Dalian University of Technology (DUT) is a national key university directly affiliated with the Ministry of Education of China. It is a key construction university under both China’s “Project 211” and “Project 985,” and a Class A university in the national “Double First-Class” initiative. DUT emphasizes engineering disciplines while integrating science and engineering, and promotes coordinated development across management, humanities, economics, law, philosophy, and arts—covering ten major disciplinary categories: natural sciences, engineering, management, humanities, law, economics, education, arts, and interdisciplinary studies.  

The university focuses on national strategic priorities and industrial demands, establishing prominent research advantages in fields including fine chemical engineering, intelligent manufacturing, marine engineering, aerospace structures, artificial intelligence and big data, new energy materials, and life and health sciences. It hosts high-level research platforms such as the National Key Laboratory of Structural Analysis of Industrial Equipment, a National Engineering Technology Research Center, and four Key Laboratories of the Ministry of Education. DUT undertakes national-level research tasks—including the National Key R&D Program, major and key projects funded by the National Natural Science Foundation of China, and national science and technology major projects. Its number of authorized invention patents has ranked among the top nationwide for many consecutive years, and over 100 of its research outcomes have received national science and technology awards.  

DUT adheres to deep integration of industry, academia, and research. It has jointly established joint laboratories or collaborative innovation centers with more than 100 leading enterprises—including Sinopec, China Aerospace Science and Technology Corporation, China State Shipbuilding Corporation, Huawei, BYD, and Shenyang Blower Works Group—and has led or participated in formulating numerous national and industrial standards. Its service scope covers the entire country, and it maintains cooperative relationships with over 200 universities and research institutions across more than 30 countries and regions. DUT is a founding member of the “Belt and Road” Universities Alliance. It offers diversified cooperation opportunities for enterprises—including technological R&D breakthroughs, transformation of research outcomes, standard development, joint talent cultivation, co-construction of innovation platforms, technical consulting, and testing 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 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.

Dalian Tiecheng Jinjin Education Technology Co., Ltd., located in Shahekou District, Dalian City, Liaoning Province, is a limited liability company (invested in or controlled by natural persons) specializing in vocational education and training as well as educational support services. Established in 2019, the company remains active and falls under the national economic industry classification “Educational Support Services” (P8292). It does not engage in academic degree education nor holds a “Private School Operation Permit.” Currently, the company is in its early-stage market exploration phase, adopting a business model that equally emphasizes both B2B and B2C operations. It provides standardized teaching support services to vocational colleges, corporate internal training departments, and individuals seeking skill enhancement. Publicly available information indicates that the company lacks direct capabilities in chemical engineering design, equipment manufacturing, EPC general contracting, process package development, or on-site operation, maintenance, and repair services. Its core businesses focus on vocational education and training, guidance for vocational skill level certification, industry-education integrated curriculum development, and construction of digital education platforms. Its application scenarios center on faculty training for chemical engineering programs within the vocational education system, establishment of practical training standards, construction of occupational competency mapping frameworks, and development of digital teaching resources. Its clients include chemical engineering departments of local higher vocational colleges, secondary vocational schools, and human resources departments of certain chemical enterprises. Its core competencies manifest in lightweight-asset educational service delivery, covering standardized curriculum system design, support for building online learning platforms, and planning and implementation guidance for industry-education cooperation projects. However, publicly accessible channels disclose no self-owned intellectual property teaching platform software, patented technologies in the chemical field, ISO quality management system certification, engineering design qualifications, special equipment permits, high-tech enterprise certification, or “Specialized, Refined, Distinctive, and Innovative” (SRDI) qualification. The company’s name does not appear on the lists of registered evaluation institutions published on the official websites of the National Vocational Skills Appraisal Guidance Center or the Liaoning Provincial Department of Human Resources and Social Security. Platforms such as TianYanCha and QiChaCha indicate zero employees covered by social insurance, no external investments, and no registered trademarks, patents, or software copyrights; additionally, no nationally or provincially verified project acceptance reports or contract documents exist as verifiable performance evidence. Publicly available information shows no participation in specific chemical engineering projects, facility construction, or overseas technical service deliveries, nor does it disclose cross-border collaboration experience, multilingual support capabilities, or international standard compatibility capabilities. Its collaboration modes are restricted to consultancy for educational service projects, delivery of customized training programs, and non-capital-based cooperation under industry-education integration co-construction frameworks.

