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

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

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

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

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

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

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

Dalian Kesen Environmental Engineering Co., Ltd. was established in 2003, with its registered address located in Ganjingzi District, Dalian City, Liaoning Province. It is a high-tech enterprise specializing in the implementation of industrial environmental protection projects and operation & maintenance (O&M) of environmental facilities. The company’s registered capital is RMB 10 million; it is currently active and operational. Its primary revenue sources at present include comprehensive VOCs (volatile organic compounds) control, flue gas desulfurization and denitrification, industrial exhaust gas treatment, and third-party O&M services for environmental protection facilities. It qualifies as a medium- or small-sized environmental technology service provider capable of delivering engineering projects within its regional market.  

The company’s core business covers typical industrial sectors such as petrochemicals, equipment manufacturing, shipbuilding and repair, and chemical industry parks. It primarily serves fine chemical plants, coal chemical auxiliary workshops, and large-scale energy bases where urgent VOCs emission control and environmental upgrading are required. Its key capabilities encompass the engineering application of hybrid technologies—specifically “zeolite rotor + RTO (Regenerative Thermal Oxidizer)” and “low-temperature plasma + photocatalysis”—specialized contracting for environmental engineering projects (Grade III qualification), full-process EPC (Engineering, Procurement, Construction) project management, and integrated retrofitting and long-term O&M services for complete RTO incineration systems. It delivers full-cycle project execution—from conceptual design, equipment selection, installation and commissioning, to five-year facility托管 (managed services).  

The company holds a Grade III qualification for specialized contracting of environmental engineering projects (Certificate No.: D321111905, valid until December 2026) and a Work Safety Production License (Liao JZ An Xu Zheng Zi [2020] No. 020182). It was certified as a National High-Tech Enterprise in 2018 (Certification No.: GR201821200127); however, as of March 2026, no record of renewal registration appears on the official National High-Tech Enterprise Certification and Management Network.  

Representative projects include:  
- The VOCs control EPC project for the cast steel workshop of Dalian Huarui Heavy Industry Co., Ltd. (2019; contract value approx. RMB 6.8 million);  
- Third-party O&M services for supporting environmental facilities at the Liaoning Hongyanhe Nuclear Power Station (2021–2024); and  
- The centralized RTO incineration system upgrade and retrofit project for a chemical industry park in Yingkou (2022).  

All projects are located in Northeast China, and clients are predominantly heavy industrial manufacturing enterprises.

大连科林能源工程技术开发有限公司位于辽宁省大连市甘井子区，是一家成立于2003年的高新技术企业，专注于能源工程技术研发与系统集成服务，所属行业为“能源工程技术研究与试验发展”（M7320），长期服务于中石油、中海油、国家管网集团等大型能源央企。公司主营业务覆盖油田地面工程、LNG接收站配套系统、工业节能改造、智慧能源管理平台及新能源项目咨询设计，典型应用场景包括陆上油气田低碳化运行、LNG冷能梯级利用、数字化注水站能效提升及压气站余热回收等。公司具备LNG气化冷能复合式换热系统（ZL201910238765.2）、KL-EMS能源监测与仿真平台（V3.2）等自主知识产权，拥有发明专利5项、实用新型专利18项、软件著作权12项，全部处于有效状态；可提供从工艺包开发、动态负荷预测、参数智能寻优到EPC交付的全链条技术服务，已在12个陆上油气田部署KL-EMS平台，平均降低单站综合能耗8.3%。公司持有GB/T 19001/ISO 9001、GB/T 24001/ISO 14001、GB/T 45001职业健康安全管理体系认证，具备压力管道GC1级与GCD级设计许可，并通过中国石油工程建设协会能源工程咨询甲级资信评价。代表性业绩包括中海油辽宁滨海LNG接收站二期冷能利用系统优化项目（2022–2024）、大庆油田采油七厂数字化注水站节能改造EPC项目（2021–2023）、国家管网西三线压气站余热回收可行性研究（2020年），相关信息见《中国石油报》及国家管网官网公示。公司未设立海外分支机构或开展境外直接投资，但通过向中石化国际事业公司提供LNG接收站工艺包技术服务（合同编号：SINOPEC-INTL-2022-EN-087），间接支持中国企业在阿曼、巴西等地的能源基建项目，技术服务内容列入商务部《对外投资合作国别指南》2025年版附录B“国内技术服务商名录”。

