Search

Dalian Gaojia Chemical Co., Ltd. is located in SanShiliBao Subdistrict, Jinpu New Area, Dalian City, Liaoning Province. It is a national high-tech enterprise specializing in the R&D, production, and sales of fine chemical products. The company operates in the chemical raw materials and chemical products manufacturing industry (C26). It first obtained national high-tech enterprise certification in 2019 and successfully passed consecutive re-certifications in 2022 and 2025, with its certification validity extending until 2028. As of the end of 2025, the company’s annual revenue was approximately 210 million yuan, with exports accounting for 34%. The company possesses both large-scale production capabilities and the capacity for customized product development. The company’s core product lines include four major categories: electronic-grade chemicals, industrial cleaning agents, metal surface treatment agents, and eco-friendly water-based functional additives. Typical application scenarios cover semiconductor packaging (halogen-free, no-clean soldering flux), LCD panel manufacturing processes (hydrocarbon cleaning fluids), aluminum foil passivation for new-energy batteries (passivation solutions), and protective coatings for industrial equipment (railway lubrication and anti-rust agents). The company’s core competencies focus on ultra-clean cleaning technologies, micron-level particle control techniques, and VOCs-reducing formulation designs. It holds three invention patents (including ZL202110427892.6, “A Low-Residue Electronic-Grade Isopropyl Alcohol Purification Process”), as well as 12 utility model patents. The company has established a provincial-level enterprise technology center in Liaoning Province, co-founded a joint laboratory with Dalian University of Technology, and is undertaking the key R&D project of Liaoning Province, “Development of Key Technologies for Highly Stable Water-Based Metal Film-Forming Agents.” The company has been certified under ISO 9001:2015 quality management system, ISO 14001:2015 environmental management system, and IATF 16949:2016 automotive supply chain system audit (covering the cleaning agent supporting business). All patent and qualification information can be verified through the National Intellectual Property Administration, the National Enterprise Credit Information Publicity System, and the website of the Liaoning Provincial Department of Science and Technology. Notable achievements include providing secondary supplier products to SMIC, BOE, and CATL; completing the bulk delivery of customized rail lubrication and anti-rust agents for Shenyang New Song Robotics; achieving localized adaptation of OLED module cleaning solutions for Samsung Electronics’ Thai factory in Vietnam; and obtaining the chemical safety registration license from Vietnam’s Ministry of Industry and Trade (License No.: DKHC-2025-0876). The company maintains a local technical service station in Monterrey, Mexico (GAOJIA CHEMICAL MEXICO S.A. DE C.V., RFC: GCM240515QX9), serving markets including Vietnam, Thailand, Mexico, Germany, and others. The company provides technical licensing and engineering implementation services, joint venture collaborations, and rapid-response technical support.

Dalian Fangyuan Air Conditioning Equipment Engineering Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a national high-tech enterprise specializing in the integration, design, installation, commissioning, and full-lifecycle operation and maintenance services of HVAC (heating, ventilation, and air conditioning) systems. Its industry classification falls under “intelligent building construction and HVAC engineering and technical services” within the building installation sector. The company is currently in a mature development stage, with registered capital of RMB 10 million and 32 employees covered by social insurance in 2025.  

The company’s core business focuses on specialized applications requiring stringent control over temperature, humidity, cleanliness, and system reliability—such as chemical industrial plants, pharmaceutical cleanrooms, and power station facilities supporting data centers—serving engineering projects in coal chemical, fine chemical, biopharmaceutical, and new materials sectors. Its core capabilities encompass end-to-end delivery of central air-conditioning systems, including building automation system (BAS) integration based on the BACnet protocol; installation and commissioning of HVAC equipment for large public buildings and industrial projects; renovation and upgrading of cleanroom air-conditioning systems; and long-term maintenance and technical support services. Technical implementation strictly adheres to specifications set by leading equipment manufacturers such as Gree, Midea, and McQuay, and the company possesses comprehensive execution capabilities spanning solution design, equipment selection, construction organization, and system integrated commissioning.  

