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.

Sinopec Nanjing Engineering Company undertakes FEED (basic engineering design) services in Kazakhstan's natural gas chemical complex project, which is an important case of Sinopec Design Institute playing a technical support role in upgrading Kazakhstan's chemical industry, and also a typical demonstration of Chinese engineering enterprises participating in the 'the Belt and Road' Central Asia chemical project.

PipeChina (Fujian) Emergency Maintenance Co., Ltd. is a Level-3 subsidiary wholly owned by China National Petroleum and Natural Gas Pipeline Network Group Co., Ltd., a central state-owned enterprise. The company is registered in Fuzhou City, Fujian Province, was established on December 24, 2021, and has a registered capital of RMB 50 million. It is positioned as the core force of the oil and gas long-distance pipeline safety operation assurance system along the southeast coast of China, focusing on emergency response, rapid repair, risk prevention and control, and intelligent operation & maintenance support. Its core business covers 24-hour emergency response to incidents involving long-distance pipelines transporting natural gas, refined oil, and other media—including sudden leaks, geological disaster damage, and third-party damage—providing end-to-end technical services such as on-site plugging, pipe section replacement, non-destructive testing (NDT) of weld joints (including X-ray digital radiography [DR]), corrosion repair, and post-disaster assessment. The company also undertakes responsibilities including coordinated monitoring and early-warning for high-consequence areas, standardized support for maintenance and repair operations, and operation & maintenance of the emergency resource dispatch platform. Its technical capabilities are built upon the “Pipeline Integrity Management Platform” and the “National Oil & Gas Pipeline Emergency Command Center” of China National Pipeline Network Group, enabling GIS + IoT real-time operational condition monitoring, digital twin–assisted decision-making, and application of fully automated hydraulic plugging equipment. The company has obtained the “Special Equipment Installation, Modification, and Repair License” (for pressure pipelines), the “Construction Enterprise Qualification Certificate” (Level-3 qualification for petrochemical engineering), and the “Work Safety Production License”, and has passed certification under the three major management systems: ISO 9001, ISO 14001, and ISO 45001. It has participated in emergency drills for geological disasters during the flood season on the Fujian-Guangdong Branch Line and joint field-response operations addressing third-party construction damage on the East Section of the West-East Gas Pipeline Phase III. It has completed multiple urgent repairs on the Fuzhou–Sanming natural gas branch pipeline. Its service coverage spans the entire Fujian Province and extends to cross-provincial emergency coordination and support with neighboring provinces including Zhejiang, Guangdong, and Jiangxi. It delivers professionalized, standardized, and interoperable pipeline emergency technical services and regional collaborative prevention-and-control solutions to owners of energy infrastructure, local government emergency management departments, and industry partners.

