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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 Lvshun Jincheng Refrigeration Equipment Factory was established in 1993 and is located in Lüshunkou District, Dalian City, Liaoning Province. It is a small- to medium-sized manufacturing enterprise specializing in the research and development, manufacturing, and system integration of industrial refrigeration equipment. The company falls under the “Air Conditioning Equipment Manufacturing” subsector (C3464) within the broader General Equipment Manufacturing industry. It has maintained stable operations and continuous technological iteration over the long term. It is a sole proprietorship with an active business status (“in operation”) and has no record of shareholding reform or public disclosure in capital markets.  

The company’s core business focuses on meeting low-temperature process cooling requirements in industries such as chemical engineering, agricultural product cold chain logistics, and light industry. Typical clients include fruit-and-vegetable storage cooperatives, local food processing enterprises, and small- to medium-sized industrial users. It does not engage in large-scale engineering projects for coal chemical or petrochemical primary facilities, nor does it undertake turnkey contracts for high-risk ammonia-based systems.  

Its core capabilities include localized customized design of medium- and low-pressure refrigeration units using refrigerants such as R22 and R134a; integrated manufacturing of piston-type and semi-hermetic screw-type chillers;配套 integration of cooling towers and air-cooled condensing units; installation of cold storage units; energy-efficiency improvement retrofits; and maintenance and technical support services. Its “R22 Refrigerant Unit Energy-Efficiency Improvement Retrofit Project,” completed in 2022, received technical renovation subsidies from Lüshunkou District, demonstrating its ongoing optimization capability for traditional refrigerant systems.  

Publicly available information indicates that the company does not hold ISO 9001/14001 management system certifications, Special Equipment Production Licenses (e.g., Class A2 pressure vessel manufacturing), engineering design qualifications, or certification as a High-Tech Enterprise. No patents, software copyrights, or industry standards led by the company were found in the National Certification and Accreditation Information Public Service Platform or the State Intellectual Property Office database.  

Representative projects include providing low-temperature cold storage unit supply and installation services to two local fruit-and-vegetable storage cooperatives in Lüshun. These projects fall within the scale range of small- to medium-sized commercial/industrial refrigeration stations, with deliverables covering equipment selection, on-site installation, and system commissioning.  

The company has not registered for foreign trade filing in the Ministry of Commerce’s Overseas Investment System or the Customs Import-Export Credit Platform. It maintains no English-language official website, has no record of participation in international exhibitions, and exhibits no export customs declaration data. Public sources reveal no overseas project experience, multilingual service capability, or cross-border standard compliance capacity. Its current cooperation model centers on domestic regional equipment supply, customized manufacturing, and localized engineering technical services, supporting technical solution alignment, prototype trial use, and small-batch order fulfillment.

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 Lvshunkou Xigou Construction Materials Factory is registered at Xigou Village, Shuishiying Subdistrict, Lvshunkou District, Dalian City, Liaoning Province. It is a micro-enterprise established in 1973 and continuously operating since then. Its core business focuses on wholesale and retail of building materials and decorative materials, as well as construction services for interior and exterior decoration and renovation projects. Its scope of business operations is explicitly limited to the sale of building materials, decorative materials, hardware, electric appliances, chemical products (excluding hazardous chemicals), and metal materials, as well as basic decoration and renovation construction services. Currently, the company’s available cooperation models are restricted to decoration and renovation construction for general office and auxiliary facilities within domestic non-hazardous chemical industrial parks, or serving as a regional supplier of building materials and general auxiliary materials.

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 Longping Decoration Engineering Co., Ltd. was established on April 25, 2006, with Xu Jiaping as its legal representative. Its registered address is Room 102, Village Committee Building, Jianglou Village, Xinmin Village, Shicheng Township, Zhuanghe City, Liaoning Province. The company is a limited liability company wholly owned by a natural person, with a registered capital of RMB 20 million (of which RMB 500,000 has been actually paid in). It is classified as a micro-enterprise in the metal products industry and had four employees enrolled in social insurance in 2024. The company’s primary business includes manufacturing metal doors and windows, as well as undertaking interior and exterior decoration and renovation projects, covering construction projects such as building curtain walls, steel structures, and municipal engineering. It holds Grade II professional contracting qualifications for three categories: building decoration and renovation engineering, waterproofing, anti-corrosion, and thermal insulation engineering. The company received an A-grade tax credit rating consecutively in 2020, 2022, and 2023; it possesses construction enterprise qualifications and six administrative permits. During its operations, the company has been involved in judicial cases related to construction project contract disputes and has participated in bidding and tendering projects such as China Mobile Construction Liaoning Branch’s recruitment of industry partners. Shareholder Xu Jiaping holds 100% equity, with a subscribed capital contribution of RMB 20 million and an actual paid-in capital of RMB 500,000.

Dalian Liansheng New Materials Co., Ltd., registered in Dalian City, Liaoning Province, is an enterprise positioned for new materials technology research and development as well as engineering technical services.