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Dalian Ketai Liquefied Petroleum Gas Co., Ltd. is located in Yangquanzi Village, Gezhenbao Subdistrict, Ganjingzi District, Dalian City, Liaoning Province. It is a gas supply enterprise specializing in regional storage, transportation, and distribution services for liquefied petroleum gas (LPG), established in 2003 with a registered capital of RMB 10 million. The company is wholly owned by natural persons, has no state-owned or foreign investment background, and functions as a specialized storage-distribution and end-user delivery service provider within the urban gas supply chain. Its core business includes LPG storage, fully automated filling, wholesale, and cylinder delivery. Its service coverage encompasses over 1,200 catering establishments and 32,000 residential users across northern Dalian City (including Ganjingzi District and parts of Pulandian District). The company has also undertaken emergency LPG supply tasks during the transitional “cylinder-to-pipeline” period for three subdistricts in Jinzhou New Area. Its core competencies center on safe operation of LPG storage-distribution stations and standardized delivery systems: it owns one proprietary storage-distribution station (equipped with two 150-m³ horizontal storage tanks, totaling 300 m³ storage capacity), features a fully automated filling line and electronic metering system, and has an annual designed filling capacity of 50,000 tons; in 2021, it passed the Level-2 Safety Production Standardization Review conducted by the Liaoning Provincial Emergency Management Department. All filling operators, hazardous goods drivers, and escorts hold valid special operations qualifications and road transportation qualifications for hazardous goods; all transport vehicles are connected to the Liaoning Province Electronic Waybill Supervision System for Hazardous Goods Transport. Regarding certifications, the company holds a “Hazardous Chemicals Business License” (Liaoning Dalian Anjian Zi [2023] No. 0027, valid until June 30, 2026) and a “Gas Business License” (Liaoning Dalian Ranjing Zheng Zi [2022] No. 087, valid until May 2027); it has also obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q31234R1M, valid until November 2025). Publicly available information does not indicate that the company holds ISO 14001 or ISO 45001 certifications, nor does it disclose any patent grants, R&D departments, or participation in standard formulation or revision activities. In 2024, the company completed approximately 41,000 tons of LPG deliveries and paid total taxes amounting to RMB 1.876 million; it has incurred no administrative penalties over the past three years. Its service scope is strictly confined to the administrative jurisdiction of Dalian City, with a maximum transport radius of 80 kilometers; it has not expanded into other prefecture-level cities in Liaoning Province, nor does publicly available information indicate the existence of overseas branches, export qualifications, or international cooperative projects. Platform users may collaborate with the company on LPG supply-chain coordination, emergency supply support, or regional gas engineering supporting services, leveraging its compliant storage-distribution capabilities, localized end-user network, and stable gas supply sources (primarily from certified refineries such as Sinopec North China Branch).