Beijing Qingxin Environment Technology Co., Ltd. (Securities Abbreviation: Qingxin Environment; Securities Code: 002573.SZ), headquartered in Beijing and established in 2001, is currently a mixed-ownership listed company under state-owned control, affiliated with Sichuan Development (Holdings) Co., Ltd. (Stock Code: 002573). The Company focuses on water services investment and operations, industrial flue gas treatment, and energy services, while actively developing high-end energy-saving and environmental protection equipment manufacturing. It is an integrated environmental protection service group encompassing technology R&D, operation and maintenance services, equipment manufacturing, engineering design, and construction. As of now, Qingxin Environment’s total assets amount to RMB 25 billion. The Company holds a National Enterprise Technology Center, a Postdoctoral Research Workstation, and multiple experimental bases; it employs over 7,000 industry professionals and operates in more than 10 countries worldwide. It is a national high-tech enterprise specializing in industrial flue gas treatment, energy conservation and carbon emission reduction, resource recycling, and comprehensive ecological environment governance. The Company was listed on the Shenzhen Stock Exchange in 2011 and is currently transitioning from a mature-stage enterprise to an ecological platform enterprise. Its core businesses cover ultra-low emission retrofits and low-carbon synergistic governance for high-energy-consuming industries—including coal chemical, petrochemical, steel, cement, non-ferrous metals, and chemical sectors—while simultaneously expanding into waste and hazardous waste resource utilization, integrated environmental services for industrial parks, full-process CCUS demonstration projects, and carbon asset development. The Company possesses end-to-end service capabilities spanning “technology R&D—equipment manufacturing—engineering implementation—intelligent operation & maintenance—resource utilization.” Its independently developed SPC-3D cyclonic atomization high-efficiency desulfurization and dust removal integrated technology and SPR single-tower integrated desulfurization and dust removal deep purification technology have been successfully applied to over 300 coal-fired power generating units rated at 300 MW or above nationwide; among these, the SPC-3D technology has been included in the National Development and Reform Commission’s “Green Technology Promotion Catalog (2024 Edition).” A 300,000-ton-per-year steel slag micro-powder production line has been constructed, establishing a technological core based on “physical-chemical synergy—intelligent control—resource regeneration,” and leveraging the “Qingxin Cloud” intelligent environmental protection platform, the Company has achieved an 8%–12% reduction in desulfurization system energy consumption and minute-level operational response times. The Company holds Class-A qualification for specialized design of environmental engineering (atmospheric pollution control engineering), Grade I qualification for professional contracting of environmental engineering, Special Equipment Production License (Pressure Piping GC1 and GB1 categories), and Level IV license for installation (maintenance/testing) of electric power facilities. It is certified under ISO 9001/14001/45001 management systems and was recognized by the Ministry of Industry and Information Technology in 2023 as a “Green Manufacturing System Solution Provider.” Representative projects include the ultra-low emission retrofit of four 1,000-MW units at Huaneng Yuhuan Power Plant; the EPC project for comprehensive flue gas treatment of the sintering machine at HBIS Group’s Handan New Area; the BOT project for hazardous waste disposal center at Sichuan Yibin Lithium Battery Materials Industrial Park; and the 150,000-ton-per-year CO₂ capture plus geological storage monitoring full-process CCUS demonstration project at the Ordos Coal Chemical Industrial Park in Inner Mongolia. Internationally, flue gas treatment EPC and O&M services have been implemented in Vietnam, Indonesia, and the United Arab Emirates. Overseas revenue accounted for 6.3% of total revenue in 2025. As the Chinese lead entity, the Company participated in drafting the ISO/TC 265 Draft International Standard No. 47, “Guidelines for Monitoring Technologies for Geological Storage of CO₂.” Currently, its international business primarily involves EPC general contracting and technical service exports. Publicly available information does not indicate substantive commercial implementation of its technologies in the EU’s Carbon Border Adjustment Mechanism (CBAM) or the U.S. Section 45Q program, nor does it show any overseas production bases or registered controlled subsidiaries.

China Wuhuan Engineering Co., Ltd.'s turnkey Ca Mau (Vietnam) synthetic ammonia urea fertilizer plant has been successfully completed and put into production, with an annual output of approximately 860,000 tons of synthetic ammonia and 800,000 tons of urea. It is Vietnam's largest nitrogen fertilizer production base and a landmark EPC project completed by Chinese chemical engineering enterprises in Vietnam.

China Wuhuan Engineering Co., Ltd. has undertaken an EPC project for phosphate mining and phosphate chemical plant development in Zambia, southern Africa. Utilizing the region's abundant phosphate resources to produce ammonium phosphate series fertilizers, this project represents a significant strategic move for Chinese chemical engineering enterprises to expand their fertilizer market presence in sub-Saharan Africa.

Guizhou Tianfu Chemical Co., Ltd. is a state-controlled enterprise under Guizhou Phosphate Group, primarily engaged in phosphate chemical production, with the Guizhou Provincial State-owned Assets Supervision and Administration Commission as its actual controller. The company is deeply integrated into China’s national strategic layouts concerning “efficient utilization of phosphate resources” and the “new energy materials industry chain.” Its core businesses encompass research, development, production, and sales of fundamental phosphate chemical products—including wet-process phosphoric acid, phosphate salts, sodium fluorosilicate, industrial-grade monoammonium phosphate, and feed-grade dicalcium phosphate—as well as fine phosphate chemical derivatives. Leveraging regional advantages in phosphate ore resources and technological synergy within the group, the company extends its operations into precursor materials for new-energy battery cathodes (e.g., iron phosphate) and purified phosphoric acid for supporting applications. The company possesses an annual production capacity of 300,000 tons of wet-process purified phosphoric acid and maintains a comprehensive wet-process phosphoric acid purification technology system. It participated in formulating the industry standard “HG/T 5003–2016 Purified Phosphoric Acid for Industrial Use,” holds invention patents such as “A Method for Deep Purification of Wet-Process Phosphoric Acid,” and its core technical team has long undertaken relevant projects under the Guizhou Provincial Science and Technology Support Program. In terms of qualifications, the company has obtained certifications for the three major management systems—ISO 9001, ISO 14001, and ISO 45001—and holds the “Work Safety Production License,” the “National Industrial Product Production License (Phosphate Fertilizer),” and the “Pollutant Discharge Permit.” It is also listed in the “Guizhou Province Key Energy-Consuming Units List” (2023 Edition). Representative projects include the core unit of the Fuquan High-Tech Industrial Development Zone Phosphate Chemical Circular Economy Demonstration Project and a pilot production line with an annual capacity of 100,000 tons of iron phosphate. Its products primarily serve domestic enterprises producing fertilizers, food additives, flame retardants, and lithium-ion battery materials; its business coverage spans Southwest, East, and South China. The company is open to multidimensional collaboration with upstream and downstream industry partners—including technological cooperation, customized product supply, joint R&D, and industrialization coordination.

