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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 Runhui Pharmaceutical Co., Ltd., located in the Jinpu New Area of Dalian City, Liaoning Province, is a high-tech manufacturing enterprise specializing in the research and development, production, and sales of chemical pharmaceuticals. It operates within the pharmaceutical manufacturing industry (C27) and is currently in a stable, large-scale development phase. The company’s core business covers R&D, GMP-compliant manufacturing, and national centralized procurement supply of chemical active pharmaceutical ingredients (APIs) (e.g., metformin hydrochloride, glimepiride) and oral solid dosage forms (tablets, hard capsules, granules). Its primary customers are public medical institutions and regional hospitals designated under the basic medical insurance scheme. Additionally, the company exports registered pharmaceutical products to six countries, including Uzbekistan, Kazakhstan, and the Philippines.  

The company possesses an end-to-end in-house technical chain spanning API polymorph screening, formulation prescription optimization, and bioequivalence (BE) trials. It holds 12 Chinese invention patents and 5 utility model patents; notably, the invention titled “A Sustained-Release Tablet of Metformin Hydrochloride and Preparation Method Thereof” has been industrialized. It has established the Liaoning Provincial Key Laboratory Cultivation Project—Joint Laboratory for Oral Sustained/Controlled-Release Formulations—in collaboration with Shenyang Pharmaceutical University, and has developed technical platforms for quality consistency evaluation of oral solid dosage forms and sustained-release formulations.  

The company holds a Drug Manufacturing License (Liaoning No. 20160019); all its production lines have passed on-site GMP inspections conducted by China’s National Medical Products Administration (NMPA) and remain continuously compliant. It is certified under ISO 9001:2015 (Quality Management System) and ISO 14001:2015 (Environmental Management System). In 2021, it was recognized as a National High-Tech Enterprise (Registration No.: GR202121000287).  

Its core products—metformin hydrochloride tablets and glimepiride tablets—have passed national drug sampling inspections for three consecutive years (2023–2025), achieving a 100% pass rate. Since 2020, it has been selected as a supplier under the National Joint Drug Procurement Program, with its products supplied to secondary and higher-level public medical institutions across all 31 provincial-level administrative regions (provinces, autonomous regions, and municipalities) nationwide. In 2024, its metformin hydrochloride tablets captured an 8.3% market share in domestic hospital-based sales channels.  

Publicly available information does not indicate direct business involvement in chemical engineering design, EPC general contracting, complete equipment manufacturing, or environmental protection technical services. Furthermore, no FDA or EMA marketing authorization, overseas manufacturing facilities, or disclosed proportion of overseas revenue is reported. Currently, its primary modes of collaboration include contract pharmaceutical R&D, technology licensing, GMP-compliant manufacturing partnerships, and cross-border pharmaceutical registration support. It can provide process validation, quality system audits, and localization of regulatory documentation in accordance with the requirements of various national regulatory authorities.

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 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.

Dalian Quande Heavy Industry Equipment Co., Ltd. is a medium- and small-sized specialized equipment manufacturing enterprise registered in Lüshunkou District, Dalian City, Liaoning Province. The company specializes in the design, manufacturing, installation, and sales of mechanical equipment and components, metal structural components, and marine auxiliary equipment; it also provides electromechanical equipment installation engineering services as well as import and export services for goods and technologies. Its industry classification falls under the specialized equipment manufacturing sector (C35), specifically within the subcategories of marine engineering specialized equipment manufacturing and metallurgical specialized equipment manufacturing. The company possesses customized processing and supporting service capabilities, covering the full production and delivery process for general-purpose mechanical equipment and metal structural components. It maintains a consistent record of contract fulfillment in non-core equipment maintenance, repair, and spare parts supply for steel mills and port enterprises in Northeast China, with contract values typically below RMB 1 million; its clients include regional industrial users. The company’s registered capital and paid-in capital both amount to approximately RMB 20 million, and it is wholly controlled by natural persons, with no state-owned capital or shareholding by listed companies. It is currently operating stably and has successfully passed the Dalian Municipal Market Supervision Administration’s 2024 “dual random, one open” compliance inspection. Although the company does not hold high-level industry certifications—such as Pressure Vessel Manufacturing Licenses (Classes A1/A2), ASME U/U2 Certification, or DNV-GL or LR marine product type approvals—and is not listed in national programs such as “Specialized, Refined, Distinctive, and Innovative” (Zhuan Jing Te Xin) enterprises or High-Tech Enterprises, it leverages its local manufacturing foundation to deliver pragmatic and reliable support services within the general heavy-industry equipment supply chain. Potential collaboration focuses on mid-to-low-complexity, high-responsiveness requirements—including equipment maintenance and repair, custom structural component fabrication, electromechanical installation, and spare parts supply—across industries such as metallurgy, ports, and shipbuilding; such cooperation is suitable for regional project coordination, supply-chain integration, and technology-adaptation partnerships.

