两股宣布并购重整，双双提前涨停

Group 1: Mergers and Acquisitions Activity - The A-share lithium battery sector is experiencing significant capital operations, with Yongtai Technology planning to acquire a 25% stake in Yongtai High-tech from CATL through a share issuance, leading to a stock suspension starting February 9 [2] - The stock of Yongtai Technology reached a market cap of 26.6 billion yuan after hitting the daily limit up on February 6, marking its first limit up since 2026 [2][6] - Another company, Ruili Kemi, announced plans to acquire the remaining 16% stake in its subsidiary, Wuhan Kedes, which will make it a wholly-owned subsidiary, also resulting in a stock suspension from February 9 [2] Group 2: Ongoing Mergers and Acquisitions Announcements - At least 18 companies in the A-share market disclosed merger and acquisition progress this week, indicating a robust trend in corporate restructuring [3] - Specific companies involved include Longyun Co., which plans to acquire 58% of Xuanheng Film Industry, and Yiwang Yichuang, which intends to purchase 100% of Lianshi Legend for cash and shares [4] Group 3: Changes in Company Control - Shanshan Co. announced a potential change in control, with its major shareholder set to change to Anhui Weiqi Group, and the actual controller to the Anhui State-owned Assets Supervision and Administration Commission, following a restructuring process [5] - The company is currently in a state of no effective control after the death of its founder, leading to a significant power struggle within the family [5]