The reason is to control risks and prevent illegal capital flows. The reason why the withdrawal of futures requires the approval of the company is to control risks and prevent the illegal flow of funds. Specifically, the futures market is a high-risk financial market, and the market fluctuates greatly, so investors have higher requirements for risk tolerance. If investors make large cash withdrawals or capital flows at will, it may cause huge losses to investors themselves and other market participants. In addition, some illegal funds may be used for money laundering or other illegal activities through the futures market, which will bring adverse effects to society.