Group 1 - Zhejiang Fu Holdings experienced a significant stock surge, hitting the daily limit up on January 22 [1] - The company's core subsidiary, Hangzhou Zhejiang Fu Nuclear Power Equipment Co., signed a cooperation agreement with the Hefei Comprehensive National Science Center Energy Research Institute for the joint development of ultra-high heat load components for the China Fusion Engineering Test Reactor (CFEDR) [1] - The agreement indicates that Zhejiang Fu Nuclear Power will play a crucial role in the development of core components for the CFEDR, focusing on challenges related to plasma [1]