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Dalian Guohua Heating Supply Co., Ltd., located in Dalian City, Liaoning Province, is a municipal public utility enterprise registered with and approved by the Dalian Municipal Market Supervision Administration, possessing independent legal person status. The company primarily provides centralized urban heating services and serves as a regional backbone heating service provider, covering Zhongshan District, Xigang District, Shahekou District, and parts of the High-Tech Industrial Development Zone. Its registered capital amounts to RMB 50 million. The company’s registration status is “active,” and its core function at this stage is ensuring basic livelihood-related heating needs; it is currently focused on deepening operations within its region and maintaining compliant operations. The company’s main business activities center on four areas: thermal energy production and supply; inspection and maintenance of heating facilities; construction and renovation of heating pipelines; and promotion of energy-saving technologies. Its primary clients include urban public buildings, residential housing, and certain industrial heat-consuming entities. The company possesses foundational engineering implementation capabilities in scenarios such as aging pipeline replacement, waste heat recovery and utilization, and intelligent operational monitoring. Its core competencies include delivery of Class I heating pipeline renovation projects (approximately 28 kilometers completed cumulatively), integration with Dalian’s Intelligent Heating Supervision Platform enabling real-time transmission of pressure, temperature, and flow data, and stable energy supply leveraging waste heat recovery from Dalian Power Plant and its own natural gas-fired boiler plant. It offers end-to-end technical service support—from heat source integration and pipeline design/construction to remote operation and maintenance. Representative achievements include participation in Dalian’s “Three-Year Campaign for Renovation of Aging Heating Pipelines” under the city’s 14th Five-Year Plan, completion of pipeline renovations in the Jiefang Road area of Zhongshan District and the Beijing Street area of Xigang District, and consecutive annual recognition as an “Outstanding Heating Service Unit in Dalian City.” During the 2023–2024 heating season, its user complaint rate was 1.3 percentage points lower than the citywide average, and indoor temperature compliance rate exceeded 98.7%.

Dalian Fangyuan Air Conditioning Equipment Engineering Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a national high-tech enterprise specializing in the integration, design, installation, commissioning, and full-lifecycle operation and maintenance services of HVAC (heating, ventilation, and air conditioning) systems. Its industry classification falls under “intelligent building construction and HVAC engineering and technical services” within the building installation sector. The company is currently in a mature development stage, with registered capital of RMB 10 million and 32 employees covered by social insurance in 2025.  

The company’s core business focuses on specialized applications requiring stringent control over temperature, humidity, cleanliness, and system reliability—such as chemical industrial plants, pharmaceutical cleanrooms, and power station facilities supporting data centers—serving engineering projects in coal chemical, fine chemical, biopharmaceutical, and new materials sectors. Its core capabilities encompass end-to-end delivery of central air-conditioning systems, including building automation system (BAS) integration based on the BACnet protocol; installation and commissioning of HVAC equipment for large public buildings and industrial projects; renovation and upgrading of cleanroom air-conditioning systems; and long-term maintenance and technical support services. Technical implementation strictly adheres to specifications set by leading equipment manufacturers such as Gree, Midea, and McQuay, and the company possesses comprehensive execution capabilities spanning solution design, equipment selection, construction organization, and system integrated commissioning.  

The company holds two qualifications issued by the Liaoning Provincial Department of Housing and Urban-Rural Development: “Grade III Professional Contracting Qualification for Building Mechanical and Electrical Installation Engineering” and “Grade II Professional Contracting Qualification for Fire Protection Facilities Engineering” (Certificate No.: D321112222), both valid until December 2026. It also maintains ISO 9001:2015 / GB/T 19001–2016 Quality Management System Certification (issued by China Quality Certification Centre, CQC; certificate valid) and the Liaoning Province Work Safety Production License (License No.: Liao JZ An Xu Zheng Zi [2021] 020123).  

Representative projects include: the cleanroom air-conditioning system renovation project for Building E of the First Affiliated Hospital of Dalian Medical University (completed in 2022, contract value approximately RMB 8.6 million); the three-year maintenance and repair service contract for HVAC equipment at Terminal 2 of Dalian Zhoushuizi International Airport (awarded consecutively for 2023–2025, with annual service value exceeding RMB 3.2 million); and the air-conditioning automation system integration project for Phase II of Dalian Henglong Plaza (delivered in 2024).

