First: identification materials. People in China only need to provide a copy of your ID card. If it is a soldier, you can also provide a copy of the military officer's card. If you are a foreigner, you need to provide a passport and residence permit, and Hong Kong, Macao and Taiwan compatriots need to submit a mainland pass.
Second: Work certification materials. If you have a formal job, you need to submit a copy of your work permit and proof of income to the bank. You just need to download the form online and fill it out to get the company seal.
Third: Other financial certification materials. If you don't have a formal job, then this information becomes particularly important. You can submit your real estate, automobile production, bank deposits, funds, insurance and other proof materials to the bank, and show your economic strength through these materials, so that it is easier for the bank to recognize you and moderately increase your credit limit.