Shandong Bestsun Environmental Protection Technology Co., Ltd. is a high-tech enterprise specializing in industrial exhaust gas treatment and comprehensive VOCs (volatile organic compounds) control, dedicated to providing customized environmental protection solutions for key industries such as petrochemicals, chemical manufacturing, pharmaceuticals, and coating applications. The company’s core business encompasses environmental protection technology development, research and manufacturing of environmental protection equipment, engineering general contracting for pollution control projects, and operation and maintenance services for environmental protection facilities. Its core competencies focus on the localization adaptation and system integration of mature technologies, including “zeolite rotor + RTO,” “activated carbon adsorption + desorption catalytic combustion,” and low-temperature plasma coupled with photocatalysis, offering full lifecycle service capabilities—from solution design and equipment manufacturing to installation/commissioning and long-term operation and maintenance. The company holds Class-B specialized design qualifications for environmental engineering (atmospheric pollution control engineering) and Grade-III professional contracting qualifications for environmental engineering projects; it has obtained ISO 9001 Quality Management System and ISO 14001 Environmental Management System certifications. It owns 12 utility model patents and 3 software copyrights covering key technological areas such as multi-stage adsorption structure optimization, intelligent desorption temperature control systems, and modular RTO furnace design. Representative projects include constructing a VOCs treatment system with an air handling capacity of 80,000 m³/h for a large rubber enterprise in Shandong Province, delivering an EPC service for a centralized activated carbon regeneration center for a chemical industry park in Weifang, and participating in the 2023 Shandong Provincial Demonstration Project for Deep VOCs Control in Key Industries. While primarily serving enterprises, industrial parks, and environmental protection regulatory authorities within Shandong Province, the company accommodates various collaboration models, including technical consulting, equipment supply, EPC engineering, and entrusted operations.

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.

Wuhan Zhihong Sibo Environmental Protection Technology Co., Ltd. is a high-tech enterprise specializing in environmental monitoring and intelligent environmental protection solutions. Positioned within the ecological conservation and environmental governance industry, the company focuses on online monitoring of atmospheric pollution sources, VOCs (volatile organic compounds) control projects, and intelligent environmental protection supervision services. Its core business encompasses system integration for online monitoring of atmospheric pollution sources, design and implementation of VOCs control engineering, development of environmental big data platforms, and intelligent environmental protection supervision services. Its technological applications cover typical scenarios such as flue gas monitoring at stationary pollution sources, mobile VOCs monitoring capability construction in industrial parks, and odor source tracing and monitoring. Leveraging five utility model patents (e.g., clog-resistant sampling probes), seven software copyrights (including “Zhihong Sibo Environmental Data Platform V1.0”), rapid low-concentration VOCs detection algorithms, and embedded deployment of edge computing terminals, the company possesses end-to-end technical capabilities spanning hardware adaptation, algorithm optimization, and platform delivery. The company holds the “Qualification Certificate for Operation of Environmental Pollution Control Facilities” (for exhaust gas treatment, valid until February 2026), has passed ISO 9001:2015 Quality Management System and ISO 14001:2015 Environmental Management System certifications, and has been recognized as a National High-Tech Enterprise (Certificate No. GR202142003278) and registered for three consecutive years as a Science and Technology-based Small and Medium-sized Enterprise. It has successfully implemented the Hubei Provincial Department of Ecology and Environment’s key industrial park VOCs mobile monitoring supporting equipment supply project (awarded in 2022) and delivered customized exhaust gas treatment EPC services to chemical and surface treatment enterprises in Huangshi and Yichang. The odor source tracing and monitoring platform for the Xiangyang Automotive Parts Industrial Park (commissioned in 2023), constructed by the company, features multi-point networked monitoring, AI-based anomaly identification, and alert notification functions. Its business operations center on the Central China region with Hubei Province as the hub, serving government ecological environment regulatory authorities, industrial parks, and industrial enterprises through diversified cooperation models, including monitoring system integration, treatment engineering EPC, data platform development, and intelligent supervision services.

