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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.

Dalian Tongchuang Gas Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a high-tech enterprise specializing in the production, filling, sales, and application technical services of industrial gases. It operates within the specialty gas subsector of the chemical raw materials and chemical products manufacturing industry. Established in 2003, the company has maintained stable operations continuously since inception. Its registered capital amounts to RMB 10 million. The company’s registration status is “in operation,” with no record of operational anomalies or administrative penalties.  

The company’s primary business involves bottled supply of conventional industrial gases, including oxygen, nitrogen, argon, carbon dioxide, acetylene, hydrogen, and liquefied petroleum gas (LPG). It also provides bottling and customized services for high-purity electronic specialty gases (e.g., high-purity nitrogen, high-purity argon). Typical application scenarios span local manufacturing industry chain segments, such as equipment manufacturing, shipbuilding and repair, automotive welding, food preservation, medical health, and semiconductor supporting industries.  

Its core capabilities focus on full-process safety management of hazardous chemicals, online gas purity monitoring, standardized cylinder filling and periodic inspection (in accordance with TSG 23-2021), possession of an in-house cylinder inspection and testing laboratory, and capability for optimizing stable gas supply processes. These enable rapid response and bulk bottled delivery to small- and medium-sized manufacturing enterprises across Northeast China.  

The company holds the following certifications and licenses:  
- “Safety Production License for Hazardous Chemicals” (Liaoning WH Safety Permit No. [2022] 02-0037);  
- “Cylinder Filling License” ((Liaoning) TS4221025-2026);  
- ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q3123456R1M);  
- National High-Tech Enterprise Certification (GR202121000286), awarded in 2021 with a validity period of three years.  

Representative performance includes providing long-term gas supply services to key local enterprises such as Dalian Huarui Heavy Industry Co., Ltd. and CSSC Dalian Shipbuilding Industry Co., Ltd., and participating in the construction of gas supply security nodes within the Dalian Bay Linhai Equipment Manufacturing Industry Agglomeration Zone. Project deliveries are predominantly regional bottled-gas supply arrangements; specific contract values and facility scales have not been disclosed.  

Publicly available information indicates no involvement in overseas projects, export performance, overseas registered entities, or technological cooperation with international gas industry leaders such as Linde or Air Products. Its service scope is confined to Liaoning Province. Current collaboration models comprise targeted gas supply, customized bottling, and on-site technical support—excluding EPC general contracting, process package licensing, or cross-border engineering delivery.

Dalian Tianxin Synthetic Fiber Technology Development Co., Ltd. is a high-tech enterprise specializing in the research, development, and application promotion of synthetic fibers and related new materials. Its industry classification is chemical fiber manufacturing (C2821). The company’s core business covers process optimization and customized development of functional polyester, modified polyester, and differentiated fibers. Based on the Dalian High-Tech Industrial Development Zone, the company has long served regional technical support and intermediate material supply needs within the synthetic fiber industrial chain, possessing capabilities to conduct fiber material adaptability R&D and technology transfer tailored to differentiated application scenarios. Leveraging continuously accumulated process expertise, the company has established stable technical pathways in structural design, performance modulation, and industrialization integration of functional fibers, enabling it to provide targeted material solutions for downstream sectors such as textiles, industrial fabrics, and composite materials. The company remains operational with a sound credit record—no administrative penalties, serious violations of law or untrustworthiness, or equity pledge information have been identified. Although no national or industry standards led by the company, authorized patents, or certification as a high-tech enterprise have been found, nor are there publicly disclosed large-scale production bases or representative cross-regional projects, the company demonstrates pragmatic collaborative foundations in localized technical responsiveness, rapid process iteration, and small-batch customization services. Potential collaboration focuses on practical scenarios including joint development of functional fibers, pilot-scale verification of modified polyester materials, application testing of differentiated fibers, and coordinated upgrading of regional industrial chains—suitable for industrial partners prioritizing technical adaptability, delivery flexibility, and localized support.

Dalian Taipingwan Ganghua Gas Co., Ltd. is a joint venture established by China Gas Smart Energy Co., Ltd. (1083.HK) and the Dalian Taipingwan Cooperative Innovation Zone Management Committee. The company is positioned as a regional urban gas franchised operator and integrated energy service provider, focusing on serving the Dalian Taipingwan Cooperative Innovation Zone and its surrounding areas. Its core businesses include pipeline natural gas transmission and distribution, end-user supply, installation and maintenance of gas facilities, development of distributed energy projects, and promotion services for new energy technologies, with emphasis on low-carbon energy infrastructure construction integrating gas, electricity, heat, and hydrogen (“gas–electricity–heat–hydrogen”) in a synergistic multi-energy system. Leveraging China Gas Energy’s over 30 years of urban gas operation experience and standardized management system, the company has completed and commissioned the first High-Pressure B (HP-B) pressure regulation station in the Taipingwan Port Area, along with Phase I of the associated medium-pressure pipeline network (gas supply commenced in October 2023), achieving full coverage of piped natural gas for key industrial parks, port operation zones, and resettlement communities. Currently, the company is advancing Phase II pipeline expansion and the construction of an LNG emergency peak-shaving and storage-distribution station (Project Filing No.: Liao Tai Fa Gai Bei [2024] No. 32), scheduled to commence operations in 2025. The company holds the “Gas Operation License” (License No.: Liao Ran Jing Zheng Zi [2023] No. 027) issued by the Liaoning Provincial Department of Housing and Urban-Rural Development, covering the entire Dalian Taipingwan Cooperative Innovation Zone. It has also obtained certification for the three major management systems—ISO 9001, ISO 14001, and ISO 45001 (Certificate No.: Q503230046R0M, valid until August 2026). Technologically, the company fully integrates into China Gas Energy’s unified platform, including intelligent inspection systems, SCADA remote monitoring platforms, and the “China Gas Smart Network” digital operation & maintenance system. For government platforms, industrial parks, port operating entities, and energy investors, the company offers cooperative opportunities in areas such as gas infrastructure investment and construction, multi-energy complementary integrated energy solutions, digitalized operation & maintenance outsourcing, and LNG emergency supply assurance.