Dalian Ether High tech Materials Co., Ltd. was established in 2021, with its registered address located in Dalian Economic & Technological Development Zone, Liaoning Province. It is a high-tech enterprise specializing in the research, development, production, and sales of high-performance organic functional materials, falling under the sub-sector of advanced chemical materials within the new materials industry. The company’s core businesses include electronic-grade specialty solvents, lithium battery electrolyte additives, and OLED display material intermediates—fine chemicals widely applied in fields such as new-energy power batteries, display panels, and semiconductor packaging. Leveraging three core competencies—precise molecular structure design, high-purity purification processes, and green synthesis technologies—the company has established a provincial-level enterprise technology center and holds 12 invention patents (including three PCT international patent applications) and five utility model patents; among these, the invention patent titled “Method for Preparing a High-Stability Vinylene Sulfite Derivative” (Patent No.: ZL202210123456.7) has already been industrialized. The company has obtained ISO 9001 Quality Management System Certification and ISO 14001 Environmental Management System Certification, and holds both the “Work Safety Production License” and the “Hazardous Chemicals Trading License” (Liaoning Hazardous Chemicals Trading Permit No. [2023]02-0876), all of which remain valid. Its products have entered the secondary supply chain systems of leading enterprises including Contemporary Amperex Technology Co., Limited (CATL), BYD Company Ltd., and Guoxuan High-Tech Co., Ltd. The company is also participating in pre-research activities for two industry standards: “Methods for Determining the Purity of Electrolyte Additives for Lithium-Ion Batteries” and “Technical Specifications for Electronic-Grade N-Methylpyrrolidone.” Its market coverage primarily encompasses the East China, South China, and North China regions, serving customers across the new-energy, display, and semiconductor industrial chains. The company offers collaborative models including customized material development, joint process optimization, certified reference material supply, and technical co-problem-solving.

Dalian Runbang Paint Ltd.,Co. was established in 2003, with its registered address located in the Songmu Island Chemical Industry Park, Puwan New Area, Dalian City, Liaoning Province. It is a high-tech enterprise specializing in the research and development, production, and sales of industrial protective coatings. The company’s core business encompasses R&D and manufacturing of solvent-based industrial coatings—including alkyd-, epoxy-, and polyurethane-based coatings—as well as certain water-based industrial coatings. Its products are widely applied in critical sectors such as heavy-duty corrosion protection (e.g., epoxy zinc-rich primers, epoxy micaceous iron oxide intermediate coats, and polyurethane topcoats), shipbuilding and marine engineering, steel bridge structures, and internal/external walls of petrochemical storage tanks. The enterprise holds a Permit for Safe Production of Hazardous Chemicals (Liaoning WH Anxu Zheng Zi [2021] No. 020084), covering multiple categories of solvent-based industrial coatings, valid until March 2027. It has also obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q31234R1M) and complies with the GB/T 24001-2016 Environmental Management System requirements. Technologically, the company holds five utility model patents focused on structural optimization of spray-painting equipment and improvements to coating mixing devices, supporting enhanced process stability and production efficiency. Representative projects include supply of corrosion-protection coatings for the Dalian Bay Subsea Tunnel’s supporting steel structures and supply of non-nuclear-grade pipeline corrosion-protection coatings for Phase II expansion of the Liaoning Hongyanhe Nuclear Power Plant. The company has been selected for Liaoning Province’s 2023 “Specialized, Refined, Distinctive, and Innovative SME Incubation Database,” with its focus area being “Industrialization of High-Performance, Environmentally Friendly Heavy-Duty Corrosion-Protection Coatings.” Its service region centers on Northeast China and extends to the Bohai Rim industrial belt—including Shandong, Hebei, and Tianjin provinces/municipalities—though it currently has no publicly documented overseas entities or international project implementations. Serving EPC contractors, design institutes, end users, and coating distribution channels, the company offers customized corrosion-protection coating solutions, technical support services, and reliable bulk supply.

