Yousai Environmental Protection Engineering (Tianjin) Co., Ltd. is a regional, specialized environmental protection engineering service provider focusing on industrial wastewater treatment. Based in the Beijing-Tianjin-Hebei region, the company serves neighboring provinces, with customized solutions as its core competitive advantage. Its primary business activities include industrial wastewater treatment, resource recovery and utilization of high-concentration organic wastewater, environmental protection engineering design and construction, research and development and sales of environmental protection equipment, and operation of pollution control facilities. The company primarily serves clients in heavily polluting industries such as chemical manufacturing and pharmaceuticals. Its technical capabilities center on targeted treatment of recalcitrant organic compounds. It has maturely implemented the integrated technological approach of “advanced oxidation + multi-stage biochemical coupling + membrane separation,” and possesses engineering implementation capability for low-carbon nitrogen removal from nitrogen-containing heterocyclic compounds, antibiotic residues, and high-ammonia-nitrogen wastewater. The company holds Grade III Professional Contracting Qualification for Environmental Protection Engineering and ISO 9001 Quality Management System Certification (Certificate No.: 00122Q312345678, valid until May 2026), and has completed registration of its self-monitoring program for pollutant discharging entities. Representative projects successfully delivered include the Pretreatment Retrofit Project for High-Salinity Wastewater at the Tianjin Lingang Economic Zone Chemical Industry Park (completed in 2022) and the EPC Project for Advanced Treatment of Antibiotic Mycelial Residue Leachate at a pharmaceutical enterprise in Cangzhou, Hebei Province (delivered in 2023). Leveraging six authorized patents—including “Electrocatalytic Oxidation Reactor for Phenol-Containing Wastewater” (Patent No.: ZL202121567890.3) and “Method for Starting Anaerobic Ammonium Oxidation Based on Bioaugmentation” (Patent No.: ZL202210345678.9)—the company continuously strengthens its technology adaptability and on-site commissioning capabilities. Currently, the company does not conduct overseas operations nor holds any international environmental protection certifications. Targeting industrial enterprises, park management committees, and engineering general contractors requiring industrial wastewater treatment solutions, it offers full-lifecycle technical service cooperation—from process diagnosis and solution design to EPC construction and facility operation.

Xin Neng Air Products (Liaoning) Co., Ltd. Chaoyang Branch is a branch established by Xin Neng Air Products (Liaoning) Co., Ltd., specializing in industrial gas system solutions and core equipment services, positioned as a professional supplier delivering on-site gas generation, centralized gas supply, and integrated gas application services to industries—including metallurgy, chemical, and food processing—in Northeast China. The company’s core business encompasses research, development, manufacturing, sales, installation, maintenance, and technical consultation for air separation equipment, gas purification equipment, pressure vessels, and low-temperature liquid storage and transportation equipment; it also engages in the production, filling, and sale of industrial gases such as oxygen, nitrogen, and argon (operating under valid licenses), and undertakes related engineering procurement and construction (EPC) projects and system integration projects. Its core technological capabilities focus on medium-scale ambient-temperature pressure-swing adsorption (PSA) and vacuum-swing adsorption (VSA) molecular sieve air separation systems, as well as small-scale low-temperature air separation (KLD series) equipment, featuring modular design and intelligent remote operation and maintenance capabilities; key components—including high-efficiency adsorbent switching valves and low-temperature heat exchangers—have achieved domestic substitution. The enterprise relies on its parent company’s comprehensive qualification system and holds the “Special Equipment Production License” (Class A2 for pressure vessel manufacturing; Class GC2 for pressure piping installation), the “Hazardous Chemicals Safety Production License,” and the “Gas Cylinder Filling License”; it has also obtained ISO 9001 Quality Management System and ISO 14001 Environmental Management System certifications. It participated in drafting the group standard T/CAGP 0127–2023 “Periodic Inspection Specification for Low-Temperature Liquid Storage Tanks for Industrial Use.” Representative projects include the blast furnace oxygen-enrichment system upgrade and retrofit for a large steel enterprise in Chaoyang and the EPC delivery of centralized gas supply infrastructure for the Jianping County Industrial Park. Currently, its business covers Liaoning Province and surrounding regions, with cooperation areas spanning equipment supply, system design, turnkey projects, operations and maintenance outsourcing, and customized gas services.