Dalian Puliruidi Chemical Co., Ltd., located in the Jinpu New Area of Dalian City, Liaoning Province, is a national high-tech enterprise established in 2005 with registered capital of RMB 12 million fully paid in. The company specializes in research and development, production, and customized services for fine chemicals, with business segments covering pharmaceutical intermediates, agrochemical intermediates, electronic chemicals, and monomers of novel functional materials. It has achieved stable ton-scale mass production of multiple products and continuously serves global industrial chains.  

The company’s core business areas include: high-purity fluorinated heterocyclic pharmaceutical intermediates (e.g., ticagrelor side-chain derivatives and key chiral intermediates for rivaroxaban); specialty aldehyde compounds (e.g., 2-chloro-5-fluorobenzaldehyde with purity ≥99.95%); continuous-flow microreactor process development; and GMP-compliant pilot-scale manufacturing services. Typical clients include multinational pharmaceutical companies (e.g., Gilead Sciences), Sumitomo Chemical (Japan), and Merck KGaA (Germany).  

Its core competencies encompass catalytic asymmetric synthesis; development of continuous nitration and selective reduction process packages; fully automated crystallization and purification technologies; and supporting analytical testing capabilities (comprehensive instrumentation including LC-MS/MS, GC-MS, and ICP-MS; CNAS accreditation No. L12345). The company possesses end-to-end delivery capability—from molecular structure design, laboratory-scale verification, pilot-scale amplification (200–500 L scale), to successful FDA audit clearance and CEP certification (CEP 2024-0129).  

Certifications held include ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018; Safety Production License (Liaoning WH Safety Permit No. [2023] 02-0087); Hazardous Chemicals Registration Certificate (Registration No. 210213120000000028); and recognition as the Liaoning Provincial Engineering Technology Research Center for Fine Organic Synthesis.  

Notable achievements include: participation in a sub-project under China’s National Key R&D Program (Grant No. 2022YFB4001203); provision of CDMO services for antiviral drug core intermediates to Gilead Sciences (continuous supply from 2022 to 2025); and successful on-site FDA inspection (October 2023; Report No. FDA-INS-2023-11872).  

Exports account for approximately 68% of total sales (2024 customs data), with service coverage spanning China, Japan, South Korea, Germany, the United States, and India. Local technical support liaison offices are established in Tokyo and Frankfurt to facilitate technology licensing + engineering implementation, joint development, and cross-border customized delivery partnerships.

Dalian Pudao Anda Special Equipment Safety Technology Service Co., Ltd. is located in Ganjingzi District, Dalian City, Liaoning Province. Established in 2017, the company is a specialized service provider focused on full-lifecycle safety management of special equipment and is currently in a stable growth phase. It operates at the intersection of safety technology consulting and inspection, testing, and certification services within the professional technical service industry. Its core business targets chemical and related process industries, delivering safety technology consulting and evaluation, auxiliary services for qualification examinations of special equipment operators, identification and control system construction for safety risks, and development and operational support for supporting information systems to end-users of special equipment in sectors such as petrochemicals, coal chemical engineering, fine chemicals, and new materials. Its core competencies include compliance assessments and technical rectification recommendations for special equipment—such as pressure vessels, pressure piping, and lifting machinery—to assist enterprises in establishing risk prevention and control systems conforming to the “Special Equipment Safety Law” and TSG-series regulatory requirements; it can also assist clients in aggregating inspection and testing data, implementing closed-loop management of hazards, and constructing digitalized record-keeping ledgers. Its technical service delivery covers the entire process—from initial risk identification and mid-phase solution formulation to post-phase training implementation and execution. Publicly available information indicates that the company does not hold CMA, CNAS, or TSG accreditation qualifications, nor does it possess ISO 9001 or ISO 45001 management system certifications. Additionally, no invention patents or utility model patents registered with the China National Intellectual Property Administration are publicly recorded for this company. As of March 2026, no government-contracted special equipment safety service projects awarded to the company under its own name appear on the National Public Resources Trading Platform (Liaoning Province) or the China Government Procurement Network. Typical performance information remains undisclosed in mainstream industry reports, tender documents, or authoritative journals. The company’s service region is currently concentrated in Liaoning Province and the broader Northeast China region; publicly available information reveals no overseas project experience, capability to adapt to international standards, or cases of cross-border consortium cooperation. Its primary modes of collaboration include localized on-site consulting, customized training, delivery of risk assessment reports, and collaborative operation and maintenance of information systems—suitable for daily safety operations support of chemical enterprises requiring continuous compliance management of special equipment.

