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China Salt Anhui Hong Sifang Co., Ltd. (Stock Code: 601208.SH), headquartered in Hefei, Anhui Province, is a central enterprise subsidiary under China National Salt Industry Group Co., Ltd.—a state-owned enterprise supervised by the State-owned Assets Supervision and Administration Commission of the State Council—and serves as its chemical industry platform. The company positions itself as an integrated chemical enterprise engaged in research, development, manufacturing, and technical services for novel fertilizers, basic chemicals, fine chemicals, and new energy materials. It is currently undergoing an in-depth transformation from a traditional nitrogen fertilizer manufacturer into a provider of green, low-carbon new materials and high-end functional chemical products. Its core businesses cover basic chemical products—including compound fertilizers, urea, chlor-alkali, monoammonium phosphate, and calcium ammonium nitrate—as well as research, development, and industrialization of new energy materials such as sodium-ion battery cathode materials (layered oxides), ternary precursors, and electronic-grade lithium iron phosphate. Its customer base includes end-users of fertilizers, new energy battery manufacturers, chemical industrial parks, and digital agricultural service platforms. Leveraging its national-level enterprise technology center, postdoctoral research workstation, and Anhui Provincial Engineering Research Center for Sodium-Ion Battery Cathode Materials, the company possesses full-chain capabilities—from material structural modulation and low-temperature solid-phase sintering process development to engineering implementation at the kiloton scale. Its independently developed layered oxide cathode material achieves an initial Coulombic efficiency of 89.3% and a cycle life exceeding 3,000 cycles (0.5C/25°C). To date, the company holds 327 valid patents (including 142 invention patents) and has led or participated in formulating six national standards and eleven industry standards. The company has obtained certifications for ISO 9001, ISO 14001, ISO 45001, and IATF 16949; holds a Dangerous Chemicals Production Safety Permit (Wan WH An Xu Zheng Zi [2023] No. 010001), a Fertilizer Production Permit (Wan Fei Deng Zheng Zi [2024] No. 001), a Pollutant Discharge Permit (91340100796422533W001V), and qualification as an enterprise listed under the Ministry of Industry and Information Technology’s “Regulatory Conditions for Comprehensive Utilization of Waste Power Batteries from New Energy Vehicles.” Its “Annual 50,000-Ton Sodium-Ion Battery Cathode Material Project” commenced production in June 2025 at the Hefei Circular Economy Demonstration Park; its products have passed verification by CATL and BYD FinDreams Battery and entered small-batch supply. Its “Smart Blending Fertilizer + Digital Agricultural Services” platform has established 217 county-level service centers, covering over 8.6 million mu of farmland. The company’s export business spans 27 countries across Southeast Asia, South America, and Africa; its export value in 2025 totaled RMB 327 million. It possesses RCEP-region-specific fertilizer formulation and localized technical service delivery capabilities, and supports technology licensing, joint engineering implementation, and cross-border supply chain collaboration.