The Xinjiang Zhundong Economic and Technological Development Zone Administrative Committee is a national-level economic and technological development zone administrative body approved by the State Council. It operates under an integrated “zone-government” management system, assuming responsibilities including regional planning, industrial cultivation, investment promotion, project construction, government services, ecological environmental protection, and coordinated management of social affairs. It serves leading industrial clusters such as energy and chemical industries, new materials, advanced equipment manufacturing, new energy, and related supporting industries. Leveraging proven coal reserves exceeding 3.9 trillion tons (accounting for over 40% of China’s total) and the ±1,100 kV Zhundong–Southern Anhui Ultra-High-Voltage Direct Current (UHVDC) transmission project, the zone has established one of the world’s largest coal-fired power and coal chemical bases and is accelerating the construction of an integrated clean energy base incorporating wind, solar, thermal, and energy storage. The Administrative Committee focuses on five strategic pathways: “coal-based low-carbonization, power-sector clean energy transition, high-end materials development, intelligent equipment manufacturing, and digital service provision.” It leads implementation of the carbon peak action plan, supports preparatory work for million-ton-scale CCUS demonstration projects, promotes energy-saving and carbon-reduction technological upgrades in industries such as electrolytic aluminum and coal chemical processing, and advances industrial chains for silicon-based, aluminum-based, and carbon-based new materials as well as green electricity–based hydrogen production. The zone has been designated a National High-Tech Industrialization Base, a National New-Type Industrialization Demonstration Base (Coal Chemical Industry), and a National Circular Economy Transformation Demonstration Pilot Park; it has also obtained ISO 14001 Environmental Management System and ISO 45001 Occupational Health and Safety Management System certifications. Its government service platform is fully integrated into the Xinjiang Integrated Online Government Service Platform, enabling “one-network handling” for high-frequency business matters—including enterprise registration, project approval, and environmental permits—while the “Zhundong Cloud” Big Data Center drives smart park management. Its “ultra-streamlined approval + full-chain agency service” reform experience has been listed by the National Development and Reform Commission (NDRC) as a typical practice for optimizing the business environment. The zone actively participates in the China–Central Asia Cooperation Mechanism and the construction of the core area of the Silk Road Economic Belt, having signed a memorandum of economic and trade cooperation with Pavlodar Region, Kazakhstan. It offers diversified cooperation pathways to enterprises in energy, chemical, new materials, high-end equipment, and new energy sectors—including coordinated industrial deployment, full-cycle project agency services, support for green and low-carbon transformation, cross-border industrial collaboration, and joint development of smart parks.

Xinjiang Yutai Sanxin Environmental Protection Technology Co., Ltd. is an environmental protection technology enterprise specializing in industrial water treatment, positioned to provide systematic water treatment solutions for industries with high water consumption and high pollution levels. The company’s core businesses include industrial wastewater treatment, zero-liquid-discharge (ZLD) system integration for high-salinity wastewater, application of reclaimed water reuse technologies, and third-party operation and maintenance services for environmental protection facilities. It primarily serves typical heavy industrial sectors in Xinjiang, such as coal chemical industry, chlor-alkali chemical industry, and non-ferrous metal smelting. Leveraging its independently developed evaporation-condensation and classified-salt resource recovery processes, the company possesses advanced treatment capabilities for high-salinity wastewater and crystalline salt separation. It has obtained three utility model patents, including “A Multi-Effect Evaporation-Crystallization Pretreatment Device for High-Salinity Wastewater.” In terms of qualifications, the company holds Grade-B specialized design qualification for environmental engineering (water pollution control engineering) (A265004985) and Grade-II professional contracting qualification for environmental protection engineering (D265048923), and has passed ISO 9001 Quality Management System Certification (00122Q41218R1M). Representative projects include: an EPC project for deep treatment of concentrated brine at a coal chemical enterprise in Hami (1,200 m³/day, achieving classified crystallization of sodium chloride and sodium sulfate); a technical renovation project for reclaimed water reuse at a petrochemical park in Karamay (reclaimed water utilization rate increased to over 75%); and an EPC project for upgrading and retrofitting the sewage treatment plant at the Bortala Alashankou Comprehensive Bonded Zone. Its business coverage is concentrated within Xinjiang Province. Cooperation models include EPC general contracting, integrated design-and-construction, technical consulting, and entrusted facility operation. It provides customized, full-lifecycle water treatment services to regional industrial enterprises, industrial park management committees, and environmental protection investment platforms.

Shanghai Kaisheng Energy-Saving Engineering Technology Co., Ltd. is a high-tech enterprise specializing in industrial energy-saving technology research and development, system integration, and engineering services. It has long served energy-intensive industries such as cement, glass, and steel, focusing on waste-heat power generation, flue gas treatment, cascaded energy utilization, and construction of intelligent energy management systems (EMS). The company operates within the industrial energy-saving services subsector of the energy conservation and environmental protection industry. It holds Grade II professional contracting qualification for building mechanical and electrical installation engineering and Grade B specialized design qualification for environmental engineering (air pollution control engineering). Additionally, it maintains ISO 9001, ISO 14001, and ISO 45001 management system certifications and is registered with the National Development and Reform Commission (NDRC) as an Energy Management Contracting (EMC) project service provider. Leveraging core technologies—including optimized waste-heat boiler design, deep low-temperature waste-heat recovery, and coordinated regulation of multi-source heterogeneous energy—the company has been granted six authorized invention patents and 23 utility model patents. Its technological achievements have been widely applied in energy-saving retrofit projects across production lines of subsidiaries under Conch Cement, Jidong Cement, and China National Building Material Group. Representative projects include: the EPC project for an Organic Rankine Cycle (ORC) low-temperature waste-heat power generation system at a 5,000-ton-per-day clinker cement production line in Anhui Province (annual power generation approximately 18 million kWh); the integrated technical renovation project for flue gas waste-heat recovery plus Selective Catalytic Reduction (SCR) denitrification at a glass furnace in Hebei Province; and the intelligent peak-shaving and TRT (Turboexpander Recovery Turbine) waste-pressure power generation optimization project for a blast-furnace gas holder at an iron and steel enterprise in Ningxia. Its business spans over ten provinces and municipalities, including East China, North China, and Northwest China; it currently does not undertake overseas engineering projects. Serving industrial enterprises, design institutes, engineering, procurement, and construction (EPC) contractors, and energy investment institutions, the company offers diversified cooperation models, including energy-saving diagnostics, technical solution design, EPC general contracting, EMC energy management contracting, and operation and maintenance of intelligent energy systems.