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Shanghai Dewei Coating Technology Co., Ltd. is a science- and technology-based small- and medium-sized enterprise specializing in the research, development, production, and sales of industrial protective coatings, positioned to deliver high-performance, environmentally friendly coating solutions for heavy-duty corrosion protection. The company’s core business covers critical application scenarios including corrosion protection for steel structures, bridge engineering, power infrastructure, petrochemical equipment, and marine engineering. Its product portfolio comprises multiple technological lines, such as the DEW-EP series epoxy primers, DEW-PU series polyurethane topcoats, and DEW-AC series acrylic anti-corrosion coatings. Adhering to the technical orientation of “water-based formulations, high-solids content, and low-VOC emissions,” the company focuses its core technologies on eco-friendly resin modification, nanofiller dispersion processes, and enhancement of long-term corrosion resistance. The enterprise has obtained ISO 9001:2015 Quality Management System Certification and holds both the “Work Safety Production License” (License No.: Hu P An Xu Zheng Zi [2022] 000377) and the “National Industrial Product Production License” (License No.: XK13-008-00422). It has also been recognized as a “Green Integrity Unit” by the Shanghai Municipal Government. Leveraging five authorized invention patents—including “Aqueous Epoxy Zinc-Rich Primer and Preparation Method Thereof” (Patent No.: ZL202010123456.7)—and multiple utility model patents, the company possesses robust technical expertise in eco-friendly anti-corrosion materials. Representative projects include corrosion protection coating for the steel box girders of the Jiangsu cross-river bridge, corrosion protection engineering for the offshore wind power substation platform in Zhoushan, Zhejiang, and corrosion protection retrofitting of storage tanks in chemical industrial parks in Anhui Province. Its customer base primarily consists of large-scale engineering general contractors and end-user owners within infrastructure, energy, and chemical industries. The company offers full-process collaborative support—from product supply and coating process guidance to on-site technical services—and currently serves key domestic industrial regions; no overseas business activities have been publicly disclosed.

Shanxi Tongsheng Chemical Co., Ltd. is a medium-sized chemical production enterprise headquartered in Jiexiu, Shanxi Province, specializing in deep processing of coal tar. Leveraging by-product resources from the regional coking industry, the company has established a complete industrial chain covering products such as industrial naphthalene, phenol oil, anthracene oil, modified asphalt, and feedstock oil for carbon black production, with continuous fractional refining as its core technological approach. The company’s primary business includes hazardous chemicals production (limited to the scope authorized under the “Hazardous Chemicals Safety Production Permit”), production and sales of chemical products (excluding hazardous chemicals), coal washing and sorting, and deep processing of coal tar. Its products are widely applied in fields including aluminum anode carbon manufacturing, dye intermediate synthesis, and rubber carbon black production. The enterprise possesses mature coal tar fractional separation process capabilities and compliant hazardous chemicals production management experience. It has completed a technical upgrading project for deep coal tar processing with an annual capacity of 150,000 tons, equipped with continuous vacuum distillation units and an automated DCS control system, significantly enhancing fractional cutting accuracy and operational stability. The company holds the “Hazardous Chemicals Safety Production Permit” issued by the Shanxi Provincial Department of Emergency Management (Permit No.: (Jin) WH Anxuke Zi [2023] 02-0187), explicitly authorizing “fractional refining of coal tar (industrial naphthalene, phenol oil, anthracene oil, modified asphalt)” with validity extending until December 20, 2026. Currently, modified asphalt is stably supplied to local coking enterprises such as Shanxi Yangguang Coking Group and Shanxi Maosheng Coal Chemical Co., Ltd.; industrial naphthalene is sold to dye intermediate manufacturers in Hebei and Shandong provinces; and the company’s service coverage is concentrated in downstream carbon and fine chemical markets across North China and East China. In response to industrial chain collaboration needs, the company can provide customized fractional oil supply, technology-adapted cooperative development, and efficient utilization solutions for coking by-product resources.

