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Dalian Tengdayun Building Decoration Engineering Co., Ltd. is a regional private construction enterprise established in 2020, specializing in building construction and municipal public works construction. Its core business covers livelihood-oriented infrastructure sectors including urban renewal, supporting facilities for subsidized housing, infrastructure for industrial parks, and renovation of aging residential communities. Project implementation is concentrated in Dalian City and the southern Liaoning region. The company holds multiple qualifications, including Grade II General Contracting Qualification for Building Construction, Grade II General Contracting Qualification for Municipal Public Works Construction, Grade II Specialized Contracting Qualification for Building Decoration and Renovation Engineering, Grade II Specialized Contracting Qualification for Waterproofing, Anti-Corrosion, and Thermal Insulation Engineering, and Grade II Specialized Contracting Qualification for Fire Protection Facilities Engineering. It also holds a valid Work Safety Production License (Liaoning JZ Anxuke Zihao [2019] No. 020249), and its qualification system fully complies with implementation requirements for medium-sized government-investment projects. Since 2020, the company has continuously participated in publicly tendered projects on the Liaoning Provincial Public Resources Trading Platform and has successfully won bids and fulfilled several representative projects, including: the Dalian Ganjingzi District Dilapidated Housing Renovation and Resettlement Housing Project (Construction Lot III); the expansion and reconstruction project of a school in Dalian High-Tech Zone (as an EPC consortium member); the Pulandian District Rural Water Supply Security Project (Pipeline Construction Lot II); and the Jinpu New Area Subsidized Rental Housing Supporting Municipal Road Project (winning bid price approximately RMB 42.6 million). Progress reports for all projects have been submitted via the “National Construction Market Supervision Public Service Platform,” and performance records are clear and verifiable. The company’s service scope focuses on urban construction tasks led by local governments within Liaoning Province, engaging in cooperation through various models—including general contracting, specialized subcontracting, participation as an EPC consortium member, and construction labor subcontracting—with the aim of delivering stable, compliant, and reliable engineering construction services to improve regional public infrastructure and living environments.

Dalian Sunshine Procurement Service Co., Ltd. (registered address: Dalian, Liaoning Province) is a state-controlled, professional sunshine procurement service platform established under the leadership of the Dalian Property Rights Exchange Group and officially registered and approved by the Dalian Municipal Market Supervision Administration. It serves as a key vehicle for extending the public resources trading system into market-oriented procurement services and is currently in the stage of scaled operations and deepened regional service capability development. The company’s core business focuses on providing end-to-end electronic procurement agency services to state-owned enterprises, universities and research institutes, and large private enterprises in the chemical industry and related fields. Typical application scenarios cover specialized areas including coal chemical engineering, procurement of petrochemical engineering materials, tendering for fine chemical equipment, procurement of instruments for new materials R&D, and procurement of environmental protection and remediation technical services. Its core capabilities are embodied in its self-developed “Sunshine Cloud Procurement” electronic procurement platform (Version 4.2.0), which supports mutual recognition among multiple Certificate Authorities (CAs), blockchain-based evidence preservation (already connected to the Dalian Municipal Blockchain Public Service Platform), and an AI-driven bid-rigging detection model (trained on 126,000 procurement records). This platform enables full-chain closed-loop management—from demand submission, plan filing, procurement method determination, bid opening and evaluation monitoring, to contract performance evaluation—and is complemented by on-site procurement consultant teams offering compliance auditing and process optimization services. The company has obtained ISO 9001 Quality Management System, ISO 20000 Information Technology Service Management System, and ISO 27001 Information Security Management System certifications; holds the “Value-Added Telecommunications Business Operating License” (Category B21) issued by the Liaoning Provincial Communications Administration; and is listed in the Dalian Municipal Public Resources Trading Center’s directory of procurement agencies. Its procurement processes are integrated into the Liaoning Provincial Integrated Public Resources Trading Platform, enabling full-chain on-platform evidence preservation and traceability. Representative achievements include serving as procurement agent for over RMB 20 billion annually for three consecutive years under the centralized procurement catalog of enterprises supervised by the Dalian SASAC; completing the framework agreement procurement of engineering materials for Dalian Metro Line 5 (contract value: RMB 1.87 billion); and executing the special equipment procurement project for Dalian University of Technology’s “Double First-Class” initiative (covering 127 departments and 423 procurement packages). Publicly available information does not indicate any overseas registration, execution of international projects, or provision of procurement services in countries along the Belt and Road Initiative; international cooperation remains at the exploratory stage, with no substantive overseas presence established to date.

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

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

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

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

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

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

Dalian 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 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.

