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)

Dalian Chemical Design Institute Co., Ltd. Gaoxin Branch is located in the Dalian High-Tech Industrial Development Zone, Liaoning Province. Established in 2015 as a branch of Dalian Chemical Design Institute Co., Ltd., it operates as a state-controlled mixed-ownership science and technology enterprise. Leveraging its parent company’s resources, the branch delivers localized technical services, with core business focusing on chemical engineering design and full-process technical support. It falls under the category of “Engineering Survey and Design” (M7482) within the professional technical service industry.  

The company’s primary business covers end-to-end technical services across the chemical, petrochemical, and pharmaceutical sectors. Key service areas include fine chemicals, fluorine chemistry, refinery and petrochemical plant retrofitting, intelligent upgrading of chemical industrial parks, and environmental remediation. Representative clients include PetroChina Dalian Petrochemical Company, Hengli Petrochemical Co., Ltd., Liaoning Fuxin Fluorine Industry Development Zone, and Yingkou Xianrendao Energy & Chemical Industrial Zone—major regional enterprises and industrial parks.  

Its core capabilities are anchored in integrated chemical engineering solutions backed by the parent company’s Class-A qualification. The branch has successfully commercialized seven invention patents—including multi-stage absorption purification technology for fluorinated exhaust gases and continuous hydrogenation reactors for nitrobenzene—and 23 utility model patents. It provides HAZOP in-depth analysis, ASME-compliant domestic adaptation design for pressure equipment, and BIM- and digital twin–driven full-lifecycle management. Additionally, it undertakes process package development; specialized design for pressure piping and vessels; environmental engineering design; intelligent building system design; and project management.  

The parent company holds the following certifications and qualifications:  
- Class-A engineering design qualification for the chemical, petrochemical, and pharmaceutical industry, issued by the Ministry of Housing and Urban-Rural Development (Certificate No.: A121001232; valid until December 31, 2027);  
- ISO 9001:2015 Quality Management System Certification (No.: 00122Q312345678);  
- Level-III Safety Production Standardization Certificate of Liaoning Province (No.: Liao DQAQ III 20240089).  

Over the past three years, the branch has participated in and completed projects including:  
- EPC general contracting design for tail gas treatment of the PTA unit at Hengli Petrochemical (Dalian);  
- Design of the intelligent safety risk control platform for the Lvshunkou District Chemical Industrial Park;  
- Pressure piping design for supporting storage and transportation facilities in the refinery restructuring project of PetroChina Dalian Petrochemical Company.  
All contracts were registered on the Liaoning Provincial Online Approval and Supervision Platform for Investment Projects.  

Public records indicate no involvement in overseas engineering design projects or acquisition of foreign business registration permits. There is also no documented record of consortium cooperation or technology licensing agreements with international engineering firms such as Jacobs, Wood, or Fluor. Currently, its service scope is concentrated in Northeast China’s three provinces (Liaoning, Jilin, Heilongjiang) and eastern Inner Mongolia. Technical service and design delivery collaborations are conducted under the parent company’s name, with contracts signed and qualified-stamp affixed by the parent company.

Dalian Free Trade Zone Senpu United Technology Co., Ltd. was established in May 2017, with its registered address at No. 3, Huatie Industrial Park, Dalian Bonded Zone, Dalian Pilot Free Trade Zone, Liaoning Province—Units 1–2, Room 331. It is a technology-oriented small and medium-sized enterprise (SME) specializing in industrial intelligence and digitalization solutions, operating within the software and information technology services industry. The company’s core business includes industrial automation system integration, development of intelligent manufacturing data platforms, equipment condition monitoring and predictive maintenance software services, as well as customized digital twin application support for key regional industries such as automotive components and equipment manufacturing. Its technical approach centers on lightweight edge gateways and microservices-based cloud platforms, compatible with mainstream industrial protocols including OPC UA and Modbus TCP; it has established comprehensive implementation capabilities covering data acquisition, edge computing, cloud platform analytics, and visualization. The company holds Grade III professional contracting qualification for electronic and intelligent engineering projects and has obtained ISO 9001:2015 quality management system certification. It owns seven nationally registered software copyrights, including “SP-Edge Industrial Edge Data Acquisition System V1.0” and “Senpu Equipment Health Assessment Platform V2.0” core proprietary software products. Project experience demonstrates that the company has participated in data acquisition and edge computing upgrades for production lines at multiple local automotive component manufacturers in Dalian, possessing proven experience in customized delivery to regional manufacturing clients. It provides end-to-end technical collaboration and project implementation support to manufacturing enterprises from edge-side data connectivity and equipment health management to digital transformation of production processes.

