Hannan Metals Files a Permit to Drill a Rare Gold-Copper Discovery in Peru

Peru · Mining

Key Facts

—The filing. Canada-listed Hannan Metals has submitted an environmental permit (a DIA) to Peru’s mining authority to allow the first-ever drilling at its Previsto discovery.

—The prize. The company calls Previsto the first documented alkaline gold-copper system in Peru, a rare deposit type behind some of the world’s richest gold mines.

—The plan. The permit covers 18 drill platforms and 7,650 metres of diamond drilling across two prospects, Previsto Central and Inca Garcilazo.

—The grades. Surface samples at Previsto Central have run as high as 33.1 grams of gold and 120 grams of silver per tonne, though these are selective rock samples, not drilled averages.

—The timeline. Final approvals are expected in the first quarter of 2027, after which drilling can begin.

A junior explorer has moved a step closer to testing one of the more unusual finds in South American mining. Hannan Metals has filed an environmental permit to drill Previsto, a Peru gold-copper discovery it says is the first of its kind ever documented in the country.

The Vancouver-based company, listed in Toronto as Hannan Metals, said it has submitted its Declaración de Impacto Ambiental, or environmental impact statement, to Peru’s Ministry of Energy and Mines. In Peru, that document is the main environmental clearance a project needs before any drill can turn.

The permit applies to Previsto, part of Hannan’s wholly owned Amanecer project in central-eastern Peru, on the steep eastern flank of the Andes. The company first stumbled on the prospect in 2021 while prospecting greenfield ground for copper-gold systems.

For a foreign reader, it helps to understand that a Declaración de Impacto Ambiental is not a full-blown environmental impact study of the sort a large construction project would need. It is a simpler, faster-track document designed for early-stage exploration activities with a small physical footprint.

In Peru’s layered permitting system, the DIA is the standard entry ticket for a junior miner wanting to drill a handful of holes on a new target. Without it, no rig can legally touch the ground.

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What makes the Peru gold-copper discovery unusual

Hannan describes Previsto as an alkaline epithermal gold-copper system, a technical label for a rare family of deposits formed by a particular type of magma. The category matters because it includes some of the largest and highest-grade gold mines on earth.

The company draws direct comparisons to Cripple Creek in Colorado and Porgera in Papua New Guinea, both alkaline systems that have produced millions of ounces of gold. It says Previsto is the first deposit of this type ever recognised in Peru, which would make the wider district worth systematic exploration.

That claim rests on geology, not yet on a drilled resource. The headline grades of up to 33.1 grams of gold per tonne come from hand-picked surface samples, which the company itself cautions are unlikely to represent average grades.

Only drilling will show what lies beneath.

The broader significance of the alkaline label is worth unpacking. Most of the world’s gold comes from other deposit styles, such as orogenic veins or porphyry copper-gold systeMs Alkaline-related deposits are far less common, but when they do occur they can be extraordinarily rich.

That is why the mere suggestion of a new alkaline province in the Andes tends to catch the attention of geologists and mining investors alike. If Previsto proves to be the real thing, it could open a whole new chapter of exploration across similar rocks in Peru.

Why the permit is the real milestone

For a company that has never drilled the site, the environmental filing is the gate everything else waits behind. The permit would allow 18 drill pads and 7,650 metres of diamond drilling, spread across the Previsto Central and Inca Garcilazo prospects.

Notably, the plan is small in physical terms. The two work areas cover about 361 hectares, but the actual ground disturbance is just 2.3 hectares, a footprint the company stresses as it courts nearby communities.

Community consent has been central. Hannan says it held public meetings in the hamlet of Nueva Palestina, where residents are formally on record approving the proposed drill program, per the company. In Peru, where mining conflicts routinely stall projects, that paper trail can matter as much as the geology.

“The DIA is the key that unlocks the drill bit at Previsto,” chief executive Michael Hudson said, framing the filing as the moment the project shifts from mapping to testing.

Diamond drilling, the method proposed here, is the industry gold standard for obtaining a continuous cylinder of rock from depth. It lets geologists see exactly how the mineralisation changes with depth, measure the angles of veins, and collect samples for laboratory assays.

For a discovery that has so far only been scratched at the surface, those first drill cores will be the moment of truth.

What it means for investors watching Peru

Peru is already one of the world’s top copper and gold producers, but its pipeline of genuinely new discoveries is thin, and permitting can be slow. A fresh, unusual system with community backing is the kind of story that draws exploration capital to the country.

The caution is timing. Final approvals are not expected until early 2027, and even a successful first drill campaign would be years from anything resembling a mine.

For now, Previsto is a promising target, not a proven one.

What to watch next is whether the ministry raises any technical observations on the DIA during the review period. In Peru, it is common for regulators to request clarifications or small adjustments before granting final approval.

Any such back-and-forth could shift the timeline. Another open question is how the drill results from Previsto Central will compare with those from Inca Garcilazo, and whether either prospect can deliver the kind of consistent, mineable widths that turn a geological curiosity into an economic deposit.

The market will also be watching to see if other explorers begin staking ground nearby, a classic sign that the industry believes a new district is emerging.

Frequently Asked Questions

What did Hannan Metals actually file?

It submitted a Declaración de Impacto Ambiental, Peru’s core environmental permit for drilling, to the Ministry of Energy and Mines. Approval would clear the way for the first-ever drilling at its Previsto gold-copper discovery.

Where is the Previsto discovery?

Previsto is part of Hannan’s Amanecer project in central-eastern Peru, on the eastern flank of the Andes at elevations between roughly 800 and 2,000 metres. The company discovered it in 2021.

When could drilling start?

Hannan expects final permits in the first quarter of 2027, after which it can begin its maiden drill program of up to 7,650 metres across 18 platforms. A mine, if one is ever built, would be many years further out.