The global energy transition, coupled with the imperative for reliable power supply, is driving significant growth in the nuclear power industry. This sector is demonstrating strong momentum with leading global performance across multiple data points, indicating a clear and sustained period of prosperity and accelerated industrial development.

1. China Yangtze Power Co., Ltd. (SSE: 600900) is a major operator of clean energy in China. Its core business focuses on electricity production and supply, primarily centered on the operation of large-scale hydropower assets. Leveraging a cascade of power stations along the river basin, the company has established a stable power supply capability. As a benchmark enterprise in China's hydropower sector, it has accumulated extensive experience in basin-wide cascade dispatching and power plant operation and maintenance. Relying on the hydropower resources of the Yangtze River mainstream, it has built a leading-scale hydropower operation system. The company concentrates on its clean energy main business, continuously optimizing its power production structure, strengthening integrated cascade dispatching, and enhancing unit operational efficiency and power supply stability. Against the backdrop of the energy transition, the company utilizes the zero-carbon and stable characteristics of hydropower to provide the grid with reliable baseload power support. It is also actively exploring pathways for the synergistic development of hydropower and new energy sources, contributing to the construction of a new power system and playing a vital supporting role in the clean energy sector.

2. Huadian New Energy Co., Ltd. (SSE: 600930) focuses on the clean energy power generation sector. Its main business encompasses the development, construction, and operational management of new energy projects such as wind and solar power, making it a significant enterprise in China's new energy generation field. Utilizing a mature project development and operation system, the company continuously promotes the large-scale deployment of wind and solar resources, building a cluster of new energy generation assets covering multiple regions. At the operational level, it enhances the refined maintenance and management of wind farms and photovoltaic power stations, optimizes power generation dispatch strategies, improves unit utilization efficiency, and ensures the stability of power supply. The company actively responds to the energy transition strategy, consistently expanding its new energy installed capacity, promoting the efficient development and utilization of wind and solar resources, aiding the advancement of dual-carbon goals, and playing a positive role in the clean energy substitution process.

3. China General Nuclear Power Corporation (SZSE: 003816) is a core enterprise in China's nuclear power operation sector. Its primary business involves the operation, construction, and management of nuclear power projects. The company manages multiple operational nuclear power units and possesses a rich portfolio of projects under construction and in reserve, forming an operational system that covers the entire nuclear power industry chain. In terms of unit operation and maintenance, it has established a stringent safety management system and standardized maintenance procedures to ensure the safe and stable operation of nuclear power units, with related operational metrics maintaining advanced industry standards. The company continuously promotes the independent application and optimization of nuclear power technology. Relying on mature operational experience, it is steadily advancing the batch construction of nuclear power projects, providing the power system with stable, zero-carbon baseload power support and facilitating the optimization and upgrade of the energy structure.

4. NARI Technology Co., Ltd. (SSE: 600406) specializes in power automation, informatization, and new energy equipment. Its main business includes the R&D, production, and sales of power system solutions such as grid dispatch automation, relay protection, smart substations, and new energy grid integration control. The company possesses deep technical expertise in power system automation, with its products widely used in various segments including grid dispatch, transmission, transformation, and distribution, making it a core supplier of power system automation equipment in China. It continuously drives technological innovation, developing products and solutions tailored to the needs of building a new power system, such as new energy grid integration and grid intelligence upgrades, thereby supporting the safe and stable operation of the power grid and the development of the energy transition.

5. China State Construction Engineering Corp., Ltd. (SSE: 601668) is a leading enterprise in China's construction industry. Its main businesses include building construction engineering, infrastructure construction and investment, and real estate development and operation. In the field of infrastructure construction, the company participates in numerous national-level major projects covering transportation, energy, municipal works, and other areas, possessing full-industry-chain engineering construction capabilities. Regarding energy infrastructure, it participates in the engineering construction of energy projects such as nuclear power, hydropower, and wind power, providing engineering technical support for the implementation of energy infrastructure. Leveraging mature project management and construction techniques, the company continuously advances major project construction, contributing to the improvement and upgrading of the national energy infrastructure system.

