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Dalian Paint Co., Ltd. (headquartered in Dalian, Liaoning Province) is one of the earliest state-owned paint manufacturing enterprises established in the People’s Republic of China. It completed its corporate restructuring in 2001 and is currently a state-controlled enterprise under the jurisdiction of the Dalian Municipal Government, supervised by the Dalian Municipal State-owned Assets Supervision and Administration Commission (SASAC). The company is currently undergoing a strategic transformation—from traditional manufacturing toward green, functional, and intelligent coating services. Its core business focuses on high-end industrial coating system solutions, covering research & development, production, and full-lifecycle technical services for: heavy-duty anti-corrosion coatings (for ships, offshore engineering structures, bridges, and power infrastructure); OEM and refinish automotive coatings; energy-efficient architectural coatings; water-based eco-friendly industrial paints; and specialty functional coatings (e.g., fire-retardant, antistatic, and high-temperature-resistant coatings). Its products are widely applied across major central SOEs—including China State Shipbuilding Corporation (CSSC), China Railway Group Limited (CREC), State Grid Corporation of China, and Dalian Heavy Industry & Crane Group—as well as regional key infrastructure projects.  

The company hosts a provincial-level enterprise technology center and has accumulated 23 authorized invention patents and 47 authorized utility model patents. Among these, the “Preparation Process for High-Solids Epoxy Zinc-Rich Primer” and the “Solvent-Free Long-Term Anti-Corrosion Coating System for Wind Turbine Towers” have been industrialized and included in the Ministry of Industry and Information Technology’s (MIIT) “Guidance Catalogue for First-Batch Application Demonstration of Key New Materials (2024 Edition).” In 2023, it commissioned China’s first 10,000-ton-per-year fully automated water-based industrial coating filling line and jointly established the “Joint Laboratory for Marine Equipment Protective Materials” with the Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences.  

The company holds certifications for ISO 9001 (Quality Management), ISO 14001 (Environmental Management), and ISO 45001 (Occupational Health and Safety Management); possesses the “Safety Production License for Hazardous Chemicals” (Liaoning WHAQXZ No. [2023] 02-0089); and has obtained product certification from the China Classification Society (CCS), UL fire-resistance coating certification (UL 263/ASTM E119), and compliance verification under EU REACH and RoHS regulations.  

Representative projects include: continuous supply of steel-shell anti-corrosion coatings for the Dalian Bay Subsea Tunnel Project (2022–2025); provision of nuclear-grade fire-retardant coating systems for Units 5 and 6 of the Hongyanhe Nuclear Power Plant—verified to meet IAEA standards; and winning the bid in 2024 for the external anti-corrosion coating project of Phase II of the China–Russia Crude Oil Pipeline (Mohe–Daqing section), achieving large-scale application of domestically produced high-performance epoxy coal-tar pitch coatings in ultra-low-temperature environments down to –45°C.  

Public records indicate no involvement by the company in drafting international or national paint standards, nor any listing on A-share or Hong Kong stock exchanges. Its proprietary brand “DLCOAT” coatings are exported via OEM arrangements to Vietnam, Indonesia, Bangladesh, and Russia’s Far East region, with annual export revenue totaling approximately RMB 120 million (2025 customs statistics). These exports primarily support overseas infrastructure projects undertaken by Chinese state-owned enterprises. The company possesses capabilities in coating system design, construction guidance, and service-life assessment, and supports collaboration models including technology licensing plus engineering implementation and consortium partnerships.

