According to Article 11 of the Regulations on the Administration of Futures Trading, futures exchanges shall establish and improve the following risk management systems in accordance with relevant state regulations: ① margin system; ② Debt-free settlement system of the day; (3) price limit system; (4) position limit and large position reporting system; ⑤ Risk reserve system; ⑥ Other risk management systems stipulated by the State Council Futures Regulatory Authority. The futures exchange that implements the member grading settlement system shall also add margin in time or close its position on its own. If a member fails to add margin or close the position by himself within the time specified by the futures exchange, the futures exchange shall forcibly close the position of the member's contract.