6. China National Nuclear Power Co., Ltd. (SSE: 601985) is a key enterprise in China's nuclear power industry. Its primary business involves the development, construction, operation, and management of nuclear power projects, along with involvement in nuclear technology R&D and nuclear power engineering construction services. The company manages multiple operational nuclear power units and has a well-structured portfolio of projects under construction and in reserve, forming a capability for full lifecycle management of nuclear power projects. Technologically, it actively promotes the application and optimization of third-generation nuclear power technology and participates in the R&D of advanced nuclear power technologies to ensure the safe and efficient operation of nuclear power units. Utilizing the zero-carbon and stable attributes of nuclear power, the company consistently provides the grid with reliable baseload power while steadily advancing the batch construction of nuclear power projects, aiding the low-carbon transition of the energy structure.

7. China National Uranium Corporation Ltd. (SZSE: 001280) focuses on the production, processing, and sales of natural uranium and related products. Its main business covers natural uranium mining and milling, nuclear fuel assembly manufacturing, and uranium resource exploration, making it a core enterprise in China's nuclear fuel supply system. The company has a comprehensive system for uranium resource development and processing. Its products are widely used in nuclear power, scientific research, and other fields, providing fundamental resource support for the stable development of the domestic nuclear power industry. It continuously promotes the optimization of uranium resource exploration and development technologies, improves resource utilization efficiency and production safety, ensures the stability and reliability of the nuclear fuel supply chain, and supports the healthy and sustainable development of the nuclear power industry.

8. Dongfang Electric Corporation (SSE: 600875) is a backbone enterprise in China's energy equipment manufacturing industry. Its main business involves the R&D, manufacturing, and sales of energy equipment, with products covering power generation equipment and related components for thermal power, hydropower, nuclear power, wind power, and other sectors. In the field of nuclear power equipment, the company possesses manufacturing capabilities for nuclear island and conventional island main equipment. Its products are applied in multiple domestic nuclear power projects, providing equipment support for nuclear power engineering construction. The company continuously promotes independent innovation in energy equipment technology, developing suitable products for clean energy sectors like nuclear and wind power, thereby supporting the localization process of energy equipment and the energy transition.

9. TBEA Co., Ltd. (SSE: 600089) is primarily engaged in the manufacturing of power transmission and transformation equipment, production of new energy materials, and energy engineering construction. It possesses full-series product R&D and manufacturing capabilities in the power transmission and transformation equipment sector, with products widely used in grid construction and energy engineering scenarios. In the nuclear power-related field, the company provides supporting transmission and transformation equipment for nuclear power projects, aiding in the construction of their power transmission systems. Relying on mature technology R&D and manufacturing systems, it continuously advances the technological upgrading of transmission and transformation equipment, ensuring the stability of power transmission for grids and energy projects, and providing support for energy infrastructure construction.

10. Baoshan Iron & Steel Co., Ltd. (SSE: 600019) is primarily engaged in the production and sales of steel products, covering categories such as plates, pipes, and wire rods, which are widely used in construction, machinery, energy, transportation, and other industries. In the nuclear power sector, the company can supply special steel products required for nuclear power projects, including nuclear-grade pressure vessel steel and nuclear power pipeline steel, providing material support for nuclear power engineering construction. It continuously promotes the R&D and production of high-end steel products, optimizing product performance and quality to meet the specific requirements of high-end sectors like nuclear power, thereby supporting the safe construction and operation of nuclear power projects.