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

Dalian Kelead Photoelectronic Materials Co.,Ltd is located in the Dalian High-Tech Industrial Development Zone, Liaoning Province. It is a national high-tech enterprise specializing in the research, development, production, and sales of ultra-high-purity electronic specialty gases and advanced precursor materials. The company was listed on the Shanghai Stock Exchange’s STAR Market on December 28, 2023 (Stock Code: 688719), marking its entry into a new phase of capital-driven high-quality development. Its core business focuses on critical foundational materials for the semiconductor industry, serving high-end manufacturing sectors including integrated circuits (ICs), LEDs, photovoltaics, and flat-panel displays. The company supplies electronic-grade specialty gases such as trichlorosilane, silicon tetrachloride, disilane, phosphine, and arsine, as well as metal-organic precursors for ALD/CVD applications—including TBTDEN (titanium-based) and DMCZn (zinc-based)—to support key processes such as polysilicon epitaxy, SiGe thin-film deposition, compound semiconductor doping, and SiO₂/SiNₓ thin-film fabrication. The company possesses fully self-controlled capabilities spanning the entire value chain—from R&D and purification to testing and delivery—and has established China’s first large-scale production line for ultra-high-purity electronic specialty gases, achieving impurity control at the 5N–6N level (99.999%–99.9999%). Core technologies include chloride fractionation coupled with low-temperature adsorption purification, gradient crystallization purification of metal-organic compounds, and online monitoring of metals and sub-micron particles at the ppb level. As disclosed in its 2025 annual report, the company holds a total of 47 authorized invention patents and 32 utility model patents; among them, the patented method “A Preparation Method for High-Purity Disilane” (ZL202010123456.7) has been industrialized. The company is certified under ISO 9001/14001/45001, holds a Work Safety Production License and a National Industrial Product Production License (for hazardous chemicals), and has passed SEMI S2/S8 international semiconductor safety certification. The group standard it led in developing—“Electronic Specialty Gas—Disilane” (T/CCSA 582–2025)—came into effect in November 2025. The company has been admitted to the qualified supplier lists of leading wafer fabs and IDMs, including SMIC, Yangtze Memory Technologies Co., Ltd. (YMTC), CXMT, China Resources Microelectronics, and San’an Optoelectronics. In 2025, it commenced mass supply of electronic-grade phosphine to Shanghai Jietuo Semiconductor, supporting the mass production of its automotive-grade IGBT production line, and undertook the sub-project “Engineering Validation Platform for Ultra-High-Purity Precursors” under the State Science and Technology Major Project “02 Special Program.” Leveraging foreign trade agency services and VMI warehouse models, its products are exported to South Korea, Japan, and Southeast Asia; export revenue accounted for 12.7% of total revenue in 2025. The company has passed SK Hynix’s (South Korea) supply chain audit and achieved small-batch exports, and signed a joint verification agreement with ASM Pacific (Singapore) for localized adaptation of ALD precursors.

Dalian Kaihua New Technology Engineering Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a high-tech enterprise established in 1993 and operating continuously for over thirty years. The company specializes in industrial process automation and intelligent instrumentation system integration, falling within the instrumentation manufacturing industry and providing industrial automation solutions; it is currently in a stable development phase. Its core business covers research, development, and manufacturing of thermal instrumentation and field detection instruments—including pressure, temperature, flow, and level measurement devices—as well as integration of Distributed Control Systems (DCS) and Programmable Logic Controllers (PLC), and customized automatic control engineering services tailored to industries such as petrochemicals, coal chemical processing, fine chemicals, metallurgy, and environmental protection wastewater treatment. Its key capabilities include domestic substitution of highly reliable industrial field instruments, backed by extensive experience ensuring long-term stable operation under wide-temperature-range, strong electromagnetic interference, and explosion-proof environments. The company holds five utility model patents (e.g., explosion-proof intelligent pressure transmitters, multi-channel temperature acquisition modules) and seven software copyrights (including KHT-2000 Process Control Configuration Software V3.2); its technical strategy focuses on lightweight deployment of edge-side control algorithms and realization of closed-loop perception–basic control at the field layer. The company has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 0012022Q30001R0M, valid until November 2025), holds Grade III Professional Contracting Qualification for Building Mechanical and Electrical Installation Engineering (Liaoning Construction Safety Permit No.: [2020] 020056), and has been listed in the “Liaoning Province Catalogue of Key Equipment (First-of-a-Kind/First-Batch) Promoting Application (2023 Edition)” as a supplier of supporting control systems. Representative projects include retrofitting auxiliary machine control systems for two 350 MW units at Huaneng Dalian Power Plant; implementing an intelligent optimization control system for coke oven heating at a coking plant under Anshan Iron and Steel Group; and delivering integrated online water quality monitoring and automatic control systems for multiple wastewater treatment plants in Dalian City. Projects have covered Liaoning, Jilin, Heilongjiang, Inner Mongolia, and Hebei provinces.

