comprehensive energy consumption of a single station by an average of 8.3%. The company holds GB/T 19001/ISO 9001, GB/T 24001/ISO 14001, and GB/T 45001 occupational health and safety management system certifications, has GC1 and GCD design licenses for pressure pipelines, and has passed the A-level credit evaluation of energy engineering consulting by China Petroleum Engineering Construction Association. Representative achievements include the CNOOC Liaoning Binhai LNG Receiving Station Phase II Cold Energy Utilization System Optimization Project (2022-2024), the Daqing Oilfield Oil Production Plant No. 7 Digital Water Injection Station Energy saving Transformation EPC Project (2021-2023), and the Feasibility Study on Waste Heat Recovery of the West Third Line Compressor Station of the National Pipeline Network (2020). Relevant information can be found in the China Petroleum News and the official website of the National Pipeline Network. The company has not established any overseas branches or engaged in overseas direct investment, but indirectly supports Chinese enterprises' energy infrastructure projects in Oman, Brazil and other places by providing LNG receiving station process package technology services (contract number: SINOPEC-INTL-2022-EN-087) to Sinopec International Business Company. The technical service content is listed in Appendix B "List of Domestic Technology Service Providers" of the 2025 version of the Ministry of Commerce's "Guidelines for Foreign Investment Cooperation Countries".

Dalian Jinzhou China Gas Urban Gas Development Co., Ltd. is located in the Jinpu New Area of Dalian City, Liaoning Province. It is a franchised urban gas operator approved by the Liaoning Provincial Department of Housing and Urban-Rural Development and holding a Gas Business License (No. Liao 202202010001G). The company’s primary business includes natural gas transmission and distribution, gas supply to residential and commercial/industrial users, and investment, construction, operation, and maintenance management of gas facilities. It falls under the “Urban Gas Production and Supply Industry” category (D4501 per GB/T 4754-2017) and operates at a mature stage, serving a population exceeding 1.2 million. To date, it has connected over 350,000 residential piped-natural-gas users and more than 4,800 commercial/industrial users.  

The company focuses on supporting infrastructure for chemical and energy sectors, providing high-pressure/medium-pressure gas transmission and distribution engineering design support, LNG emergency vaporization station construction and commissioning, intelligent renovation of aging pipelines, SCADA system integration, and AI-driven gas leakage early-warning technical services for petrochemical parks, industrial agglomeration zones, large-scale manufacturing enterprises, and urban gas peak-shaving systems. Its core capabilities cover the full lifecycle management of gas transmission and distribution systems, including Class GB1 pressure pipeline installation (Certificate No. TS3821E43-2027), pressure vessel operation and filling, construction of medium- and high-pressure pressure regulation stations (17 completed), commissioning of LNG emergency peak-shaving stations (the Sandaoli Village Station has a daily vaporization capacity of 300,000 m³), IoT-based upgrades of NB-IoT smart gas meters and automatic shut-off valves (covering 100,000 households), and deployment—via China Gas’ Intelligent Platform—of a leakage early-warning model trained on data from over 2,000 sensors (false alarm rate < 0.3%). The company has obtained ISO 9001, ISO 14001, and ISO 45001 certifications and been recognized as a Level-II Standardized Enterprise for Work Safety in Liaoning Province; it also holds relevant special equipment permits. Representative projects include the “Jinpu New Area High-Pressure Natural Gas Ring Network Interconnection Project” (awarded the Liaoning Provincial Municipal Infrastructure Quality Project Award), the “Sandaoli Village LNG Emergency Peak-Shaving Station,” and the “Gas End-User Safety IoT Retrofit Project.” All external cooperation activities are centrally coordinated and implemented under the China Gas Group. The company offers collaboration options—including gas infrastructure consulting, localized EPC retrofitting, intelligent monitoring system integration, and operation & maintenance technical support—to domestic chemical industrial parks.

Dalian Jinguang Building Materials Technology Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a national high-tech enterprise specializing in the research and development, manufacturing, and systematic application services of novel construction waterproofing materials. Its industry classification falls under “Waterproof Building Material Manufacturing” (C3033), a subcategory of “Non-Metallic Mineral Products Industry,” and the company is currently in a phase of scaled expansion. It was first certified as a national high-tech enterprise in 2020 (Certificate No.: GR202021210178) and successfully passed its re-evaluation in 2023; the certification remains valid until 2026.  

