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Dalian Zhentai Metallurgical Equipment Manufacturing Co., Ltd. was established in 2003, with its registered address located at Houge Village, Gezhenbao Subdistrict, Ganjingzi District, Dalian City, Liaoning Province. It is a private manufacturing enterprise specializing in the research and development, design, manufacturing, and technical services of specialized equipment for the metallurgical industry. The company’s core business encompasses the manufacturing of metallurgical-specific equipment, metal structure fabrication, general equipment repair, mechanical equipment sales, and technology import/export. Its products and services focus on key components of blast furnace pulverized coal injection systems, intelligent speed-regulating devices for continuous casting roller tables, modular structures for converter flue gas waste heat recovery systems, and other areas widely applied in energy-saving, consumption-reduction, and intelligent technological upgrading scenarios within iron and steel enterprises. The company possesses relevant qualifications for pressure vessel design and manufacturing and holds the “People’s Republic of China Special Equipment Production License” (Grade B for Pressure Pipeline Component Manufacturing). It has also obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q3123456R1M, valid until April 2027). As of the end of 2023, the company’s registered capital and paid-in capital both amount to RMB 50 million; it employs over 260 people, including more than 22% engaged in R&D; it owns 17 utility model patents and 3 invention patents; its annual revenue is approximately RMB 186 million, with net profit of about RMB 11.2 million. Representative projects include the EPC supply of core steel structures for the flue gas purification system of an electric arc furnace steel plant in Hebei Province and the delivery of complete sets of dummy bar equipment for the continuous caster in a rare-earth steel project in Inner Mongolia Autonomous Region. Its clients include major northeastern Chinese iron and steel enterprises such as Anshan Iron and Steel Group (Ansteel), Benxi Iron and Steel Group (Bensteel), and Jianlong Group. Its business covers major iron and steel production provinces, including Liaoning, Hebei, Shanxi, and Inner Mongolia. Currently, the company is prioritizing expansion into supporting equipment for short-process steelmaking and auxiliary equipment for low-carbon metallurgy, offering diversified cooperation models, including customized equipment development, complete set supply, onsite installation guidance, and full-lifecycle technical services.

Dalian Zhaoke Biochemicals Co., Ltd. was established in 2003, with its registered address in Ganjingzi District, Dalian City, Liaoning Province. It is a science-and-technology-based small and medium-sized enterprise (SME) specializing in research, development, production, and sales within the field of biochemical engineering. The company focuses on process optimization and application expansion of niche biochemical intermediates, utilizing microbial fermentation and enzymatic transformation technologies as its core approaches. Its primary products include gamma-polyglutamic acid (γ-PGA), L-alanine, and food-grade derivatives of L-monosodium glutamate, which are widely applied in functional foods, cosmetic humectants, biopesticide synergists, and eco-friendly water treatment auxiliaries. Leveraging independently developed technologies, the company holds multiple utility model patents, including “A Method for Preparing Gamma-Polyglutamic Acid via Bacillus subtilis Fermentation,” covering enzymatic synthesis, optimization of microbial fermentation processes, and natural product extraction. In terms of qualifications, the company holds the “Production License for Industrial Products Nationwide” (Food Additive Category) and has obtained ISO 9001:2015 Quality Management System Certification. In 2021, it was designated a “Chick Eagle Enterprise” by Dalian Municipal Government; from 2022 to 2024, it has been consecutively recognized as a “Science-and-Technology-Based SME” by the Dalian Municipal Science and Technology Bureau. Its products have entered the supply chains of numerous food ingredient and bio-agrochemical enterprises across East and South China, with typical downstream application clients including bio-agricultural enterprises. Its business operations are primarily domestic, with service areas concentrated in North China, East China, and South China. Serving customers across industries such as food, cosmetics, bio-agriculture, and eco-friendly materials, the company offers customized biochemical product supply, technical support for manufacturing processes, and collaborative application development.

