It doesn't matter. After the establishment of the debt contract, if the creditor requires the debtor to provide a guarantee, the debtor may mortgage and sign a mortgage contract.

The mortgage contract shall include the following contents:

(1) The type and amount of the secured principal creditor's rights;

(2) The time limit for the debtor to perform the debt;

(3) Name, quantity, quality, condition, location, ownership or right to use the mortgaged property;

(4) The scope of mortgage guarantee;

(five) other matters that the parties think need to be agreed.

If the mortgage contract does not fully comply with the provisions of the preceding paragraph, it may be supplemented.