Dalian Smiler Electromechanical Equipment Co., Ltd. is located at Room 204, Government Cultural Comprehensive Building, No. 189, Shannantou Village, Heidao Town, Zhuanghe City, Liaoning Province. The company operates in the specialized equipment manufacturing sector—specifically, industrial automatic control system apparatus manufacturing (C3425)—and focuses on industrial automation control system integration and the R&D and manufacturing of intelligent electromechanical equipment. It is currently in a stage of scaled application and deepened regional market development. Its core business covers heavy industrial sectors including coal chemical industry, metallurgy, port logistics, and power energy, providing customized mechatronic solutions for bulk cargo terminal belt conveyor systems, mine belt transport lines, and power plant coal-handling systems. Its core competencies center on real-time closed-loop control algorithm development and engineering implementation under multi-variable coupled operating conditions; it possesses independent capabilities in design, complete set manufacturing, and technical service delivery for electro-hydraulic servo control systems, intelligent tension control equipment, and interference-resistant industrial fieldbus communication modules. Representative products include the SMC-series multi-axis synchronized tension controllers, SME-type high-response electro-hydraulic proportional valve groups, and adaptive deviation-correction systems for quay cranes’ trolleys. These products support the OPC UA protocol and are compatible with mainstream MES/SCADA platforms; their underlying hardware employs domestically developed Phytium processors and the Kylin operating system. The company holds ISO 9001:2015 and ISO 14001:2015 certifications, possesses the “Special Equipment Production License” (for installation, repair, and modification of lifting machinery), and has received factory approval from China Classification Society (CCS); some products have obtained CE certification (EN 61800-5-1:2017). It owns three invention patents, twelve utility model patents, and eight software copyrights. Representative projects include: delivering an intelligent belt conveyor tension regulation system to Anshan Iron and Steel Group’s Qidashan Iron Mine (covering eight main transport lines, reducing belt breakage incidents by 92%); completing the intelligent transformation of the coal-handling system at Huaneng Yingkou Power Plant (achieving 18.7% energy savings per system and receiving special support from Liaoning Province’s intelligent manufacturing program); and delivering the Phase II container terminal at Dalian Port. Internationally, the company conducts business primarily via equipment exports: in 2023, it supplied one customized electrical control system each to Hongji Port in Vietnam and Talahan Power Plant in Indonesia; international revenue accounts for approximately 6.3% of total revenue, and the company supports collaboration models combining technology licensing with engineering implementation.

Dalian Shengrui Technology Development Co., Ltd. is located in the Dalian High-Tech Industrial Development Zone, Liaoning Province. Established in 2003, it is a technology service enterprise specializing in industrial automation control system integration and intelligent equipment R&D. The company’s registered capital and paid-in capital are both RMB 10 million. Its registration status is “Active.” It holds the qualification of a National High-Tech Enterprise and ISO 9001:2015 Quality Management System Certification (Certificate No.: 00121Q31238R1M). It also holds a “Construction Enterprise Qualification Certificate” (Grade III General Contracting Qualification for Mechanical & Electrical Engineering Construction) and a “Work Safety Production License,” and has completed registration on the National Construction Market Supervision Public Service Platform.  

The company’s core business focuses on heavy industries such as metallurgy, electric power, and port machinery, providing deep technical support to process industry clients—including coal chemical, petrochemical, and environmental protection sectors—for automation upgrades. It delivers full-lifecycle technical services, including PLC programming and commissioning, DCS/SCADA system integration, industrial data acquisition, and remote monitoring platform development.  

Its core technologies cover in-depth industrial protocol analysis (supporting Modbus, Profibus, CANopen, and OPC UA), co-design of embedded edge controller hardware and software, and anti-interference signal acquisition architecture suitable for high-dust, strong electromagnetic interference environments. The company owns two invention patents, seven utility model patents, and fourteen software copyrights. It led the formulation of the “SR-SCADA System Engineering Implementation Specification” (Q/DLSR 001–2021), which has been filed with the Liaoning Provincial Market Supervision Administration. All projects strictly comply with national standards including GB 50171–2012 and GB/T 28827.3–2012, and have passed the German TÜV Rheinland SIL2-level functional safety assessment.  