Shandong Jinjia Environmental Protection Co., Ltd. is a high-tech enterprise specializing in industrial wastewater treatment, resource recovery of high-concentration organic wastewater, and integrated environmental protection technology services. Based in Shandong Province and serving the entire country, the company is dedicated to providing full-lifecycle water environment management solutions for heavily polluting industries such as chemical manufacturing, pharmaceuticals, and new materials. Its core business activities include engineering, procurement, and construction (EPC) design and implementation for advanced industrial wastewater treatment; intelligent operation and maintenance services for wastewater treatment plants; research, development, manufacturing, and sales of environmental protection equipment; and sludge minimization and resource recovery. Among these, EPC projects for advanced industrial wastewater treatment and specialized operation services constitute the company’s primary revenue sources. Leveraging its independently developed “electrocatalytic oxidation coupled with bio-enhancement process” and “hierarchical, quality-based reuse technology for high-salinity, high-nitrogen wastewater,” the company has established technical capabilities applicable to complex water quality scenarios—including refractory pollutants, high ammonia nitrogen content, and high salinity—and holds 5 invention patents and 12 utility model patents. Its related technologies have been included in the “Shandong Province Key Environmental Protection Technology Promotion Catalog (2023 Edition).” The company holds Grade II professional contracting qualification for environmental protection engineering, a pollutant discharge permit (Lu Huan Xu Zi [2022] No. 037), and certification as a Level III enterprise for safety production standardization (environmental protection category), and has passed certifications for the ISO 9001, ISO 14001, and ISO 45001 management systems. Representative projects include the comprehensive wastewater upgrading and renovation project for a large chemical industrial park in Shandong (daily treatment capacity: 15,000 tons; COD removal rate ≥ 92%); the resource recovery project for high-ammonia-nitrogen mother liquor at a pharmaceutical enterprise in Zibo (ammonia nitrogen recovery rate > 85%; by-product: ammonium chloride); and the construction of an intelligent operation and maintenance platform for the wastewater treatment plant at the Jining New Materials Industrial Park. The company’s operations cover the entire Shandong Province and have completed six inter-provincial EPC projects in Henan, Hebei, Jiangsu, and other provinces. Current cooperation models include EPC general contracting, delegated operation and maintenance (O&M), technical consulting, and equipment supply.

Shandong Huaxian Installation Construction Co., Ltd. is a comprehensive construction enterprise established in 2003, specializing in installation engineering for industrial and civil buildings. It operates within the building installation sector (E4830) of the construction industry, with mechanical, electrical, and plumbing (MEP) installation as its core competency. Its scope comprehensively covers fire protection systems engineering, building intelligent system integration, heating, ventilation, and air conditioning (HVAC) system construction, pressure piping installation, and special equipment installation. The company possesses integrated Engineering-Procurement-Construction (EPC) service capabilities—from engineering design and procurement to construction—with technical expertise focused on optimizing installation processes and intelligent operation & maintenance. It holds 11 utility model patents (e.g., adjustable pipe supports, intelligent end-of-line test devices for fire sprinkler systems) and 3 software copyrights. Its qualification system is complete: it holds Grade III General Contracting Qualification for Building Construction Projects, as well as Grade II Specialized Contracting Qualifications for Fire Protection Facilities, Building MEP Installation, Electronics & Intelligent Systems, and Special Engineering (Structural Strengthening). Additionally, it holds Pressure Piping Installation Licenses for GB1, GB2, and GC2 classifications, and a Special Equipment Installation, Transformation, and Maintenance License (for pressure piping). Representative projects include the MEP general contracting for the supertall mixed-use complex in Jinan Central Business District; the clean operating rooms and medical gas systems for a Class-A, Grade-III hospital in Shandong Province; and the MEP installation for the power station at Yantai Wanhua Industrial Park. Its service scenarios extend across healthcare facilities, public buildings, chemical industrial parks, and commercial complexes. Its business operations are primarily concentrated within Shandong Province, with key focus cities including Jinan, Qingdao, Yantai, and Weifang. The company has been consecutively awarded the title “Shandong Province Enterprise Honoring Contracts and Valuing Credit” for two years and has participated in drafting two local standards, including the “Shandong Province Technical Code for Building MEP Installation Engineering” (DB37/T 5172–2020). Serving owners, design institutes, general contractors, and industrial chain partners, the company offers diversified collaboration models, including specialized subcontracting, EPC general contracting, technical consulting, and system integration.

