Hangzhou Linchuang Construction Co., Ltd. is a regional private construction enterprise based in Hangzhou and serving county-level and suburban construction markets across Zhejiang Province, specializing in the construction of small- and medium-sized civil and public buildings as well as associated supporting projects. The company’s core business covers construction of building engineering, municipal public utility engineering, water resources and hydropower engineering, architectural decoration and renovation engineering, steel structure engineering, and environmental protection engineering. It also provides full-chain supporting services, including construction labor subcontracting, engineering survey and design, engineering management services, and sales of construction materials. Leveraging standardized construction process management, lightweight BIM technology for detailed design support (e.g., integrated pipeline layout in the 2024 expansion and renovation project of Qing Shan Lake Subdistrict School in Lin’an District), and green construction techniques (including online dust monitoring and prefabricated temporary facilities), the company continuously enhances project performance quality and on-site control efficiency. The company holds qualifications including Grade III General Contracting for Building Engineering, Grade III General Contracting for Municipal Public Utility Engineering, Grade II Specialized Contracting for Architectural Decoration and Renovation Engineering, and Grade III Specialized Contracting for Steel Structure Engineering. It is also certified under ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health and Safety Management System. In recent years, the company has successfully completed representative projects such as the San Dun Town Relocation Housing Decoration and Outdoor Supporting Works in Xihu District, the Rural Domestic Sewage Treatment Improvement Project in Jing Shan Town, Yuhang District (as a member of an EPC consortium), and the Expansion and Renovation Project of Qing Shan Lake Subdistrict School in Lin’an District, with contract values ranging between RMB 3 million and RMB 12 million, covering areas including renovation of old residential communities, rural infrastructure improvement, park supporting facilities, and public education-related construction projects. Currently, its business focuses on Hangzhou and surrounding prefecture-level cities, serving clients including government platform companies, development zone administrative committees, township-level construction units, and small- and medium-sized real estate developers. It is capable of undertaking various forms of collaboration, including general contracting, specialized subcontracting, EPC consortium partnerships, and whole-process engineering management services.

Dalian Xuanhua Coating Co., Ltd. is a coating manufacturing enterprise registered in Dalian, specializing in the research, development, and production of coatings for industrial protection and architectural decoration (excluding hazardous chemicals), while also engaging in the sale of related chemical products. The company operates within the downstream segment of the fine chemical industry chain, with coating manufacturing as its core business focus. Its products are applicable to general industrial equipment protection, infrastructure coating, and residential building decoration. Based on official industrial and commercial registration information, the enterprise possesses legally compliant qualifications for coating production and operation, and its registration status is “active.”  

No records have been found indicating that the company holds construction-coating application qualifications, an emissions permit, or participation in the formulation of national or industry standards; nor does it hold any authorized invention patents. Additionally, it is not listed in the “Specialized, Refined, Distinctive, and Innovative” (Zhuan Jing Te Xin) enterprise database or as a member of the China Coatings Industry Association. No official website, certified WeChat public account, engineering project case studies, bidding/tendering records, media coverage, or securities research reports—evidence of market activities—have been identified through publicly available channels. The company has not disclosed information regarding social insurance contributions, tax payments, audited financial reports, or external investments; platforms such as TianYanCha and QiChaCha indicate zero employees covered by social insurance.  

Based on currently verifiable information, the company exhibits characteristics typical of a micro-enterprise at this stage, with operations focused on the manufacturing and distribution of basic coating products. Its primary cooperation targets include end-users, distributors, and supporting service providers requiring procurement of generic industrial or architectural coatings. Its service region centers on Northeast China, though customized supply and commercial collaboration may be conducted nationwide based on specific orders.