Dalian Deta Hong Kong & China Gas Co., Ltd is located in the Jinpu New Area of Dalian City, Liaoning Province. It is one of the earliest urban gas enterprises in Northeast China to adopt a Sino-foreign joint venture business model, jointly established by a state-owned controlling platform and a Hong Kong Stock Exchange–listed company (Stock Code: 0003.HK). With registered capital of RMB 520 million, the company operates as a critical infrastructure provider for urban public utilities, focusing on gas production, transmission and distribution, and intelligent operation services. Its core businesses cover pipeline natural gas transmission and distribution, bottled liquefied petroleum gas (LPG) sales, and compressed natural gas (CNG) refueling services for vehicles. The company primarily supports urban energy supply in the Jinpu New Area and parts of the townships in Pulandian and Wafangdian, while also extending its services to low-carbon energy transition applications—including auxiliary gas peak-shaving for coal chemical industrial parks, LNG emergency storage and transportation, and demonstration projects for hydrogen-blended natural gas combustion. Its core capabilities include designing and operating regional IoT-based gas internet platforms, integrating SCADA systems, GIS, and AI-powered leak early-warning models to achieve millisecond-level monitoring of pressure, flow rate, and gas quality parameters across medium- and low-pressure pipeline networks. The company holds six national invention patents (including a multi-source data fusion risk assessment method) and 12 software copyrights; its algorithms have passed technical appraisal by the China Urban Gas Association. It possesses Grade III General Contracting Qualification for Municipal Public Utilities Construction and GB1-level Pressure Pipeline Installation License, enabling it to undertake EPC-type engineering projects such as replacement of aging cast-iron pipelines, construction of LNG peak-shaving stations, and integration of hydrogen-blended combustion systems. The company has obtained ISO 9001/14001/45001 integrated management system certifications, has passed Level II Safety Production Standardization Review in Liaoning Province for five consecutive years, and led the development of two provincial standards: “Technical Guidelines for Integrity Management of Urban Gas Pipelines in Liaoning Province” (DB21/T 3892–2024), among others. Representative projects include the comprehensive renovation of aging cast-iron pipelines across the entire Jinpu New Area (2021–2025, replacing 412 km of high-risk pipelines), the San Shili Bao LNG Emergency Peak-Shaving Station (commissioned in 2023, with 30,000 m³ storage capacity), and a field-tested project with 5% hydrogen blending ratio jointly implemented with the Dalian Institute of Chemical Physics, Chinese Academy of Sciences. As a key regional platform in mainland China for Towngas Smart Energy (HKEX: 1083), its operational data is integrated in real time into the Global Energy Management System (GEMS) cloud platform, subject to unified safety auditing and carbon accounting oversight from the Hong Kong headquarters. Its ESG reports are prepared in accordance with the TCFD framework and comply with CBAM transitional-period data requirements.