11. China Energy Engineering Corporation Limited (SSE: 601868) is a large comprehensive energy infrastructure enterprise in China. Its main businesses cover engineering survey, design, construction, EPC, and investment operation in sectors such as energy and power, water resources and water utilities, transportation and municipal works, and ecological environmental protection. In the energy sector, the company is deeply involved in the engineering construction of various clean energy projects including nuclear power, hydropower, wind power, and solar power, possessing full-chain service capabilities from preliminary planning and survey design to on-site construction, commissioning, and operation maintenance. Relying on a sound engineering management system and technical reserves, it serves national energy infrastructure construction, aiding energy structure optimization and the building of a new power system. In the field of nuclear power engineering, it participates in various supporting projects and infrastructure construction for nuclear power projects, using its professional engineering capabilities to support the safe and orderly progress of nuclear power projects. It also actively deploys businesses in new energy and comprehensive energy services, adapting to the energy transition trend and continuously expanding its clean energy engineering service footprint.

12. Shanghai Electric Group Company Limited (SSE: 601727) focuses on core areas such as energy equipment, industrial equipment, and integrated services. Its main businesses include the R&D, manufacturing, and sales of power generation equipment, power transmission and distribution equipment, heavy machinery, and environmental protection equipment, making it an important comprehensive equipment manufacturing group in China. In the nuclear power field, the company possesses design and manufacturing capabilities for key equipment in the nuclear island and conventional island, providing core equipment and components for multiple domestic nuclear power projects and promoting the localization and independence of nuclear power equipment. It continuously invests in R&D for clean energy equipment technology, covering areas like third-generation nuclear power and new energy power generation, constantly improving product reliability and technical level. Simultaneously, the company develops businesses around overall energy system solutions, promoting the synergistic development of equipment manufacturing and engineering services, and playing a significant role in ensuring the security of the energy equipment supply chain and supporting national energy infrastructure construction.

13. Jereh Group (SZSE: 002353) is primarily engaged in oil and gas equipment, environmental protection equipment, and energy engineering technical services. Its products include fracturing equipment, cementing equipment, special oilfield equipment, and environmental treatment equipment, widely used in oil and gas development and energy environmental protection. Leveraging its independent R&D capabilities, the company continuously promotes the localization of high-end equipment, forming strong technological and market competitiveness in the oil and gas engineering equipment sector. Concurrently, it actively deploys businesses in new energy and environmental protection, expanding into related fields such as solid waste treatment, soil remediation, and industrial energy efficiency, serving the green and low-carbon transformation of the energy industry. The company adheres to technological innovation and product upgrading, focusing on high-end equipment manufacturing and professional technical services to provide reliable equipment and integrated solutions for the energy industry, maintaining stable development in niche segments of energy equipment.

14. Zhongtian Technology Group Co., Ltd. (SSE: 600522) has businesses covering optical fiber communication, power transmission, marine equipment, and new energy materials. Its products include optical cables, special conductors, submarine cables, and photovoltaic modules, making it an important enterprise in China's optical communication and power transmission fields. In the power sector, it specializes in the R&D and manufacturing of high-voltage, ultra-high-voltage power transmission and transformation cables and submarine power cables, with products applied in grid construction, cross-regional power transmission, and offshore wind power scenarios. In the nuclear power supporting field, the company provides power transmission and communication cable products for nuclear power projects, ensuring stable power transmission and information transfer. It continuously promotes innovation in high-end cable materials and special cable technology, enhancing product stability and safety in harsh environments, thereby supporting grid upgrades and clean energy project construction.

15. China Communications Construction Company Limited (SSE: 601800) is a large central state-owned enterprise in infrastructure construction. Its main businesses include transportation infrastructure construction, port and waterway engineering, municipal engineering, overseas engineering EPC, and investment operations, covering highways, bridges, ports, railways, and urban rail transit. Regarding supporting energy infrastructure, the company participates in the construction of docks, cofferdams, revetments, roads, and plant area infrastructure related to energy projects such as nuclear power, LNG terminals, and offshore wind power, providing engineering assurance for the implementation of major energy projects. Utilizing its core technical advantages in large-scale engineering construction, marine engineering, and ground treatment, it undertakes various complex infrastructure projects, possessing outstanding capabilities in ensuring project quality and construction progress. The company actively participates in domestic and international supporting infrastructure construction for energy, facilitating the smooth implementation of energy projects and serving national energy security and infrastructure modernization.