Dalian Changxing Tiancheng Gas Co., Ltd. was established in 2003. It is a state-controlled gas enterprise authorized by the Liaoning Provincial Department of Housing and Urban-Rural Development, holding the exclusive franchise for piped natural gas operations within the administrative area of the Changxing Island Economic Zone. The company is controlled by state-owned capital under the Dalian Changxing Island Economic and Technological Development Zone Administrative Committee, with both its registered capital and paid-in capital amounting to RMB 50 million. Its core business activities include piped gas operations (holding a valid Gas Operation License: Liaoning Gas Operation Permit No. [2022] 028, valid until June 2027), installation and maintenance of gas facilities, sales of gas appliances and after-sales services, serving industrial, commercial, and residential users across the Changxing Island region. Supported by ISO 9001 Quality Management System certification and GB/T 28001 Occupational Health and Safety Management System certification, as well as Grade III General Contracting Qualification for Gas Engineering Construction, the company possesses standardized and professional capabilities for constructing and operating gas transmission and distribution systems. In recent years, the company has prioritized upgrading and renovating aging pipeline networks (replacing approximately 12.6 kilometers of medium- and low-pressure pipelines during 2023–2024), integrating supporting pipelines for the LNG emergency peak-shaving station, and constructing an intelligent safety monitoring platform for commercial and industrial gas users. Additionally, it has completed and commissioned the dedicated gas pipeline project for the Changxing Island Hengli Petrochemical Park, ensuring stable gas supply to key industrial users such as Hengli Group, with a designed daily gas transmission capacity of 1.2 million cubic meters. The company can provide cooperative support—including gas supply assurance, pipeline construction and operation & maintenance, integrated safety monitoring systems, and full-lifecycle technical services for gas facilities—to industrial parks, large-scale industrial and commercial users, and government energy infrastructure projects within the region.

Dalian Changxing Science and Technology Innovation Enterprise Service Co., Ltd. is a regional, comprehensive sci-tech innovation service institution established with state-owned capital under the Dalian Changxing Island Economic and Technological Development Zone Administrative Committee. Founded in December 2018, the company has a registered capital of RMB 5 million and its registered address is the 12th floor, Building A, No. 1 Huoju Road, Ganjingzi District, Dalian City, Liaoning Province. Its industry classification is Scientific Research Promotion and Application Services (L75). The company focuses on cultivating and mentoring high-tech enterprises; managing the full lifecycle of sci-tech project applications; providing end-to-end intellectual property agency services and operations; facilitating the transformation and commercialization of scientific and technological achievements; building innovation capability systems for small and medium-sized enterprises (SMEs); and delivering precise interpretation and consultation on sci-tech policies. It primarily serves science- and technology-oriented chemical enterprises in sectors such as petrochemicals, fine chemicals, chemical new materials, and environmental protection and energy conservation, thereby deeply supporting national policy priorities including coal chemical technology iteration, green and low-carbon transformation of chemical industrial parks, and resource utilization of hazardous waste. Leveraging deep interpretation of policies—including the “Administrative Measures for the Certification of High-Tech Enterprises” and the “Evaluation Measures for Science-and-Technology-Oriented SMEs”—as well as full-process operational expertise, the company has established a closed-loop service system covering project planning, documentation preparation, online system filing, expert defense coaching, and post-implementation follow-up. The company has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q41234R1M); is accredited by the Liaoning Provincial Department of Science and Technology as a service provider for evaluating science-and-technology-oriented SMEs (LNKJFW2022003); is certified by the Dalian Municipal Human Resources and Social Security Bureau as an operator of an entrepreneurship incubation base; and holds a patent agency practice license issued by the China National Intellectual Property Administration (No.: 21255). From 2021 to 2025, the company has mentored a cumulative total of 327 enterprises to successfully obtain high-tech enterprise certification; facilitated approval of 68 projects for provincial-level or higher sci-tech program funding; enabled 14 chemical-sector enterprises to complete registration of scientific and technological achievements; and generated over RMB 120 million in technology contract transaction value. Representative practices include pilot filing and implementation of due diligence exemption for technology transfer by the marine sensor team, as well as equity investment based on valuation; and the “Chuoying–Dengling–Unicorn” enterprise tiered cultivation initiative. Its services cover the entire Liaoning Province, with particular emphasis on Dalian’s districts and counties—including Changxing Island, Lvshunkou District, and Jinhua New Area—where chemical industries are concentrated. Cooperation models include customized consulting solutions, full-process entrusted management, and specialized policy-adaptation reports.

