China Merchants Bank indicates the undertaking beyond the silver period, because it can only undertake the funds in the bank account of the futures company, and the funds such as the reserve fund and deposit of the futures company need to be borne by the futures clearing company.

In the futures market, there are two common trading methods, namely, silver transfer and direct acceptance. Among them, bank transfer refers to the exchange of trading funds between futures exchanges and banks, while direct acceptance refers to the direct acceptance of customers' funds by futures companies. Commitments other than the silver period refer to the funds that need to be borne by other institutions, such as the reserves, deposits and handling fees of customers of futures companies. In this case, China Merchants Bank needs to indicate the letter of commitment beyond the silver period to avoid misunderstanding or unnecessary disputes.

When accepting funds from customers of futures companies, banks also need to consider the risks and operability of transactions, and also carefully consider and evaluate high-risk operation methods such as direct acceptance.