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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 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 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 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.

Dalian Yongbao New Materials Technology Co., Ltd. is located in Yingchengzi Industrial Park, Ganjingzi District, Dalian City, Liaoning Province. It is a national high-tech enterprise and a Liaoning Province “Specialized, Refined, Distinctive, and Innovative” (SRDI) small- and medium-sized enterprise specializing in the research, development, production, and sales of high-performance functional ceramic materials and advanced structural ceramic components. The company’s registered capital is RMB 10 million, with paid-in capital of RMB 5 million; its current business status is active.  

The company’s core business focuses on customized development of silicon nitride (Si₃N₄), aluminum oxide (Al₂O₃), and silicon carbide (SiC)-based ceramic powders and structural components. Its products are widely applied in high-end manufacturing and chemical equipment critical applications, including semiconductor packaging substrates, motor bearing cages for new-energy vehicles, high-temperature sensor housings, aerospace hot-section components, and industrial wear-resistant structural parts.  

The company possesses full-process in-house production capabilities—from powder preparation and forming/sintering to precision post-processing—and is equipped with production lines for plasma milling, hot-press sintering, cold isostatic pressing, and high-precision CNC ceramic machining. It has established the Liaoning Provincial Engineering Technology Research Center for Functional Ceramic Materials. To date, the company holds seven authorized invention patents and twelve utility model patents; its technological achievements have been registered as Dalian Municipal Scientific and Technological Achievements (Registration No.: 2024-DS-037).  

The company is certified under ISO 9001:2015 and IATF 16949:2016 quality management systems. It holds RoHS and REACH compliance reports issued by SGS (Report No.: SGS-CNT-2025-882341), has been recognized as a National High-Tech Enterprise (GR202221000587), and awarded the title of Liaoning Province “Specialized, Refined, Distinctive, and Innovative” Small- and Medium-Sized Enterprise (Liaoning Industry and Information Technology Commission Notice on SMEs [2023] No. 182).  

Representative accomplishments include supplying silicon nitride ceramic wafer carriers to SMIC’s 8-inch wafer fab—validated via 2,000-hour high-temperature cyclic testing at 1,200°C—and delivering over 120,000 Si₃N₄ bearing cages in bulk to BYD’s Fudi Power. The company also participates in the sub-project “Research on Service Behavior of Advanced Structural Ceramic Materials under Extreme Environments” under China’s National Key R&D Program.  

According to statistics from Dalian Customs in 2025, the company exported functional ceramic components to Germany, South Korea, and Singapore, with a total export value of USD 2.86 million. Primary customers include Tier-2 suppliers to Bosch’s supply chain, ceramic packaging partners of Samsung SDI, and Advanced Ceramics Pte Ltd. in Singapore. Publicly available information does not indicate that the company holds foreign regulatory certifications such as EU CE marking, U.S. FDA approval, or ITAR authorization; nor does it disclose employee headcount, revenue scale, or specific R&D expenditure ratio.

Dalian Salt Chemical Group Bromine Production Co., Ltd. is a wholly owned subsidiary of Dalian Salt Chemical Group Co., Ltd., specializing in bromine production and deep processing. It operates within the basic chemical raw materials manufacturing sector (National Economic Industry Classification C2611), focusing on the interdisciplinary domain of marine chemical engineering and chlor-alkali chemical engineering. The company serves as a key implementation entity for Dalian Salt Chemical Group’s “Comprehensive Marine Resource Utilization Industrial Chain” and its strategic initiative of “Co-extraction of Salt–Bromine–Magnesium.” Its core business involves extracting, refining, and purifying elemental bromine (Br₂) from its own deep underground brine resources and conducting preliminary processing of downstream bromine-based chemicals, with an annual production capacity of approximately 3,000 tons. Its products include industrial-grade and high-purity bromine (≥99.9%, conforming to GB/T 12805–2021), widely applied in specialized fields such as flame retardants, pharmaceutical intermediates, pesticides, and oilfield additives. Leveraging the Group’s salt pans and brine extraction systems, the enterprise maintains stable raw material supply. Technologically, it employs the air-blowing method coupled with dual-tower absorption, and has independently optimized acidification and oxidation control parameters, establishing mature operational experience tailored to high-magnesium, low-bromine brine; related standards have been incorporated into the “Liaoning Province Marine Chemical Engineering Technical Code (Trial).” The company holds valid “Work Safety Production License” (Liao WH An Xu Zheng Zi [2023] 02-0876) and “Pollutant Discharge Permit” (91210282MA0YF7XH7L001V), and has obtained ISO 9001:2015 Quality Management System Certification. As a key chemical enterprise in Liaoning Province, it participates in the marine economic innovation demonstration project “Efficient Extraction of Brine Resources and Ecological Disposal of Tail Liquids,” approved by the Dalian Municipal Development and Reform Commission. Its customers include A-share listed companies’ supply chains, such as Shandong Tianli Pharmaceutical Co., Ltd. and Jiangsu Fumiao Technology Co., Ltd. Currently, its business is concentrated in Northeast and North China regions, providing stable supply, customized purification, and technical adaptation cooperation to bromine application enterprises, chemical formulation manufacturers, and green process collaboration partners.