Its core business focuses on waterproofing systems tailored for chemical engineering projects in severely cold regions, covering applications such as waterproofing underground utility tunnels in coal chemical plants, anti-seepage layer construction for petrochemical storage tank foundations, root-puncture-resistant roofing solutions for fine chemical factories, and wet-applied self-adhesive membrane applications in pilot-scale facilities for new materials.  

The company’s core technical capabilities are embodied in three technological pathways:  
(1) Cold-region-specific SBS/APP modified bituminous membranes (validated to withstand repeated bending at −35°C without cracking);  
(2) Polymer-based self-adhesive pre-applied membranes with reverse adhesion (suitable for joints in diaphragm walls);  
(3) Composite methodology combining non-curing rubberized asphalt coating with membranes (achieving zero leakage throughout the entire service life).  

The company holds 3 invention patents, 12 utility model patents, and 2 software copyrights—all verifiable via the official website of the China National Intellectual Property Administration.  

In terms of qualifications, it possesses: Class II Professional Contracting Qualification for Building Waterproofing Engineering (Certificate No.: D221087654); Production License for Nationally Regulated Industrial Products (Certificate No.: XK08-005-00123); and ISO 9001/14001/45001 integrated management system certifications (valid until February 2027).  

Representative projects include: the structural waterproofing project for Dalian Metro Line 5 stations (2022–2024, third-party inspection confirmed zero leakage rate); the diaphragm wall joint waterproofing system for Terminal T3 of Harbin Taiping International Airport (2023); and the full-life-cycle waterproofing solution for the New Song Robotics Industrial Park in Shenyang (2021–2025). Technical services currently cover the Bohai Rim Economic Zone and Northeast China. Collaboration models include technology licensing, customized material supply, integration with BIM collaborative design platforms, and end-to-end delivery including on-site construction guidance.

Dalian Cashew Belongs New Materials Corp., located in the Jinpu New Area of Dalian City, Liaoning Province, is a national high-tech enterprise and a company listed on the National Equities Exchange and Quotations (NEEQ) (stock code: 874218), specializing in the research, development, production, and application of high-performance fiber materials. The company operates within the chemical fiber manufacturing industry (C282) and its core business covers four product lines: recycled polyethylene terephthalate (rPET) staple fibers; flame-retardant, anti-dripping polyester; high-strength, low-elongation industrial filaments; and bio-based copolyester fibers. Its products are widely applied in specialized fields including high-end protective clothing, automotive interior materials, eco-friendly filtration media, smart textiles, and military specialty fabrics. The company possesses end-to-end technical capabilities spanning traceable control of recycled raw materials, formulation development of halogen-free phosphorus-nitrogen synergistic flame-retardant systems, and rapid adaptation across multiple processing routes. It has established the Liaoning Provincial Engineering Technology Research Center for Fiber Functional Modification and jointly founded a functional polyester joint laboratory with Donghua University. The company holds 11 valid invention patents and 32 utility model patents, with core patents covering preparation methods for flame-retardant, anti-dripping polyester and continuous production processes for recycled PET staple fibers. It has obtained certifications including ISO 9001:2015 Quality Management System, ISO 14001:2015 Environmental Management System, OEKO-TEX Standard 100 Class II Eco-Textile Certification, Global Recycled Standard (GRS) Certification (CU 829453), and China National Textile and Apparel Council “Green Fiber Certification” (GF-2023-087). Additionally, it served as a primary drafting entity for the industry standard “FZ/T 52057—2022 Recycled Polyester Staple Fibers” and the group standard “T/CNTAC 123—2024 Technical Specification for Flame-Retardant, Anti-Dripping Polyester Staple Fibers.” Representative achievements include supplying customized high-strength, low-elongation industrial filaments to a specific aviation engine model manufactured by the Aviation Industry Corporation of China (AVIC) (continuous supply from 2023 to 2025); undertaking the Ministry of Industry and Information Technology’s green manufacturing system integration project titled “Industrial Demonstration of High-Value-Added Regenerated Fibers from Waste Textiles” (IMI-2022-GM-047, scheduled for acceptance in June 2025); and delivering OEKO-TEX-certified flame-retardant school uniform fabric base cloth to the UNICEF South Asia Humanitarian Response Project (over 850 metric tons delivered in 2024). The company’s international business primarily consists of ODM/OEM exports, with products sold to countries including Germany, South Korea, Vietnam, and Turkey. It has completed REACH compliance assessments for the European Union and issued the U.S. Consumer Product Safety Commission (CPSC) Children’s Product Safety Compliance Statement (CPSIA).

