可控核聚变概念股普跌，哈焊华通跌超8%

Group 1 - The core viewpoint of the news is that the controlled nuclear fusion concept stocks in the A-share market experienced a significant decline, influenced by Elon Musk's negative comments on nuclear fusion power generation [1] - Specific stocks that fell include: - Ha Huan Huatong down 8.72% with a market cap of 8.962 billion - Yongding Co. down 8.04% with a market cap of 29.4 billion - Ice Wheel Environment down 6.98% with a market cap of 16.8 billion - Changfu Co. down 6.46% with a market cap of 2.512 billion - Juguang Technology down 5.45% with a market cap of 14 billion [2] Group 2 - Elon Musk publicly criticized the idea of building small nuclear fusion reactors on Earth, calling it economically wasteful and stating that the Sun itself is a massive, free nuclear fusion reactor [1] - Musk emphasized that the energy produced by the Sun could meet all energy demands in the solar system, further questioning the feasibility of small-scale nuclear fusion projects [1]