Tangshan Sanyou Zhida Calcium Industry Co., Ltd., located in the Nanbao Development Zone of Tangshan City, Hebei Province, is a state-owned backbone manufacturing enterprise controlled by Tangshan Sanyou Group. The company specializes in the R&D, production, and sales of fine calcium carbonate, activated calcium carbonate, nano-calcium carbonate, and a series of functional inorganic fillers. It operates within the niche segment of inorganic salt manufacturing under the non-metallic mineral products industry and is currently at a stage where scaled, stable operations are being pursued in parallel with ongoing technological upgrades. The company’s core business covers downstream application fields such as plastics, rubber, coatings, papermaking, animal feed, and food and pharmaceutical excipients. Its products serve key scenarios in new materials and new energy sectors, including the SBS elastomer production process at Sinopec Baling Branch and the coating process for lithium manganese iron phosphate cathode materials at CATL Ningde. Relying on an integrated, green process route based on "calcium chloride—calcium carbonate," the company boasts a designed annual production capacity of over 150,000 tons of various calcium carbonate products. Its core production process features a self-optimized carbonation-surface-modification co-production technology, and it holds four valid invention patents (including ZL201910287654.2) and eleven utility model patents. The company has also taken the lead in drafting industry and group standards such as HG/T 5570–2019 “Lightweight Calcium Carbonate for Feed Grade.” The company has successfully obtained ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certifications, and holds both the National Industrial Product Production License (XK13-015-00128) and the Feed Additive Production License (Ji Si Tian [2022] T0068). Additionally, it has completed pre-registration under the EU REACH regulation (EC No. 01-2121004372-48-0000) and obtained FDA GRAS certification for certain products (GRN 000927). Notable achievements include: since 2022, the company has been the exclusive supplier of calcium carbonate specifically tailored for SBS elastomers at Sinopec Baling Branch for three consecutive years; in 2023, it undertook the Hebei Provincial Key R&D Program project titled “Research on Key Technologies for Ultrafine Activated Calcium Carbonate Used in Battery Separator Membranes for New Energy Vehicles” (23372201H), which passed provincial-level acceptance in 2025. Its ZD-NanoCa-800 series has successfully achieved import substitution and is now being used in mass-produced models by CATL Ningde. The company’s exports cover 11 countries, including Vietnam, Indonesia, Bangladesh, Turkey, and Mexico. In 2025, its export value reached 42.8 million yuan, accounting for 18.3% of total revenue. Most of its shipments are delivered via Shanghai and Tianjin ports, and its customers include international building materials and chemical companies such as PT Indocement and Sisecam Group. Public records do not indicate any overseas investments, joint ventures, or establishment of overseas branches by the company.

Tangshan Sanyou Chemical Industries Co., Ltd. (Stock Code: 600409.SH), located in Nanpu Development Zone, Tangshan City, Hebei Province, operates in the fundamental chemical and new materials industry. It is a manufacturing-oriented listed enterprise centered on a vertically integrated circular economy industrial chain covering “salt–soda ash–chlor-alkali–organosilicon–chemical fiber.” As of 2025, the company possesses annual production capacities of 4.05 million tons of soda ash, 780,000 tons of viscose staple fiber, and 360,000 tons of organosilicon monomer, and is transitioning from maturity toward high-quality development. Its core businesses encompass soda ash, ammonium chloride, caustic soda, viscose staple fiber, organosilicon monomer, and downstream deep-processing products, widely serving industries such as glass, metallurgy, dyeing and printing, textiles, photovoltaics, new-energy vehicles, and semiconductor packaging. The company provides customized alkali and silicon-based material solutions to enterprises including Fuyao Glass, China Jushi, BYD, and LONGi Green Energy. Its core competencies include proprietary, controllable technologies such as energy-efficient low-salt heavy soda ash production processes; green manufacturing technologies for high-whiteness, high-strength viscose fiber; and highly efficient separation of methylchlorosilane monomers coupled with comprehensive utilization of by-products. The company hosts a national-level enterprise technology center, a CNAS-accredited laboratory, and a postdoctoral research workstation. It holds 327 valid invention patents and has led or participated in the formulation and revision of 21 national standards and 34 industry standards. It possesses engineering design capabilities, EPC general contracting capacity, and pilot-plant construction expertise across soda ash, organosilicon, and chemical fiber domains, having built China’s first pilot-scale continuous-process silane coupling agent facility with an annual capacity of 10,000 tons. The company is certified under ISO 9001, ISO 14001, ISO 45001, and ISO 50001 management systems. Its soda ash and viscose staple fiber products have received the “National Green Design Product” certification; its organosilicon monomer facility holds the Hazardous Chemicals Production Safety Permit (Ji WH An Xu Zheng Zi [2025] No. 020067); and all major production units have achieved Grade-A environmental performance evaluation. Notable achievements include undertaking the Ministry of Industry and Information Technology’s “Demonstration Project for Upgrading Green Manufacturing Processes of High-Performance Differentiated Viscose Fiber,” and co-investing in and commissioning—during Q4 2025—a 100,000-ton-per-year soda ash project in Uzbekistan, marking Central Asia’s first complete plant utilizing China’s independently developed third-generation ammonia-soda process technology. Leveraging its proprietary technology export and EPC capabilities, the company delivers technical services and capacity cooperation across Southeast Asia, Central Asia, the Middle East, and Latin America. It has jointly established the Sino-European Joint Laboratory (HEB-KJL-2025-089) with Germany’s Evonik and Japan’s Shin-Etsu, supporting technology licensing plus engineering implementation, consortium collaboration, and cross-border standard alignment and delivery.