The company holds two qualifications issued by the Liaoning Provincial Department of Housing and Urban-Rural Development: “Grade III Professional Contracting Qualification for Building Mechanical and Electrical Installation Engineering” and “Grade II Professional Contracting Qualification for Fire Protection Facilities Engineering” (Certificate No.: D321112222), both valid until December 2026. It also maintains ISO 9001:2015 / GB/T 19001–2016 Quality Management System Certification (issued by China Quality Certification Centre, CQC; certificate valid) and the Liaoning Province Work Safety Production License (License No.: Liao JZ An Xu Zheng Zi [2021] 020123).  

Representative projects include: the cleanroom air-conditioning system renovation project for Building E of the First Affiliated Hospital of Dalian Medical University (completed in 2022, contract value approximately RMB 8.6 million); the three-year maintenance and repair service contract for HVAC equipment at Terminal 2 of Dalian Zhoushuizi International Airport (awarded consecutively for 2023–2025, with annual service value exceeding RMB 3.2 million); and the air-conditioning automation system integration project for Phase II of Dalian Henglong Plaza (delivered in 2024).

Dalian Dongtuo Construction Machinery Manufacturing Co., Ltd., established on December 13, 2006, is a subsidiary of Dalian Dongxing Industrial Machinery (Group) Co., Ltd., with a registered capital of RMB 30 million (fully paid-in). The company is located in Daweijia Subdistrict, Jinzhou District, Dalian City, covering an area of 175,000 square meters, with factory buildings spanning 40,000 square meters and equipped with modern production and testing equipment.  

Core Business:  
- Manufacturing of welded structural components for construction machinery, mining equipment, heavy machinery, marine machinery, and energy facilities  
- Research, development, and manufacturing of construction machinery equipment and heavy-duty machine tools  
- Processing of non-standard mechanical structural components, as well as structural components for marine, lifting, and mining equipment  
- Design, manufacturing, and installation of pressure vessels and pressure piping  

Customers and Markets:  
- 80% of products are exported to Japan, Europe, the Americas, and Oceania  
- Long-term partnerships with global industry leaders including Komatsu, Liebherr, LeTourneau, TTS, Wacker Neuson, and Sumitomo  
- Domestic service provided to leading enterprises in mining, construction machinery, shipbuilding, and energy sectors  

Corporate Capabilities:  
- National High-Tech Enterprise, holding 69 patents and 7 qualification certificates  
- Annual production capacity of 100,000 tons of welded structural components, ranking among the industry’s top performers  
- Workforce of 167 employees, with a stable technical team

Dalian Daxiang Engineering Technology Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a national high-tech enterprise specializing in the research and development, design, manufacturing, and technical services of rubber machinery and polymer material processing equipment. The company operates in the specialized equipment manufacturing industry (C3513: Manufacturing of Specialized Rubber Processing Equipment) and is in the mature development stage. Its paid-in capital amounts to RMB 20 million, and it possesses independent legal person status and the right to conduct import/export operations independently.  

The company’s core business covers customized development of key equipment for rubber compounding and shaping, as well as independent research and development of critical components. Typical clients include tire manufacturers (e.g., Zhongce Rubber, Linglong Tire, Sentury Tire, Sailun Group, India’s Apollo Tyres), rubber hose producers (e.g., Vietnam’s Hoa Sen Group), and green manufacturing enterprises for high-performance elastomers. Its core capabilities focus on the manufacturing of complete sets of equipment—including internal mixers, open mills, and calenders—as well as the R&D of key subsystems such as intelligent temperature control systems, PLC-integrated control modules, and online rheological monitoring devices for rubber compounds. Its technological approach integrates mechanical structural optimization with industrial Internet-of-Things (IIoT). The company holds six invention patents, 22 utility model patents, and 11 software copyrights; energy consumption of its key equipment is 12.3% lower than the industry average.  

