Legal basis: Civil Code of People's Republic of China (PRC).
Article 399
The following properties shall not be mortgaged:
(1) Land ownership;
(two) the right to use collectively owned land such as homestead, private plots and private hills, except those that can be mortgaged according to law;
(3) Educational facilities, medical and health facilities and other public welfare facilities of non-profit legal persons established for the purpose of public welfare, such as schools, kindergartens and medical institutions;
(4) Property whose ownership and use right are unknown or controversial;
(5) Property that has been sealed up, detained or supervised according to law;
(6) Other properties that may not be mortgaged according to laws and administrative regulations.
Article 400
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.