Dalian Deta Hong Kong & China Gas Engineering Co., Ltd is located in the Jinpu New Area of Dalian City, Liaoning Province. It is a mixed-ownership professional engineering enterprise specializing in investment, construction, and operation of urban gas infrastructure, and falls under the Towngas Energy Investment System. The company possesses full-chain capabilities covering design, construction, supervision, intelligent retrofitting, and system integration for gas engineering projects, and is currently in a development stage characterized by stable operations and incremental asset renewal. Its core business focuses on urban and town gas pipeline projects (including medium-pressure and higher-pressure grades), LNG vaporization station construction, integrated gas systems for commercial and industrial users, intelligent upgrades of aging cast-iron pipelines, and deployment of remote monitoring platforms for gas facilities. Its service scope covers typical scenarios such as coal chemical industrial park gas supply infrastructure, on-site gas pressure regulation and metering systems for petrochemical enterprises, LNG emergency peak-shaving gas supply for coastal cultural-tourism zones, and comprehensive energy stations in pilot free trade zones. Core competencies include GA1/GB1/GC2-grade pressure pipeline installation (subject to supervisory review by the Liaoning Provincial Market Regulation Administration in 2025), general contracting for municipal and mechanical & electrical engineering construction, and Class-B specialized design qualification for urban and town gas engineering. Leveraging GIS+SCADA, the company implements digitalized pipeline network management and has scaled up application of its self-developed “Intelligent Temperature-Controlled Electrofusion Welding Process for PE Pipes” (Patent No.: ZL202321498201.6), achieving a first-time welding pass rate of 99.82%. The company holds the “Special Equipment Production License,” “Construction Enterprise Qualification Certificate,” “Engineering Design Qualification Certificate,” and “Work Safety Production License,” and is certified under ISO 9001, ISO 14001, and ISO 45001 management systems. By the end of 2025, it will have completed laying over 1,200 kilometers of medium-pressure and higher-pressure gas pipelines, serving more than 450,000 residential users and over 3,800 commercial and industrial users. Representative projects include the citywide gas-to-home project for the Sānshílǐbù Subdistrict in Jinpu New Area (2022–2024), the Dalian Pilot Free Trade Zone Comprehensive Energy Station EPC General Contracting Project (commissioned in 2023), and the LNG Emergency Peak-Shaving Gas Supply System for the Jīnshítān Coastal Cultural-Tourism Zone (completed in 2025). The company’s business covers the entire Jinpu New Area of Dalian City and, as the Northeast China Regional Engineering Support Center of Towngas Energy, provides technical transfer and joint construction services to cities including Anshan, Yingkou, and Dandong. Internationally, cooperation manifests through supply chain synergy within the Towngas Group and technical alignment with international standards such as EN 1775:2021 and API RP 1173, supporting various collaboration models including consortium bidding, EPC general contracting, and technology licensing coupled with localized engineering implementation.

Dalian Datong Construction Engineering Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a Grade I general contracting enterprise for construction engineering projects, approved by the Department of Housing and Urban-Rural Development of Liaoning Province (Certificate No.: D121046972). The company has a registered capital of RMB 50 million and is currently in a stable development phase, with regional deepening and technical refinement as its strategic priorities. Its core business focuses on infrastructure and supporting projects related to the chemical industry, including EPC general contracting for industrial plants, renovation of existing chemical industrial parks, green and energy-efficient construction, and municipal supporting projects (including underground comprehensive utility tunnels). Its service portfolio covers coal chemical, fine chemical, new materials industrial park, and new energy equipment manufacturing projects. Its core competencies include integrated management of complex municipal and industrial projects; combined deep excavation support for soft soil foundations (certified as a provincial-level construction method); application optimization of BIM technology in prefabricated building construction; and integration of intelligent monitoring systems for excavation support. The company has obtained five utility model patents (e.g., ZL202120893456.7) and two software copyrights (e.g., 2022SR0876541), and has participated in drafting the Liaoning Provincial Local Standard “Code for Quality Acceptance of Prefabricated Concrete Structure Construction” (DB21/T 3782–2023). The company has been certified under ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health and Safety Management System (Certificate Nos.: 00122Q31234R1M, 00122E30987R1M, and 00122S30567R1M, respectively); its qualifications consistently meet dynamic verification requirements, and it has no record of administrative penalties or dishonesty. Representative projects include: Phase II Library of Dalian University of Technology’s Panjin Campus (awarded the 2024 Liaoning Province “Century Cup” Award); Municipal Road Renovation Project for the Dalianwan Subsea Tunnel (including concurrent implementation of a comprehensive utility tunnel); and Phase I EPC Project of Zhuanghe New Energy Equipment Manufacturing Industrial Park (contract value: RMB 418 million).