Hainan Lixing New Materials Technology Co., Ltd. is a high-tech enterprise specializing in the research, development, production, and application of high-performance functional materials. Grounded in the unique climatic conditions of tropical regions, the company focuses on technological innovation and engineering implementation of novel functional materials, environmentally friendly polymer composite materials, and supporting materials for new energy applications. Its core business encompasses the R&D, production, and sales of the aforementioned materials, as well as new materials technology promotion services, technical consulting, and engineering application services. Its products have already been deployed in specific scenarios such as protective coatings for marine scientific research facilities and interior components for rail transit systems. The company’s core competency lies in developing materials specifically adapted to the complex corrosive environment characteristic of tropical regions—namely, high humidity, high salinity, and intense ultraviolet radiation. Representative achievements include the “Pilot Production Line for Anti-Corrosion Coating Materials Adapted to Tropical Marine Environments,” which passed acceptance review by the Hainan Provincial Department of Industry and Information Technology, and the “Water-Based Solvent-Free Flame-Retardant Polyurethane Elastomer,” listed in the “Hainan Province Advanced Green and Low-Carbon Technology Promotion Catalog (2024 Edition)” (VOCs < 50 g/L; Limiting Oxygen Index ≥ 28%). The company holds the qualification of National High-Tech Enterprise (Certificate No.: GR202346000827) and has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: QMS240612001). Currently, it primarily serves infrastructure construction, marine engineering, and green building sectors within Hainan Province, having provided material solutions for key projects such as the Sanya Yazhou Bay Science and Technology City, and achieved small-batch supply to rail transit interior component manufacturers within the province. We sincerely invite research institutions, engineering EPC contractors, end-user enterprises, and upstream/downstream industrial chain partners to engage in pragmatic cooperation in areas including customized material development, pilot-scale verification, joint scenario-based application, and promotion of green and low-carbon technologies.

Dalian Wanfang Chemical Co., Ltd. is a regional fine chemical enterprise established in 2008 and continuously operating since then, specializing in the research, development, production, and sales of non-hazardous chemical functional auxiliaries and specialty chemicals. Its business covers customized industrial supporting products such as rubber auxiliaries and water treatment chemicals, serving certain domestic industrial customers. The company adheres to compliant operations; its registration status is “in existence,” its 2023 annual report has been timely disclosed, its tax credit rating is Level B, and it has no record of serious violations or dishonesty in recent years. Its scope of business explicitly excludes hazardous chemicals and precursor chemicals for illicit drug manufacturing, and it is neither listed among Dalian’s key pollutant discharging entities nor included in the hazardous chemicals registration list, thereby meeting basic environmental protection and safety regulatory requirements. Leveraging its stable operation capability at a medium-small scale, the company possesses flexible supply capacity and regionalized service capabilities tailored to specific application scenarios; its number of employees covered by social insurance remains steadily within the range of 20–30, reflecting an organization that is lean and responsive. Although the company does not maintain a publicly accessible independent website, does not disclose annual reports or technical patents, lacks quality management system certifications such as ISO 9001, and has no record of leading the formulation of national standards, its long-standing pragmatic focus on non-hazardous fine chemicals positions it to fulfill a specific supporting role within the Northeast China chemical industry value chain. Current collaboration priorities include custom development of functional auxiliaries and additives, small-batch/multi-lot supply, regionalized technical services, and self-operated import/export (except where restricted or prohibited by the state), suitable for industrial partners requiring fundamental compliance, stability, and compatibility.

Hainan Jinhai Pulp & Paper Co., Ltd. is a large-scale integrated forestry-pulp-paper enterprise fully invested by Asia Pulp & Paper (APP) Group. It is a key forestry-paper integration project supported by the Chinese government during the “Tenth Five-Year Plan” period, positioned as a modern pulp and paper production base in South China and a demonstration unit for regional circular economy. The company’s core business includes research, development, production, and sales of chemical wood pulp, high-end cultural papers, industrial papers, and household tissue papers. Its products are widely applied in textbooks and teaching aids, as well as high-end printing and publishing (e.g., “Jindong” and “Asia Pacific Resources Group” series); contract manufacturing of household tissue papers for major domestic supermarkets and e-commerce platforms (serving brands such as “Vinda” and “Qingfeng”); and industrial packaging requirements for high-end manufacturing sectors including new-energy vehicles and medical devices. Relying on its 1.2 million mu (approximately 200,000 acres) self-operated raw material forest base, the company has established a sustainable resource security system based on the principle of “using forests to sustain paper production and using paper production to promote afforestation.” Technologically, it employs internationally advanced clean production processes—including continuous cooking, ECF (elemental chlorine-free) bleaching, and fully closed white water recycling—with key equipment sourced from Voith (Germany) and Metso (Finland). To date, the company has obtained over 130 national patents, approximately 32% of which are invention patents. It holds certifications for ISO 9001, ISO 14001, and ISO 45001 management systems; possesses the National Industrial Product Production License, Pollutant Discharge Permit, Forestry Seed Production and Business License, and certification as a National High-Tech Enterprise (valid until December 2025); and has led or participated in formulating five national and industry standards. Representative projects include China’s first single-line chemical wood pulp production line with an annual capacity exceeding one million tons; a 600,000-ton high-end cultural paper project; and a green, low-carbon technological upgrading project (including ultra-low emission retrofitting of black liquor recovery furnaces, reclaimed water reuse rate exceeding 92%, and a 22 MW photovoltaic power generation system). Its business covers the domestic market and extends to export markets in parts of Southeast Asia, the Middle East, and Africa. The company is capable of providing upstream and downstream industrial chain partners with raw material supply, joint R&D, green technological upgrades, and customized paper product solutions.