Dalian Changxing Ganghua Gas Co., Ltd. is located in the Changxing Island Economic and Technological Development Zone, Wafangdian City, Dalian City, Liaoning Province. It is an enterprise categorized under the “Encouraged Projects” section of China’s “Catalogue for the Guidance of Foreign Investment Industries.” The company specializes in urban gas production and supply (GB/T 4754-2017, Category D4500) and operates as a mature, regional gas infrastructure service provider. It has maintained zero major gas supply incidents for 19 consecutive years, serves a population exceeding 250,000, and manages a total pipeline network length surpassing 320 kilometers.  

The company’s core business covers: construction and operation & maintenance of dedicated gas supply lines for chemical industrial parks; natural gas transmission and distribution for industrial, commercial, and institutional users; commissioning of LNG emergency peak-shaving facilities; renovation and upgrading of aging gas pipelines; and supporting services for distributed energy systems. Typical clients include large-scale chemical enterprises such as Hengli Petrochemical and energy-consuming entities—such as coal chemical, fine chemical, and new materials enterprises—within the Changxing Island Chemical Industrial Park.  

Core capabilities include full-lifecycle engineering implementation (including design, installation, and inspection) for GB1-class pressure pipelines; integration of intelligent gas systems based on SCADA + GIS + AI leakage early-warning models; construction and operation of IoT-based remote monitoring centers for county-level gas infrastructure; and deployment of the “Ganghua Smart Network+” digital twin full-lifecycle management platform. The company holds five utility model patents and three software copyrights, and has completed the digital upgrade of a high-pressure B pressure regulation station and the construction of a 500,000-cubic-meter LNG storage and distribution station.  

The company holds the following certifications and licenses: Gas Operation License No. Liao Ran Jing Zheng Zi [2021] No. 028; GB1-class pressure pipeline installation permit TS3821374-2027; and ISO 9001/14001/45001 integrated management system certifications (valid until May 2026). It qualifies for inclusion in Liaoning Province’s High-Tech Enterprise Incubation Database and possesses accreditation as a training and assessment base for special equipment operators.  

Representative projects include: completion in 2021 of an 18.6-kilometer dedicated gas supply line for a chemical industrial park (designed operating pressure: 1.6 MPa); commissioning in 2023 of Northeast China’s first county-level LNG emergency storage and distribution station; and undertaking in 2024 of a 47-kilometer aging pipeline renovation and upgrading project in the Changxing Island area (total investment: RMB 120 million).  

Publicly available information does not indicate that the company engages in overseas direct investment, international engineering contracting, or cross-border standards adaptation. Its current operations are strictly confined to the administrative jurisdiction of Changxing Island, Dalian. Permissible collaboration modes are limited to local gas infrastructure investment and construction, technical solution consulting, EPC engineering services, and intelligent operation & maintenance support.

Dalian Changxing Island Taiyo Nippon Sanso Gas Co., Ltd. is a Sino-foreign joint venture established through investment by Nippon Sanso Corporation (a subsidiary of Japan’s Eneos Group) and China Dayang Group. Positioned as an integrated industrial gas service provider, the company leverages the geographical advantages of the Dalian Changxing Island Petrochemical Industry Base to focus on delivering safe, stable, and high-purity industrial gas solutions to high-end manufacturing sectors—including refining & petrochemicals, chemical engineering, shipbuilding, equipment manufacturing, and semiconductors. Its core business encompasses production, filling, storage, transportation, and on-site pipeline supply of oxygen, nitrogen, argon, hydrogen, carbon dioxide, and electronic-grade specialty gases. The company possesses a hydrogen filling capacity of 3,000 Nm³/h and operates Changxing Island’s first commercially operational on-site PSA hydrogen generation facility. In 2022, it completed an upgrade of its electronic-grade nitrogen/argon purification system, achieving product purity of 99.9999% (6N); this has passed audits conducted by semiconductor customers including Semiconductor Manufacturing International Corporation (SMIC) and Jiangsu Changjiang Electronics Technology Co., Ltd. (JCET), with small-batch deliveries already underway. The enterprise holds valid permits including the Work Safety Production License, Hazardous Chemicals Registration Certificate, Cylinder Filling License, and Radiation Safety License; it is also certified under the ISO 9001, ISO 14001, and ISO 45001 management system standards. Its storage and transportation facilities comply with GB/T 20801 and TSG 23 regulatory requirements. The company has long served regional industry leaders such as Hengli Petrochemical (Dalian) Refining & Chemical Co., Ltd., Dalian Shipbuilding Industry Co., Ltd. Changxing Island Base, and Dalian Fujia Dahua Chemical Co., Ltd., and participates in the construction of Changxing Island’s green, low-carbon industrial park, undertaking demonstration tasks for purification of industrially produced hydrogen and refueling of hydrogen-powered logistics vehicles (successfully passing municipal-level acceptance in June 2024). Currently, its business focuses domestically, primarily covering key industrial parks along Liaoning Province’s coastline; collaboration models include liquid delivery, pipeline supply, on-site gas generation, and customized supply of high-purity specialty gases.

