The purchase contract is not a loan contract. The purchase contract is an agreement reached between the buyer and the real estate development enterprise on the basis of equality, voluntariness and consensus, and the loan contract is an agreement reached between the debtor and the creditor not to transfer the possession of real estate as the guarantee of creditor's rights.

legal ground

Article 400 of the Civil Code

To establish a mortgage, the parties shall conclude a mortgage contract in writing. A mortgage contract generally includes the following clauses:

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

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

(3) The name and quantity of the mortgaged property;

(4) the scope of the guarantee.

Article 595

A sales contract is a contract in which the seller transfers the ownership of the subject matter to the buyer and the buyer pays the price.