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Beijing Qingxin Environment Energy-Saving Technology Co., Ltd. (headquartered in Beijing) is a national high-tech enterprise specializing in comprehensive industrial low-carbon environmental protection services. It was listed on the Shenzhen Stock Exchange in 2011 (stock code: 002573). Having evolved from an early flue gas treatment engineering contractor, the company has become a full-lifecycle solution provider covering technology R&D, core equipment manufacturing, EPC general contracting, concession-based operation, and digital platform services. As of the end of 2024, its total assets amounted to RMB 16.23 billion, with approximately 2,800 employees and over 60 wholly owned and controlled subsidiaries.  

The company’s core business focuses on ultra-low emission retrofits and deep pollution control for energy-intensive industries—including coal chemical, petrochemical, iron & steel, and cement sectors—while simultaneously expanding into environmental protection facilities supporting new energy development, integrated energy services for industrial parks, and carbon asset management. Its core technological capabilities include independent process package development and large-scale application: for example, the Single-Tower Integrated Desulfurization and Dust Removal Deep Purification Technology (SPC-3D) has been applied to over 200 domestic coal-fired power units rated at 300 MW or above, achieving SO₂ emissions <10 mg/Nm³ and particulate matter emissions <3 mg/Nm³; its Dual-Zone Coupled SCR denitrification technology and low-temperature synergistic catalytic oxidation technology for VOCs treatment have demonstrated proven engineering implementation capability. The company holds Class-A specialized design qualification for environmental engineering (atmospheric pollution control), Grade-I professional contracting qualification, and the “Environmental Pollution Control Facility Operation Qualification” (Class-A for atmospheric pollution control); it is certified under ISO 9001/14001/45001 integrated management systems and recognized as a National Enterprise Technology Center.  

Representative projects include the full-process ultra-low emission project for HBIS Group’s Tangshan New District (covering sintering, pelletizing, coking, and precision desulfurization of blast furnace gas across all production stages), the ultra-low emission retrofit for China Huaneng Group’s Yuhuan Power Plant (four 1,000-MW units), and the flue gas treatment EPC project for Indonesia’s Java-7 Power Plant (two 1,050-MW coal-fired units). In 2024, overseas revenue accounted for 8.6% of the company’s total revenue. Projects span Vietnam, Pakistan, Bangladesh, the United Arab Emirates, and preliminary technical adaptation studies for NEOM City in Saudi Arabia. Core equipment has obtained EU CE certification and ASME pressure vessel certification (USA), supporting technology licensing plus engineering implementation, consortium-based cooperation, and cross-border EPC delivery.

Anshan Yangtian Metallurgical Energy Technology Co., Ltd. was established in March 2006 as a new, comprehensive enterprise specializing in the production of flame-cutting equipment, cutting tools, and industrial cutting gases, integrating research on thermal cutting technologies, manufacturing, technical consultation, and on-site technical services. The company’s registered capital is RMB 50.5 million, with nearly 500 employees and an annual operating revenue of RMB 120 million.

The company has established business cooperation and sound cooperative relationships with numerous metallurgical enterprises, including Angang Steel Co., Ltd. Currently, it provides integrated services—including supply and maintenance of industrial gases, flame-cutting equipment, and tools, as well as technical services and consultation—to Angang Steel’s Bayuquan Branch, the General Steelmaking Plant, the Seamless Steel Tube Plant, and the Medium & Heavy Plate Business Unit. Committed to green, low-carbon, and environmentally friendly development, the company vigorously conducts technological research and development activities. It has jointly established the Anshan Functional Materials R&D Center with the Institute of Chemistry, Chinese Academy of Sciences, and engages in technological exchanges and cooperation with advanced enterprises and research institutions such as those in Germany and Harbin Institute of Technology. As a result, the company has evolved into a new, comprehensive enterprise integrating production, supply, sales, and R&D, with core businesses centered on metallurgical cutting and industrial gas production, possessing strong competitive advantages in the market.

The company consistently adheres to the business philosophy of “Integrity, Innovation, Service, and Win-Win,” winning customer satisfaction through high-quality products and attentive service. To realize its corporate vision of establishing Yangtian as the No. 1 brand serving the metallurgical industry, the company continuously enhances its core competitiveness, meets market demands, and generates superior economic and social benefits.

Anshan Iron and Steel Group Engineering Technology Co., Ltd. (registered address: No. 187, South Zhonghua Road, Tiandong District, Anshan City, Liaoning Province) is a state-owned high-tech enterprise wholly owned by Anshan Iron and Steel Group Co., Ltd. The company positions itself as a full-lifecycle service provider for metallurgical engineering, focusing on the green, intelligent, and low-carbon transformation and upgrading needs of the iron and steel industry. Its business scope covers engineering consulting, engineering design, engineering procurement and construction (EPC) contracting, intelligent equipment R&D, industrial software development, and digital delivery. The company was formerly the Anshan Iron and Steel Group Design Institute, established in 2004, completed its corporate system reform in 2021, and has been included in the State Council’s State-owned Assets Supervision and Administration Commission (SASAC) “Double Hundred Action” comprehensive reform pilot program. It serves as the supporting unit for the branch center of the “National Enterprise Technology Center” certified by the National Development and Reform Commission (NDRC), and is among the first batch of Liaoning Province’s “Specialized, Refined, Distinctive, and Innovative” (Zhuan Jing Te Xin) small- and medium-sized enterprises and engineering research center construction units. Its core business targets the entire process of ferrous metal smelting and rolling industries, with key services covering new construction and technological upgrades of blast furnace–basic oxygen furnace–continuous casting–rolling systems. It has also deeply expanded into mining engineering, energy and environmental protection (e.g., sintering flue gas desulfurization and denitrification, precision desulfurization of blast furnace gas, waste heat and waste energy recovery), and intelligent manufacturing (digital twin factories, AI-based visual quality inspection, unmanned overhead crane scheduling systems). Its core technical capabilities include: an intelligent blast furnace longevity diagnostic system based on multi-source heterogeneous data fusion; an AI-powered online surface defect recognition platform for cold-rolled strip steel (deployed at Angang Shares’ 2130 Cold Rolling Plant); and a three-dimensional collaborative design and BIM lightweight delivery platform for metallurgical engineering. The company holds 137 valid invention patents, 328 utility model patents, and 156 software copyrights, and has led the formulation of national and industry standards including the “Design Code for Coke Oven Gas Hydrogen Production Projects in Iron and Steel Enterprises” (YB/T 4985–2022). It possesses Class-A comprehensive engineering design qualifications, Class-A credit rating for engineering consulting firms (metallurgical specialty), Special Equipment Design License (pressure pipelines, categories GA/GC), ISO 9001/14001/45001 management system certifications, and Class-B qualification for classified information system integration. Representative projects include the overhaul project of Blast Furnace No. 2 (5,500 m³) at Angang Bayuquan Base; the intelligent upgrade project of the 1,780 mm hot strip mill unit at Benxi Iron and Steel Plate Co., Ltd.; the Phase II EPC general contracting project for HS1 Steelworks of Hoa Phat Group in Vietnam (including independently developed MES + Level-2 process control system); and the intelligent transformation project for two 180-ton converters at El Hadjar Integrated Steel Complex in Algeria (achieving full-package export of domestically developed Level-3 process control systems). Its international business spans 12 countries across Southeast Asia, South Asia, the Middle East, and Africa; all overseas projects are executed by domestic entities and subject to supervision by China’s Ministry of Commerce.