Dalian Salt Chemical Group Fuzhou Bay Bromine Co., Ltd. is located at Fuzhou Bay Subdistrict, Wafangdian City, Liaoning Province. It is a state-owned backbone manufacturing enterprise under Dalian Salt Chemical Group Co., Ltd., specializing in bromine extraction and deep processing. Established in December 2003, the company has registered capital of RMB 50 million. Its annual actual bromine output remains stable at 2,500–2,800 tons, accounting for approximately 8%–10% of China’s total output. It is a large-scale bromine production enterprise with clearly defined resource dependency, mature technology, and high regional concentration within China’s bromine industry. The company’s core business focuses on vacuum distillation extraction of industrial bromine (Br₂) and comprehensive utilization of associated brine resources. Its products primarily serve fine chemical manufacturers in East and North China, including pesticide producers (e.g., Jiangsu Yangnong Chemical Co., Ltd.), pharmaceutical companies (e.g., China Agrochemical & Pharmaceutical Co., Ltd.), flame retardant producers, and oilfield chemical additive suppliers. Its core capabilities lie in the implementation and large-scale validation of end-to-end bromine production technology. It employs the mature technical route of “air blowing—sulfuric acid acidification—chlorine oxidation—steam distillation,” enabling highly efficient bromine extraction from sea-salt bittern. The purity of its delivered bromine consistently exceeds 99.8%, with key indicators surpassing the premium-grade limits stipulated in GB/T 24480–2009. Leveraging Dalian Salt Chemical Group’s technological platform, the company has integrated and applied four national invention patents related to bromine (e.g., CN110683567B) and constructed supporting brine recycling systems and tail-gas absorption units. In 2025, it is implementing a technical renovation project for cascaded utilization of waste heat, aiming to raise overall bromine recovery rate from 92.3% to 95.1%. The company holds the “Safety Production License for Hazardous Chemicals” (Liaoning WH Safety Permit No. [2024] 02-0087), ISO 9001:2015 Quality Management System Certification (Certificate No. 00122Q31234R1M), and Level-III Standardization Certification for Safety Production (Liaoning Emergency Evaluation No. [2023] 178). In 2025, it was selected into Liaoning Province’s “Specialized, Refined, Distinctive, and Innovative” Small and Medium Enterprise Incubation Database (Liaoning Industry and Information Technology Notice No. [2025] 102). Representative achievements include supplying bromine raw materials continuously for seven years to 12 A-share listed chemical enterprises—including Jiangsu Yangnong, Shandong Tiancheng, and China Agrochemical & Pharmaceutical—with a 100% contract fulfillment rate. Currently, its business is entirely focused on the domestic market; publicly available information does not indicate direct overseas sales, overseas engineering deliveries, or international certifications (e.g., REACH, FDA). However, its products, after downstream processing, are indirectly exported to India, Brazil, and Southeast Asian countries. The company can support cross-border industrial chain collaboration through technical synergy, joint supply of raw materials, and alignment with international standards.

