Legal analysis: Whether it is legal for a loan intermediary to charge an intermediary fee of 15% of the loan amount is not illegal because there is no specific limit in the law, but whether it is appropriate or not can be determined by the parties and the intermediary through consultation.

Legal basis: Article 963 of the Civil Code of People's Republic of China (PRC). If the broker facilitates the establishment of the contract, the principal shall pay the remuneration as agreed. If the remuneration of the broker is not agreed or clearly agreed, and cannot be determined according to the provisions of Article 510 of this Law, it shall be reasonably determined according to the services of the broker. Where an intermediary provides media services for concluding a contract, the remuneration of the intermediary shall be borne equally by both parties to the contract. If the intermediary facilitates the establishment of the contract, the expenses of the intermediary activities shall be borne by the intermediary.