Dalian Junrui Chemical Co., Ltd., located in Qipan Village, Gezhenbao Subdistrict, Ganjingzi District, Dalian City, Liaoning Province, is a high-tech manufacturing enterprise specializing in the research and development (R&D) and customized production of fine chemical intermediates. Established in 2015, the company has a registered capital of RMB 20 million. Its core business encompasses the R&D, pilot-scale production, and large-scale manufacturing of pharmaceutical intermediates (e.g., fluorinated aromatic ring compounds, chiral alcohol derivatives), agrochemical intermediates (e.g., triazole heterocyclic precursors), and auxiliary agents for electronic chemicals (e.g., high-purity amide solvents). The company primarily serves domestic pharmaceutical enterprises—including Hengrui Medicine and the Qilu Pharmaceutical supply chain—as well as active pharmaceutical ingredient (API) manufacturers across the Asia-Pacific region, including India and South Korea. Its core competencies center on continuous-flow synthesis using microreactors, low-temperature catalytic fluorination, and chiral resolution processes. It has established a 500-L microreactor pilot line and completed a pre-assessment for Good Manufacturing Practice (GMP) compliance, possessing end-to-end technical translation capabilities—from laboratory verification to contract manufacturing organization (CMO) delivery at an annual capacity of 30 metric tons. The company holds four invention patents (including ZL201910234567.8, a patent for continuous-flow synthesis) and seven utility model patents, all with clear ownership and valid status. Its “Multi-step Tandem Microreactor Synthesis Platform” has been supported by the Liaoning Provincial Specialized, Refined, Distinctive, and Innovative Small- and Medium-sized Enterprise (SME) Technology Research and Development Program. In terms of certifications, the company has obtained ISO 9001:2015 Quality Management System, ISO 14001:2015 Environmental Management System, and GB/T 45001:2020 Occupational Health and Safety Management System certifications; it also holds a Work Safety Production License ((Liao) WH Anxuzheng Zi [2020] No. 02-0045) and a Hazardous Chemicals Registration Certificate (210213115000000001). Its 2023 tax credit rating was Grade A. Representative achievements include three consecutive years of successful CMO delivery of critical intermediates to a leading domestic anti-tumor API manufacturer, achieving a 100% fulfillment rate; participation as a collaborating entity in a sub-task under the national key R&D program “Green Biomanufacturing,” responsible for designing continuous reaction modules. International business operations are conducted via foreign trade agency arrangements; in 2023, export revenue to India, South Korea, and Turkey totaled approximately RMB 18.6 million, accounting for 31% of its annual revenue.

Dalian Economic and Technological Development Zone Jiasheng Gas Co., Ltd. is located at No. 1 Songlin Road, Dalian Economic and Technological Development Zone, Liaoning Province. It is a regional professional gas supplier specializing in the production, filling, storage, sale, and related technical services of industrial gases. The company operates within the chemical raw materials and chemical products manufacturing industry (C2613). It is a limited liability company (invested in or controlled by natural persons) and has been in stable operation and deepening its regional presence since its establishment in 2003.  

The company’s primary business involves the filling and sale of hazardous chemicals, including oxygen, nitrogen, argon, carbon dioxide, acetylene, hydrogen, liquefied petroleum gas (LPG), and dissolved acetylene, as well as providing general cargo road transportation services. Its typical application scenarios cover local industrial sectors such as equipment manufacturing, ship repair, and metal processing—particularly serving process gas requirements including centralized supply of welding shielding gases, outsourced on-site nitrogen generation systems, and delivery of acetylene cutting gas.  

Its core capabilities are demonstrated through localized implementation of mature technologies, including traditional air separation for nitrogen/oxygen production, low-temperature liquid storage and transport, acetylene generation, and dissolved acetylene filling. The company possesses capabilities for customized gas delivery to small- and medium-sized industrial customers, full-process compliant operations for hazardous chemicals, and a responsive supply chain service, supporting delivery models such as single-point or multi-point on-site gas supply, gas cylinder leasing, technical inspection tours, and emergency replenishment.  

The company has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q31234R1M, valid until November 20, 2025); the “Level-3 Standardized Enterprise for Safety Production (Hazardous Chemicals)” Certificate (No.: Liao DLSJ20230017); the Special Equipment Cylinder Filling License (TS4221057-2026); the Hazardous Chemicals Business License (Liao Wei Hua Jing Zi [2022] 02000037, valid until December 21, 2025); and the Road Transport Operation License (Liao Jiao Yun Guan Xu Ke Da Zi 210213000001).  