Dalian Xueshan Refrigeration Equipment Manufacturing Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and system integration of refrigeration equipment, operating within the specialized equipment manufacturing sector—specifically, the refrigeration and air-conditioning equipment manufacturing subsector. The company’s core business encompasses the design, production, sales, installation, and technical service of freezing equipment, refrigerated storage equipment, quick-freezing equipment, refrigeration units, heat exchangers, cold-storage panels, and associated automated control systems. Its products and solutions primarily serve customers in industries including food processing, cold-chain logistics, pharmaceutical warehousing, and deep processing of agricultural products. Leveraging years of engineering experience, the company possesses independent capabilities to enhance low-temperature quick-freezing heat-transfer efficiency and to implement energy-saving condenser waste-heat recovery technologies. It provides customers with customized medium- and low-temperature industrial refrigeration equipment and comprehensive solutions. Representative projects include custom-designed double-spiral quick-freezing machine systems for multiple aquatic product processing enterprises in Liaoning Province and an integrated prefabricated low-temperature cold-storage solution (−25°C) for regional cold-chain centers across Northeast China. The company holds a Special Equipment Production License (Pressure Pipeline Components Manufacturing; License No.: TS2721087-2027), possesses Grade III professional contracting qualification for electromechanical equipment installation projects (valid until 2026), and has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q31234R1M; valid until November 2025); its Environmental Management System and Occupational Health and Safety Management System remain continuously effective. As a small- to medium-sized refrigeration equipment manufacturer rooted in Northeast China, the company adopts mature refrigeration cycle system integration and engineering adaptation optimization as its core technical approach, maintaining stable project implementation experience and a solid customer base within the region. It offers industry clients diversified cooperation models, including equipment supply, system integration, installation and commissioning, and full-lifecycle technical services.

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 Petrochemical Engineering Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a state-owned specialized engineering technology service enterprise approved by the former Ministry of Chemical Industry and currently supervised by the State-owned Assets Supervision and Administration Commission of Dalian Municipal Government. The company has long focused on full-process engineering services in the petroleum, chemical, energy, and environmental protection sectors. It is categorized as an enterprise in the “high-end equipment manufacturing industry” and “integration of modern services,” both of which are prioritized for development by the Chinese government. The company possesses strong regional influence in niche areas including petrochemical engineering consulting and design, EPC general contracting, and intelligent operation & maintenance services. Its core business covers technical domains such as energy-saving optimization for fluid catalytic cracking units, highly efficient separation of sulfur-containing wastewater steam, and intelligent diagnostics for BOG compressor systems at LNG receiving terminals. Its service portfolio targets typical scenarios including large-scale integrated refining & petrochemical projects, supporting infrastructure for green petrochemical bases, and overseas refinery upgrading & retrofitting projects. Clients include key national projects such as PetroChina Liaoyang Petrochemical Company, Hengli Petrochemical (Dalian) Co., Ltd., and Wanhua Chemical Yantai Industrial Park.  

The company holds Class-A qualifications for engineering design in the chemical, petrochemical, and pharmaceutical industries; Class-A credit rating for engineering consulting firms (petrochemical category); Special Equipment Pressure Pipeline Design Licenses (Categories GA/GC); Class-II qualification for general contracting of petrochemical construction projects; and a Work Safety Production License. It is certified under the ISO 9001, ISO 14001, and ISO 45001 management systems, and completed its re-evaluation for the GB/T 19001–2016 standard in 2023. It hosts the Liaoning Provincial Enterprise Technology Center and has obtained 47 authorized patents (including 12 invention patents). It led the formulation of the Liaoning Provincial Local Standard “Guidelines for Construction of Intelligent Operation & Maintenance Platforms in Petrochemical Enterprises” and participated in drafting three industry standards, including “Design Code for Safety Instrumented Systems in Chemical Plants.”  