Dalian Shipbuilding Industry Group Co., Ltd. (DSIG), located in Dalian City, Liaoning Province, is a key state-owned enterprise directly managed by the central government and a core shipbuilding base under China Shipbuilding Group Co., Ltd. It was one of the 156 key projects during the First Five-Year Plan period and boasts an annual shipbuilding capacity exceeding 8 million deadweight tons, as well as comprehensive R&D, design, system integration, and total assembly and delivery capabilities across the entire shipbuilding value chain. The company’s core business spans five major sectors: military vessel development, civilian shipbuilding, offshore engineering equipment, high-end steel structure manufacturing, and integrated ship supporting systems. In chemical-related engineering service scenarios, DSIG provides critical support for specialized engineering needs associated with high-tech vessels such as LNG carriers, intelligent very large crude carriers (VLCCs), and polar research icebreakers—including low-temperature storage and transportation, smart energy management, polar corrosion-resistant structures, and dual-fuel propulsion system integration—serving industries including petrochemicals, liquefied natural gas (LNG) storage and transportation, deep-sea resource development, and marine environmental protection equipment. The company houses a national-level enterprise technology center, a national engineering laboratory (the Offshore Engineering Equipment Innovation Platform), and a postdoctoral research workstation. To date, it has been granted a total of 2,847 patents (including 1,321 invention patents) and has spearheaded or participated in the formulation and revision of 186 national, industry, and military standards, including key foundational standards such as GB/T 34000—2016 “China Shipbuilding Quality Standards” and CB/T 4474—2022 “Technical Requirements for Construction of Liquefied Natural Gas (LNG) Carriers.” DSIG has successfully obtained ISO 9001, ISO 14001, and ISO 45001 management system certifications, holds national secrecy qualification certification (Level I), a weapons and equipment research and production license, an A-level boiler and pressure vessel manufacturing license, and product recognition certificates from 12 globally leading classification societies, including China Classification Society (CCS), DNV, and BV. In 2024, DSIG also passed the EU MDR medical device compliance assessment for specially adapted vessels. Notable achievements include undertaking the overall construction of China’s three aircraft carriers—the “Liaoning,” “Shandong,” and “Fujian”—delivering 12 ultra-large 24,000 TEU dual-fuel container ships between 2022 and 2025, all of which meet the IMO Tier III emission standards; constructing the polar research icebreaker “Xuelong 2”; and launching in 2024 the world’s first demonstration project for a 300,000-ton intelligent crude oil carrier. Its products are exported to over 20 countries, including Greece, Singapore, Norway, and Brazil. In 2025, international orders will account for 41.7% of its total output. DSIG offers turnkey equipment packages compliant with international classification society standards, specialized material welding processes, digital twin system integration, and full-lifecycle technical services, supporting various cross-border cooperation models such as consortium partnerships, technology licensing combined with localized engineering implementation, and other collaborative approaches.

Dalian Shipbuilding Industry Group Co., Ltd. (short name: “DSIC”), headquartered in Dalian City, Liaoning Province, is a core subsidiary enterprise of China State Shipbuilding Corporation Limited (CSSC). Its predecessor was the Beiyang Fleet Ship Repair Yard established in 1898 during the late Qing Dynasty. DSIC is a central state-owned enterprise supervised by the State-owned Assets Supervision and Administration Commission of the State Council (SASAC), operating at a mature and stable development stage, and serves as a principal base for the research, development, and production of naval equipment and high-technology vessels in China. The company’s core business covers design, construction, and integrated outfitting of advanced marine engineering equipment, including large-scale LNG carriers, ultra-large container ships, dual-fuel VLCCs, deepwater and offshore oil & gas platforms, offshore wind turbine installation vessels, and polar scientific research vessels. Its operations extend into specialized equipment support services for the chemical industry, such as installation of LNG cargo containment systems, manufacturing of low-temperature pressure vessels, modular segment precision control process (MPAC), and application of high-strength crack-arrest steel welding—supporting domestication and safe operation of critical equipment in coal chemical processing, petrochemical storage and transportation, and LNG receiving terminals. DSIC holds a National-level Enterprise Technology Center, the National Key Laboratory of Advanced Manufacturing for Ships and Ocean Engineering, and six provincial-level engineering technology research centers. It owns over 1,200 valid invention patents and has led or participated in formulating 187 national standards, industrial standards, and military standards—including key specifications directly related to chemical energy storage and transportation, such as Technical Requirements for Installation of Cargo Containment Systems on Large LNG Carriers. DSIC possesses full-category classification society certifications from China Classification Society (CCS), DNV, LR, and ABS; has passed ISO 9001/14001/45001 and GJB 9001C system certifications; and holds an A-class pressure vessel design and manufacturing license, a Civil Nuclear Safety Equipment Manufacturing License (for primary nuclear island support structures), and a License for Scientific Research and Production of Weapons and Equipment. Completed projects include the “Pan Asia” series of 174,000 m³ Mark III LNG carriers, the world’s first dual-fuel VLCC “Yuan Rui Yang,” and the 2,000-meter-class deepwater semi-submersible drilling platform “Dalian Pioneer.” LNG carrier orders cover QatarEnergy, while ultra-large container ships serve Mediterranean Shipping Company (MSC). DSIC’s service scope spans more than 20 countries, including Singapore, Greece, Norway, Brazil, and the United Arab Emirates; export vessel orders accounted for 61.3% of total orders in 2025. DSIC offers multiple cooperation models, including technology licensing plus engineering implementation, consortium-based EPC, complete equipment supply, and intelligent operation & maintenance systems (e.g., the “DSIC Smart Navigation” energy efficiency management platform).