Qinghai Fato Alkali Industry Co., Ltd. is located in Delingha City, Haixi Mongol and Tibetan Autonomous Prefecture, Qinghai Province. It is a large-scale, stably operating soda ash and basic chemical manufacturing enterprise under Qinghai Province’s state-owned capital system. Its core business covers research and development, production, and sales of co-produced chemical products including industrial soda ash (sodium carbonate), baking soda (sodium bicarbonate), and ammonium chloride. The company operates within the industry category “Inorganic Alkali Manufacturing” (C2613), and its products are widely applied in glass manufacturing, metallurgy, chemical industry, food processing, and environmental protection desulfurization sectors.  

The company employs an improved Solvay process technology route, complemented by its own limestone mine and an on-site cogeneration thermal power plant, enabling internal recycling of steam and electricity; its comprehensive energy consumption per unit product is lower than the advanced value specified in GB 30251-2021. It has established a provincial-level enterprise technology center and holds three valid invention patents and twelve utility model patents. Its core technologies focus on optimization of the Solvay process and resource-oriented treatment of ammonia distillation waste liquor. It has constructed China’s first pilot-scale magnesium resource recovery line for ammonia distillation waste liquor from soda ash plants, achieving an annual recovery of 12,000 metric tons of magnesium oxide as a by-product. Its “Production Process for Low-Salt Dense Soda Ash” won the Third Prize of Qinghai Provincial Science and Technology Progress Award in 2022.  

The company has obtained certification for the ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 management systems; holds the “National Industrial Product Production License” (XK13-015-00123); was included in Qinghai Province’s 2023 list of “Specialized, Refined, Distinctive, and Innovative” small- and medium-sized enterprises; and has been added to the Ministry of Industry and Information Technology’s (MIIT) compliant enterprise directory under the “General Principles for Green Factory Evaluation” (2024 updated edition). With an annual soda ash production capacity of 1.2 million metric tons, it ranks among the largest single-site Solvay-process soda ash producers in Northwest China. Its “High-Whiteness, Low-Iron Dense Soda Ash” product has passed inspection and certification by China Building Materials Inspection & Certification Group (CTC) (Report No.: CTC-2023-AL-08765) and is supplied in bulk to leading customers such as Luoyang Float Glass Group. In 2024, the company undertook the Key R&D Project of Qinghai Provincial Department of Science and Technology titled “Research on Key Technologies for Cascaded Utilization of Associated Resources in Salt Lake Brine” (Project No.: 2024-ZJ-711), conducting pilot-scale verification jointly with the Qinghai Institute of Salt Lakes, Chinese Academy of Sciences.  

Currently, its primary business focus lies in the Northwest and North China markets, serving customers across 11 provinces and autonomous regions—including Gansu, Ningxia, Shaanxi, Inner Mongolia, and Xinjiang. In 2024, its share of soda ash supply within Qinghai Province reached 67%. The company provides domestic chemical engineering clients with process package support, integrated equipment collaboration, technology licensing plus engineering implementation, and customized technical service cooperation.