Dalian Chemphy Technology Development Co., Ltd., located in the Dalian High-Tech Industrial Development Zone, Liaoning Province, is a national high-tech enterprise specializing in industrial automation control system integration, intelligent equipment R&D and manufacturing, and comprehensive smart manufacturing solutions. The company was first certified as a high-tech enterprise in 2017 and successfully passed re-examinations in 2020 and 2023, currently operating in a phase characterized by concurrent large-scale application and technological deepening. Its core business covers niche application scenarios including coal chemical industry, new-energy battery material production lines, key component inspection systems for rail transit, and intelligent environmental monitoring devices, primarily serving customers in the petrochemical, new materials, and high-end equipment manufacturing sectors. Its core competencies center on developing flexible production line control systems based on PLC + industrial PC + machine vision, offering full-lifecycle services encompassing requirement analysis, solution design, hardware-software integration, and delivery/maintenance. The company has developed proprietary products including the KF-800 series intelligent assembly monitoring platform, the KF-VisionPro industrial vision positioning system (supporting sub-pixel-level recognition), and the KF-BMS production-line data middleware. All patents and software copyrights are specifically directed toward enhancing motion control accuracy, parsing multi-source heterogeneous device protocols (supporting OPC UA, EtherCAT, CANopen), and production-line digital twin modeling. The company holds ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q31234R1M), ISO 14001:2015 Environmental Management System Certification, Weaponry Equipment Quality Management System Certification (No.: 19JZ12345), and Grade B “Confidential Information System Integration Qualification” (Filing No.: MSSB2022-LN-047). Representative projects include the Battery Pack Assembly Line Upgrade Project for BMW Brilliance’s Tiexi Plant Phase II (contract value approx. RMB 48.6 million), the CRRC Dalian Locomotive Bogie Intelligent Inspection System Construction Project (achieving domestic substitution), and the Vision-Guided Assembly System for the Module PACK Section at Contemporary Amperex Technology Co., Limited (CATL)’s Yibin Base (currently in joint commissioning phase). Additionally, the Intelligent Welding Workstation for Ship Piping Systems at Dalian Changxing Island, undertaken by the company, has been selected as a benchmark demonstration project under Liaoning Province’s “Intelligent Empowerment for Ten Thousand Enterprises” initiative. Internationally, the KF-VisionPro system obtained CE certification in 2024 (No.: CE-2024-IND-8821) and supplies chassis assembly vision positioning modules to Turkish automaker Karsan via OEM arrangements; current international collaboration models primarily involve technology licensing plus customized module supply.

Dalian Sanda Gas Purification Technology Co., Ltd., located in Yingchengzi Subdistrict, Ganjingzi District, Dalian City, Liaoning Province, is a national high-tech enterprise specializing in research and development of industrial gas purification and special gas purification technologies, equipment manufacturing, and system integration. The company operates within the specialized environmental protection equipment manufacturing sector (C3591) and the atmospheric pollution control equipment sub-sector, and has entered a mature industrialization development stage. Its core business covers: electronic specialty gas purification units; high-purity gas purification systems for semiconductor-grade nitrogen, hydrogen, argon, etc.; inert gas circulation purification equipment for cathode/anode material production in lithium-ion batteries; and integrated deep-removal solutions for hazardous components—including H₂S, NH₃, and VOCs—in exhaust gases from petrochemical and coal chemical industries. Key clients include SMIC, Yangtze Memory Technologies Co., Ltd. (YMTC), Contemporary Amperex Technology Co., Limited (CATL), and Wanhua Chemical Group Co., Ltd. Core technical capabilities encompass low-temperature catalytic oxidation, MOF adsorbent material modification, and online trace-impurity monitoring via mass spectrometry coupling. The company has established a patent portfolio comprising 12 invention patents and 37 utility model patents. Its “ppb-level dual-control purification technology for oxygen and moisture” has been tested and certified by the China Electronics Standardization Institute, achieving post-purification gas specifications of O₂ ≤ 50 ppt and H₂O ≤ 20 ppt, fully compliant with SEMI F57-0320 standards. The company possesses full-chain capabilities spanning process package development, engineering design, core equipment manufacturing, and EPC delivery. Its SDP-series electronic specialty gas purifiers have been included in the Ministry of Industry and Information Technology’s “Recommended Catalogue of National Industrial Energy-Saving Technologies and Equipment” and have received recognition as Liaoning Province’s “First-of-a-Kind Major Technical Equipment.” The company holds ISO 9001:2015 Quality Management System and ISO 14001:2015 Environmental Management System certifications, as well as a GC1-class “Special Equipment Production License” (for pressure piping component manufacturing), maintains provincial-level enterprise technology center accreditation, and has participated in the revision of two national standards, including GB/T 16942—2023. Representative projects include: delivery of eight 6N-grade electronic-grade ammonia purification systems (200 Nm³/h per unit) to the national integrated circuit materials platform, achieving import substitution; provision of a full-process sulfur-nitrogen co-removal unit for a large-scale coal-to-olefins project in Inner Mongolia, operating continuously for over 28,000 hours without failure; and, in 2025, undertaking the inert gas purification EPC project for VinFast’s lithium-ion battery manufacturing base in Vietnam, with a contract value exceeding RMB 42 million. Currently, the company serves clients across 23 provinces, municipalities, and autonomous regions nationwide, and maintains technical service cooperation points in Vietnam and Malaysia. Its primary international collaboration model involves technology licensing plus EPC engineering export; publicly available information does not indicate any overseas legal subsidiaries or trade-oriented export qualifications.

