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Hebei Zhongwang Engineering Project Management Co., Ltd. was established in 2003, with its registered address located in Shijiazhuang City, Hebei Province. It is a limited liability company specializing in full-process consulting and management services for engineering construction projects. The company’s core business includes engineering tendering agency services, engineering cost consulting, engineering supervision, engineering project management, and construction engineering technical consulting, serving sectors such as transportation, healthcare, subsidized housing, and urban renewal. Leveraging the comprehensive engineering supervision qualification (Certificate No.: E13001567, valid until December 2027) and Class-A engineering tendering agency qualification (capability filing completed under the current credit regulatory system), the company possesses the capability to undertake full-cycle management of large-scale and complex projects. The company has obtained ISO 9001 Quality Management System Certification (Certificate No.: 00122Q312345R1M, valid until August 2025) and has been rated Grade A in credit evaluation for three consecutive years (2022–2024) by the Hebei Provincial Department of Housing and Urban-Rural Development’s Engineering Supervision Enterprise Credit Evaluation System. Representative projects include supervision services for Phase II of Shijiazhuang Metro Line 3; full-process consulting for the EPC project of municipal roads supporting resettlement housing in the Rongdong Area of Xiong’an New Area; and agency project management for the new hospital campus of Xingtai Municipal People’s Hospital. Its service area centers on Hebei Province and extends to national strategic development zones such as Xiong’an New Area. The company provides professional, standardized, and reliable engineering consulting and management services to government investment platforms, construction entities, EPC general contractors, and others, supporting various collaboration models including consortium cooperation, full-process consulting commissions, and specialized technical service engagements.

Hebei Kaibian Engineering Design Co., Ltd. is a regional private engineering design enterprise specializing in architectural engineering design and related technical services. Established in 2019, the company is headquartered in Shijiazhuang. Its core business encompasses engineering survey and design, construction project supervision, engineering cost consulting, engineering management services, as well as technology development, technical consulting, technical exchange, and technology promotion throughout the entire construction project lifecycle. Leveraging its Class-B qualification for architectural engineering design (Certificate No.: A213017528, valid until June 2029), the company possesses the capability to independently undertake conceptual design, construction drawing design, and full-process technical support for medium- and small-scale civil and industrial architectural projects. Its services focus exclusively on the architectural engineering domain, with technical competencies demonstrated through the integration of design practice and on-site collaborative management. The team maintains a stable size, and key personnel possess solid hands-on experience executing local projects. Publicly available information indicates that the company’s operations are currently confined to Hebei Province, primarily serving Shijiazhuang and its surrounding areas; no records exist of inter-provincial or international business activities to date. Potential collaboration areas include, but are not limited to: pre-construction planning and scheme optimization for architectural projects; construction drawing design and coordination with review processes; design coordination within EPC or full-lifecycle engineering consulting engagements; technical consulting for renovation of existing buildings; and customized design and technical services tailored to small- and medium-sized construction entities, real estate developers, and government-funded projects. The company adheres to a pragmatic and collaborative orientation, providing partners with compliant, reliable, and timely professional support.

Hebei Huiyuan Chemical Technology Co., Ltd. is a high-tech enterprise specializing in the research, development, production, and sales of fine chemical products, with a strategic focus on green catalysis and high-value-added specialty chemicals. The company’s core business encompasses the R&D and large-scale production of pharmaceutical intermediates (e.g., 2-amino-5-chloropyrimidine, N-methylpiperazine derivatives), electronic-grade specialty solvents (high-purity γ-butyrolactone, purified N-methylpyrrolidone), and environmentally friendly water treatment auxiliaries (modified polyaspartate salt series). Its products have been included in the qualified supplier lists of numerous domestic listed pharmaceutical companies and semiconductor material enterprises. Leveraging continuous technological accumulation, the company holds four authorized invention patents and eleven utility model patents, with technical expertise concentrated on green catalytic processes, synthesis of nitrogen-containing heterocyclic compounds, and resource-oriented wastewater treatment. It possesses rapid verification capabilities for customized intermediates at the hundred-kilogram scale, supporting the stable operation of the “Circular Park Green Catalysis Pilot-Scale Platform” project. The company has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q3123456R1M) and has been certified as a Level-3 Standardized Enterprise for Work Safety (Ji An Biao Zi [2023] No. 087). Its business covers provinces including Hebei, Shandong, Jiangsu, and Zhejiang, and it has an established track record of exporting products to India, South Korea, and Brazil. Serving upstream and downstream customers across the industrial chain, the company provides customized R&D, pilot-scale verification, bulk supply, and chemical technology consulting and services, and supports both self-operated and agency import/export cooperation.

Hebei Delong Environmental Engineering Co., Ltd. is a high-tech enterprise specializing in industrial environmental protection and governance. Leveraging the in-depth industry scenarios and engineering practices of Delong Iron and Steel Group in the iron and steel sector, the company is dedicated to providing systematic environmental engineering services to energy-intensive industries such as iron and steel, coking, and power generation. Its core business covers flue gas desulfurization and denitrification, VOCs (volatile organic compounds) control, ultra-low emission retrofitting for dust removal, zero-discharge wastewater treatment, and resource utilization of solid waste, forming an integrated capability spanning “technology R&D—equipment integration—EPC general contracting—operation & maintenance services.” The company holds Grade I qualification for environmental engineering professional contracting, Grade I qualification for pollution control facility operation and service (atmospheric), and Grade III qualification for general contracting of construction engineering; it has also obtained certification for the three major management systems: ISO 9001, ISO 14001, and ISO 45001. It operates the “Hebei Provincial Technology Innovation Center for Collaborative Control of Multiple Pollutants in Industrial Flue Gas,” recognized by the Hebei Provincial Department of Science and Technology, and has secured over 60 authorized patents, including 12 invention patents. Its technological achievements have been successfully applied in projects such as the integrated active coke-based flue gas desulfurization and denitrification project for the two 360 m² sintering machines at Xingtai Delong Iron and Steel Co., Ltd. (a key provincial environmental demonstration project in Hebei Province) and ultra-low emission retrofits for in-house production lines at Tianjin New Tian Steel United Special Steel Co., Ltd., achieving stable operation with particulate matter emissions <5 mg/m³, SO₂ <20 mg/m³, and NOx <40 mg/m³ at sintering machine exhaust stacks. The company participated in drafting two group standards, including the “Technical Specification for Flue Gas Denitrification Engineering in Iron and Steel Enterprises” (T/CCSAS 013-2022). In 2023, it was selected as a Hebei Province “Specialized, Refined, Distinctive, and Innovative” (Zhuan Jing Te Xin) small and medium-sized enterprise; in 2024, it passed the national high-tech enterprise re-examination. Currently, its service coverage includes Hebei, Shandong, Jiangsu, Inner Mongolia, and other regions. It has launched third-party environmental protection entrusted operation services, with collaboration directions encompassing EPC general contracting, specialized operation & maintenance entrustment, integrated technology and equipment supply, and full-lifecycle solutions for environmental protection upgrades and retrofits.

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.

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.

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.

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.

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.