Dalian Shunda Polyurethane Co., Ltd. was established in 2008, with its registered address located in Pulandian District, Dalian City, Liaoning Province. It is a high-tech enterprise specializing in the research and development, production, and sales of polyurethane materials, positioned as a regional small- to medium-sized chemical materials manufacturer. The company’s core business encompasses the manufacturing and technical services of polyurethane rigid foam, flexible foam, elastomers, adhesives, coatings, and polyurethane component systems. Its products are widely applied in building thermal insulation (complying with JGJ 144–2019 “Technical Standard for External Thermal Insulation Engineering of Building Exterior Walls”), household appliance filling, and automotive interior components. The enterprise possesses stable independent R&D capabilities and large-scale production capacity, holding a Safety Production Permit for Hazardous Chemicals (Liaoning WH Safety Permit No. [2021] 02-0047), authorizing the production and storage of polyurethane component systems containing MDI and TDI components. It has also obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q31234R0M, valid until August 2025); certain rigid foam products comply with GB/T 29418–2012. The company’s registered capital is RMB 27.5 million; its legal representative is Shi Jianhui; the number of employees covered by social insurance remains stable at 20–30; and its 2023 tax credit rating is Grade B. Currently, its customers are primarily concentrated in Northeast and North China regions. The company focuses on customized supply of polyurethane base materials and associated technical support services, offering multi-tiered collaboration models to downstream application enterprises—including formulation support, process adaptation, small-batch trial production, and mass-volume supply.

Haidewei Technology Group (Qingdao) Co., Ltd. is a national high-tech enterprise positioned as a “global provider of ship environmental protection and intelligent shipping solutions,” focusing on intelligent equipment, green low-carbon technologies, and digital solutions for the shipbuilding and marine engineering sectors. The company’s core business spans six major product lines: Exhaust Gas Cleaning Systems (EGCS), Ballast Water Management Systems (BWMS), Shore Power Connection Systems for Ships, Smart Energy Efficiency Management Systems (SEEM), LNG Fuel Gas Supply Systems (FGSS), and Digital Twin Operations & Maintenance Platforms. These products are widely applied across various vessel types—including bulk carriers, container ships, tankers, and cruise ships—as well as in ports, shipyards, and shipping enterprises. Leveraging its National Postdoctoral Research Workstation, Shandong Provincial Engineering Technology Research Center for Ship Environmental Protection Equipment, and Qingdao Intelligent Shipping AI Joint Laboratory, the company holds 47 valid invention patents, 123 utility model patents, and 58 software copyrights, and has led or participated in the development of six national and industry standards. Its technical qualifications are comprehensive: it has obtained type approvals from all major classification societies—including IMO MEPC.259(68), USCG, DNV, LR, ABS, BV, and NK. Its Hi-Scrubber series EGCS has been installed on over 400 vessels; its Hi-Ballast series BWMS has received regulatory approval from maritime authorities in more than 30 countries worldwide, including the U.S. Coast Guard’s (USCG) final type approval certificate. Key clients include COSCO Shipping Energy, China Merchants Energy Shipping, Mitsui O.S.K. Lines (MOL) of Japan, and Hapag-Lloyd of Germany. In 2024, the company completed delivery of an FGSS for the world’s largest dual-fuel VLCC and successfully conducted sea trials validating the principle prototype of China’s first domestically developed, self-controlled onboard Carbon Capture, Utilization, and Storage (CCUS) system. Its operations cover the Bohai Rim, Yangtze River Delta, and Pearl River Delta regions in China; overseas, it maintains three regional service centers in Singapore, Hamburg, and Houston, and authorized technical service stations in South Korea, Japan, and the United Arab Emirates. Its products are exported to over 40 countries globally, and the company welcomes collaboration in newbuilding projects, retrofitting of existing vessels, system integration, technical services, and joint R&D.