Tongxing Environmental Protection Technology Co., Ltd. (Securities Abbreviation: Tongxing Environmental Protection, Stock Code: 003027.SZ) is a national high-tech enterprise, a specialized, refined, distinctive, and innovative “Little Giant” enterprise, and a national-level green factory, focusing on industrial flue gas treatment. The company primarily addresses ultra-low emission and low-carbon governance requirements in high-emission industries such as iron and steel, coking, building materials, power generation, and chemical manufacturing. Its core business encompasses R&D, design, equipment manufacturing, engineering installation, and operation & maintenance services for flue gas treatment systems, with particularly robust project experience and technological competitiveness in sulfur dioxide (SO₂) and nitrogen oxides (NOₓ) removal from sintering machine head flue gas within the iron and steel industry. Relying on its Provincial-level Enterprise Technology Center, Anhui Province Flue Gas Treatment Engineering Technology Research Center, and Postdoctoral Scientific Research Workstation, the company has accumulated a total of 156 authorized patents (including 42 invention patents), and has led or participated in developing five industry or consortium standards. Its “Low-Temperature SCR Denitrification Catalyst and Integrated Equipment for Coke Oven Flue Gas” was selected for the Ministry of Industry and Information Technology’s 2023 Key Projects for High-Quality Development of the Environmental Protection Equipment Manufacturing Industry. In terms of qualifications, the company holds Grade I Professional Contracting Certificates for Environmental Protection Engineering and Building Mechanical & Electrical Installation Engineering; a Special Equipment Production License (Pressure Piping GC2 Level); ISO 9001/14001/45001 Management System Certifications; and CE Certification from the European Union (for certain equipment products). Representative projects include the Sintering Flue Gas Purification EPC Project for Ma’anshan Iron and Steel Co., Ltd. (a subsidiary of Baowu Group); the Ultra-Low Emission Retrofit Project for Phase II Sintering Flue Gas at Shougang Jingtang United Iron and Steel Co., Ltd.; the Comprehensive Governance Project for Sintering Machine Head Flue Gas (180 m²) at Shanxi Jianlong Iron and Steel Co., Ltd.; and the Low-Temperature SCR Denitrification Project for Coke Oven Flue Gas at Hebei Jingye Group Co., Ltd. Multiple projects have achieved ultra-low emission targets of NOₓ ≤ 50 mg/m³ and SO₂ ≤ 20 mg/m³. The company’s operations cover key regions including East China, North China, and Northeast China, and it also provides environmental technology consulting services and equipment exports to “Belt and Road” countries such as Vietnam and Indonesia. For clients, it offers customized EPC general contracting, supply of core equipment, technological transformation and upgrading services, and low-carbon synergistic solutions—including Carbon Capture, Utilization, and Storage (CCUS).

Shanghai Electric Group Co., Ltd. (601727.SH / 02727.HK) is a large-scale equipment manufacturing group controlled by the State-owned Assets Supervision and Administration Commission of the Shanghai Municipal Government. Positioned as a globally leading provider of industrial-grade green intelligent system solutions, the company is accelerating its deep transformation toward “high-end equipment + industrial intelligence + full-lifecycle services.” Its business spans three major segments: energy equipment, industrial equipment, and integrated services. Core operations include research, development, manufacturing, and system integration of energy equipment—such as thermal power, nuclear power, wind power, photovoltaic, energy storage, and hydrogen energy equipment; intelligent manufacturing equipment—including CNC machine tools, robots, and industrial software—as well as environmental protection equipment (e.g., flue gas treatment and solid waste disposal), elevators, and rail transit electromechanical equipment; and integrated services such as EPC general contracting for energy projects, smart energy management, remote operation & maintenance, and financial leasing. Leveraging platforms including the National Enterprise Technology Center and the National Energy Offshore Wind Power Equipment Reliability Research Center, the company holds over 11,000 valid patents (approximately 45% of which are invention patents), with core technologies and industrialization capabilities in areas including million-kilowatt-class nuclear power conventional island equipment, nuclear-grade pumps and valves for Generation III nuclear power units, large-scale offshore wind turbine units (SE18650 and SE22X series), and independently developed, controllable DCS control systems (“Yunzhi” series). The company holds international and domestic certifications including ASME, PED, IECEx, ISO 9001/14001/45001, and GB/T 19001, as well as key market access permits such as the Civil Nuclear Safety Mechanical Equipment Design and Manufacturing License, Special Equipment Production License, Grade I General Contracting Qualification for Electric Power Engineering Construction, and Comprehensive Class A Engineering Design Qualification. Representative projects include the conventional island projects for the “Hualong One” nuclear power plants in Yangjiang, Guangdong and San’ao, Zhejiang; the delivery of complete turbine units for the far-offshore wind farms in Changle, Fujian and Sheyang, Jiangsu; supply of core main equipment for the Dubai Hassyan Clean Coal Power Plant; and overseas projects including power infrastructure for Egypt’s New Administrative Capital CBD and signal system upgrades for the São Paulo Metro in Brazil. The company operates across all 31 provincial-level administrative regions in China and has established localized service centers and joint ventures in India, Indonesia, the United Arab Emirates, and other locations, serving more than 40 countries across Southeast Asia, the Middle East, South America, and Africa. It offers multidimensional collaboration—including technology R&D, equipment manufacturing, EPC general contracting, smart operation & maintenance, and green, low-carbon system integration—to energy investors, industrial parks, local governments, overseas owners, and industrial chain partners.