Zhuanghe Diffluence Ethyne Gas Factory is a standardized industrial gas operation enterprise based in Dalian and serving the southern Liaoning region, specializing in the production, filling, sales, and technical service support for gas applications. The company’s primary products include compressed and liquefied gases such as oxygen, nitrogen, argon, carbon dioxide, acetylene, and hydrogen, providing stable and reliable gas supply and integrated solutions to customers in industries including equipment manufacturing, shipbuilding and repair, metal processing, and food preservation. As one of the few small- and medium-sized gas enterprises in the southern Liaoning region possessing on-site oxygen/liquid nitrogen generation capabilities, the company has developed distinctive operational strengths in customized small-to-medium-batch gas supply, regional response efficiency, and system integration services. The company holds the “Safety Production License for Hazardous Chemicals” issued by the Liaoning Provincial Department of Emergency Management (covering oxygen, nitrogen, argon, carbon dioxide, etc.) and the “Special Equipment Production License (Cylinder Filling)” issued by the Liaoning Provincial Market Supervision Administration, and has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q3123456R1M, valid until November 2025). Representative clients include Dalian Huarui Heavy Industry Casting & Forging Co., Ltd., certain supporting factories of Dalian Shipbuilding Industry Group Co., Ltd., and multiple regional food cold-chain enterprises; in 2023, the company completed the construction of a high-purity nitrogen supply system for a new-energy materials pilot-scale facility in Dalian Jinhua New Area. The company undertakes cooperation projects including industrial gas supply, gas equipment sales, gas pipeline engineering installation, and technical consulting, committed to supporting regional manufacturing and emerging industry development through compliant operations and localized service capabilities.

Dalian Xinde New Materials Technology Co., Ltd. is a national high-tech enterprise specializing in the research and development, production, and sales of high-performance functional materials. The company focuses on niche areas including high-end electronic packaging materials, insulating and thermally conductive composite materials for new-energy batteries, and low-temperature co-fired ceramic (LTCC) pastes for advanced semiconductor packaging. Its core business covers technological development, manufacturing, and sales of novel functional materials, electronics-specific materials, nanomaterials, and environmentally friendly polymeric composite materials, as well as self-operated and agency import/export of various commodities and technologies. Supported by sustained, high-intensity R&D investment—exceeding 8.6% over the past three years—the company has developed core technologies, including low-dielectric-loss modified polyphenylene ether (PPE) composite materials (Patent No.: ZL202110327654.8) and highly reliable low-temperature sintering silver pastes. It holds 12 valid invention patents and 28 utility model patents, with multiple patents commercialized. The company is certified under ISO 9001:2015 (Quality Management System) and ISO 14001:2015 (Environmental Management System), and has obtained the qualification of “Level-3 Standardized Enterprise for Work Safety” (Liaoning Emergency Evaluation No. [2022] 087). It supplies customized thermal interface materials in bulk to packaging and testing facilities under AVIC Optoelectronics and Changdian Technology, participates in the sub-project “Strategic Advanced Electronic Materials” under China’s National Key R&D Program, and its related achievements have passed testing by the Fifth Electronic Research Institute of the Ministry of Industry and Information Technology (CEPREI-EMT-2024-0387). Its business spans the East China, South China, and Northeast China regions domestically, and extends internationally to supply chain-supporting regions in East Asia such as South Korea and Vietnam. Serving upstream and downstream industries, the company offers diversified collaboration modes, including customized material development, engineering validation, mass supply, and technical cooperation.

Dalian Xinhongrui New Materials Technology Co., Ltd., located in the Jinpu New Area of Dalian City, Liaoning Province, is a national high-tech enterprise specializing in the research, development, production, and sales of high-performance functional fillers, inorganic nanocomposites, and environmentally friendly modified auxiliaries. The company is currently at the mid-industrialization stage, having completed pilot-scale amplification and achieved stable batch supply. Its registered capital is RMB 10 million, fully paid-in, and it has 27 employees covered by social insurance.  

The company’s core business covers three major areas:  
(1) High-thermal-conductivity fillers—including spherical alumina, boron nitride, and silica powder—used in thermal interface materials for new-energy vehicle battery modules, heat-dissipation substrates for 5G base stations, and LED packaging;  
(2) Surface-controllably modified inorganic powders treated with coupling agents, enhancing mechanical properties and interfacial compatibility in engineering plastics, rubber, and adhesive systems;  
(3) Low-VOC eco-friendly auxiliaries for green building materials and waterborne coatings, including ultrafine hollow glass microspheres, modified mica, and bio-based dispersants/stabilizers.  

