Among them, the interest rate is paid by the bank for free or by the government or corresponding institutions under agreed conditions.
Generally, international private commercial banks will charge a commission of about 1% for interest-free loans, including consumer bank loans for shopping or further study, which is a bank's income.
At least offset the administrative expenses, and then the bank will cooperate with the request to join credit cards or various members or open a trading account when the loan is interest-free. This is a wonderful way to expand customers.