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 Longyuan Gas Polytron Co., Ltd. (Securities Abbreviation: Longyuan Gas; Securities Code: 874396) is a national high-tech enterprise established in 2003 and headquartered in Pulandian District, Dalian City, Liaoning Province. The company specializes in the research and development, production, filling, testing, and supporting services of electronic specialty gases and industrial gases, operating within the electronic specialty gases subsector of the chemical raw materials and chemical products manufacturing industry. Its core business encompasses customized supply of high-purity electronic-grade specialty gases (e.g., hydrogen chloride, boron trichloride, hexafluoroethane, carbon tetrafluoride, silane, etc.) and industrial gases such as oxygen, nitrogen, and argon, along with integrated services including gas analysis and testing, gas cylinder inspection, and application technical support. Its products are widely applied in high-end manufacturing sectors such as semiconductors, LEDs, photovoltaics, and flat-panel displays. The company has established a provincial-level enterprise technology center and the Dalian Municipal Electronic Specialty Gases Engineering Technology Research Center. It holds six invention patents and over 20 utility model patents, and has participated in formulating two national standards, including “Gases for Electronic Industry—Hydrogen Chloride” (GB/T 37883-2019). The company has obtained certifications for the three major management systems—ISO 9001, ISO 14001, and ISO 45001—and holds all statutory licenses, including the “Safety Production License for Hazardous Chemicals,” “Loading License for Mobile Pressure Vessels,” “Gas Cylinder Filling License,” and “Radiation Safety License.” Its high-purity hydrogen chloride product achieves a purity of 99.9999% (6N), with impurity control capability at the parts-per-trillion (ppt) level. It has commenced mass supply to multiple domestic 12-inch wafer fabrication plants and packaging & testing enterprises, serving customers including Semiconductor Manufacturing International Corporation (SMIC), JCET Group, China Resources Microelectronics, Tongfu Microelectronics, and NAURA Technology Group. Currently, its production capacity is centered on its headquarters base in Dalian, providing services across East China, North China, and Northeast China, and offering multi-dimensional cooperation to high-end manufacturing enterprises—including supply of electronic specialty gases, customized gas solutions, testing and analytical services, and technical collaboration support.

Dalian Jinzhou Kunda Paint Factory is located in Jinzhou District, Dalian City, Liaoning Province. It is an individually operated business established in 2005 and currently listed as “in operation” in official registration records; however, it has been continuously included on the List of Enterprises with Abnormal Operations since July 2023. Its primary business involves the sale and processing (limited to branch operations) of coatings (excluding hazardous chemicals), supplemented by trading in construction and decoration materials as well as hardware, electric, and electronic products. Publicly available information indicates no record of established branches, a long-standing zero-employee social insurance enrollment count, and failure to submit annual reports for four consecutive years (2022–2025). No records regarding production qualifications, environmental permits, industry certifications, intellectual property, or technological achievements are found on authoritative platforms including the National Enterprise Credit Information Publicity System, the Ministry of Ecology and Environment’s Emission Permit Platform, the China Coating Industry Association Directory, or the China Patent Publication and Announcement Network. Its core business focuses on trade and simple processing of general-purpose architectural and industrial protective coatings, primarily serving local small- and medium-sized construction and decoration projects, routine maintenance of general industrial plants, and regional building material distribution channels; there is no publicly verifiable evidence indicating its participation in high-barrier application scenarios such as coal chemical engineering, petrochemicals, fine chemicals, new materials, or environmental protection engineering. Regarding core capabilities, publicly available information does not indicate autonomous process package development, EPC project delivery, complete equipment manufacturing, integrated automation control systems, specialized equipment design and manufacturing, or professional operation and maintenance technical service capabilities; nor does it disclose specific implementation scopes or delivered case examples related to heat/cold exchange equipment, separation equipment, electrical/electromechanical systems, or supply chain integration. Concerning standards and qualifications, no valid publicly available credentials are found, including ISO management system certifications, hazardous chemical registration certificates, work safety production licenses, Ministry of Industry and Information Technology (MIIT) coating industry access qualifications, High-Tech Enterprise status, or “Specialized, Refined, Distinctive, and Innovative” enterprise recognition. No publicly disclosed typical performance records exist—including project names, client identifiers, or facility-level delivery documentation—and no details are provided regarding specific project types, scale metrics, or deliverables. Regarding international and regional presence, publicly available information shows no cross-border business activities, overseas project deliveries, multilingual technical adaptation capabilities, or consortium collaboration experience. The enterprise’s currently verifiable operational substance is confined to regional circulation and basic processing of non-hazardous coatings; cooperation modalities are limited exclusively to spot purchases, custom color-matching, and localized small-batch supply. Platform users seeking engagement must rigorously verify its actual performance capability and on-site processing conditions.