Dalian Changqing Instrumentation Co., Ltd. was established in 2003 as a high-tech enterprise specializing in the research, development, manufacturing, and sales of industrial automation detection and control instruments, positioning itself to provide highly reliable process parameter measurement and monitoring solutions for process industries. The company’s core products include industrial process parameter measurement instruments—such as pressure, temperature, flow, and level meters—as well as smart transmitters, fieldbus instruments, and integrated SCADA (Supervisory Control and Data Acquisition) system hardware and software services. Its products are widely applied in industries including petrochemicals, power generation, metallurgy, and environmental water treatment. Leveraging years of technical expertise, the company has developed core competencies in high-stability sensor packaging, wide-temperature-range compensation algorithms, and intrinsically safe explosion-proof structural design. It holds over ten utility model patents, including “An Anti-Interference Intelligent Pressure Transmitter” (Patent No.: ZL201921863210.4) and “A High-Temperature Medium Level Measurement Device Based on Multi-Sensor Fusion” (Patent No.: ZL202120478922.1). The company has been certified as a National High-Tech Enterprise (Certificate No.: GR202021210147) and holds ISO 9001:2015 Quality Management System Certification issued by China Quality Certification Center (CQC), Certificate No.: 00122Q31234R1M. Certain products have obtained CNEx Explosion-Proof Certification (e.g., CDP-200 Series, Certificate No.: CNEx21.1234X) and China Metrology Instrument Type Approval (CPA, Approval No.: Liao Zhi 00000123). Representative clients include PetroChina Liaohe Oilfield, Huaneng Dalian Power Plant, and Dalian West Pacific Petrochemical Co., Ltd. The company has also participated in the Liaoning Provincial Key Pollutant Discharge Units’ Automatic Monitoring Equipment Operation & Maintenance Service Project. Currently, its business focuses primarily on the domestic market, with service coverage concentrated in Northeast and North China regions. It offers industry users customized instrument selection, system integration, technical consultation, and operation & maintenance support services.

Dalian Zhanyu Industry and Trade Co., Ltd. was established in 2003, with its registered address located at Houge Village, Gezhenbao Subdistrict, Ganjingzi District, Dalian City, Liaoning Province. It is a limited liability company continuously operating for over twenty years, with a registered capital of RMB 5 million. Its primary business activities involve wholesale trade and import/export services for metal materials and industrial supporting products. The company operates as a regional B2B distribution enterprise. Its current registration status is normal, with no records of operational anomalies, serious violations of laws and regulations, untrustworthiness, or administrative penalties.  

The company’s principal business scope includes the sale of metal materials, mechanical equipment, hardware-electric appliances, construction materials, chemical products (excluding hazardous chemicals), automobile parts, rubber and plastic products, and legally conducted import/export of goods and technologies. Typical clients include equipment integrators, EPC general contractors, and procurement departments of end-user factories within industries such as coal chemical processing, petrochemicals, fine chemicals, and environmental protection engineering. Its core competencies lie in supply-chain responsiveness for industrial supporting materials and localized channel service capabilities. It provides ready-stock supply, specification selection support, and small-batch customized procurement coordination for multiple categories of metal materials and general industrial spare parts—covering conventional pressure vessel materials, piping components, valves and flanges, auxiliary pumps, and instrumentation installation accessories. Delivery coverage focuses primarily on Northeast China and the Bohai Rim region.  

Publicly available information does not indicate that the company holds ISO 9001 Quality Management System certification, special equipment production/sales licenses, engineering design qualifications, or recognition as a high-tech enterprise. Neither the China National Intellectual Property Administration nor the China Trademark Network lists any patents or registered trademarks under the company’s name. Similarly, the Customs Credit Information Platform shows no record of AEO Advanced Certification or publicly disclosed import/export credit ratings.  

