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Dalian Zhongmu Special Polymer Materials Co., Ltd. was established in 2021, with its registered address at No. 69, Wuyi Road, Xianjin Subdistrict, Jinpu New Area, Dalian City, Liaoning Province. It is a high-tech enterprise specializing in the research and development, production, and sales of special high-performance polymer materials. The company’s core business covers modified engineering plastic materials featuring high-temperature resistance, corrosion resistance, high flame retardancy, and low dielectric loss. Its products are primarily applied in structural components for new-energy vehicle batteries, high-frequency substrate materials for 5G communication equipment, lightweight components for rail transit systems, and housings for high-end medical devices. Leveraging its municipal-level enterprise technology center, the company possesses independent R&D capabilities and has developed a halogen-free flame-retardant polyphenylene sulfide (PPS) composite material formulation system along with a continuous twin-screw extrusion granulation process. It holds two national invention patents and five utility model patents. The company has obtained ISO 9001 Quality Management System Certification, ISO 14001 Environmental Management System Certification, and Level-3 Standardization Certification for Work Safety Production (Liaoning Emergency Evaluation No. [2023] 187). Its products have achieved UL94 V-0 flame-retardancy certification and have passed RoHS and REACH compliance testing. In 2023, the company participated in the Liaoning Provincial Key R&D Program “Application Demonstration of Special Polymers in Lightweight Equipment,” led by Dalian University of Technology, assuming responsibility for pilot-scale validation of materials. Its products have been listed as secondary qualified suppliers for two leading domestic new-energy vehicle component suppliers. Currently, the company’s business operations cover Liaoning, Jiangsu, and Guangdong provinces, with primary customers being electronics and automotive component manufacturing enterprises located in East and South China.

Dalian Zhongmin Ronghe Gas Co., Ltd. was established in December 2018. It is an urban gas operation enterprise approved by the Liaoning Provincial Department of Housing and Urban-Rural Development and holding a “Gas Business License” (License No.: Liao Ran Jing Zheng Zi [2021] No. 027). The company was jointly funded by Zhongmin Gas (Shenzhen) Co., Ltd. and Ronghe New Energy (Dalian) Co., Ltd., possessing a mixed-ownership background. The company specializes in the construction, operation, and maintenance of urban medium- and low-pressure gas pipeline networks, as well as natural gas sales services, serving residential, commercial, and industrial customers. Its gas supply area focuses on certain subdistricts within Ganjingzi District of Dalian City and the Dalianwan Linhai Equipment Manufacturing Agglomeration Zone. Leveraging professional operation and maintenance capabilities and localized response mechanisms, the company continuously undertakes renovation and upgrading tasks for aging gas pipelines—for instance, in 2023 it participated in the replacement of 8.2 kilometers of medium-pressure pipelines along Huabei Road in the Dalianwan area and the installation of indoor safety devices for 13,000 residential households; in 2024, it won the bid for the Dalianwan Subdistrict Gas Safety Intelligent Monitoring System Construction Project (contract value: RMB 2.976 million), deploying IoT gas meters, AI video recognition terminals, and a district-level early-warning platform—demonstrating its practical implementation capability in digital gas safety management. The enterprise has been certified by the Dalian Gas Industry Association and included in Dalian City’s key regulatory list for the special campaign on urban gas safety. In 2023, its tax payment amounted to approximately RMB 1.86 million, and it enrolled 12 employees in social insurance. Targeting government regulatory authorities, park administrative committees, industrial and commercial energy users, and partners providing smart energy solutions, the company offers pragmatic cooperation pathways including new construction or renovation of gas facilities, entrusted safe operation management, integrated smart monitoring systems, and complementary energy services.

Dalian Zhongfu Gas Co., Ltd. was established in 2003, with its registered address at No. 1 Guotai Road, Sannishibao Subdistrict, Jinzhou District, Dalian City, Liaoning Province. It is a medium- and small-sized private industrial gas supplier serving the local Dalian and southern Liaoning regional markets, specializing in the production, sales, and supporting services of industrial gases. The company’s core business covers the filling, storage, and sale of compressed and liquefied industrial gases—including oxygen, nitrogen, argon, carbon dioxide, acetylene, and hydrogen—as well as gas equipment leasing, technical consultation, and on-site gas supply services. Leveraging stable regional supply capabilities, the company has provided bottled oxygen and nitrogen, as well as on-site gas generation services, to clients in industries such as machinery manufacturing and food processing across Dalian and surrounding areas. The company holds valid licenses: the “Hazardous Chemicals Operation Permit” (Liaoning WH Anjing Zi [2024] No. 02-0186) and the “Gas Cylinder Filling Permit” ((Liaoning) TS4221197-2027); both permits remain valid until 2027 and can be publicly verified on the official websites of the Liaoning Provincial Market Supervision Administration and the Emergency Management Department. As a legally compliant gas filling and operating entity, the company has a registered capital of RMB 10 million, with Wang Fujun serving as its legal representative; its organizational form is a limited liability company (invested in or controlled by natural persons), and it employs approximately 20–30 staff members covered by social insurance. Targeting manufacturing clients, industrial parks, and engineering service providers, the company undertakes conventional industrial gas distribution, customized on-site gas supply solutions, gas cylinder leasing, and basic technical support services.