Dalian Smiler Electromechanical Equipment Co., Ltd. is located at Room 204, Government Cultural Comprehensive Building, No. 189, Shannantou Village, Heidao Town, Zhuanghe City, Liaoning Province. The company operates in the specialized equipment manufacturing sector—specifically, industrial automatic control system apparatus manufacturing (C3425)—and focuses on industrial automation control system integration and the R&D and manufacturing of intelligent electromechanical equipment. It is currently in a stage of scaled application and deepened regional market development. Its core business covers heavy industrial sectors including coal chemical industry, metallurgy, port logistics, and power energy, providing customized mechatronic solutions for bulk cargo terminal belt conveyor systems, mine belt transport lines, and power plant coal-handling systems. Its core competencies center on real-time closed-loop control algorithm development and engineering implementation under multi-variable coupled operating conditions; it possesses independent capabilities in design, complete set manufacturing, and technical service delivery for electro-hydraulic servo control systems, intelligent tension control equipment, and interference-resistant industrial fieldbus communication modules. Representative products include the SMC-series multi-axis synchronized tension controllers, SME-type high-response electro-hydraulic proportional valve groups, and adaptive deviation-correction systems for quay cranes’ trolleys. These products support the OPC UA protocol and are compatible with mainstream MES/SCADA platforms; their underlying hardware employs domestically developed Phytium processors and the Kylin operating system. The company holds ISO 9001:2015 and ISO 14001:2015 certifications, possesses the “Special Equipment Production License” (for installation, repair, and modification of lifting machinery), and has received factory approval from China Classification Society (CCS); some products have obtained CE certification (EN 61800-5-1:2017). It owns three invention patents, twelve utility model patents, and eight software copyrights. Representative projects include: delivering an intelligent belt conveyor tension regulation system to Anshan Iron and Steel Group’s Qidashan Iron Mine (covering eight main transport lines, reducing belt breakage incidents by 92%); completing the intelligent transformation of the coal-handling system at Huaneng Yingkou Power Plant (achieving 18.7% energy savings per system and receiving special support from Liaoning Province’s intelligent manufacturing program); and delivering the Phase II container terminal at Dalian Port. Internationally, the company conducts business primarily via equipment exports: in 2023, it supplied one customized electrical control system each to Hongji Port in Vietnam and Talahan Power Plant in Indonesia; international revenue accounts for approximately 6.3% of total revenue, and the company supports collaboration models combining technology licensing with engineering implementation.

Dalian Lingqing Chemical Factory is a sole proprietorship established in 2001 and continuously operating for over twenty-three years. Its registered address is located in Ganjingzi District, Dalian City, Liaoning Province. The enterprise has long specialized in the wholesale and retail of chemical products (excluding hazardous chemicals), hardware-electric appliances, building materials, and metal materials. Based on a stable supply chain and regional market service capability, it provides compliant and practical general-purpose chemical auxiliary materials and basic construction material supporting products to local industrial customers and construction-related entities. Its business activities are strictly confined to the non-hazardous chemical category. Currently, the enterprise offers standardized procurement support and logistics coordination services for chemical auxiliary materials and construction materials to manufacturing supporting enterprises, small- and medium-sized construction engineering units, and industrial and trading enterprises within the region. Cooperation models include routine supply, customized product selection, and bulk direct supply.

Dalian Mingzhu Architectural Design Co., Ltd. is a regional Class-B architectural design enterprise based in Dalian, specializing in full-lifecycle design services for civil buildings. It is legally established and operational, with core business activities encompassing conceptual design, construction drawing design, interior design, and related technical consulting services for residential, commercial, and office buildings. The company operates within the construction industry, specifically under the subsector of building decoration and other construction-related activities. It holds statutory qualifications to undertake architectural design projects for medium-sized and smaller civil engineering works, and possesses the “Engineering Design Qualification Certificate” (Class-B for Architectural Engineering within the Architectural Industry), issued and approved by the Department of Housing and Urban-Rural Development of Liaoning Province, valid until 2027. Its primary clients consist of small- and medium-sized real estate development enterprises and self-built property owners in the Dalian region; its project experience is concentrated in Dalian and covers the entire design process—from preliminary conceptualization through to construction drawing implementation. The company maintains stable operations, with no record of serious violations or untrustworthy conduct listed on the National Enterprise Credit Information Publicity System, and its business status is registered as “in operation.” Regarding technical capabilities, publicly available information indicates that its services span all standard design phases for conventional civil buildings, but does not reflect extended service capacities such as super-limit high-rise building design, three-star green building certification, full-process BIM application, or EPC (Engineering, Procurement, and Construction) general contracting. Furthermore, there are no publicly documented records indicating participation in national or industry standard formulation, nor ownership of authorized invention patents or software copyrights. Currently, collaboration may be pursued via design commissioning, technical cooperation, or consortium participation—suitable for design requirements aligned with Class-B qualification criteria, emphasizing strong local proximity, practical feasibility of design solutions, and responsive localized service delivery.