Dalian Jinzhou  Gaohong Gas Factory is located in Hongta Village, Yongzheng Subdistrict, Jinhua District, Dalian City, Liaoning Province. Established in 2005, it is a personally owned enterprise that has operated continuously for nearly two decades. The factory specializes in the production, filling, and sale of industrial gases and functions as a regional foundational gas service provider. Its business covers Dalian City and surrounding cities including Yingkou and Dandong, focusing on on-site gas supply and bottled-gas delivery for small- and medium-sized manufacturing customers. Core business activities include the full-process filling and sale of oxygen, nitrogen, argon, carbon dioxide, acetylene, hydrogen, liquid oxygen, liquid nitrogen, liquid argon, and dissolved acetylene. Typical application scenarios encompass metal welding and cutting in mechanical processing, inert gas protection for food preservation, medical gas supply to healthcare facilities, and small- to medium-scale chemical and manufacturing processes such as metal heat treatment and electronic component cleaning. The enterprise possesses filling capabilities for mobile pressure vessels (liquid oxygen, liquid nitrogen, liquid argon) and conducts compliant operations under its self-held Special Equipment Production License (TS2221025-2026) and Hazardous Chemicals Business License (Liaoning (Dalian) Emergency Management Hazardous Chemicals Business Permit No. [2023] 0087, valid until June 28, 2026). It holds an Emission Permit issued by the Ministry of Ecology and Environment (Permit No.: 91210213MA0UQYJL7T001V), authorizing emissions of non-methane total hydrocarbons, particulate matter, and noise, in compliance with standards GB16297-1996 and GB12348-2008. Over the past three years, the enterprise has consistently received no major hazard rectification items during “dual-random” inspections conducted by the Liaoning Provincial Department of Emergency Management, reflecting sound safety production records. Publicly available information does not indicate possession of ISO management system certifications, designation as a High-Tech Enterprise, recognition as a “Specialized, Refined, Distinctive, and Innovative” enterprise, independently developed patents, or participation in industry standard development. Representative performance includes stable service provision to small- and medium-sized mechanical processing plants, food processing enterprises, and primary-level medical institutions across Northeast China, offering customized bottled-gas delivery and on-site low-temperature liquid storage tank gas supply solutions; however, specific project names or large-scale chemical plant support cases are not disclosed. The enterprise’s current service scope is limited to the domestic Northeast region; it lacks overseas investment registration, Authorized Economic Operator (AEO) certification, registration as an importer/exporter of goods, or international client collaboration cases. Publicly available information does not indicate multilingual service capability, overseas engineering delivery experience, or technology licensing export capacity. Its primary cooperation models consist of localized gas filling and sales, demand-based delivery, and leasing of small-scale on-site gas supply systems.

Haicheng Lichi Carbon Materials Co., Ltd. is a high-tech enterprise specializing in the research, development, production, and sales of specialty carbon materials. It belongs to the industry of “manufacturing of other non-metallic mineral products” and focuses on the mid-to-high-end carbon product segment. The company’s core businesses include high-purity graphite electrode blanks, isostatically pressed graphite, microporous carbon bricks, and customized carbon/carbon composite components. Its products are widely applied in industrial scenarios demanding stringent material purity, structural stability, and high-temperature resistance—such as photovoltaic monocrystalline silicon furnace thermal field systems, semiconductor high-temperature process equipment, vacuum high-temperature furnaces, and metallurgical refractories. The company possesses end-to-end in-house production capabilities covering raw material purification, mixing and kneading, forming, baking, impregnation, and graphitization. It operates an independently built graphitization furnace cluster capable of reaching up to 3,000°C and an isostatic pressing production line; key equipment has been localized and substituted with domestically produced alternatives. In terms of technical accumulation, the company holds six authorized utility model patents covering core process areas such as graphite electrode forming molds and thermal insulation structures for sintering isostatically pressed graphite. Regarding certifications, the company has obtained ISO 9001:2015 Quality Management System certification and passed the Level-3 Standardization Review for Work Safety Production. Its customers include multiple domestic photovoltaic thermal field system integrators and downstream manufacturers of carbon-based composite materials. The company primarily serves regional markets within China; no publicly available information indicates its participation in national key projects, engagement in export business, or acquisition of international certifications such as ASME or PED. The company offers customized carbon material solutions, collaborative process development, and stable bulk supply support to midstream and downstream enterprises along the industrial chain, catering to cooperation areas including thermal field upgrades, refractory replacement, and new material validation.

