legal ground
Article 395 of the Civil Code of People's Republic of China (PRC)
The following properties that the debtor or a third party has the right to dispose of may be mortgaged:
(a) buildings and other land attachments;
(2) The right to use construction land;
(3) the right to use the sea area;
(4) Production equipment, raw materials, semi-finished products and products;
(5) Buildings, ships and aircraft under construction;
(6) means of transportation;
(seven) other property not prohibited by laws and administrative regulations.
The mortgagor may mortgage the property listed in the preceding paragraph together.
Article 402
Where the property specified in Items 1 to 3 of the first paragraph of Article 395 of this Law or the building under construction specified in Item 5 is mortgaged, the mortgage registration shall be handled. The mortgage is established at the time of registration.