Dalian Changsheng Real Estate Development Co., Ltd. is registered in Xigang District, Dalian City, Liaoning Province. It is a regional, medium- to small-scale private real estate development enterprise whose core business focuses on the development, construction, sales, and property management of residential and commercial properties, and it is currently operating stably. Its target customers are primarily local first-time homebuyers and upgraders in Dalian’s main urban area and Jinhua New Area. Its project portfolio encompasses diverse product types, including mid-rise residential buildings, Western-style residential buildings, and community-level commercial facilities. The company’s core competencies lie in end-to-end development management and compliant project delivery. It holds Grade II qualification for real estate development enterprises (Registration No.: Liao Jian Fang Kai Bei Zi [2004] No. 037), satisfying all statutory requirements stipulated in the “Regulations on Qualification Management of Real Estate Development Enterprises” regarding registered capital, professional technical personnel, total completed construction area, and quality compliance rate. Additionally, the company has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q31234R1M; valid until September 20, 2025). Representative projects include “Changsheng · Xinghai International” (completed in 2007, gross floor area approximately 120,000 square meters), “Changsheng · Yuyuan” (delivered in 2013, comprising residential units and community-level commercial facilities), and “Changsheng · Yuefu” (obtained pre-sale permit in 2021, plot ratio 2.2). All projects have successfully passed planning acceptance and completion acceptance registration, with no publicly recorded administrative penalties.

Dalian Chankong Juneng Industrial Park Investment & Development Co., Ltd. is located in the Jinpu New Area (Pilot Free Trade Zone) of Dalian City, Liaoning Province. It is a municipal-level key industrial investment platform established by the Dalian Municipal Government to promote the development of new-energy and high-end equipment manufacturing industry clusters. The company is wholly owned by Dalian Municipal State-owned Capital Operation Co., Ltd., was founded in August 2023, has registered capital of RMB 10 million, and is currently in a phase where large-scale construction and the launch of its first batch of projects proceed concurrently. Its core business focuses on strategic emerging industries including new-energy equipment, hydrogen storage and transportation, smart grids, and marine energy equipment, serving typical application scenarios such as coal chemical coupling with green hydrogen production, substitution of green electricity for conventional power in petrochemical parks, zero-carbon energy supply for fine chemical enterprises, and integrated energy system solutions for new-material pilot-production bases. Its core capabilities cover full-lifecycle development of industrial parks, including EPC project delivery for hydrogen and integrated energy infrastructure (e.g., the EPC project for supporting infrastructure of the Liquid Sunshine Hydrogen Demonstration Base, with a contract value of RMB 820 million), microgrid dispatching and green-electricity trading interface development, infrastructure support for solid- and liquid-state hydrogen storage facilities, infrastructure construction and operational coordination for megawatt-class PEM water electrolysis hydrogen production pilot platforms, and zero-carbon smart park integrated energy services covering cooling/heating supply, energy storage peak-shaving, and photovoltaic-storage-charging integration. The company has obtained ISO 9001, ISO 14001, and ISO 45001 system certifications; holds Grade III General Contracting Qualification for Building Engineering Construction and Class-B Credit Certificate for Energy-related Engineering Consulting Firms; led the formulation of China’s first municipal-level “Technical Guideline for Infrastructure Construction of Hydrogen Energy Industrial Parks” (T/DLQY 001–2025); and participated in drafting the National Energy Administration standard “Technical Specification for Grid Connection of Offshore Wind Power Hydrogen Production Systems” (NB/T 11234–2025). As of the end of February 2026, the company had completed fixed-asset investments exceeding RMB 2.3 billion, signed agreements with 17 enterprises to enter the park—including 12 high-tech enterprises and 5 specialized, sophisticated, distinctive, and innovative (“Zhuan Jing Te Xin”) enterprises. Representative projects include the Jinshitan Zero-Carbon Smart Park Integrated Energy Service Project (scheduled for operation in 2025) and the infrastructure support project for the PEM hydrogen production pilot platform jointly established with the Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Internationally, leveraging the policy advantages of the Liaoning Pilot Free Trade Zone, the company has collaborated with Germany’s Linde Group, Norway’s Nel ASA, and Japan’s Iwatani Corporation on localized testing of hydrogen storage and transportation equipment, mutual recognition of hydrogen refueling station standards, and joint laboratory establishment. In 2025, it facilitated the implementation of three China-Europe technology transfer agreements, supporting a cooperation model combining technology licensing with engineering implementation, serving regions across Northeast Asia and “Belt and Road” green energy cooperation nodes.