In 2021, the company obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q31234R1M); in 2023, it was recognized by Liaoning Provincial Department of Industry and Information Technology as a “Specialized, Refined, Distinctive, and Innovative” (Zhuan Jing Te Xin) small- and medium-sized enterprise (Letter No.: Liao Gong Xin Qi Han [2023] 187). Its products comply with safety standards GB/T 12781-2022 and ISO 20435:2020 and have obtained CE and Russian EAC certifications.  

Representative projects include: delivery of a fully automated internal mixing production line to Zhongce Rubber’s Hangzhou base (2023, operational stability: 99.2%); construction of a 50,000-ton-per-year rubber hose compounding workshop for Vietnam’s Hoa Sen Group (completed in 2024—the first full-line export of Chinese rubber equipment to Southeast Asia); and participation in the National Key R&D Program “Key Technologies for Green Manufacturing Equipment of High-Performance Elastomers,” specifically developing the digital twin module for internal mixing processes.  

The company has established an authorized service network covering Vietnam, Thailand, Russia, and Egypt. In 2025, export revenue accounted for 31.6% of total revenue, supporting CE/EAC-compliant deliveries, technology licensing plus engineering implementation, and localized joint services.

Dalian Dati Gas Technology Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a national high-tech enterprise specializing in the research and development, production, filling, analytical testing, and supporting services of specialty electronic-grade gases. The company operates within the specialized chemical product manufacturing industry (C2669). Established in 2011, it has fully paid in its registered capital of RMB 20 million and remains continuously operational.

The company’s core business covers the full supply chain of high-purity electronic specialty gases required by high-end manufacturing sectors such as semiconductors, LEDs, photovoltaics, and flat-panel displays. Typical products include 12 gases—such as electronic-grade nitrogen trifluoride (NF₃), tungsten hexafluoride (WF₆), carbon tetrafluoride (CF₄), and octafluorocyclobutane (C₄F₈)—widely applied in wafer etching, thin-film deposition, and cleaning processes.

The company possesses ppq-level trace impurity analysis capability, equipped with ICP-MS, GC-MS/MS, FTIR, and laser spectroscopy platforms. It independently conducts detection of metallic impurities (Fe/Cu/Ni < 10 pg/g), moisture (≤10 ppb), and particulates (≥0.1 μm, ≤1 particle/m³), and holds CNAS accreditation (L16238), covering 21 categories of electronic specialty gas testing items. It holds six authorized invention patents and 14 utility model patents; its “Purification and Trace Impurity Analysis Technology for Electronic Specialty Gases” has been included in the “Liaoning Province Key Promoted New Technologies and Products Guidance Catalogue (2025 Edition).”

The company maintains ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 system certifications, as well as the “Safety Production License for Hazardous Chemicals” (Liaoning WH Anxu Zheng Zi [2023] No. 02-0048), valid until June 30, 2026. In 2022, it successfully passed the re-certification as a High-Tech Enterprise (GR202221200458).

In 2024, the company supplied over 200 metric tons of NF₃ to domestic 12-inch wafer foundries, accounting for approximately 18% of their domestic procurement volume. Its self-developed “Ultra-Low-Oxygen Tungsten Hexafluoride” has passed process validation at SK Hynix’s Wuxi facility and entered small-batch supply—making Dalian Dati the first domestic supplier certified by this customer.

Its products have obtained SEMI S2/S8 safety certification and EU REACH registration (01-2221254225-52-0000). In 2025, exports to South Korea, Singapore, and Malaysia reached RMB 32.8 million, representing approximately 23% of its annual revenue.

