Mining Intelligence and News
Nicaragua

Porvenir Project

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Australia

Porvenir Project

Location: 260 km NE from Managua, Nicaragua

Project Contacts:

Bo. 28 de Mayo
Bonanza
Nicaragua

Contacts:

Additional Resources for Suppliers & Investors

Categories

Overview

Mine TypeUnderground
StagePre-Feasibility
Commodities
  • Gold
  • Silver
  • Zinc
Mining Method
  • Bench & Fill
  • Avoca
  • Sub-level stoping
  • Transverse stoping
Backfill type ... Lock
Mine Life... Lock
SnapshotOn March 16, 2023, Mineros S.A. announced the results of the Hemco Technical Report, which included the results of the pre-feasibility study on the Porvenir Project.

The Porvenir Project is a pre-development-stage project located 10.5 km southwest from the existing Hemco facilities. Mineralization consists of a volcanic hosted gold-zinc-silver system.

In the third quarter of 2023, with the aim of increasing or upgrading the category of current
Mineral Resources and Mineral Reserves, the Company completed 4,433 metres of diamond drilling in 14 holes, achieving approximately 102% of the 2023 drilling plan. Analytical results and geological model updates are expected to be completed in the fourth quarter of 2023, with a Mineral Resource update anticipated for 2024.
Related AssetHemco

Owners

SourceSource
CompanyInterestOwnership
Mineros S.A. 99.9975 % Indirect
Hemco Nicaragua S.A. (operator) 100 % Direct
Mineros holds a 99.9975% interest in the Hemco Property through its interest in its subsidiary, Hemco Nicaragua S.A. Mineros holds a 99.995% interest in Hemco Nicaragua directly, and a further 0.0025% interest indirectly through Mineros Aluvial S.A.S. BIC (Mineros Aluvial), a wholly owned subsidiary of Mineros. The remaining 0.0025% interest in Hemco Nicaragua is held by Mercantil Colpatria S.A. (Colpatria), a major shareholder of Mineros. Hemco Nicaragua holds a 100% interest in the majority of the concessions that constitute the Hemco Property.

Contractors

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SourceSource

Deposit type

  • Epithermal
  • Volcanic hosted
  • Vein / narrow vein

Summary:

The Porvenir, Leticia, and San Antonio deposits are within the Constancia Group. The majority of mineralization within the concession area consists of volcanic hosted gold-silver ± copper, lead, and zinc epithermal quartz veins of intermediate sulphidation type. There is a vertical zonation of metals, and base metal contents are higher at depth, although, in general, gold grades appear to stay constant except in those areas near surface where residual gold has been liberated by the oxidation of pyrite and weathering/disintegration of host rock. The epithermal veins at Bonanza are characterized by moderate to intense propylitic alteration of the andesite wall rocks locally accompanied by argillic alteration and silicification. There are several variations in style of mineralization among the veins. In the Bonanza district, all of the veins are interpreted to lie in the middle to deeper levels of an epithermal system. On the basis of base metal content, the Porvenir, Leticia and San Antonio veins in the Constancia Group are interpreted to be deeper relative to the Pioneer and Panama groups. The Porvenir gold vein system comprises five main veins, part of the Constancia Group. The five main veins at Porvenir are Porvenir Norte, Oro Fino, Real McKoy, Elena, and Porvenir Sur.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

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Processing

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Production

CommodityProductUnitsAvg. AnnualLOM
Gold Payable metal koz 497,263
Gold Metal in conc./ doré koz 57510
Silver Payable metal koz 1,001,123
Silver Metal in conc./ doré koz 1121,011
Zinc Metal in zinc concentrate M lbs 38346
Zinc Payable metal M lbs 290
Gold Equivalent Payable metal koz 755,441
Gold Equivalent Metal in doré koz 816,370

Operational metrics

Metrics
Daily ore mining rate  ....  Subscribe
Daily processing capacity  ....  Subscribe
Annual ore mining rate  ....  Subscribe
Ore tonnes mined, LOM  ....  Subscribe
Tonnes processed, LOM  ....  Subscribe
* According to 2022 study.

Production Costs

CommodityUnitsAverage
All-in sustaining costs (AISC) Gold Equivalent USD  ....  Subscribe
Assumed price Zinc USD  ....  Subscribe
Assumed price Silver USD  ....  Subscribe
Assumed price Gold USD  ....  Subscribe
* According to 2022 study / presentation.

Operating Costs

Currency2022
UG mining costs ($/t milled) USD 41.4 *  
Processing costs ($/t milled) USD  ....  Subscribe
G&A ($/t milled) USD  ....  Subscribe
Total operating costs ($/t milled) USD  ....  Subscribe
* According to 2022 study.

Project Costs

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscribe
Expansion CapEx $M USD  ......  Subscribe
Sustaining CapEx $M USD  ......  Subscribe
Closure costs $M USD  ......  Subscribe
Total CapEx $M USD  ......  Subscribe
UG OpEx $M USD  ......  Subscribe
Processing OpEx $M USD 213.9
G&A costs $M USD 11.3
Total OpEx $M USD  ......  Subscribe
Royalty payments $M USD  ......  Subscribe
Gross revenue (LOM) $M USD  ......  Subscribe
Operating margin (LOM) $M USD  ......  Subscribe
EBITDA (LOM) $M USD  ......  Subscribe
Net Income (LOM) $M USD  ......  Subscribe
Pre-tax Cash Flow (LOM) $M USD  ......  Subscribe
After-tax Cash Flow (LOM) $M USD  ......  Subscribe
Pre-tax NPV @ 5% $M USD  ......  Subscribe
Pre-tax NPV @ 10% $M USD  ......  Subscribe
Pre-tax NPV @ 15% $M USD  ......  Subscribe
After-tax NPV @ 5% $M USD  ......  Subscribe
After-tax NPV @ 10% $M USD  ......  Subscribe
After-tax NPV @ 15% $M USD  ......  Subscribe
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Pre-tax payback period, years  ......  Subscribe
After-tax payback period, years  ......  Subscribe

Required Heavy Mobile Equipment

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Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 24, 2023
....................... Subscription required ....................... Subscription required Subscription required Aug 28, 2023
....................... Subscription required ....................... Subscription required Subscription required Aug 24, 2023
....................... Subscription required ....................... Subscription required Subscription required Aug 28, 2023

EmployeesContractorsTotal WorkforceYear
...... Subscription required ...... Subscription required ...... Subscription required 2022

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