With the publication of the public notice for the 9th Round of Area Availability scheduled for next Monday, December 22nd, the mining sector turns its attention to the new opportunities offered by the National Mining Agency (ANM). However, to participate strategically, it is crucial to understand the administrative workflow that precedes a public notice: the direct relationship between the agency’s “stock of areas” and the “availability” procedure.
These two concepts define the lifecycle of a mining tenement and how the Union, through the ANM, manages and reallocates mineral assets to the market.
What is the Stock of Areas?
The “stock of areas” can be understood as the ANM’s central repository for all mining tenements that have been returned to the Union’s management. When a title is extinguished – whether by relinquishment, forfeiture, denial, or cancellation – the corresponding area does not immediately become free for new applications.
Instead, it is incorporated into this administrative stock. There, the area awaits an internal agency analysis to then be offered to the market at an opportune time through a specific public notice. It is, therefore, a dynamic database of assets awaiting a new destination.
The Area Availability Process
“Availability” is the bidding procedure through which the ANM offers selected areas from its stock to the public. It is the only legal mechanism for new interested parties to acquire rights over these specific areas.
The process is structured and competitive, occurring in well-defined stages:
- Selection and Public Notice: The ANM selects a set of areas from the stock and publishes a Public Notice of Availability, establishing the rules, schedule, and requirements for participation.
- Public Offering and Auction: The dispute for the areas occurs entirely on an electronic platform, SOPLE (Public Offering and Area Auction System). If an area receives more than one valid bid, it proceeds to an electronic auction, being awarded to the highest bid.
In summary, the stock is the repository of areas recovered by the ANM, while availability is the formal and competitive procedure to transfer them to new titleholders.

How to Consult Areas in Stock and on Offer?
Consulting areas, both those awaiting in stock and those already on offer, must be done through the ANM’s official platforms. Mastering these tools is crucial for strategic planning.
| Platform | Purpose | How to Use |
| SIGMINE | Spatial and Stock Consultation | The Mining Geographic Information System allows for the visualization of all processes on an interactive map. It is the tool to identify areas that are already in the stock but have not yet been included in a public notice. |
| SOPLE | Offer Consultation and Participation | The Public Offering and Area Auction System is the platform where public notices are published and disputes take place. It is the official channel to research open tenders and the list of available areas. |
Conclusion
With the 9th Round approaching, understanding the “stock-availability” workflow becomes even more relevant. Knowing how to consult areas awaiting in stock allows for advance planning, while mastering SOPLE is mandatory for effective participation in the tenders.
The transition of an area from the stock to a public notice of availability is a technical and regulated process. Ígnea offers specialized advisory throughout the entire lifecycle of a mineral asset, ensuring our clients are always one step ahead in the market.
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