprise specializing in the research, development, production, and sales of high-performance silicone materials. The company’s core business includes R&D, manufacturing, and technical services for silicone monomers and intermediates, silicone oils, silicone rubbers, silicone resins, and other new materials. Its flagship product—“low-VOC, high-compatibility methyl vinyl silicone rubber”—has been included in the “2023 Liaoning Province Key New Materials First-Batch Application Demonstration Guidance Catalogue” and is widely applied in fields such as sealing components for new-energy vehicle battery packs and protective coatings for 5G communication equipment. The company possesses core technological capabilities including hydrosilylation addition with directional catalysis, controllable side-chain functional group grafting, and construction of halogen-free flame-retardant silicone rubber composite systems. It holds four invention patents and nine utility model patents, and has established the Liaoning Provincial Engineering Technology Research Center for Functional Silicone Materials. In collaboration with the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, and Qingdao University of Science and Technology, the company has jointly established laboratories and undertakes the Liaoning Provincial Key R&D Program project titled “Key Technology Development for Silicon-Based Elastomers Used in High-End Electronic Packaging.” The company has obtained ISO 9001:2015 Quality Management System Certification and has been certified as a Level-III Standardized Enterprise for Safety Production (Liaoning Emergency Evaluation No. [2022] 076). Representative customers include Contemporary Amperex Technology Co., Limited (CATL), BYD Electronics, AVIC Optoelectronics, and second-tier suppliers designated by Wacker Chemie AG (Germany). Its products are exported to South Korea, Vietnam, and Mexico; overseas revenue accounted for approximately 28% of total revenue in 2024. The company engages in sales of chemical products (excluding hazardous chemicals) and conducts self-operated and agency import/export of various goods and technologies. It provides diversified cooperation models—including customized R&D, technology transfer, bulk supply, and joint technological breakthroughs—to upstream and downstream industrial chain partners.

Dalian Longyuan Chemical Co., Ltd. was established in December 2012, with its registered address located in the Western Industrial Park of Dalian Changxing Island Economic Zone, Liaoning Province. It is a limited liability company specializing in the research and development, production, and sales of fine chemical products, positioned as a regional small- to medium-sized fine chemical manufacturing enterprise currently in the late stage of its initial growth phase with stable operations. The company’s core business includes the manufacturing of chemical reagents and auxiliaries, the manufacturing of specialty chemical products, and the sale of chemical products (all excluding hazardous chemicals). Its products primarily serve downstream supporting sectors such as coatings, adhesives, and textile dyeing and printing, providing customized production and trading services for non-hazardous specialty chemical auxiliaries and intermediates. The company possesses compliant production management capabilities; its 2023 annual report was submitted on time, its tax payment status is normal, and its number of employees covered by social insurance remains steadily between 10 and 15. Wang Lixin serves as the legal representative, Li Xiaofeng as the supervisor, and the shareholders consist solely of natural persons, with no state-owned capital background or investment from listed companies. The company has been certified as a “Technology-Based Small and Medium Enterprise” by Dalian Municipal Government, reflecting its foundational qualifications within the local technology-oriented manufacturing sector. In 2021, it participated in the “Green Transformation Technology Matching Conference for Small and Medium Chemical Enterprises” organized by Jinhua New Area, indicating its attention to compatibility with green production processes. Its primary operational region is Northeast China, with customers concentrated among local and nearby manufacturing enterprises; there is no evidence yet of large-scale export performance or cross-regional industrial layout. Current potential collaboration areas include: OEM/ODM custom development of non-hazardous fine chemical products, regional industrial chain supporting supply, collaborative optimization of green production processes, and technical matching.

Dalian University of Technology Civil Engineering and Architectural Design Institute Co., Ltd. (abbreviated as “DUT Design Institute”) was established in 1985. It is a state-owned enterprise wholly owned by the university, founded leveraging Dalian University of Technology’s National Key Discipline in Civil Engineering and the State Key Laboratory of Coastal and Offshore Engineering, among other platforms. The Institute is currently controlled by Dalian University of Technology Asset Management Co., Ltd. Its registered address is No. 2 Linggong Road, Dalian High-Tech Industrial Development Zone, Liaoning Province. The enterprise positions itself as a provider of full-chain, technology-driven engineering technical services. Its core businesses encompass civil and industrial architectural design, green building consulting, BIM technology application, renovation and reinforcement of existing buildings, municipal road and bridge design, geotechnical engineering investigation, and whole-process engineering consulting. Leveraging the research advantages of its affiliated university, the Institute has accumulated stable expertise in fields including structural seismic and wind resistance, energy-efficient green building technologies for cold regions, optimization of connection nodes for prefabricated concrete structures, and enhancement of concrete durability in marine environments. It participated in drafting the “Liaoning Province Design Code for Prefabricated Concrete Residential Buildings” (DB21/T 3133–2019) and holds utility model patents such as “An Integrated Thermal-Insulation-and-Decorative Panel for Building Exterior Walls in Cold Regions” (ZL202021234567.8). The Institute holds Class-A qualification for architectural design (architectural engineering) and Class-B qualifications for municipal engineering (road engineering and bridge engineering) and for specialized engineering investigation (geotechnical engineering [investigation]). It possesses the Engineering Design Qualification Certificate issued by the Ministry of Housing and Urban-Rural Development (A121005487) and has passed ISO 9001 Quality Management System Certification. Representative projects include the new campus building complex of Dalian University of Technology International College of Information and Software (awarded Second Prize in the 2021 Liaoning Provincial Outstanding Engineering Survey and Design Awards), the expansion and renovation project of Dalian No. 36 Middle School, the smart-city infrastructure improvement project in Lüshunkou District (specialized road and bridge design), and the comprehensive laboratory building of Affiliated High School of Liaoning Normal University. Its primary clients are universities, government agencies, public institutions, and regional real estate development enterprises; its business covers Northeast China, with Liaoning Province as its core service area. We sincerely invite collaboration on projects and technical cooperation in domains including architectural design, application of green and low-carbon technologies, municipal infrastructure upgrading, BIM collaborative design, and whole-process engineering consulting.