Beijing Pisem Engineering Technology Co., Ltd. is dedicated to enhancing risk management capabilities for chemical enterprises, creating value for clients while jointly promoting the sustainable development of the chemical industry. Through its leading, integrated Process Safety Management (PSM) solutions, the company transforms safety management from passive response to proactive prevention, helping clients continuously manage risks across their business operations and co-creating outstanding operational performance.

The company possesses substantial technical expertise and capabilities. Its team has creatively integrated modules including Process Hazard Analysis (PHA), Management of Change (MOC), Mechanical Integrity (MI), Layer of Protection Analysis (LOPA), Risk Grading and Control, and Hazard Identification and Rectification, achieving significant synergies and distinct advantages, thereby delivering highly efficient, integrated solutions to clients. Additionally, the company maintains a professional R&D team that continuously develops safety production management applications and an integrated big-data platform for safety production, providing clients with digitalized, informatized, and intelligent safety production management solutions—significantly improving the efficiency and effectiveness of process safety management.

Sinopec Engineering Group undertook the EPC turnkey contract for the gas processing train cluster in Saudi Aramco's Jafurah gas field development phase I. This marks an early and significant strategic layout for Sinopec engineering enterprises in Saudi Arabia's unconventional natural gas sector, laying a solid foundation for securing the subsequent $2.2 billion contract for phase III.

An enterprise under Sinochem Group has undertaken the EPC general contracting for the expansion and reconstruction of a natural gas processing facility under ADNOC (Abu Dhabi National Oil Company), providing engineering support for the UAE to enhance the comprehensive utilization efficiency of natural gas. This serves as an important case of deepening cooperation between Chinese chemical engineering enterprises and the UAE in the oil and gas sector.

Guizhou Phosphorus & Chemical (Group) Co., Ltd. was established in June 2019 through the strategic reorganization and integration of the former Guizhou Kailin Holding (Group) Co., Ltd. and Wengfu (Group) Co., Ltd. Approved by the People’s Government of Guizhou Province, it is a large provincial state-owned backbone enterprise with registered capital of RMB 7.58 billion and its headquarters located in Guiyang City. The company is positioned as a leading national enterprise in the phosphorus chemical industry and a key platform for the efficient utilization of national phosphorus resources and green, low-carbon development. Its core businesses cover phosphate rock mining and beneficiation, wet-process phosphoric acid production, phosphorus fertilizers (including high-concentration compound phosphorus fertilizers), fine phosphorus chemicals (e.g., electronic-grade phosphoric acid, lithium iron phosphate precursors, feed-grade phosphate salts), fluorine and iodine extraction and comprehensive utilization, new building materials derived from phosphogypsum, and ecological restoration projects. It possesses full-chain vertical integration capabilities spanning “phosphate rock → phosphoric acid → phosphates → new-energy materials.” The company holds approximately 3 billion tons of phosphate rock reserves, with an annual mining and beneficiation capacity exceeding 20 million tons, phosphoric acid production capacity of about 4 million tons, phosphorus fertilizer production capacity exceeding 5 million tons, and lithium iron phosphate production capacity reaching 200,000 tons per year. It hosts a National-Certified Enterprise Technology Center, a National-Local Joint Engineering Research Center, a Postdoctoral Scientific Research Workstation, and multiple provincial key laboratories; it has obtained over 1,200 authorized patents and has led or participated in formulating more than 40 national and industrial standards. The company has achieved ISO 9001, ISO 14001, and ISO 45001 management system certifications; its major products hold fertilizer registration certificates issued by China’s Ministry of Agriculture and Rural Affairs, EU REACH registration, and IATF 16949 automotive quality management system certification; it also holds a Work Safety Production License, a Pollutant Discharge Permit, a Radiation Safety License, and multiple mineral resource exploration and mining permits. It has constructed China’s first industrial-scale battery-grade lithium iron phosphate production line with a single-line capacity of 100,000 tons per year and undertaken demonstration projects including the Fuquan City phosphogypsum new building materials base with an annual production capacity of 3 million tons. It participates in key research and development program topics under China’s 14th Five-Year Plan; its “Application Technology of Modified Phosphogypsum for Roadbed Materials” has been scaled up across multiple expressways in Guizhou Province. Its domestic market coverage extends to all 31 provinces, autonomous regions, and municipalities directly under the central government; its phosphorus fertilizers are exported to over 30 countries across Southeast Asia, South America, and Africa. Leveraging the China–ASEAN cooperation mechanism and the RCEP framework, the company is conducting preliminary exploration cooperation on phosphorus resources in Laos, Argentina, and other locations. It welcomes pragmatic alignment and in-depth collaboration in areas including joint technological R&D, industrial chain co-construction, green mine development, high-value utilization of phosphogypsum, new-energy material supply, and international resource cooperation.