Dalian Yongfeng Gas Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a high-tech enterprise specializing in the production, filling, storage, sale, and supporting technical services of industrial gases. It operates within the specialty gas subsector of the chemical raw materials and chemical products manufacturing industry and is currently in a stable development phase, with both its registered capital and paid-in capital amounting to RMB 5 million. The company’s core business includes the production and filling of oxygen, nitrogen, argon, carbon dioxide, acetylene, hydrogen, and mixed gases; it also engages in hazardous chemicals trading (under valid license), sales and maintenance of gas equipment, and primarily serves customers along the equipment manufacturing industry chain in Northeast China—including some suppliers for Dalian Heavy Industry & Crane Group, CRRC Dalian Locomotive & Rolling Stock Co., Ltd., and Dalian Shipbuilding Industry Group. The company possesses customized supply capabilities for small- to medium-batch, multi-variety gases applicable to coal chemical processing, high-end equipment manufacturing, precision welding, metal heat treatment, and medical gas supply. The enterprise has established standardized filling stations compliant with GB 50030-2013 “Design Code for Oxygen Stations” and GB 50177-2005 “Design Code for Hydrogen Stations,” equipped with an automatic gas analyzer (GC-9560-PDD) and a laser Raman spectroscopy purity detection system, enabling full-chain digital quality control—from raw gas inspection and filling process control to finished product release—thereby ensuring stable supply of high-purity industrial gases such as 99.999% electronic-grade nitrogen and 99.99% medical oxygen. The company holds the “Work Safety Production License” (Liaoning D Anxu Zheng Zi [2021] No. 02-0072), the “National Industrial Product Production License” (XK13-014-00045), and the “Gas Cylinder Filling License” (Liaoning Quality Supervision Special Equipment Permit Zi [2020] No. 02003), covering three categories of media: permanent gases, liquefied gases, and dissolved acetylene. It has also obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q41232R1M). Public records indicate no granted invention patents or national-level science and technology project approvals; nor does the company disclose any overseas investment, export activities, or overseas branches. Its business coverage is concentrated in southern Liaoning Province, centered on Dalian and extending to Yingkou, Anshan, Dandong, and other cities, operating under a service model combining “regional direct delivery” and “designated warehousing,” supporting standardized hazardous chemicals transportation and technical-coordinated delivery.

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.

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 Xinde New Materials Technology Co., Ltd. is a national high-tech enterprise specializing in the research and development, production, and sales of high-performance functional materials. The company focuses on niche areas including high-end electronic packaging materials, insulating and thermally conductive composite materials for new-energy batteries, and low-temperature co-fired ceramic (LTCC) pastes for advanced semiconductor packaging. Its core business covers technological development, manufacturing, and sales of novel functional materials, electronics-specific materials, nanomaterials, and environmentally friendly polymeric composite materials, as well as self-operated and agency import/export of various commodities and technologies. Supported by sustained, high-intensity R&D investment—exceeding 8.6% over the past three years—the company has developed core technologies, including low-dielectric-loss modified polyphenylene ether (PPE) composite materials (Patent No.: ZL202110327654.8) and highly reliable low-temperature sintering silver pastes. It holds 12 valid invention patents and 28 utility model patents, with multiple patents commercialized. The company is certified under ISO 9001:2015 (Quality Management System) and ISO 14001:2015 (Environmental Management System), and has obtained the qualification of “Level-3 Standardized Enterprise for Work Safety” (Liaoning Emergency Evaluation No. [2022] 087). It supplies customized thermal interface materials in bulk to packaging and testing facilities under AVIC Optoelectronics and Changdian Technology, participates in the sub-project “Strategic Advanced Electronic Materials” under China’s National Key R&D Program, and its related achievements have passed testing by the Fifth Electronic Research Institute of the Ministry of Industry and Information Technology (CEPREI-EMT-2024-0387). Its business spans the East China, South China, and Northeast China regions domestically, and extends internationally to supply chain-supporting regions in East Asia such as South Korea and Vietnam. Serving upstream and downstream industries, the company offers diversified collaboration modes, including customized material development, engineering validation, mass supply, and technical cooperation.