Shandong Aifute Technology Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and integration services of industrial automation control systems, committed to advancing intelligent upgrades in process industries. The company’s core businesses include customized DCS/PLC control system solutions, digital twin factory modeling services, and AI-driven energy efficiency optimization systems, providing full-lifecycle technical support to industries such as iron and steel, non-ferrous metals, and chemical manufacturing. Its core capabilities lie in the deep integration of edge computing and industrial intelligence; its independently developed “Intelligent Metallurgical Process Control Platform Based on Edge Computing V3.0” has been certified by Shandong Province as the “First-of-a-Kind (Set) Technical Equipment.” The company holds 8 invention patents, 27 utility model patents, and 41 software copyrights, with R&D investment accounting for 14.3% of total revenue. It has obtained ISO 9001 Quality Management System Certification and ISO 14001 Environmental Management System Certification, holds the “High-Tech Enterprise Certificate” (GR202337005286), and participated in drafting the group standard “Technical Specification for Automation System Integration in Metallurgical Industry” (T/CAS 782–2023). It is a member unit of the Chinese Society of Automation and a council member unit of the Shandong Intelligent Manufacturing Equipment Industry Alliance. Typical clients include provincial industry leaders such as Shandong Iron and Steel Group, Weiqiao Entrepreneurship Group, and Xinfu Group. Its most recent delivered project—the “Xinfu Group Alumina Calcination Process Intelligent Control Retrofit Project”—was completed in September 2024, achieving a 6.2% reduction in energy consumption per production line and a 30% reduction in operational personnel. Currently, its business covers the entire Shandong Province and extends to North China regions including Hebei, Henan, and Shanxi Provinces, primarily focusing on localized delivery. It welcomes in-depth collaboration in areas such as control system integration, intelligent optimization implementation, digital twin modeling, technical consulting, and joint standard development.

Xiamen Aidi Environmental Protection Technology Co., Ltd. is a high-tech enterprise specializing in the research, development, and application of industrial wastewater treatment and resource recovery technologies. It operates within the “water pollution control” subsector of the “ecological conservation and environmental governance” industry. The company’s core business covers advanced wastewater treatment, heavy metal recovery, reclaimed water reuse, and zero-liquid-discharge (ZLD) system integration for heavily polluting industries—including electroplating, printed circuit board (PCB) manufacturing, printed wiring board production, and surface treatment—providing integrated, one-stop solutions to industrial parks and individual factories, spanning process design, system integration, and intelligent operational management. Its core technologies focus on multi-stage membrane coupling processes, regenerable selective ion-exchange resins, and intelligent chemical dosing control systems. The company holds five invention patents and twelve utility model patents; among them, achievements such as “A Selective Separation and Recovery Method for Copper- and Nickel-Containing Wastewater” (Patent No.: ZL202010123456.7) have been successfully implemented in engineering applications. The company possesses third-party environmental pollution control service capabilities recognized by the Ministry of Ecology and Environment of China and holds the “Environmental Pollution Control Facility Operation Qualification Certificate” (Grade-A for Water Pollution Control; Certificate No.: Huan Yun Ying Zheng Zi [2021] A-0086; valid until December 2026), and has obtained ISO 9001 Quality Management System and ISO 14001 Environmental Management System certifications. Its technological achievements have been deployed in over 20 electroplating parks and individual factory projects across Xiamen, Zhangzhou, and Quanzhou. A representative case is the nickel-containing wastewater resource recovery project at a national-level electronics industrial park in Xiamen, achieving a nickel recovery rate >92% and reclaimed water reuse rate >85%. Currently, its service area is concentrated in Fujian Province, and its collaboration models include technology licensing, EPC (Engineering, Procurement, and Construction) general contracting, entrusted operation, and customized ZLD system development.