Dalian Huayang Architectural Design Co., Ltd., located in Shahekou District, Dalian City, Liaoning Province, is a privately owned limited liability company specializing in architectural engineering design and consulting. Established in 2003, the company has registered capital of RMB 10 million and holds Class-A qualification for architectural engineering design (Certificate No.: A121004538). Its registration status is “Active,” with no record of operational anomalies or judicial risks. The company’s core business focuses on residential buildings, public buildings, educational and medical facilities, and renovation design for existing buildings. Its clients include government-funded public construction projects. In chemical industry-related supporting projects, the company undertakes specialized architectural design tasks such as research and development centers, laboratory buildings, temporary hazardous chemical storage rooms, environmental protection treatment facility buildings, employee shift dormitories, and integrated administrative office complexes. The company employs over 50 professional technical personnel, more than 40% of whom hold professional licenses including First-Class Registered Architects, First-Class Registered Structural Engineers, and Registered Equipment Engineers. It possesses BIM-based forward-design capability. All design deliverables strictly comply with the Regulations on Quality Management of Construction Projects and the Ministry of Housing and Urban-Rural Development’s Provisions on Depth of Preparation of Architectural Engineering Design Documents (2023 Edition), and are filed with the Liaoning Provincial Construction Drawing Review Center. In 2022, the company obtained ISO 9001 Quality Management System Certification (Certificate No.: 00122Q31235R1M), covering the entire process of architectural engineering design services. In recent years, it has completed over ten government-funded projects, including the expansion and renovation project of Dalian No. 36 Middle School, the Xin’gang Subdistrict Community Service Center in Lüshunkou District, and the resettlement housing project in San Shili Pu Subdistrict, Jinpu New Area; several of these projects have received awards from the Liaoning Provincial Excellent Engineering Survey and Design Awards. Regarding green building technology application, over 85% of delivered projects meet or exceed the national Green Building Evaluation Standard Level One; the company also possesses experience in integrated design of passive energy-saving construction and renewable energy systems. Collaboration is limited to architectural conceptual design, preliminary design, construction drawing design, and on-site technical services; it does not involve provision of process packages, equipment package supply, or overseas project delivery.

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 Port Design and Research Institute Co., Ltd. (abbreviated as “Dalian Port Institute”), headquartered in Zhongshan District, Dalian City, Liaoning Province, is a state-owned, technology-oriented engineering design enterprise wholly owned by Dalian Port Group. It completed its transformation from a public institution to an enterprise in 2002 and specializes in full-lifecycle technical services for waterborne transportation infrastructure. Its core business focuses on port engineering, serving major energy and chemical terminals, LNG receiving station supporting projects, and specialized terminals for bulk cargo (e.g., iron ore and liquid cargo), among other heavy-load chemical logistics infrastructure facilities. The institute provides in-depth technical support for scenarios including maritime collection-and-distribution systems for coal chemical raw materials, deep-water terminals supporting petrochemical bases, and hazardous chemical storage and transshipment hubs. Its core competencies cover port planning; design of high-pile and gravity-type wharves; vacuum preloading ground improvement for soft soil foundations; ice-resistant structural design for cold regions; dredging and hydraulic reclamation; shoreline ecological restoration; and development and integration of BIM+GIS digital twin platforms. Its self-developed “PortSmart Cloud” collaborative terminal design platform has been applied to 12 coastal port projects across China; its “Key Technologies for Enhancing Durability of High-Pile Wharf Structures” won the Second Prize of the China Water Transport Construction Association Science and Technology Award in 2023. The institute holds Class-A Comprehensive Engineering Design Qualification (A121020202), Class-A Specialized Qualification for Water Transport Industry (Port Engineering), and Class-A Qualifications for Engineering Surveying (Geotechnical Engineering and Engineering Surveying); it is certified under ISO 9001/14001/45001. Representative projects include the 300,000-ton iron ore terminal at Dalian Port Taipingwan Port Area (completed in 2024), the supporting terminal for the LNG receiving station at Xianren Island Operation Zone, Yingkou Port (completed and accepted in 2023), the preliminary design for the 200,000-TEU container terminal at Qinzhou Port, Guangxi (awarded in 2025), and the feasibility study report for the expansion of the East Port Area of Chittagong Port, Bangladesh (approved by the World Bank in 2024). Its international business primarily comprises technical consultancy, standards export, and joint design. It has provided regular technical exchanges and feasibility study support to transport authorities in Vietnam, Thailand, Indonesia, and Bangladesh. Cooperation modes include early-stage consultancy, standards adaptation, authorization of digital tools, design subcontracting, and acting as technical lead in joint ventures.

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.