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Sanmenxia Sinovia Pharmaceutical Co., Ltd. is a high-tech enterprise specializing in the research, development, production, and sales of chemical active pharmaceutical ingredients (APIs) and pharmaceutical intermediates, with long-standing expertise in the macrolide antibiotic field. The company’s core business includes large-scale production of APIs such as azithromycin, clarithromycin, and roxithromycin, as well as independent synthesis and process optimization of related high-value pharmaceutical intermediates; its products are widely used in the manufacturing of anti-infective formulations. Leveraging a fully vertically integrated and independently controllable production process, the company achieves a self-sufficiency rate of over 95% for key intermediates, with crystallization yields and optical purity reaching internationally advanced levels. The company holds a “Pharmaceutical Production License” (YU20160019), covering APIs, intermediates, and certain formulations, valid until April 2026. Its azithromycin API has obtained the European Directorate for the Quality of Medicines & HealthCare (EDQM) Certificate of a Suitability of a Monograph to the European Pharmacopoeia (CEP) (CEP 2022-375, valid until 2027) and successfully passed an on-site inspection by the U.S. Food and Drug Administration (FDA) in October 2023, thereby qualifying it for continuous supply to mainstream markets in Europe and the United States. The company is certified under ISO 9001:2015 for its quality management system and was consecutively recognized as a National High-Tech Enterprise in 2021 and 2024 (Certificate No. GR202141000287; Record No. GR202441000312). In intellectual property, it holds six granted invention patents and twelve utility model patents, focusing on crystallization process optimization, impurity control, and green synthetic pathways. The company has long served renowned domestic and international pharmaceutical enterprises, including Huadong Medicine, Pule Pharmaceutical, Cipla (India), and STADA (Germany), through customized API supply, joint process development, and targeted intermediate collaboration. It currently has no controlling subsidiaries or overseas entities, nor any record of initial public offering (IPO) or bond issuance, and remains focused exclusively on specialized, high-quality API and intermediate industrial services.

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.

Quanjiao Koolide Electronic Materials Co., Ltd. is a high-tech enterprise specializing in the research, development, production, and sales of electronic-grade chemical reagents, positioned as a key supplier of wet electronic chemicals for the semiconductor and broader semiconductor industries. The company’s core business covers high-purity etchants, cleaning solutions, and developers—complementary chemicals for electronic specialty gases—required by industries such as integrated circuits, display panels (LCD/OLED), LEDs, and advanced packaging. Its products meet the SEMI C12 purity standard and possess ppb-level control capability for metallic impurities. Leveraging independent R&D capabilities, the company has developed core technologies including formulation stability control, deep removal of trace impurities, and process compatibility adaptation, holding three invention patents and five utility model patents. The company operates a standardized production workshop compliant with ISO 9001:2015 and holds the following licenses: Work Safety Production License (Anhui WH Safety Permit No. [2023] 08-0047), Hazardous Chemicals Business License (Anhui Chuzhou Quanjiang Hazardous Chemicals Business Permit No. [2023] 0062), and Pollutant Discharge Permit (No. 91341124MA8PQJYF1C001V). Its Phase I project—a 3,000-ton-per-year electronic-grade wet electronic chemicals production facility—officially commenced operations in June 2023 and passed environmental acceptance inspection (Quan Environmental Acceptance No. [2023] 31). Its products have been incorporated into the supply chains of leading domestic wafer fabs and panel manufacturers, including SMIC, CXMT, and BOE. The company is designated as a key project under Anhui Province’s “Dual Recruitment and Dual Introduction” initiative and is supported as a new materials enterprise under the “Chuzhou Municipal 14th Five-Year Plan for Strategic Emerging Industries.” In 2024, it was selected for Anhui Province’s list of specialized, sophisticated, distinctive, and innovative small and medium-sized enterprises (SMSEs). Serving upstream and downstream customers across the industrial chain, the company offers customized formulation development, small-batch validation, large-scale stable supply, and technical collaboration services.

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 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 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.

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 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.

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.