16. Huaneng Power International, Inc. (SSE: 600011) is a large comprehensive power generation enterprise in China. Its main business is electricity production and sales, with a generation portfolio covering thermal power, hydropower, wind power, solar power, and equity investment in nuclear power. The company adheres to a diversified power source structure layout, continuously increasing investment in clean energy while stabilizing traditional power sources, and promoting the development and operation of wind and solar new energy projects. It actively participates in nuclear power project investment and cooperation, leveraging mature power operation experience to support the development of clean, low-carbon power sources. In terms of power supply guarantee, the company ensures continuous and stable power output through optimized unit dispatch and improved operation and maintenance levels, supporting the secure operation of regional power grids. Adapting to the direction of the energy transition, it continuously increases the proportion of clean energy installed capacity, promotes the low-carbon transformation of the power structure, and provides reliable power supply for society.

17. SDIC Power Holdings Co., Ltd. (SZSE: 000958) is primarily engaged in power production, heat supply, energy finance, and industrial investment, conducting comprehensive energy services and capital operations based on its power industry foundation. The company operates coal-fired power generation and cogeneration projects, while also deploying new energy businesses like wind and solar power, promoting the cleaning adjustment of its power source structure. In the energy finance sector, it provides related financial services around the power industry chain, assisting energy enterprises with financing and industrial synergistic development. Adhering to a development model that combines industry and finance, the company optimizes its asset structure and enhances its comprehensive service capabilities. While ensuring stable regional power and heat supply, it actively participates in clean energy projects, promoting the green and low-carbon transition.

18. Power Construction Corporation of China (SSE: 601669) is a globally leading engineering service provider for hydropower and new energy. Its main businesses include engineering survey and design, power engineering, water conservancy engineering, infrastructure construction, and investment operation, covering the survey, design, construction, and EPC of various energy projects such as hydropower, nuclear power, wind power, and solar power. In the nuclear power field, the company participates in related construction aspects such as preliminary planning, site investigation, and supporting hydraulic and civil engineering for nuclear power projects. It has accumulated rich experience and technical advantages in hydropower, pumped storage, and new energy power plant construction, continuously serving national energy infrastructure construction. The company actively expands into overseas energy engineering markets, promotes the export of clean energy technology, and contributes to global energy transition and sustainable development.

19. China XD Electric Co., Ltd. (SSE: 601179) specializes in the R&D, manufacturing, and sales of power transmission and distribution and control equipment. Its main products include transformers, reactors, switchgear, bushings, and instrument transformers for high-voltage, ultra-high-voltage, and UHV power transmission and transformation, making it a core enterprise in China's power transmission and distribution sector. Its products are widely used in the State Grid, cross-regional power transmission projects, new energy power plant grid integration, and nuclear power supporting transmission and transformation systems, providing key equipment support for nuclear power output and grid stability. The company insists on independent innovation, promotes the localization of high-end transmission and transformation equipment, and enhances equipment reliability under extreme conditions. In the context of building a new power system, it continuously optimizes its product structure to serve the large-scale grid integration of clean energy and grid intelligence upgrades.

20. China Dynamics Co., Ltd. (SSE: 600482) is primarily engaged in marine power, electric drive, energy storage systems, and nuclear chemical equipment. Its products include diesel engines, gas turbines, batteries, special motors, and related supporting equipment. In the energy and nuclear power supporting fields, the company provides related power equipment, emergency power systems, and special equipment to serve the needs of energy projects and nuclear power engineering. Leveraging its military technology heritage and high-end manufacturing capabilities, it continuously advances the technological upgrade of power equipment, improving product safety, reliability, and energy efficiency. The company actively deploys businesses in new energy power and energy storage, expanding application scenarios for green power systems, maintaining technological advantages in the high-end equipment manufacturing field, and serving the modernization of energy equipment and industrial equipment.