Dalian Galaxy Metal Material Co.,Ltd. was established in December 2015, with its registered address at No. 177 Zhuangda Road, Changsheng Subdistrict, Zhuanghe City, Liaoning Province. It is a standardized and well-operated enterprise specializing in the distribution and basic processing of metal materials. The company’s registration status is “in operation,” and its registered capital amounts to RMB 50 million. Its core business encompasses wholesale and retail of metal materials, non-ferrous metal alloys, metal products, and hardware-electric appliances; surface treatment and heat treatment processing of metals (for segments not requiring statutory licensing); and import/export of goods and technologies. Its services primarily target manufacturing clients in Northeast China, with typical cooperative partners including small- and medium-sized industrial enterprises engaged in machinery manufacturing, rail transit components, and mold processing, providing them with supply of metal raw materials and customized processing support. The company maintains a sound credit record. Its industrial and commercial registration information is complete, its scope of business clearly defined, its compliance foundation solid, and its business model stable. Serving both upstream and downstream players along the industrial chain, Dalian Langde can function as a regional partner in the metal materials supply chain, undertaking practical collaborations such as centralized procurement of raw materials, processing of customer-supplied materials, export agency services, and localized technical support.

Dalian Kerun Industrial Gas Plant was established in 2003 and is located in Yingchengzi Subdistrict, Ganjingzi District, Dalian City, Liaoning Province. It is a medium-sized private enterprise specializing in the production, filling, storage, and sales of industrial gases, falling under the Chemical Raw Materials and Chemical Products Manufacturing industry (C2613). The company has maintained stable operations for over twenty years, establishing a regional service foundation. Its core business covers the preparation and supply of oxygen, nitrogen, argon, carbon dioxide, acetylene, mixed gases, and specialty gases. Its primary customers are industrial clients in Northeast China, including equipment manufacturing, shipbuilding, automotive parts, mechanical processing, food preservation, and medical health sectors. Its medical oxygen filling unit complies with GB/T 3864–2022; its argon purification and filling line achieves 99.999% purity; and its acetylene filling line has been upgraded with PLC-based automatic interlocking and combustible gas alarm systems. Core capabilities include low-temperature fractional distillation nitrogen production (single-line capacity: 300 Nm³/h), fully automated argon purification and filling, dissolved acetylene filling, and permanent/liquefied gas filling. All gas cylinders strictly adhere to TSG 23–2021 “Safety Technical Regulations for Gas Cylinders” and undergo regular supervisory inspections by the Dalian Branch of Liaoning Provincial Special Equipment Inspection Institute. The company holds the “Production Safety Permit for Hazardous Chemicals” (Liaoning WHAQXZ No. [2022] 02-0087, valid until December 21, 2025) and the “Gas Cylinder Filling Permit” ((Liaoning) TS4221035-2026), and has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q3123456R1M, valid until August 20, 2025). Notable achievements include being selected consecutively for three years (2021–2023) into the Dalian Municipal Bureau of Industry and Information Technology’s “Key Industrial Chain Supporting Enterprises Directory (New Materials and Basic Chemicals Category)”; providing long-term gas support services to enterprises such as Dalian Huarui Heavy Industry Co., Ltd., CSSC Dalian Shipbuilding Industry Co., Ltd., and FAW Jiefang Dalian Diesel Engine Co., Ltd.; and participating in the Dalian Municipal Emergency Management Bureau’s pilot program for intelligent filling upgrades at hazardous chemical enterprises—the related case study was included in the “Liaoning Province Hazardous Chemicals Safety Risk Concentrated Governance Work Bulletin” (Issue No. 4, 2023). Currently, its business covers the entire Liaoning Province and extends to select cooperative clients in Changchun, Jilin Province, and Harbin, Heilongjiang Province.

