证券时报·2025-12-09 00:11Group 1 - The article discusses the potential change of control in several A-share companies, including PIANO, TaiLong Pharmaceutical, and ST Yishite [3][4][10]. - PIANO's controlling shareholder, Ma Libin, is planning to change the company's control, leading to a stock suspension starting December 9, with a market capitalization of approximately 3 billion yuan [4][5]. - TaiLong Pharmaceutical has reached an agreement for a share transfer that will change its controlling shareholder to Jiang Pharmaceutical Holdings, with a total transaction value of 553 million yuan for 8.73% of shares [7][8]. Group 2 - ST Yishite's control change has faced complications, with a previous agreement to transfer shares to Guangwu Group being terminated due to disagreements among parties [10]. - A new agreement has been signed for Hubei Jingjiang Investment Group to acquire 4.34 billion shares for 2.437 billion yuan, making it the new controlling shareholder [11].