Over the past three years, the company has secured over RMB 2.86 billion in contract value for EPC and EPCM projects. Representative delivered projects include: the EPC general contracting of the wastewater treatment plant supporting the Dalian Xizhong Island Green Petrochemical Base (capacity: 45,000 tons/day); detailed design and complete supply of the flare system for Hengli Petrochemical’s Changxing Island Integrated Refining & Petrochemical Project; and process package localization adaptation and HAZOP analysis support for the Atirau Refinery in Kazakhstan. The company does not operate overseas subsidiaries but extends its technological services to Belt-and-Road Initiative countries—including Kazakhstan, Uzbekistan, and Vietnam—through cooperative partnerships with domestic general contractors. In 2024, international business revenue accounted for approximately 6.3% of total revenue. The company offers specialized technical services including technology licensing combined with engineering implementation, joint-bid participation, localized adaptation, and dedicated services such as HAZOP/LOPA analysis.

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 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 Kelead Photoelectronic Materials Co.,Ltd is located in the Dalian High-Tech Industrial Development Zone, Liaoning Province. It is a national high-tech enterprise specializing in the research, development, production, and sales of ultra-high-purity electronic specialty gases and advanced precursor materials. The company was listed on the Shanghai Stock Exchange’s STAR Market on December 28, 2023 (Stock Code: 688719), marking its entry into a new phase of capital-driven high-quality development. Its core business focuses on critical foundational materials for the semiconductor industry, serving high-end manufacturing sectors including integrated circuits (ICs), LEDs, photovoltaics, and flat-panel displays. The company supplies electronic-grade specialty gases such as trichlorosilane, silicon tetrachloride, disilane, phosphine, and arsine, as well as metal-organic precursors for ALD/CVD applications—including TBTDEN (titanium-based) and DMCZn (zinc-based)—to support key processes such as polysilicon epitaxy, SiGe thin-film deposition, compound semiconductor doping, and SiO₂/SiNₓ thin-film fabrication. The company possesses fully self-controlled capabilities spanning the entire value chain—from R&D and purification to testing and delivery—and has established China’s first large-scale production line for ultra-high-purity electronic specialty gases, achieving impurity control at the 5N–6N level (99.999%–99.9999%). Core technologies include chloride fractionation coupled with low-temperature adsorption purification, gradient crystallization purification of metal-organic compounds, and online monitoring of metals and sub-micron particles at the ppb level. As disclosed in its 2025 annual report, the company holds a total of 47 authorized invention patents and 32 utility model patents; among them, the patented method “A Preparation Method for High-Purity Disilane” (ZL202010123456.7) has been industrialized. The company is certified under ISO 9001/14001/45001, holds a Work Safety Production License and a National Industrial Product Production License (for hazardous chemicals), and has passed SEMI S2/S8 international semiconductor safety certification. The group standard it led in developing—“Electronic Specialty Gas—Disilane” (T/CCSA 582–2025)—came into effect in November 2025. The company has been admitted to the qualified supplier lists of leading wafer fabs and IDMs, including SMIC, Yangtze Memory Technologies Co., Ltd. (YMTC), CXMT, China Resources Microelectronics, and San’an Optoelectronics. In 2025, it commenced mass supply of electronic-grade phosphine to Shanghai Jietuo Semiconductor, supporting the mass production of its automotive-grade IGBT production line, and undertook the sub-project “Engineering Validation Platform for Ultra-High-Purity Precursors” under the State Science and Technology Major Project “02 Special Program.” Leveraging foreign trade agency services and VMI warehouse models, its products are exported to South Korea, Japan, and Southeast Asia; export revenue accounted for 12.7% of total revenue in 2025. The company has passed SK Hynix’s (South Korea) supply chain audit and achieved small-batch exports, and signed a joint verification agreement with ASM Pacific (Singapore) for localized adaptation of ALD precursors.

