Article 12

Mineral and hydrocarbon deposits of any nature that exist within the territory of the nation, beneath the territorial sea bed, within the exclusive economic zone and on the continental shelf, are the property of the Republic, are of public domain, and therefore inalienable and not transferable. The seacoasts are public domain property.

Article 13 

The territory shall never be assigned, transferred, leased or in any manner whatsoever conveyed, even temporarily or partially, to foreign States or other international law subjects.