Dalian Zhengzhong Chemical Co., Ltd. was established in 2003, with its registered address located in the Jinpu New Area of Dalian City, Liaoning Province. It is a high-tech enterprise specializing in the research and development, production, and sales of fine chemicals. The company’s core business covers pharmaceutical intermediates, agrochemical intermediates, electronic-grade specialty additives, and functional auxiliaries; its products are widely applied in pharmaceuticals, agrochemicals, semiconductor packaging, and high-end coatings. Leveraging its in-house R&D laboratory and pilot-scale production facility, the company possesses end-to-end technical capabilities spanning molecular design, process optimization, and continuous large-scale manufacturing. To date, it has been granted seven authorized invention patents, including “A Continuous Preparation Method for High-Purity Benzotriazole Derivatives,” which has already been industrialized. The company also participated in drafting the industry standard “HG/T 5905-2021 Electronic-Grade Benzotriazole.” The company holds the “Safety Production Permit for Hazardous Chemicals” (Liaoning WH Anxu Zheng Zi [2022] No. 02-0086), ISO 9001:2015 Quality Management System Certification, ISO 14001:2015 Environmental Management System Certification, and OHSAS 18001 Occupational Health and Safety Management System Certification (Certificate No.: Q5072200132R2M, valid until November 2025). Representative collaborative practices include providing customized pharmaceutical intermediate synthesis services to three leading domestic CRO enterprises, and supplying electronic-grade corrosion inhibitors stably to a semiconductor packaging materials manufacturer in the Yangtze River Delta region for over five years. Currently, the company’s business covers the East China, North China, and Northeast China regions, primarily serving domestic listed pharmaceutical companies, leading agrochemical enterprises, and electronic materials suppliers. Cooperation models encompass customized R&D, pilot-scale amplification, stable supply, and distribution of standardized products.

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 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 Yushengtian Equipment Manufacturing Co., Ltd., located in the Jinpu New Area of Dalian City, Liaoning Province, is a national high-tech enterprise specializing in the research, development, and manufacturing of industrial automation equipment, precision conveying systems, and customized non-standard machinery. Established in 2003, the company has a registered capital and paid-in capital of RMB 12 million, employs 217 people, with R&D and technical personnel accounting for 41.5% of total staff; its average R&D investment as a percentage of revenue over the past three years stands at 7.3%. Its core business covers intelligent conveying system integration for coal chemical and fine chemical production lines; automated logistics units supporting new-energy battery material production equipment; intelligent warehousing and sorting equipment for chemical environmental protection engineering; and customized delivery of modular accumulation-type conveying platforms targeting customers in the petrochemical and new materials sectors. Key clients include FAW Group, BYD, CATL’s supply chain ecosystem, and DENSO’s Chinese supporting manufacturers. Its core technological capabilities center on integrated mechatronic-software solutions: hardware utilizes Siemens S7-1500 PLC combined with Beckhoff EtherCAT bus architecture; software features the self-developed YUS-OS equipment collaborative control platform (V3.2.1), certified by MIIT for compatibility with China’s information technology innovation (ITI) ecosystem. The company holds four authorized invention patents and 27 utility model patents, primarily applied to high-precision synchronous belt tension adaptive control, multi-station flexible switching positioning, and dynamic tray correction systems for lithium-ion battery modules—already deployed on CATL’s Jiangsu Base Phase II PACK line. The company maintains ISO 9001:2015, ISO 14001:2015, and GB/T 45001:2020 management system certifications; holds the “Special Equipment Production License” (crane manufacturing, TS2421033-2026); and is certified under IATF 16949:2016 for automotive quality management systems. It passed the re-evaluation for High-Tech Enterprise status in 2023 (Certificate No.: GR202321201026). Representative projects include: delivery in 2022 of the conveying system for FAW Jiefang J7 cab body welding line (contract value RMB 28.6 million; cycle time ≤90 seconds per unit); and construction in 2024 of the automatic loading/unloading unit for BYD’s Xiangyang base blade-battery tab-cutting line (incorporating 3D vision guidance and servo-based precise positioning subsystems, achieving 100% first-time acceptance pass rate). The company possesses the capability to provide localized maintenance, repair, and remote diagnostic services for conveying systems at VinFast’s Haiphong factory in Vietnam, and continuously supplies OEM components to Japan’s Yushengtian Co., Ltd., having obtained conformity verification against Japan’s JIS B 8201-2019 Industrial Machinery Safety Standard (AIST-TR-2023-0887).