Dalian BingShan Group Engineering Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a high-tech enterprise affiliated with Dalian BingShan Group Co., Ltd. The company specializes in refrigeration and air-conditioning systems, industrial energy conservation, environmental control, and energy system integration. It operates within the niche segment of “specialized equipment manufacturing for energy conservation and environmental protection” in the equipment manufacturing industry and is currently in a mature stage of development. With a registered capital of 120 million yuan, the company has achieved an average annual contract value exceeding 1.8 billion yuan over the past three years. The company’s core business covers EPC general contracting for industrial refrigeration systems, full-lifecycle services for cold-chain logistics facilities, construction of low-temperature environment laboratories, and solutions for waste heat recovery and integrated energy management. It primarily serves industries with stringent requirements for temperature control accuracy and energy efficiency, such as food processing, biopharmaceuticals, chemicals, and logistics. In the chemical industry, the company has provided a zero-carbon combined cooling and heating system for the Xinjiang Bosiran Intelligent Agricultural Machinery Industrial Park, supporting process cooling and cascaded utilization of waste heat. The company holds 27 valid invention patents, 136 utility model patents, and 19 software copyrights. Relying on its national-level enterprise technology center and the Liaoning Provincial Industrial Energy Conservation Engineering Technology Research Center, it has established a comprehensive testing platform covering all operating conditions from -70°C to +80°C, as well as a joint BIM+CFD simulation laboratory. The company possesses end-to-end capabilities—from developing low-temperature refrigeration process packages and designing intelligent cold-storage systems, to manufacturing complete sets of environmentally friendly refrigerants such as CO₂, NH₃, and R290, and providing remote operation and maintenance services. The company holds special equipment manufacturing licenses (pressure piping GC1/GB1/GB2 levels, stationary pressure vessels A1/A2/D1/D2 levels), Grade-I professional contracting qualifications for building mechanical and electrical installation engineering, and Grade-I professional contracting qualifications for electronic and intelligent engineering. It has also obtained ISO 9001/14001/45001 triple-system certification and is a member of the Refrigeration Equipment Subtechnical Committee of the National Boiler and Pressure Vessel Standardization Technical Committee, participating in the revision of six national and industry standards, including GB/T 25127.1–2022. Representative projects include the Dongguan 10,000-ton automated stereoscopic cold storage facility of COFCO Group (a fully automated AS/RS cold storage facility operating stably at -25°C throughout the entire warehouse) and the Huairou Low-Temperature Engineering Experimental Platform of the Institute of Physics and Chemistry, Chinese Academy of Sciences, which serve 31 provinces, autonomous regions, and municipalities across China. The company is qualified to undertake overseas engineering contracts and has already provided system design and core equipment for the Vinamilk dairy cold-chain project in Vietnam and the Almaty agricultural product distribution center in Kazakhstan. Its technical services extend to Southeast Asia, Central Asia, and Africa, supporting diverse cooperation models such as technology licensing, project implementation, and consortium partnerships.