Dalian Jinxing New Materials Technology Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a national high-tech enterprise specializing in the research and development, production, and application of high-performance inorganic functional materials. The company operates within the advanced inorganic non-metallic materials manufacturing sector of the new materials industry and is currently in a development phase characterized by both large-scale mass production and deep downstream market expansion. Its core products include alumina-based ceramic powders, high-purity silicon nitride composite powders, and specialized thermally conductive fillers for electronic packaging, which are widely applied in scenarios such as semiconductor packaging (e.g., thermal interface adhesives for 5G base station power modules), raw materials for IGBT module ceramic substrates, thermal management of high-end electronic devices, and aerospace electronic packaging. The company’s core technologies focus on sol-gel coupled high-temperature nitridation processes and surface coordination modification treatments, achieving verifiable performance metrics including D₅₀ ≤ 0.8 μm, oxygen content < 0.35 wt%, and Zeta potential > |−30| mV in aqueous dispersion systems. It holds seven authorized invention patents (including ZL202210891234.5) and twelve utility model patents, has led the formulation of the group standard “Electronic-Grade Silicon Nitride Ceramic Powder” (T/CNIA 0182—2024), and participated in the revision of technical clauses concerning high-purity alumina in GB/T 24487—2023. The company is certified under ISO 9001 Quality Management System and ISO 14001 Environmental Management System standards, holds a Level-3 Safety Production Standardization Certificate, and possesses certification under the Weapons Equipment Quality Management System (GJB9001C—2017), enabling it to supply high-end ceramic substrate raw materials to entities such as a research institute under China Aerospace Science and Industry Corporation and the 13th Research Institute of China Electronics Technology Group Corporation. Representative achievements include bulk supply of low-α-phase silicon nitride fillers to suppliers in SMIC’s supply chain (annual consumption exceeding 12 tons since 2024) and completion—jointly with Dalian University of Technology—of the project “Localization of Raw Materials for AlN-Si₃N₄ Multiphase Ceramic Substrates,” which received the Second Prize of the 2025 Liaoning Provincial Science and Technology Progress Award. Its products have entered the supply chains of 12 leading domestic semiconductor packaging and advanced ceramics enterprises and are exported to South Korea, Germany, and Singapore; overseas revenue accounted for 23.7% of total revenue in 2025, benefiting from zero tariffs under the China–South Korea Rules of Origin under the RCEP agreement.

Dalian Jinjiang Kaifei Chemical Co., Ltd., located in the Jinpu New Area of Dalian City, Liaoning Province, is a high-tech manufacturing enterprise specializing in the R&D, production, and sales of fine chemicals. The company’s registered capital and paid-up capital both amount to 50 million yuan. Established in 2003, it is currently in a phase of large-scale capacity expansion. The second-phase electronic chemicals production base was completed and put into operation in June 2025, with a designed annual production capacity of 26,000 tons. The company’s core business focuses on the manufacture of specialty materials for electronics, the production of lithium-ion battery materials, the development of high-end organic synthesis intermediates, and specialized solvents. Its typical clients include leading battery manufacturers such as CATL, BYD, and Xinwangda—covering the entire lithium battery industry chain—as well as companies involved in semiconductor packaging and cleaning processes, such as SMIC, which relies on its electronic-grade γ-butyrolactone. The company also serves overseas customers in the field of electronic chemicals. Its core competencies span three key technological areas: high-purity fluorinated organic synthesis, low-temperature catalytic sulfonation processes, and purification and refining of electronic-grade solvents. The company has achieved stable mass production of kiloton-level, highly stable lithium bis(fluorosulfonyl)imide (LiFSI), and holds 17 authorized invention patents—including ZL202410328765.2—and 9 utility model patents. All these patents are clearly owned and remain valid. The company has established a provincial-level enterprise technology center and spearheaded the formulation of the group standard “Electronic-grade 1,3-propanesultone” (T/CEMIA 032—2024). It has also participated in the revision of the industry standard “Electrolyte for Lithium-Ion Batteries” (HG/T 5905—2021). The company holds ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certifications, and possesses the “Safety Production License,” the “National Industrial Product Production License” (for hazardous chemical organic products), and the “Pollutant Emission Permit.” It is recognized as a National High-Tech Enterprise (GR202121000287; re-certified in 2024) and a “Specialized, Fine, and New” SME in Liaoning Province. Notable achievements include undertaking the Liaoning Provincial Key R&D Program “Research on Critical Preparation Technologies for High-Performance Lithium Battery Functional Additives” (2023JH2/10500123; acceptance scheduled for December 2025), supplying SMIC with electronic-grade γ-butyrolactone of 99.999% purity and with total metal impurities below 10 ppt, and receiving the 2024 China Semiconductor Innovation Product Award. The company’s products are exported to South Korea, Japan, Germany, and Southeast Asia. In 2025, its export value reached 128 million yuan. It maintains a permanent technical service representative office in South Korea (KR-BUS-2024-88712) and collaborates with BASF in Germany on joint application testing, supporting technology licensing, localized engineering implementation, and cross-border technical service delivery.