Beijing Maianrui Technology Co., Ltd. was established in 2011 and is located in the Beijing High-Tech Industrial Development Zone. The company specializes in providing professional services to industries such as petroleum, natural gas, oil refining, and chemical engineering. Over the years, we have comprehensively collaborated with renowned domestic and international companies, national-level scientific research institutes, and institutions of higher learning, integrating manufacturing, engineering contracting, technology R&D, and international trade.

We possess a specialized, high-caliber team of professionals and a scientific management system. Our managerial staff is reasonably allocated to maximize individual potential; we employ modern management methodologies, advanced business philosophies, and highly efficient team collaboration approaches to deliver high-quality services to our customers. The company has obtained certification for the GB/T 19001-2016/ISO 9001:2015 Quality Management System, the GB/T 24001-2016/ISO 14001:2015 Environmental Management System, and the GB/T 45001-2020/ISO 45001:2018 Occupational Health and Safety Management System. Additionally, we have been recognized as a “Contract-Honoring and Creditworthy Enterprise” and a “Quality- and Service-Oriented Integrity Enterprise,” and have received the AAA Enterprise Credit Rating.

Adhering to our core values of “diversity, initiative, responsibility, and self-discipline,” we orient ourselves toward market demands and base our operations on technological expertise, continuously exploring and innovating. Leveraging our extensive technical expertise and practical experience in the production and application of complete equipment sets, we provide high-quality products and services to clients both domestically and internationally, making our due contribution to society’s energy-saving and emission-reduction initiatives.

Our business operations are primarily categorized into four major areas: manufacturing, technical engineering, technical services, and instrumentation & equipment. Through our professional expertise and superior service, we have earned an excellent reputation and credibility within the industry, gaining broad recognition.

Looking ahead, we will continue strengthening our internal technology R&D capabilities and talent development efforts, persistently exploring and innovating to deliver even higher-quality services and greater value to our customers.

A construction enterprise under China National Chemical Engineering Group (CNCEC) participated as a subcontractor in the expansion project of SCG Chemicals, a subsidiary of the Siam Cement Group (SCG) in Thailand. This marks a representative case of China's construction capabilities entering the construction system of top-tier chemical enterprises in Southeast Asia.

Suzhou Chemical Machinery Equipment Manufacturing Plant (Suzhou Pressure Vessel Factory) supplied key pressure vessels and heat exchanger equipment to the RAPID refining and petrochemical complex under Malaysia's PETRONAS, marking a significant case of Chinese chemical equipment entering a national-level flagship refining and petrochemical project in Malaysia.

Guizhou Lifang Microcrystalline Technology Co., Ltd. was established in December 2021, with its registered address located in Guanshanhu District, Guiyang City, Guizhou Province. It is a national high-tech enterprise (certified in 2023) specializing in the research, development, production, and application of microcrystalline glass materials. Its unified social credit code is 91520115MA7H6QYJ8F. The company’s core business focuses on formula design, melting process optimization, and industrial-scale application of specialty microcrystalline glass materials featuring low thermal expansion, high light transmittance, and corrosion resistance. Its products are widely applied in precision structural components for semiconductor equipment, substrates for high-end optical instruments, heat-resistant components for new-energy equipment, and microcrystalline glass panels for architectural energy-saving decoration. The company possesses independently developed “gradient temperature-controlled crystallization” process technology and has been granted two authorized invention patents (ZL202210893456.7 and ZL202211237891.2); additionally, several utility model patents are under substantive examination. In terms of qualifications, the company has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q4123456R1M, valid until August 2025) and has been included in Guizhou Province’s 2024 “Specialized, Refined, Distinctive, and Innovative” (SRDI) Small and Medium-sized Enterprises (SMEs) cultivation list. Representative projects include custom-developing quartz-microcrystalline composite chamber support rings for domestic semiconductor etching equipment manufacturers (delivered in 2023 and passing SGS thermal cycling tests from −60°C to 800°C), and serving as a primary drafting entity for Guizhou Province’s local standard “Technical Specification for Application of Microcrystalline Glass Cladding Panels for Building Use” (2024). The company is based in Guizhou but serves the entire nation, offering material customization, collaborative process development, and joint standard formulation to clients across industries including semiconductors, optics, new energy, and green construction.