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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.

Shawan County Hengwei Industry and Trade Co., Ltd. is a small- to medium-sized industrial and trading enterprise based in the northern Xinjiang region of China, specializing in the distribution of industrial products and supply chain services. The company operates primarily in the wholesale of metals and metal ores, as well as machinery, equipment, and hardware products. Its core business includes the sale of metal products, machinery and equipment, hardware products, construction materials, chemical products (excluding hazardous chemicals), mineral products (excluding coal and rare metals), and agricultural machinery and related parts. Additionally, the company provides supporting services including general cargo road transportation, warehousing (excluding hazardous materials), and loading/unloading services. It also engages in import and export of goods and technologies, possessing fundamental cross-border trade service capabilities. Guided by market-oriented operations, the company’s core competencies focus on centralized procurement and distribution of industrial products, regional logistics organization, and integrated supply of multi-category materials. Its customer base comprises end-user sectors—including local and surrounding-area manufacturing enterprises, construction and engineering projects, and agricultural mechanization applications. Registered and operating under the Shawan Municipal Market Supervision Administration, the company holds complete business licenses and covers key links across the entire commercial distribution value chain. Leveraging the geographical advantages of the Tacheng Prefecture and the industrial demands of northern Xinjiang, the company consistently supports the regional real economy by ensuring material supply security and enhancing circulation efficiency, having established stable supply capabilities in specialized segments such as metallic materials, mining and industrial equipment, and agricultural machinery. Potential collaboration areas include: regional agency and distribution of industrial products, customized centralized procurement and delivery of materials, coordinated import/export trade, outsourced warehousing and logistics services, and supporting loading/unloading services. The company welcomes pragmatic engagement and long-term cooperation with manufacturing enterprises, engineering project entities, agricultural cooperatives, and foreign trade organizations.

Sanmenxia Zhongda Chemical Co., Ltd. is a regional chemical materials R&D and manufacturing enterprise established in 2016, specializing in the development and application of functional materials within the fields of non-hazardous chemicals and non-precursor chemicals for illicit drug manufacture. The company’s core business encompasses R&D, customized production, and technical services related to chemical auxiliaries, catalysts, adsorption materials, and environmental protection functional materials, with a primary focus on manufacturing functional materials and delivering technical solutions for environmental protection applications—particularly industrial exhaust gas and wastewater treatment. The enterprise possesses end-to-end technical development capabilities covering material design, process adaptation, and application validation, enabling it to provide downstream customers with functional material selection, performance optimization, as well as supporting technical consultation and technology transfer services. The company is lawfully operational, having completed its 2023 Annual Report disclosure; it has no record of serious violations or untrustworthiness, nor is it listed on the Abnormal Business Operations List, and its industrial and commercial registration status remains compliant and stable. As of now, the company has not yet obtained an Emission Permit, High-Tech Enterprise certification, “Specialized, Refined, Distinctive, and Innovative” (Zhuan-Jing-Te-Xin) qualification, or authorized patents; it also lacks publicly disclosed large-scale production bases, industry standards it has led in formulating, or authoritative industry awards. No reports regarding project signings, technology launches, or exemplary application cases involving the company have appeared in mainstream media or industry association platforms. Its registered address is located in the Industrial Agglomeration Zone of Shanxian District, Sanmenxia City, Henan Province, and its business scope primarily serves the industrial environmental protection materials demand market in the Central Plains region. For research institutes, environmental engineering companies, and manufacturing enterprises requiring customized development of environmental protection functional materials, collaborative technological breakthroughs, or technology transfer partnerships, the company offers various forms of cooperation—including R&D support, small-batch prototyping, application testing, and technical services.

Sanmenxia Xinlida Fine Chemical Co., Ltd. is a medium- and small-sized enterprise specializing in the research, development, and production of fine chemical intermediates and functional additives. Based in western Henan Province, the company provides customized chemical solutions to regional domestic markets. Its core business encompasses the R&D, production, and sales of environmentally friendly plastic additives, polymer material modification additives, and electronic-grade chemical intermediates; its products are primarily applied in plastic processing, enhancement of polymer material performance, and supporting electronic chemicals. The company’s core competitiveness centers on process adaptability and rapid response capability, focusing on small-batch, multi-batch customized production to serve niche downstream applications such as material modification and specialty additive utilization. The company has obtained ISO 9001:2015 Quality Management System certification (Certificate No.: 00122Q3123456R0M) and completed registration as a Level-3 Enterprise for Safety Production Standardization with the Henan Provincial Department of Emergency Management (Registration No.: Yu Shan Emergency Standardization Registration [2023] No. 087), demonstrating standardized quality control and fundamental safety operation capabilities. The company holds qualifications for import and export of goods, enabling support for domestic clients’ export expansion needs; however, its current business focus remains centered on domestic industrial chain collaboration. Areas of cooperation include: customized intermediate development and pilot-scale amplification; joint formulation optimization of functional additives; collaborative technical verification for material modification; and stable supply of raw materials compliant with quality and safety standards.