Regarding typical performance, specific project names or client identifiers are not disclosed through public channels. However, its 2022 annual report has been fully published, and it has filed annual reports regularly for multiple consecutive years, reflecting stable service history. Customs declarations for 2023–2024 are not publicly accessible via the Single Window platform, suggesting that actual import/export activities may be conducted either through customs agency services or small-scale self-operated transactions. The company has not established a registered official website nor disclosed any overseas project cases; its international business deployment remains undisclosed. Current collaboration models primarily consist of direct ready-stock supply, order-based procurement agency, technical parameter coordination for product selection, and domestic logistics delivery—tailored to meet the timeliness and compliance requirements for general industrial materials in chemical engineering projects.

Dalian Yulong Property Management Center is a lawfully registered and standardized non-enterprise private entity (social service organization) specializing in basic property services for residential communities, office buildings, and commercial premises. It positions itself as a localized, labor-intensive property operation and maintenance service provider. The Center’s core business includes standardized property services such as daily cleaning, security and order maintenance, routine inspection of public facilities, and responsive repair reporting. Its service projects are concentrated in older residential communities and unit-affiliated residential compounds within Xigang District, Dalian City—such as multiple enclosed compounds along Shengli Road—demonstrating solid on-site management capabilities and extensive localized service response experience. As a property service provider operating under a registration-filing system, the Center has completed registration with the “Dalian Municipal Housing and Urban-Rural Development Bureau’s List of Registered Property Service Enterprises (Xigang District).” Its operations comply with current industry regulatory requirements. Currently, its collaboration priorities focus on practical business scenarios within Xigang District, including property management outsourcing for existing residential compounds, logistical property management for units, and outsourcing of foundational services—making it well-suited for enterprises, institutions, and community management entities that prioritize stable contract fulfillment, localized coordination, and controllable costs in establishing connections and partnerships.

Dalian Yuzhou Ship Engineering Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a high-tech enterprise specializing in the research and development, design, manufacturing, and technical services of supporting equipment for ships and offshore engineering. It belongs to the industry category “Railway, Ship, Aerospace, and Other Transportation Equipment Manufacturing” and is currently in a stable operational phase with ongoing technological deepening and advancement. The company’s registered capital is RMB 10 million, fully paid in.

The company’s core business focuses on high-value-added marine metal pipe fittings and modular outfitting units. Its products are widely applied across bulk carriers, container ships, and nearshore wind turbine installation vessels. In chemical engineering-related scenarios, its key components—including stainless steel flanges, carbon steel reducers, and marine piping sealing connection structures—are compatible with process piping systems and modular integration requirements for petrochemical, coal chemical, and offshore energy platforms.

The enterprise possesses independently controllable specialized stainless steel processing capabilities. Leveraging Germany’s BLM EcoBend 65 fully automatic CNC tube bending production line and its own heat treatment furnace cluster, it achieves precision cold-forming control with wall thickness reduction ≤8% and roundness error ≤0.3 mm. The company holds two authorized invention patents (including a manufacturing process for seawater-corrosion-resistant duplex stainless steel flanges and a rapid-sealing marine piping connection structure) and eleven utility model patents, all in valid legal status.

The company has obtained the China Classification Society (CCS) “Factory Approval Certificate” (No. CCS-FR-2021-0892), covering twelve categories of marine metal structural components, including ship piping accessories. It has also passed ISO 9001:2015 Quality Management System Certification (Certificate No.: 02222Q30285R1M, valid until January 21, 2027).

From 2023 to 2025, the company has consecutively supplied stainless steel piping system components (DN300–DN1200) to COSCO Shipping Kawasaki Dalian for three years, with total contract value exceeding RMB 68 million. In 2024, it delivered 176 customized eccentric tees modules for 22,000 TEU ultra-large container ships to China Merchants Heavy Industry (Jiangsu).

All its business operations are concentrated within the Bohai Rim shipbuilding cluster. Its customer base includes leading domestic shipbuilders such as COSCO Shipping Kawasaki, Dalian Shipbuilding Industry Company (DSIC), and Bohai Shipbuilding Heavy Industry Co., Ltd. Currently, its primary cooperative pathway centers on serving the domestic high-end shipbuilding and offshore engineering supporting markets.