Brokerage service agencies are all members of the Exchange. Service agencies can find intermediaries, that is, secondary agents. The commission of the service agency mainly comes from the transaction fee multiplied by a handling fee after the customer transaction developed under the company name. For example, the transaction volume of 1 10,000 is multiplied by the handling fee of 1 = 100, and the intermediary commission is extracted by reaching an agreement with the service organization in advance. For example, 20% is 100 times 20%=20 20 is the intermediary commission.