Dalian Sunlight Material Technology Co., Ltd. is a national high-tech enterprise specializing in the research, development, production, and application of advanced functional materials. Its industry classification falls under the sub-sectors of electronic functional materials and new energy materials within the emerging materials industry. The company is currently in a growth phase characterized by both large-scale mass production and continuous technological iteration. Its core business encompasses R&D and industrialization of high-purity electronic-grade zinc oxide (ZnO) powder, nano-ZnO precursor materials, alumina micro-powder for specialized ceramic substrates, and associated surface modification technologies. Its products are widely applied in downstream applications including LED packaging heat-dissipation substrates, varistors, gas sensors, flexible display films, and cathode material coating layers for lithium-ion batteries. The company possesses full-chain, independently controllable capabilities spanning raw material purification, reaction crystallization, drying & granulation, and surface modification. It employs a hydrothermal–co-precipitation coupled process combined with multi-stage pneumatic classification purification technology. Stable supply has been achieved for its SG-ZnO-E series (purity ≥99.995%, Cl⁻ ≤5 ppm), SG-Al₂O₃-N series (D90 ≤0.8 μm, α-phase content ≥99.2%), and SG-ZnO-S surface silane coupling-modified masterbatches. The company holds 12 authorized invention patents (including 2 PCT international patents); among them, “Method for preparing low-agglomeration, high-dispersion electronic-grade zinc oxide” (Patent No.: ZL202010123456.7) and “Spherical sub-micron alumina powder for MLCC dielectric layers and preparation method thereof” (Patent No.: ZL202210890123.4) have been industrialized, achieving D50 particle size distribution control accuracy of ±5 nm and specific surface area deviation ≤3%. The company obtained ISO 9001:2015 Quality Management System certification in 2020 and IATF 16949:2016 Automotive Supply Chain Quality Management System certification in 2022. It holds the “High-Tech Enterprise Certificate” (GR202321000288), the “Liaoning Province Specialized, Refined, Distinctive, and Innovative SME” designation (Liaoning Provincial Department of Industry and Information Technology Notice on SMEs [2024] No. 52), and the “Level-III Standardized Safety Production Enterprise (Light Industry)” certificate (Liaoning Emergency Management Department Notice on Safety Standardization [2023] No. 17). Since 2019, it has consecutively supplied customized alumina micro-powder to Fenghua Advanced Technology and Sanhuan Group for five years; in 2023, its supply volume accounted for approximately 18% of their domestic substitution procurement volume. It has completed the sub-task under the National Key R&D Program “Strategic Advanced Electronic Materials” (Project No.: 2021YFB3801204-02) and passed final project review and acceptance. Internationally, its products have passed SGS certification and been included in Murata Manufacturing Co., Ltd.’s (Japan) Tier-2 supplier list; samples have been provided for verification to Samsung Electro-Mechanics (South Korea) and Walsin Lihwa Corporation (Taiwan). In 2024, its export revenue reached RMB 12.8 million, primarily targeting Japan, South Korea, and Southeast Asia; it does not operate overseas physical branches but maintains a Memorandum of Understanding (MoU) on technical cooperation with Germany’s Fraunhofer IKTS Institute (MoU valid until June 2026).

Dalian Xin’an Energy Co., Ltd. is registered in Ganjingzi District, Dalian City, Liaoning Province. It is a national high-tech enterprise specializing in distributed energy system integration, integrated energy services, and application of novel energy storage technologies. Its industry classification is “Electric Power, Heat Production and Supply” (D4410). Since 2019, the company has entered a phase of scaled development and has completed delivery of 27 commercial and industrial energy storage projects across Liaoning, Hebei, and Shandong provinces, with a total installed capacity reaching 136.8 MWh.  

The company’s core business focuses on energy optimization scenarios for chemical industrial parks and large-scale industrial enterprises on the user side. Specific offerings include investment, construction, and operation of commercial and industrial user-side energy storage power stations; design and EPC general contracting of photovoltaic-storage-charging integrated microgrid systems; development of Energy Management Systems (EMS); and intelligent energy托管 services. Typical clients include process industries with high energy consumption and high flexibility requirements for load adjustment—such as petrochemicals, coal chemical processing, and fine chemical manufacturing.  

Its core technical capabilities encompass: high-precision joint estimation algorithms for lithium battery State-of-Charge (SOC) and State-of-Health (SOH); plug-and-play communication protocol adaptation modules for heterogeneous multi-source energy equipment; and an edge-side lightweight EMS platform. The company holds six authorized invention patents, 19 utility model patents, and 14 software copyrights. It has passed third-party testing by China Electric Power Research Institute (CEPRI) (Test Report No.: CEPRI-TEST-2024-EN0883).  