21. CITIC Special Steel Group Co., Ltd. (SZSE: 000708) is primarily engaged in the R&D, production, and sales of special steel materials. Its product range covers high-end special steel categories such as alloy structural steel, bearing steel, gear steel, spring steel, and tool and die steel, widely used in important fields like automobiles, machinery, energy equipment, and rail transportation. In energy industry applications, its special steel products can be used for manufacturing key components of equipment in nuclear power, thermal power, and wind power, meeting stringent requirements for high temperature, high pressure, and high fatigue strength. Relying on a complete special steel production system and continuous R&D investment, it constantly improves product purity, strength, and stability, promoting the domestic substitution of high-end special steels. The company insists on driving product upgrades through technological innovation, focusing on the steel needs of high-end equipment manufacturing, optimizing its product structure, and forming strong technical barriers and market competitiveness in the special steel segment, providing key material support for major domestic equipment and energy infrastructure construction.

22. Zhejiang Zheneng Electric Power Co., Ltd. (SSE: 600023) is primarily engaged in power production, sales, and comprehensive energy services. Its power generation is predominantly thermal-based, but it also actively deploys clean energy projects such as wind power, solar power, and distributed energy, promoting the low-carbon transformation of its power source structure. Based on regional power supply assurance and leveraging mature power generation operation systems and refined management experience, the company continuously optimizes unit operation modes, improves energy utilization efficiency, and ensures stable power supply for regional grids. Under the energy transition trend, it continuously increases efforts in new energy project development, expands comprehensive energy businesses like cogeneration and centralized heating, and promotes the synergistic development of traditional and clean energy. The company adheres to the baseline of safe and stable operation, actively responds to low-carbon development requirements, and enhances clean and efficient power generation levels through technological transformation and structural optimization, playing an important role in regional energy supply assurance and green development.

23. AVIC Optoelectronics Co., Ltd. (SZSE: 002179) is primarily engaged in the R&D, production, and sales of high-end optical, electrical, and fluid connectors and related components. Its products are widely used in aerospace, defense equipment, new energy, communications, rail transportation, and energy power. In the energy and nuclear power related fields, its connector products can be used in nuclear power control systems, monitoring systems, and power transmission equipment, meeting special requirements for high reliability, high safety, and anti-interference. Relying on profound technical accumulation and a strict quality control system, the company continuously promotes innovation and upgrading of high-end interconnection products, improving their stability and durability in complex environments. Focusing on the high-end manufacturing sector and adhering to independent R&D and domestic substitution, it provides reliable interconnection solutions for high-end equipment and energy infrastructure, maintaining a leading technological position in the domestic connector industry.

24. Datang International Power Generation Co., Ltd. (SSE: 601991) is a large comprehensive energy generation enterprise in China. Its main business is power production and sales, with a power source structure covering thermal power, hydropower, wind power, solar power, and nuclear power. The company adheres to a diversified power source layout strategy, continuously increasing the development of clean energy while ensuring stable power supply from traditional thermal power, and promoting the construction and operation of wind and solar new energy projects. It actively participates in investment and cooperation in nuclear power related projects, providing stable and reliable power support to the grid through its nationwide power source layout and professional operation management capabilities. Against the backdrop of the energy transition, the company continuously optimizes its power source structure, increases the proportion of clean energy installed capacity, promotes the application of energy-saving, carbon-reduction, and high-efficiency power generation technologies, and contributes to the achievement of dual-carbon goals and the construction of a new power system.

25. Yongding Co., Ltd. (SSE: 600105) has businesses covering optical communication, power cables, automotive wiring harnesses, and overseas engineering. Its products include communication optical cables, power cables, and special cables, widely used in communication transmission, grid construction, and new energy supporting scenarios. In the power energy sector, the high-voltage power cables and special cables produced by the company can serve the power transmission and system support of clean energy projects such as nuclear power, wind power, and solar power, ensuring stable and reliable power transmission for energy projects. The company continuously promotes the upgrading of cable materials and manufacturing processes, improving product performance indicators such as high-temperature resistance, anti-aging, and high insulation to adapt to complex engineering environment requirements. Leveraging its diversified business layout and technological innovation capabilities, it develops steadily in the communication and power transmission fields, providing supporting services for energy infrastructure and information network construction.