Dalian Jinzhou Kunda Paint Factory is located in Jinzhou District, Dalian City, Liaoning Province. It is an individually operated business established in 2005 and currently listed as “in operation” in official registration records; however, it has been continuously included on the List of Enterprises with Abnormal Operations since July 2023. Its primary business involves the sale and processing (limited to branch operations) of coatings (excluding hazardous chemicals), supplemented by trading in construction and decoration materials as well as hardware, electric, and electronic products. Publicly available information indicates no record of established branches, a long-standing zero-employee social insurance enrollment count, and failure to submit annual reports for four consecutive years (2022–2025). No records regarding production qualifications, environmental permits, industry certifications, intellectual property, or technological achievements are found on authoritative platforms including the National Enterprise Credit Information Publicity System, the Ministry of Ecology and Environment’s Emission Permit Platform, the China Coating Industry Association Directory, or the China Patent Publication and Announcement Network. Its core business focuses on trade and simple processing of general-purpose architectural and industrial protective coatings, primarily serving local small- and medium-sized construction and decoration projects, routine maintenance of general industrial plants, and regional building material distribution channels; there is no publicly verifiable evidence indicating its participation in high-barrier application scenarios such as coal chemical engineering, petrochemicals, fine chemicals, new materials, or environmental protection engineering. Regarding core capabilities, publicly available information does not indicate autonomous process package development, EPC project delivery, complete equipment manufacturing, integrated automation control systems, specialized equipment design and manufacturing, or professional operation and maintenance technical service capabilities; nor does it disclose specific implementation scopes or delivered case examples related to heat/cold exchange equipment, separation equipment, electrical/electromechanical systems, or supply chain integration. Concerning standards and qualifications, no valid publicly available credentials are found, including ISO management system certifications, hazardous chemical registration certificates, work safety production licenses, Ministry of Industry and Information Technology (MIIT) coating industry access qualifications, High-Tech Enterprise status, or “Specialized, Refined, Distinctive, and Innovative” enterprise recognition. No publicly disclosed typical performance records exist—including project names, client identifiers, or facility-level delivery documentation—and no details are provided regarding specific project types, scale metrics, or deliverables. Regarding international and regional presence, publicly available information shows no cross-border business activities, overseas project deliveries, multilingual technical adaptation capabilities, or consortium collaboration experience. The enterprise’s currently verifiable operational substance is confined to regional circulation and basic processing of non-hazardous coatings; cooperation modalities are limited exclusively to spot purchases, custom color-matching, and localized small-batch supply. Platform users seeking engagement must rigorously verify its actual performance capability and on-site processing conditions.

Dalian Ziming Coatings Co., Ltd. was established in 2008, with its registered address located in Jinzhou District, Dalian City, Liaoning Province. It is a private enterprise specializing in the research and development, production, and sales of industrial protective coatings. The company’s core business covers the production and sales of a full range of products, including solvent-based and water-based industrial coatings, anti-corrosion coatings, floor coatings, marine coatings, and steel structure anti-corrosion coatings. Its products are widely applied to corrosion protection coating requirements in fields such as equipment manufacturing, port facilities, energy infrastructure, and general industrial plants. The enterprise possesses stable independent R&D and production capabilities, strictly adheres to national standards such as GB/T 38597-2020 “Technical Requirements for Low Volatile Organic Compound Content Coating Products,” and has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q31234R1M, valid until October 2025). Its production site is located in Sanshili Village Subdistrict, Dalian Jinhua New Area, and it holds a valid Dangerous Chemicals Production Safety Permit (Liaoning WH Anxu Zheng Zi [2021] No. 020064, valid until 2027), ensuring compliant and safe large-scale supply capability. The number of employees covered by social insurance remains steadily within the range of 20–30 (data from 2023–2024), classifying the enterprise as a well-regulated, creditworthy small-to-medium-sized manufacturing entity. Its business operations cover Northeast China, primarily serving local and regional industrial enterprise customers, and it can provide customized coating solutions, technical support, and bulk supply cooperation for engineering projects.

