Yes, it was useless when I applied. I don't know if you have housing provident fund, if you have, you can provide it. Other materials, driving license, deposit certificate, payroll, tax bill, and credit card bills of other banks are all acceptable. If you are a private owner, I suggest you provide a copy of your business license. Personally, I think the best financial proof is the personal tax payment certificate, which is more convincing. The approval center is the most recognized. If you are a paycheck payer, you should provide it.