Group 1 - The central bank of China conducted a reverse repurchase operation of 405.8 billion yuan for a 7-day term, resulting in a net withdrawal of 174.5 billion yuan due to the maturity of 580.3 billion yuan in reverse repos on the same day [1] - Additionally, there was a maturity of 300 billion yuan in one-year medium-term lending facilities, leading to a total net withdrawal of 474.5 billion yuan for the day [1] - For further details on the flow of funds in the open market, the central bank's database can be consulted [1]