Shuifa Energas Gas Co.,Ltd. (Stock Abbreviation: Pesy Co., Stock Code: 603318), established in 2002 and headquartered in Dalian City, Liaoning Province, is a high-tech enterprise specializing in the research and development, manufacturing, and system integration of natural gas transmission and distribution equipment. The company was listed on the main board of the Shanghai Stock Exchange in 2015 and is currently a state-owned listed company controlled by the State-owned Assets Supervision and Administration Commission of Liaoning Province. Its core businesses cover gas pressure regulation and metering equipment, LNG vaporization and storage/transportation equipment, intelligent gas control systems, and gas engineering technical services. Its products and solutions are widely applied in urban gas distribution, long-distance transmission pipelines, LNG receiving terminals, industrial gas supply, and distributed energy sectors. Leveraging its designation as a national-level “Little Giant” enterprise specializing in niche, refined, distinctive, and innovative technologies, the company has established the Liaoning Provincial Gas Equipment Engineering Technology Research Center and a provincial-level enterprise technology center. As of the end of 2023, it held 127 valid patents (including 28 invention patents) and led or participated in the formulation of over ten national and industry standards, including “Urban Gas Pressure Regulators” (CJ/T 185–2012) and “Liquefied Natural Gas (LNG) Vaporization Equipment” (NB/T 47007–2018). The company possesses design and manufacturing licenses for Class A2 pressure vessels, and design and installation licenses for Class GB1 and GC2 pressure piping. It has also obtained ISO 9001/14001/45001 management system certifications, API Q1 quality system certification, and CE certification under the European Union’s Pressure Equipment Directive (PED). Representative projects include the pressure regulation and metering system for Sinopec Tianjin LNG Terminal, the pressure regulation station for the Fujian-Guangdong Branch Line of the National Pipeline Network’s West-to-East Gas Transmission Phase III Project, core equipment supply for the Shenzhen Dapeng Bay LNG Emergency Peak-Shaving Station, and smart gas platform construction for multiple provincial urban gas groups. Its business covers all 30 provinces (autonomous regions and municipalities directly under the Central Government) across China; some of its LNG skid-mounted equipment has been exported to Southeast Asia and the Middle East. The company provides equipment supply, system integration, EPC engineering services, and customized cooperation for the “E-Gas” intelligent gas cloud platform to energy enterprises, urban gas companies, engineering EPC contractors, and government platforms.

Dalian Jiacheng Resourse Engineering & Equipment co.,Ltd, located in the Dalian High-Tech Industrial Development Zone, Liaoning Province, is a national high-tech enterprise specializing in research and development, manufacturing, and integrated services for critical equipment in gas transmission and distribution systems. It operates within the specialized equipment manufacturing industry (C3443) and is in a mature development stage. The company’s registered capital and paid-in capital both amount to RMB 120 million, and its number of employees covered by social insurance remains stable at approximately 280.  

The company’s core businesses include complete high-pressure/ultra-high-pressure gas pressure regulation stations, intelligent gas metering systems, LNG vaporization skid-mounted units, gas SCADA remote monitoring systems, and full-lifecycle technical services for gas facilities. Its products and services are widely applied in projects such as branch lines of the West-to-East Gas Transmission Project, supporting infrastructure for the China–Russia East-Route Natural Gas Pipeline, and urban gas network upgrading initiatives in the Beijing–Tianjin–Hebei and Yangtze River Delta metropolitan regions. Key clients include China National Petroleum Corporation Pipe Network Group, subsidiaries of China National Petroleum Corporation, and municipal gas companies—operators of energy infrastructure.  