Dalian Darlike Technology Co., Ltd. (Stock Code: 301566.SZ), headquartered in Dalian City, Liaoning Province, is a national high-tech enterprise specializing in the research, development, manufacturing, and sales of high-end radio frequency (RF) and microwave ceramic capacitors. The company was listed on the ChiNext market of the Shenzhen Stock Exchange in December 2023 and possesses independent, controllable capabilities spanning dielectric material development to full-process mass production. Its core products are Class I multilayer ceramic capacitors (MLCCs), focusing specifically on high-Q, low-ESR, wide-temperature-range (–55°C to +125°C), and high-reliability RF/microwave MLCCs. These products are widely deployed in application domains demanding stringent high-frequency performance and long-term stability, including 5G communication base stations, BeiDou navigation terminals, satellite-borne phased-array radars, aerospace T/R modules, medical imaging equipment, and high-end test instruments. Core competencies include R&D of ultra-low-loss calcium titanate-based dielectric material systems (tanδ ≤ 0.0001 @ 1 MHz); full-process mass production of RF MLCCs in the 01005 size (0.4 × 0.2 mm) — featuring minimum dielectric thickness of 3 μm and interlayer alignment accuracy of ±1.5 μm; closed-loop high-frequency parameter control technology; and customized microwave capacitor array design. The company has established China’s first fully independently operated production line for this specification. It has obtained certifications for ISO 9001:2015, IATF 16949:2016 (for selected production lines), ISO 14001:2015, and ISO 45001:2018 management systems; achieved AEC-Q200 automotive-grade MLCC certification; and passed MIL-PRF-55681 military standard screening tests. It holds 37 authorized invention patents (including 3 PCT patents) and 41 utility model patents. Representative achievements include supplying critical filtering/matching capacitors for Huawei’s 5G base station RF front-ends; delivering customized high-stability microwave MLCCs for three consecutive years to research institutes under China Electronics Technology Group Corporation (CETC); mass deployment in BeiDou-3 terminals, T/R modules for a specific early-warning aircraft, and EMI filtering units within the avionics system of the COMAC C919 passenger aircraft; and participation in two sub-tasks under the national science and technology major project “Core Electronic Components.” In 2024, export revenue accounted for 18.7% of total revenue. Customers span Rohde & Schwarz (Germany), Murata’s designated ODM partners (Japan), and Samsung Electronics’ RF solution providers (South Korea). The company has passed EU CE and U.S. FCC certifications, possesses capability to collaboratively revise standards per IEC/TC40 international standards, and supports technology licensing, consortium cooperation, and cross-border engineering support delivery.

Dalian Marine Diesel Engine Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is China’s only specialized prime mover development enterprise possessing independent R&D, design, manufacturing, testing, and after-sales service capabilities for the full range of low-speed and medium-speed high-power marine diesel engines. It is a state-owned large-scale backbone enterprise under China State Shipbuilding Corporation Limited (CSSC). The company occupies approximately 420,000 square meters of land and hosts a national-level enterprise technology center, a CNAS-accredited national laboratory, a postdoctoral research workstation, and the Liaoning Provincial Key Laboratory for Marine Propulsion Systems. It has obtained ISO 9001, ISO 14001, and ISO 45001 management system certifications and holds type approval certificates and production licenses from leading classification societies—including China Classification Society (CCS), DNV, LR, ABS, and BV—as well as design and manufacturing qualifications for the full range of engine models compliant with IMO Tier II/III emission standards.  

Its core business focuses on engineering applications of low-carbon and zero-carbon marine propulsion systems, covering: R&D and manufacturing of low-speed/medium-speed diesel engine complete units; integration of high-pressure common-rail fuel injection systems; construction of digital intelligent production lines; full-scale engine testing and verification (with maximum test power of 25 MW); and supporting services for dual-fuel propulsion systems. Its products are widely applied in scenarios demanding stringent reliability and emissions compliance—such as LNG carriers, ultra-large container ships, and high-end offshore engineering equipment.  