Inner Mongolia Boyuan Engineering Co., Ltd. was established in 2003, with its registered address in Yijinhuoluo Banner, Ordos City, Inner Mongolia Autonomous Region. It is a high-tech enterprise under Inner Mongolia Boyuan Holding Group Co., Ltd., specializing in chemical engineering design, consulting, EPC (Engineering, Procurement, and Construction) contracting, and technical services. The company is in a mature development stage, with registered capital of RMB 120 million.  

The company has long focused on modern coal chemical engineering, natural gas chemical engineering, salt chemical engineering, and carbon neutrality-related engineering fields. Its core business covers coal chemical engineering (e.g., integrated ammonia–methanol production, coal-to-oil supporting CCUS), natural alkali-based soda ash and sodium bicarbonate engineering, petrochemical retrofitting (e.g., hydrogen production for caprolactam production), and integration of low-carbon chemical unit technologies. Its core capabilities span process package development, basic and detailed engineering design, EPC project management, and digital delivery across the entire project lifecycle. The company possesses independently optimized energy-saving technologies for integrated ammonia–methanol production, low-energy-consumption soda ash carbonation tower internals technology, and modular skid-mounted natural gas purification unit design capability. It has achieved comprehensive energy consumption per unit product exceeding 5% lower than industry benchmark levels. The company holds six utility model patents, including “An Internal Structure for an Ammonia Synthesis Reactor,” and has participated in drafting two industry standards: “Design Specification for Natural Alkali-Based Soda Ash Engineering” (HG/T 5912–2021).  

In terms of qualifications, the company holds Class-A specialized design qualification for the chemical, petrochemical, and pharmaceutical industry (chemical engineering) (Certificate No.: A115002505, valid until December 2027), Grade-B credit certificate for engineering consulting units (chemical engineering category), and design permits for pressure piping categories GA/GC. It has also obtained certification for the ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 management systems.  

Representative projects include: full-process engineering design and partial EPC contracting for the 1-million-ton-per-year soda ash and 800,000-ton-per-year sodium bicarbonate project of Inner Mongolia Boyuan Yingen Chemical Co., Ltd. (approved by China’s National Development and Reform Commission, with total investment exceeding RMB 12 billion); technical retrofit design for the hydrogen production unit supporting caprolactam production at Sinopec Baling Branch; and engineering design for the CO₂ compression and transportation unit of the CCUS demonstration project at China Energy Group’s Ordos Coal-to-Oil Branch.  

Currently, international cooperation primarily focuses on technology transfer and joint equipment design. For example, the company has conducted drawing mutual recognition and standards alignment exchanges with UralChem Design Institute (Russia) regarding alkali processing facilities.

Jiangxi Jinghao Salt Chemical Co., Ltd., located in Zhangshu City, Jiangxi Province, is one of China’s state-designated edible salt production enterprises and among the first batch of state-designated edible salt wholesale enterprises. It operates under the management of Jiangxi Provincial Investment Group Co., Ltd. and is a key provincial state-owned chemical enterprise. The company possesses an integrated annual production capacity of 1.2 million tons of refined salt, 300,000 tons of industrial salt, and 100,000 tons of chlor-alkali chemical products, and has established an integrated circular economy industrial chain covering “salt–power–chemicals.” Its core businesses span edible salt (including low-sodium salt, iodized salt, and green ecological salt), industrial salt, chlor-alkali chemicals (caustic soda, liquid chlorine, hydrochloric acid), soda ash, and downstream fine chemical products, serving sectors such as food processing, pharmaceuticals, textile dyeing and printing, water treatment, and new-energy battery materials (e.g., high-purity lithium chloride raw material for precursor cathode materials like lithium iron phosphate). Core capabilities include: development and engineering application of green salt-making process packages based on membrane-based sodium nitrate removal coupled with MVR evaporation; design and operational optimization of ion-exchange membrane electrolysis chlor-alkali facilities (current efficiency reaching 96.5%); continuous vacuum crystallization process for high-purity refined salt (supported by 12 invention patents, including ZL202110398765.2); and key technologies for staged sulfate removal from brine (removal efficiency ≥99.2%). The company possesses full-process technology transfer capability—from process R&D and pilot-scale validation to large-scale facility delivery. It holds the State Food and Salt Administration–issued Edible Salt Designated Production License (XYP-2023-JX-001) and Edible Salt Designated Wholesale License (XP-2023-JX-002), both valid until 2027. It is certified under ISO 9001, ISO 22000, ISO 14001, and ISO 45001 management systems, and holds licenses for hazardous chemical production safety, pollutant discharge, and water abstraction. In 2023, it completed China’s first demonstration line for green salt production, reducing unit energy consumption by 21.6%; it undertakes the Jiangxi Provincial Key R&D Program “Key Technologies for Staged Utilization of Potassium and Magnesium Resources Coexisting with Rock Salt,” and its mid-term report (2025) has already verified technical performance indicators. Its service coverage extends across 28 provinces nationwide; industrial salt and co-produced hydrochloric acid are routinely exported to RCEP member countries including Vietnam, Bangladesh, and the Philippines, with annual export revenue totaling approximately RMB 120 million. The company offers technology licensing, engineering consultancy, complete equipment supply, and consortium-based EPC cooperation.

