Group 1 - China National Petroleum Corporation (CNPC) Capital announced an investment of 655 million yuan in Kunlun Capital for a total capital increase of 3.275 billion yuan, aimed at investing in controllable nuclear fusion projects [1] - This is not CNPC's first venture into nuclear fusion; last year, Kunlun Capital and Hefei Science Island Holdings became shareholders in a fusion energy company, each investing 2.9 billion yuan for a 20% stake [1] - Controllable nuclear fusion is referred to as the "ultimate energy" source, with the potential to provide limitless energy without high-level radioactive waste [3][4] Group 2 - The principle of nuclear fusion mimics the sun's energy production, utilizing isotopes of hydrogen (deuterium and tritium) to release significant energy [4] - The key technologies for achieving controllable nuclear fusion are magnetic confinement fusion and inertial confinement fusion, with the tokamak device being the most mainstream approach [4] - China has made significant advancements in nuclear fusion research, transitioning from a follower to a core player in the field, with projects like the EAST tokamak and participation in the ITER project [3][8] Group 3 - The ITER project, initiated in 1985, aims to create a large-scale fusion reactor through international collaboration, with China joining in 2006 and taking on a significant portion of the research tasks [9][10] - The CFEDR (China Fusion Engineering Demonstration Reactor) project is a strategic initiative to develop a demonstration reactor, with plans to achieve commercial fusion energy by 2050 [11][12] - The CRAFT (Comprehensive Research Facility for Fusion Technology) project is set to be completed by 2025, providing a platform for high-parameter testing and supporting the CFEDR project [12]