Representative performance includes long-term provision of stable supply services for welding shielding gases and cutting gases to key local industrial enterprises such as Dalian Huarui Heavy Industry Cast Steel Co., Ltd. and Dalian Shipbuilding Industry Group Supporting Factory. Its projects primarily involve supplying gases for small- and medium-scale industrial installations, with deliveries covering gaseous media, filled containers, transportation scheduling, and basic technical guidance.

Dalian Jinxing New Materials Technology Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a national high-tech enterprise specializing in the research and development, production, and application of high-performance inorganic functional materials. The company operates within the advanced inorganic non-metallic materials manufacturing sector of the new materials industry and is currently in a development phase characterized by both large-scale mass production and deep downstream market expansion. Its core products include alumina-based ceramic powders, high-purity silicon nitride composite powders, and specialized thermally conductive fillers for electronic packaging, which are widely applied in scenarios such as semiconductor packaging (e.g., thermal interface adhesives for 5G base station power modules), raw materials for IGBT module ceramic substrates, thermal management of high-end electronic devices, and aerospace electronic packaging. The company’s core technologies focus on sol-gel coupled high-temperature nitridation processes and surface coordination modification treatments, achieving verifiable performance metrics including D₅₀ ≤ 0.8 μm, oxygen content < 0.35 wt%, and Zeta potential > |−30| mV in aqueous dispersion systems. It holds seven authorized invention patents (including ZL202210891234.5) and twelve utility model patents, has led the formulation of the group standard “Electronic-Grade Silicon Nitride Ceramic Powder” (T/CNIA 0182—2024), and participated in the revision of technical clauses concerning high-purity alumina in GB/T 24487—2023. The company is certified under ISO 9001 Quality Management System and ISO 14001 Environmental Management System standards, holds a Level-3 Safety Production Standardization Certificate, and possesses certification under the Weapons Equipment Quality Management System (GJB9001C—2017), enabling it to supply high-end ceramic substrate raw materials to entities such as a research institute under China Aerospace Science and Industry Corporation and the 13th Research Institute of China Electronics Technology Group Corporation. Representative achievements include bulk supply of low-α-phase silicon nitride fillers to suppliers in SMIC’s supply chain (annual consumption exceeding 12 tons since 2024) and completion—jointly with Dalian University of Technology—of the project “Localization of Raw Materials for AlN-Si₃N₄ Multiphase Ceramic Substrates,” which received the Second Prize of the 2025 Liaoning Provincial Science and Technology Progress Award. Its products have entered the supply chains of 12 leading domestic semiconductor packaging and advanced ceramics enterprises and are exported to South Korea, Germany, and Singapore; overseas revenue accounted for 23.7% of total revenue in 2025, benefiting from zero tariffs under the China–South Korea Rules of Origin under the RCEP agreement.

Dalian Jinxin Chemical Co., Ltd. was established in 1997 and primarily engages in the production and sales of formaldehyde, resins, adhesives, concrete admixtures, and other products; the company also trades in various chemical raw materials, water treatment agents, and other products.  
For many years, the enterprise has adhered to the principle of “surviving through quality and developing through credibility,” continuously developing new products. It has established stable cooperative relationships with numerous large domestic enterprises. The company’s products are widely recognized and highly praised by a broad user base and have gained positive word-of-mouth reputation.

Dalian Jinguang Building Materials Technology Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a national high-tech enterprise specializing in the research and development, manufacturing, and systematic application services of novel construction waterproofing materials. Its industry classification falls under “Waterproof Building Material Manufacturing” (C3033), a subcategory of “Non-Metallic Mineral Products Industry,” and the company is currently in a phase of scaled expansion. It was first certified as a national high-tech enterprise in 2020 (Certificate No.: GR202021210178) and successfully passed its re-evaluation in 2023; the certification remains valid until 2026.  

Its core business focuses on waterproofing systems tailored for chemical engineering projects in severely cold regions, covering applications such as waterproofing underground utility tunnels in coal chemical plants, anti-seepage layer construction for petrochemical storage tank foundations, root-puncture-resistant roofing solutions for fine chemical factories, and wet-applied self-adhesive membrane applications in pilot-scale facilities for new materials.  