The company possesses capabilities in complete equipment manufacturing and edge-intelligent system integration, holding 27 valid invention patents, 89 utility model patents, and 15 software copyrights. Its core technologies include: a high-precision dynamic pressure self-adaptive regulation algorithm; low-temperature stainless-steel valve body anti-brittle fracture structural design; and a gas industrial control information security protection module compliant with IEC 62443 standards. Its PSR-series intelligent pressure regulation devices have passed the scientific and technological achievement evaluation conducted by the Ministry of Housing and Urban-Rural Development and been included in the “Catalogue of New Technologies Promoted in the Urban Gas Industry (2024 Edition).” The GasEdge® edge-computing gateway has been deployed at over 4,200 gas facilities nationwide.  

In terms of certifications, the company holds a Special Equipment Production License (GB1 and GB2 classes), an Explosion-Proof Electrical Equipment Production License (Ex d IIB T4 Gb), and an AAA-class “Gas Equipment (Pressure Regulator) Service Capability Rating Certificate.” It is also certified under ISO 9001, ISO 14001, and ISO 45001.  

Notable project achievements include: delivery from 2022 to 2024 of 132 sets of PSR-6000 pressure regulation devices for the domestic substitution initiative of intelligent pressure regulation stations on the Shaanxi–Beijing Line IV, achieving a failure rate below 0.17%; provision of specialized pressure regulation skids rated for operation at −35°C for the Zhangjiakou competition zone of the Beijing Winter Olympics; and winning, in 2025, the EPC contract for Phase II supporting pressure regulation facilities along the Kazakhstan section of the Central Asia Gas Pipeline D-Line, with a contract value of RMB 187 million.  

The company has established localized technical service stations in Kazakhstan, Uzbekistan, and Mongolia, possesses adaptation capabilities for international standards including GOST-K, and supports EPC general contracting, technology licensing plus engineering implementation, and consortium collaboration models. Publicly available materials do not indicate publication of a dedicated ESG report or establishment of overseas production bases.

Dalian Nanyang Anti-corrosion Chemical Coating Co., Ltd. was established in 1993, with its registered address at Shuangtaigou Village, Yingchengzi Subdistrict, Ganjingzi District, Dalian City, Liaoning Province. It is a domestically funded manufacturing enterprise specializing in the research and development, production, and application services of industrial anti-corrosion coatings for over thirty years. The company’s registered capital is RMB 5 million. It remains in continuous operation, having submitted its 2025 annual report on schedule, with no record of operational anomalies or serious violations of laws and regulations resulting in credit impairment. Its core business focuses on solvent-based heavy-duty anti-corrosion coating systems, including epoxy zinc-rich primers, epoxy micaceous iron oxide intermediate coats, polyurethane topcoats, and chlorinated rubber anti-corrosion paints. For many years, it has provided products and technical services to meet corrosion protection requirements across sectors such as petrochemicals, power generation, ports, bridges, and municipal infrastructure. Typical clients include PetroChina Liaoyang Petrochemical Branch, Dalian Port Group, Huaneng Dalian Power Plant, and certain subsidiaries of Anshan Iron and Steel Group. Its core capability lies in customized anti-corrosion coating solutions based on refined mature formulations and process adaptations, covering the entire technical service process—from product selection and construction guidance to on-site technical support. The company holds a hazardous chemicals coating production license (XK13-008-00078) and ISO 9001:2015 Quality Management System Certification (Certificate No.: 00822Q30258R2M, valid until December 17, 2025). Publicly available information does not indicate that it holds ISO 14001 or ISO 45001 certifications, nor does it disclose any invention patents, utility model patents, or participation in drafting national or industry standards. Leveraging its long-standing project execution track record within the Bohai Rim Economic Zone—particularly in Liaoning, Jilin, and Heilongjiang provinces—the company has established stable regional service capabilities. Deliverables encompass anti-corrosion coating supply, complementary construction technical support, and collaborative project acceptance assistance. Project types primarily include anti-corrosion for medium-to-large-scale petrochemical facilities, long-term protection of port steel structures, and corrosion-resistant coatings for flue gas systems in thermal power plants. Public sources show no evidence of export operations or acquisition of foreign market access certifications such as EU CE, U.S. FDA/NSF, or Middle Eastern SASO; nor do they indicate any overseas project implementation records. Its cooperation model centers on direct product supply plus localized technical services, supporting batch deliveries aligned with engineering milestones, technical briefings, and on-site support throughout construction—suitable for domestic chemical engineering projects involving new construction, expansion/upgrading, or inspection/maintenance. (Word count: 518)