Representative projects include:  
- In 2021, completion of the domestic substitution and retrofitting project for the PLC control system of ship unloaders at Phase III of Dalian Port Ore Terminal (contract value: RMB 8.6 million), achieving 100% independent controllability of critical control units;  
- In 2022, delivery of the DCS system upgrade project for the coke dry-quenching facility at Benxi Iron and Steel Group Corporation, covering 12 independent control stations; the system has operated continuously without failure for over 21,000 hours;  
- In 2023, undertaking the EPC project for the automated monitoring system of the bulk cargo terminal supporting the Padma Bridge in Bangladesh, awarded to China Communications Construction First Harbor Consultants Co., Ltd.; the system entered commercial operation in June 2024.  

Currently, its service network covers 12 provinces, including Liaoning, Hebei, Shandong, and Jiangsu. Its client base includes major state-owned enterprises such as China Baowu Steel Group, Anshan Iron and Steel Group, China Merchants Ports Holdings, and China Communications Construction Company. Leveraging a “technology + service” model, the company has expanded into South Asia and Southeast Asia—including Bangladesh and Vietnam—establishing localized technical support liaison points. However, it has not yet established overseas legal entities or obtained international product certifications such as EU CE or U.S. UL. Publicly available information does not indicate involvement in specialized chemical process packages, special equipment manufacturing licenses, or nationally funded scientific research projects.

Dalian Jinzhou District Sanmu Gas Co.,Ltd. was established in 2002, with its registered address at No. 61, Bali Village, Yongzheng Street, Jinzhou District, Dalian City, Liaoning Province. It is a regional gas supplier specializing in the production, filling, storage, sale, and provision of supporting technical services for industrial gases. The company primarily supplies compressed and liquefied gases—including oxygen, nitrogen, argon, carbon dioxide, acetylene, hydrogen, and liquefied petroleum gas (LPG)—serving multiple sectors such as mechanical processing, shipbuilding, pressure vessel welding, food preservation, and medical support. It provides manufacturing enterprises with stable and reliable industrial gas solutions, including customized gas supply and on-site gas generation support. The company possesses solid qualification credentials: it holds the “Production Safety Permit for Hazardous Chemicals” issued by the Liaoning Provincial Department of Emergency Management (No.: Liao Wei Hua An Xu Zi [2023] 02-0086) and the “Special Equipment Production Permit” (for cylinder filling) issued by the Liaoning Provincial Market Supervision Administration (No.: TS4221971-2027); both permits are valid until 2027. Additionally, the company has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q3123456R3M, valid until November 2025). Typical service clients include major local equipment manufacturing enterprises such as Dalian Huarui Heavy Industry Co., Ltd. and COSCO Kawasaki Ship Engineering Co., Ltd. All verifiable projects and services offered by the company are concentrated within Liaoning Province, particularly in Dalian City and the southern Liaoning region. The company is committed to becoming a compliant backbone entity within the local industrial gas security system, offering manufacturing enterprises diversified cooperation models—including gas products, equipment sales, and application technical consulting services.

Dalian Sandeli Gas Industry Co.,Ltd. was established in 2001, with its registered address at No. 10-C, Changbang Road, Dalian Economic & Technological Development Zone, Liaoning Province. It is a regional industrial gas specialist supplier headquartered in Dalian and operating legally under valid permits, focusing on midstream gas distribution and on-site gas supply support services. The company’s core business encompasses the production, filling, storage, transportation, and sale of compressed and liquefied gases—including oxygen, nitrogen, argon, carbon dioxide, acetylene, and hydrogen—as well as the sale of gas equipment, technical consulting, and after-sales services. Its primary customers are local manufacturing enterprises, broadly covering sectors such as mechanical processing, shipbuilding components, metal welding, food preservation, and medical auxiliary gas applications. The company holds full-category industrial gas filling qualifications and possesses the “Safety Production Permit for Hazardous Chemicals” issued by the Liaoning Provincial Department of Emergency Management (covering oxygen, nitrogen, argon, carbon dioxide, etc.) and the “Special Equipment Production Permit (Gas Cylinder Filling)” issued by the Liaoning Provincial Market Supervision Administration. It has also obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q3123456R1M, valid until November 2025). According to the “Liaoning Province List of Hazardous Chemicals Producers (2024 Edition)” and the Dalian Municipal Emergency Management Bureau’s Q4 2024 Supervisory Inspection Bulletin, the company maintains continuous compliance in its operations. Currently, its business focuses exclusively on the Dalian region and its surrounding areas; no publicly available information indicates inter-provincial operational sites, export activities, or international project collaborations. The company can provide manufacturing enterprises with standardized gas product supply, on-site gas generation support, cylinder filling services, and complementary technical solutions—suitable for localized, stable, and reliable industrial gas demand fulfillment and long-term gas supply partnerships.