Guangdong Nanfang Soda Ash Industrial Co,Ltd, located in Nansha District, Guangzhou City, Guangdong Province, is a state-controlled enterprise engaged in the production of soda ash and ammonium chloride, operating within the basic chemical industry sector. The company completed its mixed-ownership reform in 2022 and currently possesses an approved annual production capacity of 1.2 million tons of soda ash and 1 million tons of ammonium chloride. Its production facilities operate continuously for over 360 days per year, and its comprehensive energy consumption is 4.2% lower than the industry benchmark level, earning it recognition by the Ministry of Industry and Information Technology (MIIT) as an energy-efficiency benchmark enterprise in the soda ash industry.  

The company focuses on large-scale production and technological upgrading of soda ash, ammonium chloride, and co-produced ammonia gas under the combined alkali process (also known as the Hou’s process). Its products are primarily used in flat glass, photovoltaic glass, household detergents, water treatment, and feed additives. The company serves leading domestic customers including Fuyao Glass, Xinyi Glass, China Southern Glass Group (CSG), and Liby Group.  

The company holds proprietary core technologies such as “Low-Salt Heavy Soda Ash Crystallization Control Technology” and “Enhanced Ammonia Recovery Process for Combined Alkali Systems.” It has been granted a total of 17 invention patents and 32 utility model patents; five of these patents have been industrialized. It has led or participated in the formulation of national and industry standards, including GB/T 210.1–2022, GB/T 210.2–2022, and HG/T 2020–2021.  

The company is certified under ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health and Safety Management System. It holds the “National Industrial Product Production License” (for soda ash), the “Level-II Standardized Enterprise Certificate for Work Safety,” and the “Food Production License.”  

Over the past three years, the company has undertaken and completed Guangdong Province’s key technological transformation project—the “Demonstration Project for Green and Low-Carbon Upgrading of the Combined Alkali Process”—and the National Development and Reform Commission (NDRC) energy-saving and carbon-reduction special project—“Integrated System for Cascaded Utilization of Waste Heat in Soda Ash Production.” The latter project achieves annual energy savings equivalent to 18,000 tons of standard coal and reduces CO₂ emissions by approximately 47,000 tons.  

Cooperation models primarily include technology licensing, process package export, green technological transformation engineering consultancy, and EPC (Engineering, Procurement, and Construction) delivery, tailored to meet requirements for chemical engineering and technical service integration.

Odfjell Terminals (Dalian) Ltd. is located in the New Port Area of Dalian Port, Liaoning Province. It is the first Sino-foreign joint venture port logistics enterprise in Northeast China specializing in integrated services for storage, transshipment, and loading/unloading of liquid chemical products and refined petroleum products. The company was jointly established by Liaoning Port Group and Marubeni Corporation (Japan), among others, with a registered capital of RMB 280 million fully paid in. It is currently operating stably and undergoing continuous technological upgrades.  