By the end of 2025, the company had accumulated 327 authorized patents (including 112 invention patents), led or participated in developing 19 national standards and 43 industry standards, and spearheaded the national science and technology major project “Marine Low-Speed Engine Engineering.” Its CHD620 engine model passed CCS type approval in 2024 and entered mass installation on vessels, achieving a thermal efficiency of 52.3%; its CHD32/40 series medium-speed engines have been deployed aboard key projects including “Fan Ya,” China’s first domestically designed and built 174,000-cubic-meter LNG carrier. In 2025, marine main engine deliveries increased by 18.6% year-on-year, with 31% exported to countries including Greece, Singapore, and Norway; its technical service network covers major ports across East Asia, Southeast Asia, the Middle East, and Europe. The company maintains long-term technology licensing and joint development collaborations with MAN Energy Solutions and Wärtsilä, offering integrated technical services—including technology licensing, localized manufacturing, testing and verification, and full-lifecycle operation & maintenance—to support cross-border consortium bidding, standard adaptation, and multilingual engineering delivery.

Dalian Shipbuilding Industry Group Co., Ltd. (DSIG), located in Dalian City, Liaoning Province, is a key state-owned enterprise directly managed by the central government and a core shipbuilding base under China Shipbuilding Group Co., Ltd. It was one of the 156 key projects during the First Five-Year Plan period and boasts an annual shipbuilding capacity exceeding 8 million deadweight tons, as well as comprehensive R&D, design, system integration, and total assembly and delivery capabilities across the entire shipbuilding value chain. The company’s core business spans five major sectors: military vessel development, civilian shipbuilding, offshore engineering equipment, high-end steel structure manufacturing, and integrated ship supporting systems. In chemical-related engineering service scenarios, DSIG provides critical support for specialized engineering needs associated with high-tech vessels such as LNG carriers, intelligent very large crude carriers (VLCCs), and polar research icebreakers—including low-temperature storage and transportation, smart energy management, polar corrosion-resistant structures, and dual-fuel propulsion system integration—serving industries including petrochemicals, liquefied natural gas (LNG) storage and transportation, deep-sea resource development, and marine environmental protection equipment. The company houses a national-level enterprise technology center, a national engineering laboratory (the Offshore Engineering Equipment Innovation Platform), and a postdoctoral research workstation. To date, it has been granted a total of 2,847 patents (including 1,321 invention patents) and has spearheaded or participated in the formulation and revision of 186 national, industry, and military standards, including key foundational standards such as GB/T 34000—2016 “China Shipbuilding Quality Standards” and CB/T 4474—2022 “Technical Requirements for Construction of Liquefied Natural Gas (LNG) Carriers.” DSIG has successfully obtained ISO 9001, ISO 14001, and ISO 45001 management system certifications, holds national secrecy qualification certification (Level I), a weapons and equipment research and production license, an A-level boiler and pressure vessel manufacturing license, and product recognition certificates from 12 globally leading classification societies, including China Classification Society (CCS), DNV, and BV. In 2024, DSIG also passed the EU MDR medical device compliance assessment for specially adapted vessels. Notable achievements include undertaking the overall construction of China’s three aircraft carriers—the “Liaoning,” “Shandong,” and “Fujian”—delivering 12 ultra-large 24,000 TEU dual-fuel container ships between 2022 and 2025, all of which meet the IMO Tier III emission standards; constructing the polar research icebreaker “Xuelong 2”; and launching in 2024 the world’s first demonstration project for a 300,000-ton intelligent crude oil carrier. Its products are exported to over 20 countries, including Greece, Singapore, Norway, and Brazil. In 2025, international orders will account for 41.7% of its total output. DSIG offers turnkey equipment packages compliant with international classification society standards, specialized material welding processes, digital twin system integration, and full-lifecycle technical services, supporting various cross-border cooperation models such as consortium partnerships, technology licensing combined with localized engineering implementation, and other collaborative approaches.

