Article 31 of the Measures for the Administration of Futures Exchanges stipulates that the board meeting shall be attended by the directors themselves. If the director is unable to attend for some reason, he shall entrust other directors to attend in writing; The power of attorney shall specify the scope of authorization. Each director can only accept the entrustment of one director. The board of directors shall make minutes of the voting matters at the meeting, and the directors and recorders present at the meeting shall sign the minutes.