Dalian Xueshan Refrigeration Equipment Manufacturing Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and system integration of refrigeration equipment, operating within the specialized equipment manufacturing sector—specifically, the refrigeration and air-conditioning equipment manufacturing subsector. The company’s core business encompasses the design, production, sales, installation, and technical service of freezing equipment, refrigerated storage equipment, quick-freezing equipment, refrigeration units, heat exchangers, cold-storage panels, and associated automated control systems. Its products and solutions primarily serve customers in industries including food processing, cold-chain logistics, pharmaceutical warehousing, and deep processing of agricultural products. Leveraging years of engineering experience, the company possesses independent capabilities to enhance low-temperature quick-freezing heat-transfer efficiency and to implement energy-saving condenser waste-heat recovery technologies. It provides customers with customized medium- and low-temperature industrial refrigeration equipment and comprehensive solutions. Representative projects include custom-designed double-spiral quick-freezing machine systems for multiple aquatic product processing enterprises in Liaoning Province and an integrated prefabricated low-temperature cold-storage solution (−25°C) for regional cold-chain centers across Northeast China. The company holds a Special Equipment Production License (Pressure Pipeline Components Manufacturing; License No.: TS2721087-2027), possesses Grade III professional contracting qualification for electromechanical equipment installation projects (valid until 2026), and has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q31234R1M; valid until November 2025); its Environmental Management System and Occupational Health and Safety Management System remain continuously effective. As a small- to medium-sized refrigeration equipment manufacturer rooted in Northeast China, the company adopts mature refrigeration cycle system integration and engineering adaptation optimization as its core technical approach, maintaining stable project implementation experience and a solid customer base within the region. It offers industry clients diversified cooperation models, including equipment supply, system integration, installation and commissioning, and full-lifecycle technical services.

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.

Dalian Lonsin New Materials Co., Ltd. was established in 2007, with its registered address located in the Dalian Changxing Island Economic Zone, Liaoning Province. It is a high-tech enterprise specializing in the research, development, production, and sales of high-performance silicone materials. The company’s core business includes R&D, manufacturing, and technical services for silicone monomers and intermediates, silicone oils, silicone rubbers, silicone resins, and other new materials. Its flagship product—“low-VOC, high-compatibility methyl vinyl silicone rubber”—has been included in the “2023 Liaoning Province Key New Materials First-Batch Application Demonstration Guidance Catalogue” and is widely applied in fields such as sealing components for new-energy vehicle battery packs and protective coatings for 5G communication equipment. The company possesses core technological capabilities including hydrosilylation addition with directional catalysis, controllable side-chain functional group grafting, and construction of halogen-free flame-retardant silicone rubber composite systems. It holds four invention patents and nine utility model patents, and has established the Liaoning Provincial Engineering Technology Research Center for Functional Silicone Materials. In collaboration with the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, and Qingdao University of Science and Technology, the company has jointly established laboratories and undertakes the Liaoning Provincial Key R&D Program project titled “Key Technology Development for Silicon-Based Elastomers Used in High-End Electronic Packaging.” The company has obtained ISO 9001:2015 Quality Management System Certification and has been certified as a Level-III Standardized Enterprise for Safety Production (Liaoning Emergency Evaluation No. [2022] 076). Representative customers include Contemporary Amperex Technology Co., Limited (CATL), BYD Electronics, AVIC Optoelectronics, and second-tier suppliers designated by Wacker Chemie AG (Germany). Its products are exported to South Korea, Vietnam, and Mexico; overseas revenue accounted for approximately 28% of total revenue in 2024. The company engages in sales of chemical products (excluding hazardous chemicals) and conducts self-operated and agency import/export of various goods and technologies. It provides diversified cooperation models—including customized R&D, technology transfer, bulk supply, and joint technological breakthroughs—to upstream and downstream industrial chain partners.