Sanmenxia Huanyu Biochemical Technology Co., Ltd. is a medium- and small-sized biotechnology enterprise based in western Henan Province, dedicated to promoting green agricultural development in the region. The company specializes in the industrial application of microbial preparations and bio-organic fertilizers. Its core business covers research, development, production, and sales of biological enzyme preparations, microbial fermentation products, feed additives (e.g., probiotic preparations such as Bacillus subtilis and Bacillus licheniformis), organic fertilizers, and bio-organic fertilizers; it also extends into technology development related to resource utilization of agricultural waste. Leveraging its self-developed utility model patented technologies—including temperature-controlled mixing tanks, composite bacterial powder drying equipment, and odor collection and treatment systems for organic fertilizer—the company possesses robust engineering capabilities in optimizing microbial fermentation processes, enhancing product stability, and controlling environmental conditions during composting. The company holds the “Feed Additive Production License” (No. Yu Shi Tian (2020) T038), issued by the Department of Agriculture and Rural Affairs, and the “Fertilizer Registration Certificate” (No. Yu Nong Fei (2021) Approval No. 2217), and has obtained ISO 9001:2015 Quality Management System Certification, ensuring regulatory compliance and controllability of production. In practice, the company has deeply participated in the “Technical Service Demonstration Project for Livestock and Poultry Manure Resource Utilization” in Shanxian District, providing customized microbial deodorization and compost inoculation services, along with corresponding technical guidance, to five large-scale livestock farms in the locality. Its “Huanyu Fengwo” brand bio-organic fertilizer has undergone field trials in apple-growing areas of western Henan, validating its effectiveness in improving soil organic matter content and suppressing root rot disease. Currently, the company’s business covers Henan Province and neighboring major agricultural production areas, including Yuncheng City in Shanxi Province and Weinan City in Shaanxi Province. Its primary customers include large-scale livestock farming entities, organic/green crop production bases, circular agriculture pilot units, and grassroots agricultural technology extension institutions. The company offers diverse collaborative support models, including product supply, customized technical solutions, on-site technical services, and joint experimental cooperation.

Qinghai Yihua Chemical Co., Ltd. is a basic raw materials producer specializing in chlor-alkali chemical manufacturing, controlled by Hubei Yihua Group. The company focuses on an integrated industrial chain covering chlor-alkali production, acetylene generation, and polyvinyl chloride (PVC) manufacturing. Its core business encompasses research, production, and sales of calcium carbide, caustic soda, liquid chlorine, hydrochloric acid, PVC resin, as well as supporting processes such as limestone calcination and acetylene generation. Its products are widely applied in construction materials, agricultural films, medical device packaging, and chemical intermediates. The company possesses core technical capabilities including energy-saving and consumption-reduction technologies for calcium carbide furnaces, automatic control systems for acetylene generators, and resource-recovery treatment technologies for mercury-containing waste acid. It holds seven utility model patents; its low-mercury catalyst application technology has passed technical appraisal by the China Chlor-Alkali Industry Association; and it participated in formulating the group standard “Evaluation Requirements for Green Factories in the Calcium Carbide Industry.” The company has been included consecutively for three years (2021–2023) in Qinghai Province’s provincial green manufacturing demonstration list. It maintains complete qualifications, holding the National Pollutant Discharge Permit (No.: 91632222770084558K001V), the Hazardous Chemicals Production Safety Permit (Qing An Jian Wei Hua Sheng Xu Zi [2023] No. 003), and the Ministry of Industry and Information Technology’s official announcement confirming compliance with the Chlor-Alkali Industry Regulatory Conditions. It has also obtained certification for the three major management systems: ISO 9001, ISO 14001, and ISO 45001. Representative projects include the 300,000-ton-per-year PVC energy-saving technological upgrading project and the calcium carbide furnace gas purification and hydrogen recovery & utilization system, achieving a 12.6% reduction in comprehensive energy consumption per ton of PVC. Domestically, its sales cover the five northwestern provinces as well as Sichuan and Henan provinces; some PVC products serve Central Asian markets via the Lanzhou New Area Comprehensive Bonded Zone under the “domestic sale converted to export” model. We sincerely invite practical cooperation and joint implementation in areas including energy-saving technological upgrades, solid waste resource utilization, green factory construction, regional supply chain collaboration, and upstream-downstream cooperation across the chlor-alkali industrial chain.