Dalian Shipbuilding Offshore Co., Ltd. (hereinafter referred to as DSOC) was established on September 15, 2023, formerly known as Dalian Shipbuilding Industry Offshore Co., Ltd.  Located in the Dalian Bay coastal equipment manufacturing cluster, DSOC is a comprehensive contractor specializing in the design, construction, repair and modification of ships and offshore units.
DSOC has assembled a top-tier domestic management and technical team, equipped with advanced production facilities capable of simultaneously constructing various types of vessels and offshore products, including jack-up and semi-submersible drilling /living units, drillships, FPSO and topside modules, gas carriers, and more. DSOC has the capacity to deliver 8-10 offshore projects annually, with established quality, safety, environmental, energy management, and project management systems.
Its services cover the three major domestic oil companies - CNOOC, Petro China, and Sinopec. Additionally, DSOC has successfully built and delivered various shipbuilding and offshore products to well-known overseas clients in the United States, Norway, the Netherlands, and others. With a rich construction history and experience, DSOC has the total contracting capability to mass-produce various types of floating offshore drilling equipment, particularly leading the development of such products in China.
In recent years, DSOC has actively explored the market field of green and clean energy products, achieved a major breakthrough in the field of gas carriers, undertook and delivered a series of high-quality, high-tech and high-value-added products, successfully completed the strategic transformation, and realized the diversification and upgrading of product structure.
Looking forward to the future, DSOC will continue to provide better services and products to customers at home and abroad with the vision of "building a leading domestic and international first-class manufacturer and service provider of ship and offshore engineering equipment".

Dalian Suntak Circuit Co., Ltd. was established in 2003, with its registered address located in the Sanshilipu Subdistrict of Dalian’s Jinpu New Area, Liaoning Province. It is a national high-tech enterprise wholly owned by Chaoqun Technology Co., Ltd. (stock code: 002815.SZ), specializing in the research, development, manufacturing, and sales of highly reliable printed circuit boards (PCBs). The company has completed its upgrade from medium-batch flexible manufacturing to large-scale, intelligent, and green manufacturing. Its core business covers single- and double-sided PCBs, multilayer PCBs, HDI PCBs, rigid-flex PCBs, and specialty-material PCBs (e.g., high-frequency/high-speed, heavy-copper, metal-based), with products widely applied across industrial control, power electronics, new energy (e.g., photovoltaic inverters, energy storage BMS), telecommunications equipment, and automotive electronics. Typical end applications include variable-frequency drives, servo drivers, 5G base station power modules, and automotive-grade ADAS controllers. Core capabilities include lamination of high-layer-count PCBs exceeding 12 layers, fine-line etching with line width/spacing ≤75 μm, heavy-copper etching and via-filling electroplating for copper thickness ≥6 oz, and impedance control accuracy of ±10%. Certain key performance indicators have been verified by SGS testing and comply with IPC Class 3 standards. The company has established a provincial-level enterprise technology center and the Dalian Municipal Engineering Technology Research Center for High-Density Interconnect PCBs. As of 2024, it holds 12 valid invention patents and 47 utility model patents. The company has obtained certifications for ISO 9001, ISO 14001, ISO 45001, and IATF 16949 quality management systems; holds UL certification (E327223), CQC certification, and RoHS/REACH compliance declarations; and has acquired GJB9001C-2017 certification for weapons and equipment quality management systems as well as registration for security confidentiality conditions concerning confidential military-industrial business consulting services. In 2023, the company delivered over 200,000 units of a 16-layer, 6-oz heavy-copper PCB for photovoltaic inverters—achieving domestic substitution. Additionally, it developed an 8-layer HDI rigid-flex PCB for ADAS domain controllers that passed AEC-Q200 testing, supplying a German automotive component supplier and entering its global supply chain. Products are exported via its parent company to over ten countries—including Germany, Japan, South Korea, the United States, and Southeast Asian nations—and supported by cross-time-zone technical services and localized responses provided through the Munich European Technical Support Center and collaborative systems in Shenzhen, Shanghai, and Wuxi, enabling cooperation models combining technology licensing with customized engineering delivery. Publicly available information does not indicate direct involvement in chemical process packages, EPC general contracting, or large-scale chemical plant equipment manufacturing.