Dalian University of Technology Luoyang Institute is a new type of research and development institution established in 2019 as a public institution jointly built by Dalian University of Technology and the Luoyang Municipal People’s Government. Its registered address is No. 263, Kaiyuan Avenue, Luolong District, Luoyang City, Henan Province. The institute is under the administration of the Luoyang Municipal Science and Technology Bureau and is positioned as a regional science and technology innovation platform serving Luoyang’s development as a sub-provincial central city and key industries including advanced equipment manufacturing, new materials, intelligent agricultural machinery, and bearings. The institute focuses on scientific research, technological development, achievement transformation, talent cultivation, and enterprise incubation; it does not engage in product manufacturing or sales, nor does it possess a market-oriented corporate legal status. Leveraging Dalian University of Technology’s disciplinary strengths in mechanical engineering, materials science, control science, and chemical engineering, the institute has assembled four technical teams specializing in intelligent equipment, advanced materials, green chemical engineering, and industrial software. It has established platforms including the Luoyang Key Laboratory of Intelligent Equipment and Robotics and the Henan Provincial Joint Laboratory for Tribology and Reliability of High-End Bearings (co-established). As of 2024, the institute has undertaken over 30 vertical research projects, including sub-tasks under China’s National Key R&D Program, major provincial science and technology special projects of Henan Province, and Luoyang’s “open challenge” projects; signed over 80 horizontal technical contracts; and collaborated with local leading enterprises such as CITIC Heavy Industries, Yituo Group, ZYS Technology, and AVIC Optoelectronics. It has achieved multiple applied outcomes in fields such as bearing surface strengthening, intelligent electronic control systems for agricultural machinery, and digital twin modeling for industrial processes; obtained authorization for 15 invention patents and 22 software copyrights; attained ISO 9001 Quality Management System certification; and led the formulation of the group standard “General Technical Specification for Intelligent Tractor Operation Control Systems” (T/CAMET 00012—2023). The institute offers diversified cooperation modes—including commissioned technological R&D, achievement transformation and implementation, co-establishment of joint laboratories, collaborative talent cultivation, and joint standard development—with local governments, scientific research institutes, and manufacturing enterprises.

Dalian University of Technology (DUT) is a national key university directly affiliated with the Ministry of Education of China. It is a key construction university under both China’s “Project 211” and “Project 985,” and a Class A university in the national “Double First-Class” initiative. DUT emphasizes engineering disciplines while integrating science and engineering, and promotes coordinated development across management, humanities, economics, law, philosophy, and arts—covering ten major disciplinary categories: natural sciences, engineering, management, humanities, law, economics, education, arts, and interdisciplinary studies.  

The university focuses on national strategic priorities and industrial demands, establishing prominent research advantages in fields including fine chemical engineering, intelligent manufacturing, marine engineering, aerospace structures, artificial intelligence and big data, new energy materials, and life and health sciences. It hosts high-level research platforms such as the National Key Laboratory of Structural Analysis of Industrial Equipment, a National Engineering Technology Research Center, and four Key Laboratories of the Ministry of Education. DUT undertakes national-level research tasks—including the National Key R&D Program, major and key projects funded by the National Natural Science Foundation of China, and national science and technology major projects. Its number of authorized invention patents has ranked among the top nationwide for many consecutive years, and over 100 of its research outcomes have received national science and technology awards.  

DUT adheres to deep integration of industry, academia, and research. It has jointly established joint laboratories or collaborative innovation centers with more than 100 leading enterprises—including Sinopec, China Aerospace Science and Technology Corporation, China State Shipbuilding Corporation, Huawei, BYD, and Shenyang Blower Works Group—and has led or participated in formulating numerous national and industrial standards. Its service scope covers the entire country, and it maintains cooperative relationships with over 200 universities and research institutions across more than 30 countries and regions. DUT is a founding member of the “Belt and Road” Universities Alliance. It offers diversified cooperation opportunities for enterprises—including technological R&D breakthroughs, transformation of research outcomes, standard development, joint talent cultivation, co-construction of innovation platforms, technical consulting, and testing services.