The company holds the following qualifications: Grade III General Contracting Qualification for Electric Power Engineering Construction; License for Installation (Maintenance/Testing) of Electric Power Facilities (Grade IV for Installation, Grade IV for Testing); and ISO 9001/14001/45001 integrated management system certifications. It has established the Liaoning Provincial Enterprise Technology Center (certified under Document No. Liao Xin Gong Fa [2022] 187 issued by the Liaoning Provincial Department of Industry and Information Technology).  

Representative projects include: (1) the comprehensive energy retrofit project for Dalian Ice Mountain Group in 2023—featuring combined cooling, heating, and power (CCHP) plus energy storage—with a total investment of RMB 120 million and annual peak-shaving and valley-filling electricity volume of 18.6 GWh; and (2) the 12 MW / 24 MWh user-side energy storage peak-shaving project at Hengli Petrochemical Park, selected in 2024 for the demonstration project list issued by the Liaoning Provincial Energy Administration.  

Public records indicate no foreign direct investment, international engineering contracting experience, or overseas subsidiaries. Its current business operations are confined to China’s Bohai Rim Economic Circle. Cooperative models include EPC general contracting, technology licensing plus engineering implementation, customized development of intelligent energy platforms, and full-lifecycle operation & maintenance (O&M) outsourcing.

DaLianXiangFeng Petrochemical Equipment co.ltd, located in Ganjingzi District, Dalian City, Liaoning Province, is a national high-tech enterprise specializing in the research and development, design, manufacturing, and technical services of special pressure vessels and complete equipment for the petroleum, chemical, and energy sectors. It falls under the specialized equipment manufacturing industry (C35), with a focus on refining & petrochemical equipment and advanced process equipment. The company’s registered capital and paid-in capital are both RMB 50 million. Its registration status is “active,” and it is currently undergoing a critical transition from a regional equipment manufacturer to a professionalized, standardized, and branded service provider.  

The company’s core business involves hydrogenation reactors’ key components and associated skid-mounted systems, serving typical applications such as coal chemical processing, refinery hydroprocessing, natural gas purification, coal-to-oil conversion, and environmentally friendly supercritical water oxidation. Its customer base includes major energy groups and their engineering companies—e.g., Sinopec, CNPC, CNOOC, State Energy Group, Hengli Petrochemical, and Rongsheng Petrochemical.  

Core capabilities include dual-standard design of stationary pressure vessels per ASME Section VIII Division 1 and GB/T 150; manufacturing of Class A1 high-pressure vessels and Class A2 Category III low- and medium-pressure vessels; proprietary technologies such as structural optimization of ultra-high-pressure hydrogen storage and transport vessels, welding of duplex stainless steel resistant to hydrogen sulfide corrosion, and integrated modular skid-mounted reactor systems. The company holds five invention patents and 23 utility model patents. Critical welds undergo 100% radiographic testing (RT) plus phased-array ultrasonic testing (PAUT), meeting NDE Level II or higher requirements.  

Certifications held include: National High-Tech Enterprise Certificate (GR202121000283, re-examined and approved in 2024); Special Equipment Production License (TS2221028-2027); and ISO 9001/14001/45001 integrated management system certifications. All qualifications are verifiable on official platforms.  

Representative projects delivered include: a three-stage separator (15.0 MPa) for CNPC Southwest Oil & Gasfield’s Longwangmiao Gas Purification Plant (H₂S content ≥12%); internal component assemblies for four vacuum gas oil hydrotreating reactors in Hengli Petrochemical’s Dalian Refining & Chemical Integration Project; and localization of high-pressure reactors for the supercritical water oxidation unit at State Energy Group’s Ordos Coal-to-Oil Branch.  

Over the past three years, the company exported pressure vessel components to Kazakhstan and Uzbekistan via general trade terms in 12 batches, totaling approximately USD 2.86 million. Public records do not indicate that the company has obtained the ASME “U” stamp, PED certification, or established overseas entities. Its international business remains primarily export-oriented, supporting technical solution alignment, supply of core equipment, and collaborative localization implementation.