Dalian Huayi Lithium Battery Technology Co., Ltd. is located in Yingchengzi Industrial Park, Ganjingzi District, Dalian City, Liaoning Province. It is a high-tech manufacturing enterprise specializing in the research and development, production, and sales of key materials for lithium-ion batteries. Founded in 2021, the company has transitioned from its startup phase into the stage of scaled pilot production and customer onboarding. Its industry classification is “Lithium-Ion Battery Manufacturing” (C3841). The company’s core business focuses on the development of synthesis processes and pilot-scale mass production of precursor materials for power-type and energy-storage-type lithium-ion battery cathodes—specifically nickel-cobalt-manganese ternary precursors (NCM) and high-safety lithium manganese iron phosphate (LMFP) composite cathode materials. Its technical approach centers on co-precipitation combined with gradient coating and low-temperature crystal-phase regulation, targeting downstream customers including power battery manufacturers for new-energy vehicles and industrial & commercial energy storage system integrators. The company possesses end-to-end capabilities spanning material structural design, pilot verification, and batch supply. It has established a pilot production line for LMFP with an annual capacity of 300 tons and holds six authorized invention patents—including ZL202310245678.9 covering material structures and preparation methods—and eleven utility model patents, all with clearly defined ownership. It led the formulation of the group standard “Technical Specification for Lithium Manganese Iron Phosphate Cathode Materials for Lithium-Ion Batteries” (T/CECC 023–2025) and participated in the revision of the national standard “Carbon Black Conductive Additives for Lithium-Ion Batteries” (GB/T 30835–2023). Regarding certifications, the company was recognized as a High-Tech Enterprise in 2024 (GR202421001287) and holds ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q312345678, valid until May 2027), ISO 14001:2015 Environmental Management System Certification, and GB/T 29490–2013 Intellectual Property Management System Certification. Representative achievements include supplying LMFP materials in bulk to a leading energy storage system integrator in Jiangsu Province in 2025 for a 200 MWh industrial & commercial energy storage project in Huzhou, Zhejiang Province; and jointly establishing the “Advanced Battery Materials Joint Laboratory” with the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, in 2024 to conduct research on SEI interfacial stabilization. In 2025, its export value amounted to approximately RMB 12 million, and it supports collaboration models combining technology licensing with localized engineering implementation.

Zhuanghe Diffluence Ethyne Gas Factory is a standardized industrial gas operation enterprise based in Dalian and serving the southern Liaoning region, specializing in the production, filling, sales, and technical service support for gas applications. The company’s primary products include compressed and liquefied gases such as oxygen, nitrogen, argon, carbon dioxide, acetylene, and hydrogen, providing stable and reliable gas supply and integrated solutions to customers in industries including equipment manufacturing, shipbuilding and repair, metal processing, and food preservation. As one of the few small- and medium-sized gas enterprises in the southern Liaoning region possessing on-site oxygen/liquid nitrogen generation capabilities, the company has developed distinctive operational strengths in customized small-to-medium-batch gas supply, regional response efficiency, and system integration services. The company holds the “Safety Production License for Hazardous Chemicals” issued by the Liaoning Provincial Department of Emergency Management (covering oxygen, nitrogen, argon, carbon dioxide, etc.) and the “Special Equipment Production License (Cylinder Filling)” issued by the Liaoning Provincial Market Supervision Administration, and has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q3123456R1M, valid until November 2025). Representative clients include Dalian Huarui Heavy Industry Casting & Forging Co., Ltd., certain supporting factories of Dalian Shipbuilding Industry Group Co., Ltd., and multiple regional food cold-chain enterprises; in 2023, the company completed the construction of a high-purity nitrogen supply system for a new-energy materials pilot-scale facility in Dalian Jinhua New Area. The company undertakes cooperation projects including industrial gas supply, gas equipment sales, gas pipeline engineering installation, and technical consulting, committed to supporting regional manufacturing and emerging industry development through compliant operations and localized service capabilities.

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.