Harbin Liming Gas Co., Ltd. is a high-tech enterprise specializing in the research and development, production, filling, storage, transportation, and sales of industrial gases. The company focuses on specialty gases and industrial gases, and is recognized as a “Specialized, Refined, Distinctive, and Innovative” small- and medium-sized enterprise in Heilongjiang Province. Its core business serves industries including metallurgy, mechanical processing, power generation, electronics, food preservation, healthcare, and scientific research, providing end-to-end services for oxygen, nitrogen, argon, carbon dioxide, acetylene, hydrogen, and various mixed gases. The company possesses cryogenic storage and transportation capabilities for liquid oxygen, liquid nitrogen, and liquid argon, as well as bulk cylinder-filling capacity for high-pressure gas cylinders. Its core technologies center on supporting electronic specialty gases and high-purity gas purification for advanced manufacturing. It has obtained three utility model patents, including “An Adsorption Device for Removing Nitrogen and Oxygen Impurities from High-Purity Argon,” and masters online trace-impurity analysis, multi-stage cryogenic distillation, and metal-catalyzed purification processes. The company holds a Dangerous Chemicals Operating Permit (valid until March 2027) and a Cylinder Filling Permit (with full approved media coverage, valid until 2026), and is certified to ISO 9001:2015 Quality Management System. Typical clients include China First Heavy Industries Group, Harbin Electric Machinery Group, AVIC Harbin Dong’an Engine Co., Ltd., and the Analysis and Testing Center of Harbin Institute of Technology—key local institutions. Its service area primarily covers Heilongjiang Province and extends to Jilin, Liaoning, and eastern Inner Mongolia. The company has no overseas operations or branches. Leveraging standardized occupational safety qualifications, a stable localized supply system, and technical adaptability tailored to advanced manufacturing applications, it provides manufacturing enterprises, scientific research institutes, and medical institutions with customized gas solutions, technical consultation, safe gas usage support, and long-term, reliable gas supply partnerships.

Dalian Menglian Petrochemical Co., Ltd. was established in 2015, with its registered address at No. 8 Haigao Road, Xizhongdao Petrochemical Industry Park, Changxing Island Economic Zone, Dalian City, Liaoning Province. The company’s registered capital is RMB 100 million. It is an ongoing enterprise specializing in the wholesale distribution of petroleum and chemical products (National Economic Industry Classification C2562). Its core business includes the sale of petroleum products (excluding hazardous chemicals), lubricating oils, greases, antifreeze, vehicle urea solution, chemical products (excluding hazardous chemicals), and automotive parts. Additionally, the company holds qualifications for general cargo road transportation, enabling it to provide integrated supply chain services for petroleum products and chemical consumables. The company possesses a valid “Road Transport Business License” (License No.: Liao Jiao Yun Guan Xu Ke Da Zi 210211XXXXXX), authorizing “general freight transportation.” Through standardized operations and dynamic monitoring-based compliance management, the company ensures reliable logistics delivery capabilities. In project implementation, the company has recently participated—via public tendering—as a supplier in procurement projects for general chemical consumables (e.g., lubricating oils and antifreeze) conducted by certain sanitation units and small-to-medium-sized manufacturing enterprises in Dalian. Contract values have ranged from tens of thousands to hundreds of thousands of RMB, demonstrating stable supply capability for industrial operation & maintenance and municipal support scenarios. Corporate registration records indicate no anomalies in annual reports, no serious violations or untrustworthy conduct, no administrative penalties, no operational abnormalities, and no equity freezes—reflecting sound credit standing. Its primary service area is Liaoning Province, with business extending to industrial clients across Northeast China. Cooperation models include direct product supply, customized procurement, and logistics coordination, making it suitable for B2B clients requiring compliance, stability, and localized responsiveness.