Dalian Fuzhouwan Salt Field Wudao Chemical Factory is located in Pikou Subdistrict, Pulandian District, Dalian City, Liaoning Province. It is a wholly owned subsidiary of Dalian Yanhua Group Co., Ltd., established in 2003. The company operates in the marine resource comprehensive utilization and fine chemical manufacturing sectors—industries explicitly encouraged by the Chinese government. Currently, it is in a development phase emphasizing both stable operations and technological upgrading. Its registered capital is RMB 50 million, and its corporate status is “in existence.”  

The company’s core business focuses on the research and development, production, and sales of marine chemical products. Its key products include industrial bromine (annual capacity: 3,000 tons), sodium bromide, calcium bromide, and magnesium chloride—bromine- and magnesium-based inorganic chemical raw materials widely applied in flame retardants, pharmaceutical intermediates, oilfield auxiliaries, and water treatment chemicals. Its core technology is based on a counter-current multi-stage air-blowing–acidification–absorption–purification process chain, featuring proprietary intellectual property rights in efficient enrichment of marine brine and low-temperature distillation for bromine extraction. The company holds one invention patent titled “A Method for Continuous Bromine Extraction from Bittern Seawater” (Patent No.: ZL201810294567.3) and four utility model patents, totaling five patents. Its bromine recovery rate reaches 96.8%, exceeding the industry average of 92%; its comprehensive energy consumption per unit product is reduced by 18.3% compared to traditional processes.  

The company has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q31234K5) and the “National Industrial Product Production License” (XK13-014-00128). Its bromine products comply with the national standard GB/T 1280-2021 and passed the Clean Production Audit Verification conducted by the Liaoning Provincial Department of Ecology and Environment in 2024.  

Notable achievements include supplying customized bromide raw materials to listed companies such as Jiangsu Yak Technology Co., Ltd. and Shandong Tian’an Chemical Co., Ltd.; participating in Sinopec Shengli Oilfield’s “Domestic Substitution of High-Density Calcium Bromide Kill Fluid” project (2023–2025), where its supplied calcium bromide solution meets API RP 13I standards; and jointly establishing the “Joint Laboratory for High-Value Utilization of Marine Brine Resources” with Dalian University of Technology in 2024, undertaking the Liaoning Provincial Key R&D Program project titled “Key Technologies for Synergistic Extraction of Bromine and Magnesium from Low-Grade Brine.”  

Its products are exported to South Korea, India, and Southeast Asian countries, with export revenue amounting to approximately RMB 21 million in 2025, primarily shipped via Dalian Port through foreign trade agents, conforming to SN/T 2107-2022 and REACH regulation pre-registration requirements. Domestically, its products serve 23 downstream enterprises across Liaoning, Shandong, Jiangsu, and Zhejiang provinces, achieving a customer repeat-purchase rate of 86.4%. Public records indicate that the company does not hold engineering design qualifications, EPC general contracting capability, or overseas branches; its primary cooperation models include raw material supply, technology licensing, and joint R&D.

Dalian Xinshiji Gas Co.,Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a regional urban gas infrastructure service provider approved by the Department of Housing and Urban-Rural Development of Liaoning Province and holding a valid Gas Business License (License No.: Liao 202302010001G). The company specializes in pipeline gas transmission and distribution, gas sales, installation of gas facilities, and operation & maintenance services. It is currently in normal business operation, with registered capital of RMB 50 million, possessing a stable local franchised operating foundation and capability to implement livelihood projects. Its core businesses cover four areas: natural gas supply to residential and commercial/industrial users; renovation of indoor gas facilities; renewal of aging urban gas pipelines; and operation & maintenance of intelligent gas safety monitoring systems. The company has deeply participated in Dalian’s “Liquefied Petroleum Gas (LPG) Cylinder-to-Pipeline” livelihood project and aging gas pipeline renewal and renovation projects. Its service recipients are concentrated in certain subdistricts of Ganjingzi District and chemical industry supporting gas-consuming units, small- and medium-sized manufacturing enterprises, and public building energy systems within surrounding industrial parks. Its core capabilities include full-cycle execution capability for GB1-class pressure pipeline installation (license valid until 2026), standardized construction and operation & maintenance management supported by the ISO 9001:2015 Quality Management System, and integrated delivery experience—covering aging pipeline assessment, design, construction, and intelligent monitoring—developed through government special projects. It can provide complete technical services ranging from pressure regulating cabinet group installation, medium- and low-pressure gas pipeline laying, to SCADA remote monitoring terminal deployment; however, publicly available information does not indicate its capability in chemical process package development, specialized equipment manufacturing, or independent software platform construction. Regarding qualifications, it holds ISO 9001:2015 certification issued by China Quality Certification Centre (Certificate No.: 00122Q31234R1M, valid until December 18, 2025) and a GB1-class pressure pipeline installation license (License No.: TS3821033-2026) issued by the State Administration for Market Regulation. It has not disclosed ISO 14001/45001 system certifications, High-Tech Enterprise status, or “Specialized, Refined, Distinctive, and Innovative” (Zhuan Jing Te Xin) qualification. A representative project is the “Hongqi Subdistrict Gas Facility Safety Improvement Project,” for which it won the bid in November 2024 (bid amount: RMB 3.867 million), undertaking tasks including upgrading gas connection conditions for industrial users within the area and installing safety interlock systems. Its business scope is limited to the northern and western peri-urban areas of Dalian’s main urban district. Publicly available information shows no overseas investment, overseas project experience, or cross-border technical service records. Its collaboration models include localized engineering implementation, participation as a consortium member in government-specific procurement projects, or provision of gas infrastructure services to chemical industry parks.