legal ground
Article 29 of the general principles of loans
All loans shall be signed by the lender and the borrower. The loan contract shall stipulate the loan type, loan purpose, amount, interest rate, loan term, repayment method, rights and obligations of both borrowers and borrowers, liabilities for breach of contract and other matters that both parties think need to be agreed. The guaranteed loan shall be signed by the guarantor and the lender, or the guarantor shall specify the guarantee terms agreed with the lender in the loan contract, affix the official seal of the guarantor as a legal person, and be signed by the legal representative of the guarantor or his authorized agent. Mortgages and pledged loans shall be signed by the mortgagor, the pledger and the lender. Where registration is required, it shall be registered according to law.