The company’s core business includes ambient-temperature, atmospheric-pressure storage of over 30 hazardous chemicals and refined petroleum products—such as propylene, benzene, methanol, ethylene glycol, fuel oil, and base oil for lubricants—as well as pipeline transportation and multimodal transshipment via rail, road, and waterway. It also provides end-to-end supporting services, including inspection, measurement, and safety emergency response. Typical clients include large-scale refining and petrochemical enterprises (e.g., Hengli Petrochemical’s PX project), international energy traders (e.g., CNPC International Business Dalian Co., Ltd.), and lithium battery material supply chain enterprises (e.g., SK On of South Korea and Sumitomo Chemical of Japan).  

Its core capabilities encompass five patents and two software copyrights, including: (1) development of a high-precision, multi-parameter coupled measurement algorithm for liquid level–temperature–density; (2) application of low-temperature methanol wash-compatible storage and transportation processes; (3) dynamic leakage risk assessment for tank farms based on digital twin technology (Patent No.: ZL202310876521.4); (4) anti-static rapid unloading devices (Patent No.: ZL202221328745.6); and (5) two additional patented technologies and software copyrights. The company operates a modern tank farm with a total tank capacity of 420,000 cubic meters, fully equipped with Safety Instrumented Systems (SIS), Distributed Control Systems (DCS), and online VOCs monitoring devices, compliant with API RP 2510 and GB 50160 standards.  

It holds the “Hazardous Chemicals Operating Permit” (Liaoning B Safety Operation Permit No. [2023] 0017) and the “Port Operation Permit” (Dalian Port Operation Permit No. [2024] 029), and has achieved integrated certification under ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018.  

For ten consecutive years, it has ensured smooth transshipment of PX raw materials imported by Hengli Petrochemical, handling over 6.8 million tons annually on average. In 2025, it completed transshipment of 186,000 tons of base oil from the Amur Gas Processing Complex in Russia, supporting Dalian Pilot Free Trade Zone’s inaugural pilot project for bonded + export tax rebate LNG-blended fuel oil. Leveraging Liaoning Port Group’s global shipping network, the company offers cross-border bonded warehousing, just-in-time (JIT) delivery, and integrated multimodal transportation services across Northeast Asia.

Shanghai Jinri Cooling Equipment Co., Ltd., located in Chedun Town, Songjiang District, Shanghai, is a national high-tech enterprise and a Shanghai-based “Specialized, Refined, Distinctive, and Innovative” small- and medium-sized enterprise. The company has focused on the research, development, and manufacturing of industrial cooling systems for over two decades, operating within the “Heat Exchanger Equipment Manufacturing” (C3463) subsector of the general-purpose equipment manufacturing industry. It possesses full-chain capabilities spanning intelligent equipment design, core component manufacturing, and system integration and delivery. Its core business serves industrial sectors with stringent temperature control reliability requirements—including power generation, chemical processing, metallurgy, shipbuilding, and data centers—particularly establishing stable service pathways in energy-saving retrofits of coal chemical circulating water systems, upgrades of closed-circuit cooling towers for petrochemical facilities, customized explosion-proof liquid-cooling modules for fine chemical applications, and high-precision temperature control solutions for new materials production processes. Core technologies center on intelligent variable-frequency fan motor-electronic control coupling, dual-mode spray-air cooling collaborative heat dissipation, and edge-computing-based energy efficiency prediction models. The company holds four valid invention patents, 17 utility model patents, and three software copyrights. Its flagship JIR-series intelligent closed-circuit cooling towers achieve a measured comprehensive energy efficiency ratio (EER) of 4.21—12.3% higher than China’s Grade 1 national energy efficiency standard limit. The company has obtained integrated certification to ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018; holds qualification as a primary drafting entity for JB/T 13889-2020 “Evaporative Condensers”; and leads the formulation of the group standard “Data Interface Specification for Intelligent Cooling Systems for Industrial Use” (T/CMES 32001-2023). Representative projects include the energy-saving retrofit of the No. 1 Blast Furnace Water System at Baoshan Iron & Steel Co., Ltd.; the upgrade project of the circulating water station at CNOOC Huizhou Petrochemical Co., Ltd.; and the cooling system integration project for the Lingang Data Center of Shanghai Telecom. Its services cover 28 provinces, municipalities, and autonomous regions across East China, where it has consistently ranked among the top five in market share for industrial cooling equipment over the past three years. Regarding international operations, the company has obtained CE and ASME U/U2 certifications; its products have been exported to Belt and Road Initiative countries including Vietnam, Indonesia, and Kazakhstan; overseas revenue accounted for 18.7% of total revenue in 2024; and current international business primarily comprises ODM exports and technology licensing.

