According to Article 23 of the Guidelines for the Implementation of Appropriate Management of Investors in Futures Operating Institutions, when selling products or providing services according to the principle of "selling appropriate products to appropriate investors", operating institutions shall meet the following matching requirements: ① investment period, investment varieties, expected returns, etc. In line with investors' investment objectives; ② The risk level of the product or service conforms to the risk tolerance level of investors; ③ Other matching requirements stipulated by China Securities Regulatory Commission, associations and operating institutions.