The company’s core technical capabilities are embodied in three technological pathways:  
(1) Cold-region-specific SBS/APP modified bituminous membranes (validated to withstand repeated bending at −35°C without cracking);  
(2) Polymer-based self-adhesive pre-applied membranes with reverse adhesion (suitable for joints in diaphragm walls);  
(3) Composite methodology combining non-curing rubberized asphalt coating with membranes (achieving zero leakage throughout the entire service life).  

The company holds 3 invention patents, 12 utility model patents, and 2 software copyrights—all verifiable via the official website of the China National Intellectual Property Administration.  

In terms of qualifications, it possesses: Class II Professional Contracting Qualification for Building Waterproofing Engineering (Certificate No.: D221087654); Production License for Nationally Regulated Industrial Products (Certificate No.: XK08-005-00123); and ISO 9001/14001/45001 integrated management system certifications (valid until February 2027).  

Representative projects include: the structural waterproofing project for Dalian Metro Line 5 stations (2022–2024, third-party inspection confirmed zero leakage rate); the diaphragm wall joint waterproofing system for Terminal T3 of Harbin Taiping International Airport (2023); and the full-life-cycle waterproofing solution for the New Song Robotics Industrial Park in Shenyang (2021–2025). Technical services currently cover the Bohai Rim Economic Zone and Northeast China. Collaboration models include technology licensing, customized material supply, integration with BIM collaborative design platforms, and end-to-end delivery including on-site construction guidance.

Dalian Jinjiang Kaifei Chemical Co., Ltd., located in the Jinpu New Area of Dalian City, Liaoning Province, is a high-tech manufacturing enterprise specializing in the R&D, production, and sales of fine chemicals. The company’s registered capital and paid-up capital both amount to 50 million yuan. Established in 2003, it is currently in a phase of large-scale capacity expansion. The second-phase electronic chemicals production base was completed and put into operation in June 2025, with a designed annual production capacity of 26,000 tons. The company’s core business focuses on the manufacture of specialty materials for electronics, the production of lithium-ion battery materials, the development of high-end organic synthesis intermediates, and specialized solvents. Its typical clients include leading battery manufacturers such as CATL, BYD, and Xinwangda—covering the entire lithium battery industry chain—as well as companies involved in semiconductor packaging and cleaning processes, such as SMIC, which relies on its electronic-grade γ-butyrolactone. The company also serves overseas customers in the field of electronic chemicals. Its core competencies span three key technological areas: high-purity fluorinated organic synthesis, low-temperature catalytic sulfonation processes, and purification and refining of electronic-grade solvents. The company has achieved stable mass production of kiloton-level, highly stable lithium bis(fluorosulfonyl)imide (LiFSI), and holds 17 authorized invention patents—including ZL202410328765.2—and 9 utility model patents. All these patents are clearly owned and remain valid. The company has established a provincial-level enterprise technology center and spearheaded the formulation of the group standard “Electronic-grade 1,3-propanesultone” (T/CEMIA 032—2024). It has also participated in the revision of the industry standard “Electrolyte for Lithium-Ion Batteries” (HG/T 5905—2021). The company holds ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certifications, and possesses the “Safety Production License,” the “National Industrial Product Production License” (for hazardous chemical organic products), and the “Pollutant Emission Permit.” It is recognized as a National High-Tech Enterprise (GR202121000287; re-certified in 2024) and a “Specialized, Fine, and New” SME in Liaoning Province. Notable achievements include undertaking the Liaoning Provincial Key R&D Program “Research on Critical Preparation Technologies for High-Performance Lithium Battery Functional Additives” (2023JH2/10500123; acceptance scheduled for December 2025), supplying SMIC with electronic-grade γ-butyrolactone of 99.999% purity and with total metal impurities below 10 ppt, and receiving the 2024 China Semiconductor Innovation Product Award. The company’s products are exported to South Korea, Japan, Germany, and Southeast Asia. In 2025, its export value reached 128 million yuan. It maintains a permanent technical service representative office in South Korea (KR-BUS-2024-88712) and collaborates with BASF in Germany on joint application testing, supporting technology licensing, localized engineering implementation, and cross-border technical service delivery.