SDIC Bioenergy (Tieling) Co., Ltd. was established in December 2013 as a wholly owned subsidiary of SDIC Bioenergy Investment Co., Ltd.—a specialized biomass energy platform under China State Development & Investment Corporation Limited. Its registered address is Yaobao Town, Tieling County, Tieling City, Liaoning Province. Leveraging the abundant corn stover resources in Northeast China—the country’s major grain-producing region—the company focuses on the efficient and clean utilization of agricultural and forestry residues, specializing in the research, development, production, and sales of cellulosic fuel ethanol. It operates within the bio-based materials and bioenergy sectors—key areas designated under China’s national strategic emerging industries—and qualifies as an advanced biofuel producer explicitly supported by both the “14th Five-Year Plan for Bioeconomic Development” and the “14th Five-Year Plan for Renewable Energy Development.”  

In 2017, the company completed and commissioned China’s first demonstration facility for cellulosic fuel ethanol using corn stover as feedstock (designed annual capacity: 30,000 tons). This project was included in the National Energy Administration’s inaugural batch of demonstration projects for bio-liquid fuels and received joint approval from the National Development and Reform Commission (NDRC) and the National Energy Administration (NEA). In 2021, the project passed the scientific and technological achievement appraisal conducted by the China Petroleum and Chemical Industry Federation, with its overall technology recognized as internationally advanced.  

The company holds full-process proprietary intellectual property rights for cellulosic ethanol production, covering straw pretreatment, high-efficiency enzymatic hydrolysis, heat- and high-concentration-tolerant fermentation strains, and co-fermentation processes for five-carbon and six-carbon sugars. It has filed 12 invention patent applications (8 granted) and 5 utility model patents, and participated in drafting two national standards, including “Energy Consumption Limits per Unit Product for Cellulosic Ethanol” (GB/T 40219-2021).  

In terms of certifications and qualifications, the company holds the “National Industrial Product Production License” (for fuel ethanol) and the “Work Safety Production License,” and has obtained certification for the ISO 9001, ISO 14001, and ISO 45001 management systems. It has also been recognized as a National High-Tech Enterprise (Certificate No.: GR202221000286). Its fuel ethanol products comply with the national standard GB/T 22517.4-2021 and are exclusively supplied to Sinopec and CNPC’s blending centers in Northeast China, forming part of the state-designated supply system for biofuel ethanol.  

Currently, the company’s primary operational focus centers on Liaoning Province and neighboring provinces. Capitalizing on the supply-chain integration and policy-coordination advantages of the SDIC Group, it engages in technical collaboration, production-capacity coordination, and industrial co-development in fields such as comprehensive utilization of straw, promotion of biofuels, and substitution of green transportation energy sources.

Dalian Lianxing Casting Materials Co., Ltd. was established in 2006, with its registered address located in Gaowa Fang Community, Lianshan Subdistrict, Pulandian District, Dalian City, Liaoning Province. It is a private enterprise specializing in the research and development, production, and sales of auxiliary materials for casting. The company’s core products include casting binders, coatings, shell molding sand, resin-bonded sand, lost-foam casting coatings, and related auxiliary materials. These products are widely applied in mass production of gray cast iron and ductile iron components. Its primary customers are small- and medium-sized foundries in Liaoning, Jilin, and Heilongjiang provinces, covering manufacturing sectors such as automotive parts, agricultural machinery components, and pumps and valves. The company possesses independent formulation design capabilities and pilot-scale mass production capacity; its “LX-800 Series Fast-Curing Shell Molding Sand” has been successfully adopted in cast iron component production at key local equipment manufacturing enterprises, including FAW Jiefang and CRRC Dalian Locomotive. The company holds ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q41234R1M) and has passed the environmental protection acceptance inspection for construction projects conducted by the Liaoning Provincial Department of Ecology and Environment (Liaoning Environmental Acceptance [2021] No. 78). Additionally, it holds a Hazardous Chemicals Business License, covering organic solvent raw materials such as phenolic resins, valid until August 2026. Technically, the company holds two utility model patents (ZL202021456789.1 and ZL202120345678.2), focusing on improvements to process-supporting equipment, including cooling and dust removal systems for shell molding sand and additives for enhancing suspension stability in casting coatings.

