*ST四环：碧水农业投资完成27.78%股份过户

Group 1 - The core point of the article is that *ST SiHuan has undergone a significant change in its ownership structure, with Bihui Agricultural Investment acquiring a controlling stake in the company through a judicial auction [1] - Bihui Agricultural Investment has acquired 28,599 million shares, which represents 27.78% of the total share capital of *ST SiHuan [1] - The transaction was completed at a price of 388 million yuan, and the transfer of shares was finalized in January 2025 [1] Group 2 - Following the acquisition, Bihui Agricultural Investment has become the controlling shareholder of *ST SiHuan [1] - Qiu Wei Bi has been identified as the actual controller of the company after the acquisition [1]