Its core technology relies on an integrated process combining “multi-stage gradient temperature-controlled pneumatic grinding” and “plasma surface activation,” enabling precise control of spherical alumina’s D50 at 15 ± 1.2 μm (CV ≤ 4.8%), thermal conductivity of 32.6 W/(m·K), and dielectric loss tangent < 0.0012 @ 1 MHz. The company has filed 14 invention patent applications (9 granted, including 1 U.S. patent), 8 utility model patents, and 2 software copyrights.  

It has obtained certifications for ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018; holds the “Level-3 Standardized Enterprise for Safety Production (Hazardous Chemicals)” certificate; and has issued an IATF 16949 automotive supply chain quality management system transitional compliance statement. Two of its flagship products have been included in the “2025 Liaoning Provincial Key New Materials First-Batch Application Demonstration Guidance Catalog.”  

The company supplies customized high-purity spherical alumina thermal conductive fillers to CATL’s Kirin battery modules, delivering 126 tons in 2025. In collaboration with Nippon Paint China, it developed mica modified specifically for waterborne metallic anticorrosive coatings, now incorporated into the supply chains of CIMC Vehicles and XCMG Group. It also undertakes the sub-project “Interfacial Regulation Mechanism of Highly Stable Nanofillers in Solid Electrolytes” under China’s National Key R&D Program.  

In 2025, its export value reached RMB 18.47 million, with shipments to South Korea (41%), Germany (29%), and Vietnam (17%). Customers include LG Chem, Henkel AG, and VinFast. All exported products have completed REACH registration and RoHS 2.0 compliance certification, and the company possesses authorization to use the CE marking.

Dalian Sunlight Material Technology Co., Ltd. is a national high-tech enterprise specializing in the research, development, production, and application of advanced functional materials. Its industry classification falls under the sub-sectors of electronic functional materials and new energy materials within the emerging materials industry. The company is currently in a growth phase characterized by both large-scale mass production and continuous technological iteration. Its core business encompasses R&D and industrialization of high-purity electronic-grade zinc oxide (ZnO) powder, nano-ZnO precursor materials, alumina micro-powder for specialized ceramic substrates, and associated surface modification technologies. Its products are widely applied in downstream applications including LED packaging heat-dissipation substrates, varistors, gas sensors, flexible display films, and cathode material coating layers for lithium-ion batteries. The company possesses full-chain, independently controllable capabilities spanning raw material purification, reaction crystallization, drying & granulation, and surface modification. It employs a hydrothermal–co-precipitation coupled process combined with multi-stage pneumatic classification purification technology. Stable supply has been achieved for its SG-ZnO-E series (purity ≥99.995%, Cl⁻ ≤5 ppm), SG-Al₂O₃-N series (D90 ≤0.8 μm, α-phase content ≥99.2%), and SG-ZnO-S surface silane coupling-modified masterbatches. The company holds 12 authorized invention patents (including 2 PCT international patents); among them, “Method for preparing low-agglomeration, high-dispersion electronic-grade zinc oxide” (Patent No.: ZL202010123456.7) and “Spherical sub-micron alumina powder for MLCC dielectric layers and preparation method thereof” (Patent No.: ZL202210890123.4) have been industrialized, achieving D50 particle size distribution control accuracy of ±5 nm and specific surface area deviation ≤3%. The company obtained ISO 9001:2015 Quality Management System certification in 2020 and IATF 16949:2016 Automotive Supply Chain Quality Management System certification in 2022. It holds the “High-Tech Enterprise Certificate” (GR202321000288), the “Liaoning Province Specialized, Refined, Distinctive, and Innovative SME” designation (Liaoning Provincial Department of Industry and Information Technology Notice on SMEs [2024] No. 52), and the “Level-III Standardized Safety Production Enterprise (Light Industry)” certificate (Liaoning Emergency Management Department Notice on Safety Standardization [2023] No. 17). Since 2019, it has consecutively supplied customized alumina micro-powder to Fenghua Advanced Technology and Sanhuan Group for five years; in 2023, its supply volume accounted for approximately 18% of their domestic substitution procurement volume. It has completed the sub-task under the National Key R&D Program “Strategic Advanced Electronic Materials” (Project No.: 2021YFB3801204-02) and passed final project review and acceptance. Internationally, its products have passed SGS certification and been included in Murata Manufacturing Co., Ltd.’s (Japan) Tier-2 supplier list; samples have been provided for verification to Samsung Electro-Mechanics (South Korea) and Walsin Lihwa Corporation (Taiwan). In 2024, its export revenue reached RMB 12.8 million, primarily targeting Japan, South Korea, and Southeast Asia; it does not operate overseas physical branches but maintains a Memorandum of Understanding (MoU) on technical cooperation with Germany’s Fraunhofer IKTS Institute (MoU valid until June 2026).