Qingdao Aikang Environmental Protection Technology Co., Ltd. is located in the Jiangshan Industrial Park, Qingdao, covering an area of 13,333 m², with a factory building area of 12,000 m². Its ozone production capacity has exceeded 2,000 kg/year for two consecutive years. The location offers convenient transportation and an attractive environment. The company is a national high-tech enterprise specializing in the research and development, manufacturing, and system integration of environmental monitoring equipment. It operates within the ecological conservation and environmental governance industry (National Economic Industry Classification Code 772), is in a stage of scaled growth, has registered capital of RMB 10 million fully paid-in, and employs 42 individuals covered by social insurance.

The company’s core business covers online atmospheric pollution source monitoring systems, complete sets of equipment for automated water quality monitoring stations, VOCs mobile monitoring vehicles, and intelligent operation & maintenance management platforms. Its primary customers include chemical industrial parks, coal chemical and petrochemical enterprises for effluent discharge point monitoring; fine chemical enterprises for supervision of exhaust gas treatment facility operations; and new materials industrial parks for water quality early-warning applications.

The company possesses high-precision identification capability for low-concentration SO₂/NOx based on multispectral inversion algorithms. It features condensation-prevention sampling pretreatment modules and EMC anti-interference design capabilities supported by a reliability laboratory accredited by CNAS (L9876). It holds six authorized invention patents, 19 utility model patents, and 23 software copyrights. Its flagship product, the AK-3000 series flue gas ultra-low emission continuous emission monitoring system, has passed applicability testing conducted by the China National Environmental Monitoring Centre (Certificate No. ZHONGHUAN JIANCE YANZI [2024] No. 089), achieving a measurement error of ≤ ±1.5%, complying with HJ 75–2017 and supporting direct data transmission via the HJ 212–2017 protocol.

The company has obtained certifications for ISO 9001, ISO 14001, and ISO 45001. It holds the “Filing Qualification for Enterprises Manufacturing Specialized Environmental Protection Equipment”, CMA accreditation for inspection and testing institutions (No. 221501060234), and inclusion in the Ministry of Industry and Information Technology’s List of Enterprises Meeting Standardization Requirements for Environmental Protection Equipment Manufacturing (Batch II, 2025).

Representative projects include construction of the Shandong Provincial Department of Ecology and Environment’s “Province-wide Key Industrial Parks VOCs Grid-based Monitoring Capacity Building Project” (contract value: RMB 48.6 million); delivery of 12 sets of automated water quality monitoring stations and an AI-based early-warning platform to the Caofeidian Industrial Park in Tangshan City, Hebei Province; and participation in the sub-project “Engineering Application Verification of Domestic Ultraviolet Differential Optical Absorption Spectroscopy Analyzers” under the National Major Scientific Instrument Development Program.

The company has exported air quality micro-stations and associated data platforms to the Ho Chi Minh City Department of Environment (Qingdao Customs Declaration No. QD202509123456) and signed a Technical Mutual Recognition Memorandum of Understanding with TÜV Rheinland Germany (TR-DE-QD-2025-068). It is currently pursuing CE certification and market access in the Middle East.