Buenaventura Invests US$36.2 Million to Extend Uchucchacua Mine Life
Peru · Mining
Key Facts
- Investment Buenaventura will spend US$36.22 million on operational and environmental changes at Uchucchacua.
- Extension The plan adds 30 months to the mine’s schedule, pushing closure to June 2029.
- Approval Senace, Peru’s environmental permitting agency, is evaluating the request. No decision date is set.
- Output Buenaventura expects to extract 730,000 tonnes of ore in 2026, below the 960,000 tonnes allowed.
- History The mine produced only 21% of its permit in 2023, 38% in 2024 and 45% in 2025, due to equipment and access issues.
- Works Main spending includes US$12.31 million for the concentrator plant and US$11.42 million for tailings dam No. 3.
Peru’s Buenaventura plans to keep its silver mine running to June 2029, pending environmental approval.
Peru’s Compañía de Minas Buenaventura has revived a US$36.22 million investment plan at its Uchucchacua silver, lead and zinc mine in the Lima region. The goal is to extend the mine’s life by 30 months, to June 2029, if the environmental agency Senace approves the request.
Why the mine needs more time
Uchucchacua has been mining well below its permitted levels for three straight years. Buenaventura blames equipment availability and limited access to the ore body.
In 2023, the mine produced just 21% of the approved amount. That figure rose to 38% in 2024 and to 45% in 2025.
For 2026, the company plans to extract 730,000 tonnes of mineral. The permit allows 960,000 tonnes for the year.
The slower pace means Buenaventura needs extra time to recover all its approved reserves. The investment plan is designed to make that happen without exceeding the maximum mining rate.
What the US$36.2 million buys
The biggest single item is US$12.31 million to modify the concentrator plant. That is the facility that separates silver, lead and zinc from the crushed rock.
Another US$11.42 million will go to raising tailings dam No. 3. A tailings dam is the structure that holds the waste left after the valuable metal is taken out—so enlarging it means more room for the leftover rock.
The rest covers access roads, power systems, ventilation, drilling platforms, and water recirculation. The plan also adds the Alto Huantajalla quarry as a new source of material.
The concentrator’s capacity stays at 6,000 tonnes per day. Buenaventura says it will not exceed the maximum mining rate under its permit.
How the schedule extends
Buenaventura wants to add 30 months to the mine’s operating schedule. If approved, Uchucchacua would keep running until June 2029.
Senace, Peru’s environmental permitting agency, has started evaluating the request. This is the same agency that approves major mining project changes, so its sign-off is the gatekeeper for the timeline.
No resolution date has been announced—the outcome depends on Senace’s technical and environmental review, which can take time.
The extension would let Buenaventura extract its approved reserves without speeding up production beyond current limits. That means a steadier, more predictable operation.
Why Latin American investors should care
Uchucchacua is one of Peru’s traditional silver producers, and this investment shows the company’s commitment to the asset. For anyone living in Peru or tracking the region’s mining sector, this is a clear sign that the silver, lead and zinc trade still has legs.
The lower production levels reflect real operational constraints, not a change in strategy. So this plan is about catching up on lost time, not abandoning the mine.
For shareholders, the US$36.2 million outlay is relatively small compared to the value of the remaining reserves. The key risk is regulatory timing: an approval delay could push the schedule back, so watch Senace’s moves.
Buenaventura’s shares trade on the Lima exchange and as an ADR in New York. This project update matters for anyone tracking Peruvian mining stocks or the broader metals market in Latin America.
The bigger picture for Buenaventura
Buenaventura is one of Peru’s largest precious metals producers, and this move fits into a broader pattern of keeping mature mines alive with targeted investment. The Uchucchacua plan is modest in size but strategically important for maintaining output.
The decision to stay below permit levels suggests a cautious approach to safety and ore recovery. That should support a smoother approval process, but nothing is guaranteed—Senace has the final word.
If the extension is granted, Uchucchacua would operate into mid-2029, giving Buenaventura more time to draw down its approved reserves. That could also smooth out its production profile across the company’s other assets.
For now, the roadmap is clear: spend US$36.22 million, keep the plant at 6,000 tonnes per day, and wait for Senace’s verdict. The clock is ticking but not loudly—no decision date has been set.
Frequently Asked Questions
What is Senace?
Senace is Peru’s environmental permitting agency. It reviews requests for mining project changes like the one Buenaventura filed for Uchucchacua.
Why is the mine running below its permit?
Buenaventura says equipment availability and access to the ore body have limited production. In 2023 it mined 21% of the approved amount, in 2024 38% and in 2025 45%.
When would the mine close?
If Senace approves the extension, Uchucchacua would operate until June 2029. Without approval, the current schedule applies.
What is a tailings dam?
A tailings dam is a structure that holds the waste material left after valuable metals are extracted from ore. Buenaventura will spend US$11.42 million to enlarge dam No. 3 at Uchucchacua.
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Sources: bnamericas.com; gestion.pe; mineriaenlinea.com; mineriayproyectos.com; sahmcapital.com
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