After the loan is approved, a loan contract must be signed. If there is a mortgage, there must be a mortgage contract. If there is a guarantee, there must be a guarantee contract.

Legal basis:

People's Republic of China (PRC) Civil Code

Article 667 A loan contract is a contract in which the borrower borrows money from the lender, repays the loan at maturity and pays interest.

Article 668 A loan contract shall be in written form, unless otherwise agreed between natural persons. The contents of a loan contract generally include terms such as loan type, currency, purpose, amount, interest rate, term and repayment method.