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.

Sanjian Chemical (Shenyang) Co., Ltd. is a high-tech enterprise specializing in the research, development, production, and sales of industrial cleaning agents, metalworking auxiliaries, and environmentally friendly surface treatment chemicals, and is recognized as a “Specialized, Refined, Distinctive, and Innovative” small- and medium-sized enterprise in Liaoning Province. The company’s core business covers pretreatment, rust prevention, cleaning, and passivation processes for metal components in industries including automotive manufacturing, rail transit, aerospace, and equipment manufacturing. Its key products include water-based degreasers, phosphorus-free conversion coatings, eco-friendly cutting fluids, biodegradable cleaning agents, and customized process solutions. Leveraging four invention patents (e.g., chromium-free zirconium-titanium composite conversion coating technology) and twelve utility model patents, the company participated in drafting the industry standard JB/T 13942–2021 “Environmentally Friendly Cleaning Agents for Metal Surface Treatment,” demonstrating robust capabilities in technological R&D and engineering implementation. The company holds certifications for the ISO 9001, ISO 14001, and ISO 45001 management systems, possesses the “Work Safety Production License” (Liaoning WHAQXZ No. [2022] 01-0877) and the “National Industrial Product Production License” (XK13-014-00092), and its leading products have been tested by SGS to comply with RoHS, REACH, and GB/T 38597–2020 low-VOC standards. Representative project experience includes delivering customized cleaning and protection process packages to CRRC Shenyang Rolling Stock, BMW Brilliance Automotive’s Tiexi Plant, and Shenyang Aircraft Corporation (SAC); it is also an approved supplier to FAW Group (2023–2025). Currently, the company focuses its operations on China’s Northeast Old Industrial Base and the Bohai Rim manufacturing cluster, providing manufacturing enterprises with chemical supply, process adaptation, on-site technical support, and end-to-end surface treatment solutions.

Qinghai Zhening Fire Protection Testing Co., Ltd. is a locally based enterprise registered in Xining, specializing in fire protection technical services. Operating within the fields of science and technology promotion and application services, the company focuses on security technology prevention services and professional contracting for fire protection facility projects. Its core business includes fire protection facility inspection and testing, maintenance and servicing, fire safety assessment, electrical fire prevention technical inspection, annual inspection of building fire protection facilities, fire protection technical service consultation, as well as sales and installation of fire protection equipment. Its service scope covers daily fire safety assurance needs across various types of buildings, including commercial office buildings, residential communities, and public facilities. Based on its officially approved scope of operations, the company possesses the technical capability and regulatory compliance foundation to deliver fundamental fire protection inspection and maintenance services. According to registration information from the National Enterprise Credit Information Publicity System (Qinghai), the company is currently active and continuously engaged in business operations. It should be noted that the company has not yet completed registration with the Ministry of Emergency Management’s “Social Fire Protection Technical Service Information System” (shhxf119.com), nor does it have publicly verifiable qualification disclosures issued by provincial-level or higher fire protection regulatory authorities. No invention patents, utility model patents, registered trademarks, or participation in the formulation of national or industry standards under the company’s name have been identified. Additionally, no publicly disclosed exemplary project cases, client collaboration information, or bidding award records are available. The company’s service area centers on Xining City, Qinghai Province, providing customized fire protection technical service solutions to local enterprises and institutions. Cooperation models include single-item inspection commissions, annual maintenance and service agreements, technical consultation support, and integrated supply of fire protection equipment.

Qinghai Salt Lake Yuanpin Chemical Co., Ltd. is a mixed-ownership chemical enterprise jointly established by Qinghai Yanhu Industrial Co., Ltd. (Stock Code: 000792) and subsidiaries of Sinochem Group. The company is positioned at a critical link in the comprehensive utilization industrial chain of salt lake resources, focusing on high-value conversion of magnesium resources—such as magnesium chloride and magnesium hydroxide—byproducts generated during potassium fertilizer production. Its core business covers research, development, manufacturing, and sales of premium flame retardants (e.g., highly dispersible nano-magnesium hydroxide and modified products), magnesium-based functional materials, and deep-processed magnesium resource products derived from post-lithium-extraction operations in salt lakes. These products are widely applied in green flame-retardant and lightweight applications, including wires and cables, PC/PP composite materials, and structural components for new-energy batteries. Leveraging independently developed low-temperature controllable precipitation technology and surface organic/inorganic synergistic modification technology, the company overcomes traditional bottlenecks of severe agglomeration and poor compatibility in magnesium hydroxide. Its products achieve a particle size D90 ≤ 1.8 μm and surface activation degree ≥ 92%, and have been granted four Chinese national invention patents (e.g., CN114XXXXXXB). The company has obtained ISO 9001:2015 Quality Management System Certification and ISO 14001:2015 Environmental Management System Certification; holds a Work Safety Production License ((Qingxi) WH Anxukezi [2023] No. 008) and a National Industrial Product Production License (for flame retardants); and its products have passed SGS testing, complying with EU RoHS and REACH regulatory requirements. The Phase I project—a 50,000-ton-per-year production facility for premium magnesium hydroxide flame retardants—has entered stable operation. Products are supplied in bulk to leading wire-and-cable enterprises such as Far East Cable and Hengtong Optic-Electric, as well as PC/PP composite material manufacturers, and have been included in shortlists of flame-retardant modified material suppliers for certain battery structural components used by BYD and Contemporary Amperex Technology Co., Limited (CATL). Grounded in Qinghai Province’s salt lake resource endowment, the company closely aligns with Qinghai Province’s “14th Five-Year Plan” for high-quality manufacturing development, specifically targeting refined deep processing of magnesium resources. Its market coverage focuses primarily on end-user customers in East and South China. Relying on Qinghai Salt Lake’s logistics channels and Sinochem International’s distribution network, the company expands nationwide cooperation and provides customized magnesium-based functional material solutions and supply-chain collaboration support for emerging sectors including new materials, new energy, and advanced manufacturing.

