31 October 2026
A rich property can be a bad deal
High grade and a good investment are not the same thing. With Brazilian mineral rights, what you buy is a title granted by the Federal Government, and its value depends on what sits above and around the deposit.
The confusion
A property with good geology is often pitched as a good opportunity. The two frequently go together, but they are not the same measure. Geology answers what may lie underground. The opportunity depends on a different question: what it takes to turn that potential into production, and who has the right to do it.
This piece does not say that mineralized areas are poor investments. It says that geological quality alone is not enough to assess a deal.
What you actually buy
Brazil's Constitution separates the deposit from the land. Mineral resources are property distinct from the surface and belong to the Federal Government (CRFB/88, art. 176, caput). Exploration and mining may only be carried out under a federal authorization or concession (art. 176, § 1), and these cannot be assigned or transferred without the prior consent of the granting authority (art. 176, § 3).
In practice, a buyer of a mineral right acquires a title at a given stage, with its own obligations, not the ore. The title's value depends on its standing, not only on what lies beneath it.
Where value is lost
At the title stage. An exploration permit authorizes study of the area. Extraction before the mining concession is allowed only exceptionally, with ANM's prior authorization and subject to environmental law (Mining Code, art. 22, § 2).
On the ground. Exploration and mining on Indigenous lands require authorization from the National Congress after the affected communities are heard (CRFB/88, art. 231, § 3). Other restrictions may exist without appearing on the title map.
In licensing. Activities that may cause environmental degradation require prior environmental licensing (Law 6,938/1981, art. 10). The time and cost of that path are part of the price.
In the transfer. Assignment of an exploration authorization is valid only once registered with ANM, and the assignee must meet the legal requirements (Mining Code, art. 22, I and I-A).
Five questions before an offer
1. Who is the holder registered with ANM, and can they assign the right?
2. What stage is the process at, and which deadlines and obligations are open?
3. What overlaps the area: other titles, protected areas, Indigenous lands or traditional communities?
4. Which licences will the operation need, and how long is that path likely to take?
5. Are there encumbrances, disputes or open items that change what is being bought?
For sellers
The same reasoning works in reverse. A holder who comes to the table with the title, its obligations and the territory in order shows value that grade alone cannot prove, and leaves less room for every doubt to become a discount.
Sources: CRFB/88, arts. 176 and 231; Mining Code (Decree-Law 227/1967), art. 22; Law 6,938/1981, art. 10. Official texts at planalto.gov.br, consulted on 31 October 2026, without repealed passages. Informative text; not legal advice or an investment recommendation. planalto.gov.br