26. China International Marine Containers (Group) Ltd. (SZSE: 000039) is a globally leading manufacturer of logistics equipment and energy equipment. Its main businesses cover containers, road transport vehicles, energy and chemical equipment, offshore engineering, and airport equipment. In the energy equipment field, the company produces various energy storage equipment, LNG equipment, pressure vessels, and other products applicable to energy storage and transportation and comprehensive energy services. Leveraging its global manufacturing network and modular engineering technology, it continuously expands its clean energy equipment business, promoting product upgrades towards high efficiency, low carbon, and intelligence. Adhering to a development path that emphasizes both diversification and specialization, the company has formed a comprehensive competitive advantage in the logistics equipment and energy equipment fields, providing equipment support for the global supply chain and energy infrastructure construction.

27. Wolong Electric Drive Co., Ltd. (SSE: 600580) is primarily engaged in the R&D, production, and sales of motors and drive control systems. Its products cover industrial motors, high-voltage motors, new energy vehicle motors, and high-efficiency energy-saving motors, widely used in industrial manufacturing, energy power, rail transportation, and home appliances. In energy-related fields, its motor products can be used in auxiliary systems of power stations such as nuclear, thermal, and wind power, as well as grid supporting drive equipment, featuring high efficiency, energy saving, and high reliability. The company continuously promotes motor energy efficiency upgrades and R&D in intelligent control technology, adapting to the trend of industrial energy conservation and green development, and enhancing the product's adaptability in high-end equipment fields. It possesses strong competitiveness in the global motor industry, driving product iteration through technological innovation and providing efficient power solutions for energy systems and industrial sectors.

28. Leo Group Co., Ltd. (SZSE: 002131) is primarily engaged in pumps and pump systems, industrial manufacturing, and digital marketing. Its core products include civil pumps, industrial pumps, and water treatment complete sets of equipment, widely used in water treatment, farmland water conservancy, industrial circulation, and energy engineering support scenarios. In energy engineering support, its industrial pump products can participate in supporting links such as circulating water systems and cooling systems for projects like nuclear power and thermal power, meeting fluid transportation and system stability requirements. The company continuously promotes the technological upgrading of pump products, improving product efficiency, durability, and automation levels, and expanding application scenarios in industry and energy fields. Relying on its diversified business layout, it maintains stable development in the pump manufacturing sector, providing reliable equipment support for water systems and energy engineering.

29. Yingliu Co., Ltd. (SSE: 603308) is primarily engaged in the R&D, production, and sales of high-end equipment components and pump valve products. Its products focus on aerospace, energy equipment, engineering machinery, and other fields, including nuclear power key components, pump valve assemblies, and precision castings. In the nuclear power field, the company specializes in the manufacturing of nuclear-grade components, providing precision parts with high temperature resistance, high pressure resistance, and high reliability for nuclear power equipment, meeting nuclear power safety operation standards. Leveraging its advantages in precision casting, mechanical processing, and material technology, it continuously promotes the localization of high-end components, breaking foreign dependence on key parts. The company insists on deepening its presence in the high-end manufacturing field, ensuring product safety and stability through a strict quality system, and providing core component support for energy equipment and major industrial equipment.

30. Shanghai Electric Power Company Limited (SSE: 600021) is primarily engaged in the production and supply of electricity and heat. Its power source structure covers thermal power, wind power, solar power, and comprehensive energy, while it actively deploys new energy and clean, efficient power generation projects. Based on regional energy assurance, it optimizes power generation operation management, improves comprehensive energy utilization efficiency, and promotes the development of cogeneration and distributed energy. In the energy transition process, the company continuously expands the installed capacity of clean energy such as wind and solar, explores multi-energy complementary models, and promotes the low-carbon transformation of traditional energy. With safe and stable power supply as its core goal, it continuously increases the proportion of clean power, contributing to the optimization of the regional energy structure and ecological environment protection, and undertaking important functions in urban energy supply assurance and green transformation.