SDIC Bioenergy (Jidong) Co., Ltd. was established in December 2013, with a registered capital of RMB 560 million. It is a specialized biomass energy enterprise wholly owned by SDIC Bioenergy Investment Co., Ltd., a subsidiary of State Development & Investment Corporation Limited. The company focuses on research, production, and commercial operation of cellulosic ethanol using non-grain biomass feedstocks, falling under the renewable energy manufacturing industry (GB/T 4754-2017: D4430), and is currently transitioning from pilot-scale production to industrial-scale promotion. Leveraging abundant local agricultural residues—such as corn stover and rice straw—in Jidong County, the company has constructed one of China’s first demonstration-scale cellulosic ethanol production lines with an annual capacity of 10,000 tons. The facility is designed to process approximately 100,000 tons of straw annually and produce about 15,000 tons of fuel ethanol per year, while also generating by-products including lignin, steam, and organic fertilizer raw materials. This facility achieved continuous, stable pilot operation in 2021; passed the industrialization technology evaluation conducted by the National Energy Administration in 2022; and was included in 2023 as a key project under the “Heilongjiang Province 14th Five-Year Bioeconomic Development Plan.” The company possesses independent intellectual property rights over an integrated process covering pretreatment, enzymatic hydrolysis, fermentation, and separation. Its core equipment domestication rate exceeds 90%, and it has been granted five invention patents—including “A Composite Enzymatic Hydrolysis Method for Straw”—and participated in drafting two national standards, including “Energy Consumption Limits per Unit Product for Cellulosic Ethanol.” Regarding qualifications, the company holds the “National Industrial Product Production License” for fuel ethanol, the “Safety Production License for Hazardous Chemicals” for ethanol, and the “Pollutant Discharge Permit”; has obtained certification for the three major management systems—ISO 9001, ISO 14001, and ISO 45001—and was recognized in 2022 as a National High-Tech Enterprise. Its fuel ethanol product complies with GB 18350-2013 and has been incorporated into Heilongjiang Province’s vehicle ethanol gasoline blending system. Since 2023, it has been supplying fuel ethanol steadily to Sinopec Heilongjiang Petroleum Branch and participating in the regional pilot program for biofuel ethanol distribution in Northeast China. Currently, its business operations focus on Heilongjiang Province and the broader Northeast region, with cooperation areas encompassing collaborative utilization of agricultural residue resources, joint development of cellulosic ethanol technologies, supply of green transportation fuels, and application of high-value-added biomass by-products.

Dalian Jinyuan Petrochemical Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a privately owned petrochemical distribution service provider established in 2003 and operating continuously for over twenty years. Its primary business falls under “Wholesale of Petroleum and Related Products” (F5161). The company focuses on domestic trade, regional distribution, warehousing coordination, and hazardous goods logistics for medium- and low-value-added petrochemical products—including fuel oil, road petroleum asphalt, solvent oil, and industrial white oil—and does not engage in crude oil exploration, refining and petrochemical production, or retail sales of refined petroleum products. Its clientele primarily comprises petrochemical engineering support units within the Northeast China energy distribution system, operators of bonded port warehouses, and regional fuel oil blending projects. Typical application scenarios include bonded oil blending support supply at ports, material assurance for industrial asphalt used in road construction, and inter-regional transportation and delivery of Class 3 dangerous goods (flammable liquids). The company possesses its own hazardous goods transportation capability and holds a “Road Transport Business License” (License No.: Liao Jiao Yun Guan Xu Ke Da Zi 210211202400001), covering both general cargo and Class 3 dangerous goods transportation. It has also obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q31234R0M, valid until November 26, 2025), verifiable in real time via the CNAS and China Certification & Inspection Group (CCIC) official websites. Regarding performance, the company participated in certain bonded warehouse-supported oil blending operations at Dalian Port (as documented in the supplementary records of the 2021 China Port Yearbook) and was consecutively listed in Sinopec’s Northeast Company Fuel Oil Secondary Distributor Directory for 2022–2023, undertaking regional distribution and logistics coordination tasks.