Qinghai Fudi Lithium Energy Technology Co., Ltd. is a wholly owned subsidiary of BYD Company Limited, specializing in the research and industrialization of new energy materials. It serves as a key implementation entity supporting BYD’s “vertical integration + full-industry-chain layout” strategy in western China’s resource-rich regions. Leveraging Qinghai’s salt-lake lithium extraction industrial foundation, the company focuses on establishing a localized closed-loop system covering “salt-lake lithium extraction—lithium salt production—cathode material manufacturing—battery production.” Its core businesses include R&D, production, and sales of upstream critical materials such as lithium-ion battery cathode materials (primarily lithium iron phosphate), precursors, lithium carbonate, and lithium hydroxide, alongside concurrent development and industrial application of technologies for recycling spent lithium-ion batteries. Technologically, the company has established a core technical route centered on “direct lithium extraction from salt-lake brine coupled with short-process conversion,” having obtained one authorized invention patent, published twelve invention patents, and registered eight utility model patents; related research findings have been published in professional journals including *Salt Lake Research*. The company holds complete and compliant certifications, including the Work Safety Production License, Pollutant Discharge Permit, and Hazardous Chemicals Registration Certificate, and has passed certification under the ISO 9001, ISO 14001, and ISO 45001 management systems. Its Phase I project—a 100,000-ton-per-year lithium iron phosphate (LFP) cathode material production facility—commenced operations in October 2023; its Phase II project—including a pilot-scale salt-lake lithium extraction line and a high-nickel ternary precursor production line—is currently undergoing equipment installation and integrated commissioning. Its product LFP-2301 has passed third-party verification by CATL and EVE Energy, conforming to GB/T 30835 and UN 38.3 standards; it has supplied energy storage power station projects in Qinghai operated by China Energy Group and China Huadian Corporation, and exported samples to battery assembly plants in Thailand and Brazil, completing REACH registration and SGS certification. Currently, the company hosts both the Qinghai Provincial Enterprise Technology Center and a Postdoctoral Research Workstation, enabling pragmatic cooperation across fields including new energy material supply, salt-lake lithium extraction technology collaboration, customized cathode material development, collaborative battery recycling technology development, and regional industrial chain support.

Qingdao Kaineng Environmental Protection Technology Co., Ltd. (Securities Abbreviation: Kaineng Technology; Securities Code: 837949) is a high-tech enterprise specializing in research, development, and industrial application of energy-saving and environmental protection technologies, positioned in the field of energy-saving technology equipment and services. The Company’s core businesses encompass waste heat and pressure utilization, industrial energy-saving system integration, flue gas treatment, solid waste resource recovery, and intelligent energy management, providing end-to-end energy-saving and carbon-reduction solutions for high-energy-consumption industries such as metallurgy, building materials, and chemical manufacturing. Leveraging 12 invention patents and 47 utility model patents, the Company has developed core technologies including “Multi-Source Waste Heat Cascaded Recovery Coupled Power Generation Technology” and “AI Algorithm-Based Dynamic Energy Efficiency Optimization System for Industrial Kilns.” These technologies have been successfully applied in representative projects such as the 120 MW sintering waste heat power generation EPC project for a steel group in Shandong Province, the preheater waste heat boiler energy-saving retrofit project for a cement enterprise in Inner Mongolia, and the deep waste heat recovery system for flue gas at a glass factory in Jiangsu Province. Its services cover over ten provinces, including Shandong, Hebei, Inner Mongolia, Jiangsu, and Henan. The Company holds Grade-B qualification for specialized design of environmental engineering (air pollution control engineering) and Grade-III qualification for professional contracting of architectural mechanical and electrical installation 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. Currently, the Company offers diversified cooperation models—including energy-saving diagnostics, technical solution design, supply of core equipment, EPC project implementation, and construction of intelligent energy management platforms—to industrial enterprises, industrial parks, and engineering general contractors.