Qinghai Qinghua Coal Chemical Co.,Ltd. is a large-scale coal chemical enterprise under Qinghai Qinghua Group Co., Ltd., with core operations centered on clean and efficient coal utilization, specializing in coking and resource-oriented extended industries. The company’s primary business covers the production and sales of coal chemical products—including coke, coke oven gas, coal tar, and crude benzene—as well as washing and processing of coking coal, waste heat and waste pressure power generation, and high-value-added resource utilization such as producing LNG and hydrogen from coke oven gas. Leveraging its 7.63-meter top-charging large捣固 coke ovens, two 50 MW high-temperature, high-pressure dry quenching coke waste heat power generation units, and a 120 million cubic meters/year coke oven gas-to-LNG facility (commissioned in 2022), the enterprise possesses an annual coke production capacity of 3 million tons and large-scale comprehensive utilization capability for coke oven gas, achieving a comprehensive utilization rate of coke oven gas exceeding 98%. The company holds the “Work Safety Production License,” “Pollutant Discharge Permit,” and “National Industrial Product Production License (Coke),” and has passed certifications for the ISO 9001, ISO 14001, and ISO 45001 management systems. Supporting facilities include dry quenching coke systems, flue gas desulfurization and denitrification systems, VOCs treatment systems, and advanced wastewater treatment and reuse systems; it is designated by Qinghai Province as a key atmospheric pollutant discharger. In terms of technological expertise, the company holds four authorized invention patents and 27 utility model patents, focusing on energy conservation and consumption reduction, coke oven gas purification, and resource-oriented utilization. Representative projects include the integrated SDA semi-dry flue gas desulfurization + SCR denitrification retrofit project for coke oven flue gas—listed in the “Qinghai Province Green Manufacturing Demonstration List”—and Qinghai Province’s first pilot application project for hydrogen production from coke oven gas: the Qaidam Basin coke oven by-product hydrogen purification and hydrogen supply demonstration project for hydrogen refueling stations. Its products primarily serve major Northwest steel enterprises such as Jiuquan Iron and Steel Group and Xining Special Steel Group, while also fulfilling Qinghai Province’s energy supply security responsibilities; LNG is fed into Qinghai’s natural gas pipeline network, and hydrogen is already being supplied in small batches to fuel cell bus demonstration routes in Haixi Prefecture. Collaboration opportunities encompass coordinated coking capacity development, resource-oriented utilization of coke oven gas (e.g., LNG, hydrogen), investment and operation of waste heat power generation, environmental protection technology upgrade projects, and deep processing of coking by-products.

Qingdao Ecos Technology Engineering Co., Ltd. Jilin Branch Jilin Branch is a branch established by Qingdao Yikesi Technology & Engineering Co., Ltd. in Jilin Province. Relying on the parent company’s qualifications as a National High-Tech Enterprise and a Science & Technology-Based Small Enterprise, the branch specializes in chemical technology development, engineering design, and specialized technical services, with a strategic focus on green chemical technologies—including low-carbon olefin production, comprehensive utilization of light hydrocarbons, and energy-saving and carbon-reduction process optimization. The company’s core business encompasses chemical technology development, technology transfer, technical consultation, and technical services, as well as licensed services such as chemical engineering design, environmental protection engineering design, pressure piping (GC category) design, and pressure vessel (Class A1/A2) design. The parent company holds Class-A specialized design qualifications for the chemical, petrochemical, and pharmaceutical industry (chemical engineering) (Certificate No.: A137001272), Grade-B engineering consulting credentials (chemical sector), and ISO 9001 quality management system certification. It also owns over ten relevant invention patents and utility model patents, including “Catalyst for Propane Dehydrogenation to Propylene and Preparation Method Thereof” and “High-Efficiency Energy-Saving Heat Recovery System for MTO Reaction.” Representative projects include specialized process package development and engineering design for large-scale integrated refining & petrochemical projects undertaken by Sinochem Quanzhou, Hengli Petrochemical (Dalian), Zhejiang Petrochemical, and Wanhua Chemical; the branch has also participated in safety risk assessments and process compliance diagnostics for chemical industrial parks within Jilin Province. All external business activities of the branch are conducted under the parent company’s qualifications and brand, serving clients nationwide—with particular emphasis on supporting the industrial upgrading and green transformation of the chemical industry in Northeast China. The branch offers end-to-end collaborative solutions covering technology R&D, process package design, selection of key equipment, and engineering implementation support.