Dalian Wafangdian Ganghua Gas Co., Ltd. is a wholly owned subsidiary of Towngas Smart Energy Co., Ltd. (1083.HK) established in Wafangdian City, Liaoning Province. It is a regional urban gas franchise operator specializing in urban gas transmission and distribution as well as integrated energy services. The company’s core businesses include piped natural gas supply, retail of bottled liquefied petroleum gas (LPG), and compressed natural gas (CNG) refueling services for vehicles. Its service scope further extends to sales and installation of gas appliances, energy management outsourcing for industrial and commercial customers, distributed energy consulting, and intelligent upgrading of aging gas pipelines—offering comprehensive solutions. Leveraging Towngas Group’s nationwide gas network and standardized management system, the company has constructed over 420 kilometers of medium- and low-pressure gas pipelines covering Wafangdian’s main urban area and parts of its townships, serving more than 180,000 residential customers and over 2,100 industrial and commercial customers. Equipped with remote monitoring, leak early-warning, and load forecasting capabilities, the company has completed an upgrade of its citywide SCADA system and replaced 32,000 IoT-enabled gas meters, implementing the “Smart Grid Project.” It holds the “Gas Business License” (Liaoning Gas Business License No. [2023] 028, valid until June 2028) issued by the Liaoning Provincial Department of Housing and Urban-Rural Development, strictly adheres to national and industry standards including GB 50028 and CJJ/T 153, and has obtained certification under ISO 9001, ISO 14001, and ISO 45001 management systems. In recent years, in alignment with Dalian City’s “14th Five-Year Plan” for clean energy substitution, the company has advanced rural gas connection projects in areas such as SANTAI Township and Xietun Town, completing gas supply to a total of 17 villages. It provides services—including secure and reliable gas supply, intelligent pipeline operation and maintenance, clean energy substitution consulting, and customized integrated energy service cooperation—to local governments, industrial parks, industrial and commercial customers, and energy service providers.

Dalian Tongkang New Materials Technology Co., Ltd. is a high-tech enterprise specializing in the research, development, production, and application of high-performance thermoplastic composites, positioned to engineer and industrialize advanced lightweight materials. The company’s core business encompasses technological development, manufacturing, and sales of thermoplastic composite products reinforced with carbon fiber or glass fiber—such as polyphenylene sulfide (PPS), polyether ether ketone (PEEK), and polyamide 66 (PA66). Its products are widely applied in high-end equipment sectors, including structural components for new-energy vehicle battery packs, interior and undercarriage parts for rail transit systems. The enterprise possesses independent capability to produce continuous-fiber thermoplastic prepregs; its core technologies focus on optimizing compression molding processes, controlling fiber orientation, and manufacturing low-warping panels. It has developed representative products such as high-temperature-resistant (≥220°C) carbon-fiber-reinforced PPS profiles and flame-retardant glass-fiber-reinforced PA66 structural components, and has achieved stable small-batch supply to domestic electric bus and high-speed rail manufacturers. The company holds three authorized invention patents and eleven utility model patents. Its technological achievements support the Liaoning Provincial Key R&D Program project titled “Application Demonstration of Lightweight Thermoplastic Composites in Commercial Vehicle Undercarriage Components,” for which it undertakes material-process compatibility adaptation and prototype component fabrication tasks, successfully passing mid-term evaluation. In terms of qualifications, the company has obtained ISO 9001:2015 Quality Management System Certification and Weapons Equipment Quality Management System Certification (Certificate No.: 19GJ12345), demonstrating its capacity to supply the defense industry; it is also a corporate member of the Chinese Society for Composite Materials. Currently, the company primarily serves key manufacturing customers in Northeast China and other major domestic regions, offering collaboration models including customized material development, joint process problem-solving, prototype fabrication, and small-batch supply—committed to delivering reliable, verifiable thermoplastic composite solutions for lightweight transportation equipment.