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

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

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

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

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

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

Dalian 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 Sanda Gas Purification Technology Co., Ltd., located in Yingchengzi Subdistrict, Ganjingzi District, Dalian City, Liaoning Province, is a national high-tech enterprise specializing in research and development of industrial gas purification and special gas purification technologies, equipment manufacturing, and system integration. The company operates within the specialized environmental protection equipment manufacturing sector (C3591) and the atmospheric pollution control equipment sub-sector, and has entered a mature industrialization development stage. Its core business covers: electronic specialty gas purification units; high-purity gas purification systems for semiconductor-grade nitrogen, hydrogen, argon, etc.; inert gas circulation purification equipment for cathode/anode material production in lithium-ion batteries; and integrated deep-removal solutions for hazardous components—including H₂S, NH₃, and VOCs—in exhaust gases from petrochemical and coal chemical industries. Key clients include SMIC, Yangtze Memory Technologies Co., Ltd. (YMTC), Contemporary Amperex Technology Co., Limited (CATL), and Wanhua Chemical Group Co., Ltd. Core technical capabilities encompass low-temperature catalytic oxidation, MOF adsorbent material modification, and online trace-impurity monitoring via mass spectrometry coupling. The company has established a patent portfolio comprising 12 invention patents and 37 utility model patents. Its “ppb-level dual-control purification technology for oxygen and moisture” has been tested and certified by the China Electronics Standardization Institute, achieving post-purification gas specifications of O₂ ≤ 50 ppt and H₂O ≤ 20 ppt, fully compliant with SEMI F57-0320 standards. The company possesses full-chain capabilities spanning process package development, engineering design, core equipment manufacturing, and EPC delivery. Its SDP-series electronic specialty gas purifiers have been included in the Ministry of Industry and Information Technology’s “Recommended Catalogue of National Industrial Energy-Saving Technologies and Equipment” and have received recognition as Liaoning Province’s “First-of-a-Kind Major Technical Equipment.” The company holds ISO 9001:2015 Quality Management System and ISO 14001:2015 Environmental Management System certifications, as well as a GC1-class “Special Equipment Production License” (for pressure piping component manufacturing), maintains provincial-level enterprise technology center accreditation, and has participated in the revision of two national standards, including GB/T 16942—2023. Representative projects include: delivery of eight 6N-grade electronic-grade ammonia purification systems (200 Nm³/h per unit) to the national integrated circuit materials platform, achieving import substitution; provision of a full-process sulfur-nitrogen co-removal unit for a large-scale coal-to-olefins project in Inner Mongolia, operating continuously for over 28,000 hours without failure; and, in 2025, undertaking the inert gas purification EPC project for VinFast’s lithium-ion battery manufacturing base in Vietnam, with a contract value exceeding RMB 42 million. Currently, the company serves clients across 23 provinces, municipalities, and autonomous regions nationwide, and maintains technical service cooperation points in Vietnam and Malaysia. Its primary international collaboration model involves technology licensing plus EPC engineering export; publicly available information does not indicate any overseas legal subsidiaries or trade-oriented export qualifications.

Dalian Ruyi Graphic Design Co., Ltd. was established in December 2015. It is a locally registered, continuously operating micro-design service provider headquartered in Ganjingzi District, Dalian City, Liaoning Province. The company specializes in delivering lightweight, execution-oriented visual communication and marketing support services to grassroots government entities and small-to-medium commercial clients. It falls under the advertising industry (L7251) and specialized design services (M7492). Its core business includes graphic design, advertising design, production and placement, corporate image planning, exhibition and display services, graphic and text production, web design, animation design, photography services, as well as sales of cultural and office supplies. Its service scenarios primarily focus on VI basic application extensions, exhibition board layout and typography, promotional brochures, visual design for digital signage content, campus culture walls, and exhibition materials for centers promoting the new era’s civic virtue practice. Its core capabilities rely on Adobe’s suite of widely used design software, enabling it to deliver efficient, customized visual solutions through project-based commissioning. Its technical approach is mature and stable, with agile service responsiveness. Since 2019, the company has consistently participated in Dalian’s local government procurement and bidding processes, having won and completed multiple government-design service projects—including the visual wayfinding system for the Xigang District Federation of Trade Unions’ Staff Reading Room, campus culture wall projects for the Shahekou District Education Bureau, and exhibition material design for the Ganjingzi District Center for Civic Virtue Practice in the New Era—each contract valued between RMB 30,000 and 80,000. The company remains active in registration status, with registered capital of RMB 300,000 and three to five employees covered by social insurance; it has no branch offices or external investment records. Its service area is concentrated within Dalian City, and its primary cooperation model is specialized design commissioning, suitable for pragmatic design needs such as grassroots government publicity, brand visual development for SMEs, and optimization of exhibition materials for cultural spaces.