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Panama
Cerro Quema Project

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 Location:
47 km SW from Chitre, Panama

  Project Contacts:
Suite 202 - 595 Howe St Vancouver, BC
Vancouver
British Columbia, Canada
V6C 2T5
Phone  ...  Subscription required
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
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  • Filings & News

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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Gold
  • Silver
  • Copper
Mining Method
  • Truck & Shovel / Loader
Mine Life6 years (as of Jan 1, 2022)
The mine environmental permitting process has been ongoing and in February 2021, the Ministry of Environment conducted their final site inspection of the Cerro Quema Project. As a result of the positive site inspection review, the Category 3 Environmental & Social Impact Assessment (“ESIA”) technical aspects were approved.


Owners

Source: p. 27
CompanyInterestOwnership
Orla Mining Ltd. 100 % Indirect
The Cerro Quema deposit is 100% owned by Orla Mining Ltd. (Orla) through its subsidiary Minera Cerro Quema SA (MCQ).

Contractors

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Deposit Type

  • Breccia pipe / Stockwork
  • Epithermal
  • Porphyry
  • Volcanic hosted


Summary:

The observed geological and geochemical characteristics of the La Pava and Quema-Quemita gold deposits at Cerro Quema are consistent with those of volcanic hosted, epithermal, high sulfidation (HS) gold-silver deposits.

The Cerro Quema project is spatially associated with the E-trending regional Rio Joaquin fault system. The fault zone is 30 km long and shows evidence of reverse dip-slip movement. It juxtaposedAzuero Igneous basement rocks against Azuero Arc Group rocks. Mesoscale open folds in the region have SW plunging axes and moderate limb dips, indicative of dextral transpression with dominant reverse dip-slip motion (Isaac Corral 2016). The Cerro Quema mineralized zone lies 1.5 to 3km north of the Rio Joaquin fault. Longo has postulated sinestral movement along the most prominent of the NE striking faults, possibly resulting in dismemberment of an originally continuous mineralized zone with the La Pava zone being the left lateral offset of the Quema-Quemita deposit (Longo 2018).

Distinct styles of mineralization observed today are due primarily to supergene effects on the primary mineralization. The known mineralized zones (Pava, Quema-Quemita, Idaida-Caballito, Pelona) were likely similar to Caballito before oxidation. Three mineralization styles are observed:

1. Epithermal high sulfidation Au mineralization, associated with variably intensely developed advanced argillic alteration of dacitic rocks with local areas of silicification ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Project includes detailed pit designs and phases for the La Pava and Quema pits.

Mine operations are planned to be typical of similar small scale open pit operations, consisting of conventional drill, blast, load, haul, and stockpile operations. Direct Mining and Mine Maintenance is planned as Owner operated mining operations. The Owner will be responsible for all equipment mob/demob, operating, and labour costs as well as maintenance of the mining equipment. Blasting unit operations will be performed by a specific blasting company contractor. Supervision, geology and mine planning will be done by the Owner.

Both the La Pava and Quema deposit are located on steep terrain which presents opportunities and challenges for roads, phasing, and ultimate pit designs. In both pits initial haulage roads are designed to take advantage of the natural slopes and gain access to the top of deposits. These initial access haulage roads allow the pits to leave limited ramps in the final design high walls.

Quema Pit Design
The Quema ultimate pit is split into 2 phases after the access cut has been established, to begin stripping and ore mining. The access cut was designed to minimize rehandle of fill slopes within the ultimate pit limit. Any near surface ore intersected during pre-production is sent to stockpile.

Phase 1 is split into 2 sub phases for operational considerations to allow the east and central hilltops to be mined at different ........


Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityProductUnitsAvg. AnnualLOM
Gold Payable metal oz 488,308
Gold Metal in doré oz 81,000488,675
Silver Payable metal oz  ......  Subscription required
Silver Metal in doré oz  ......  Subscription required  ......  Subscription required
Gold Equivalent Payable metal oz  ......  Subscription required
Gold Equivalent Metal in doré oz  ......  Subscription required

Operational Metrics:

Metrics
Stripping / waste ratio  ......  Subscription required
Waste tonnes, LOM  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Total tonnes mined, LOM  ......  Subscription required
Daily processing capacity  ......  Subscription required
Tonnes processed, LOM  ......  Subscription required
Annual processing capacity  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

Reserves at November 2, 2021:
Cerro Quema Mineral Reserve: The minimum cut-off grade used for ore/waste determination is NSR>= $6.34/tonne for Oxide and $9.18 for Mixed at the La Pava deposit and $6.50/tonne for Oxide and $8.35/tonne for Mixed at the Quema deposit.

CategoryOreTypeTonnage CommodityGradeContained Metal
Probable Oxide & Mixed 21.7 Mt Gold 0.8 g/t 562 koz
Probable Oxide & Mixed 21.7 Mt Silver 2.18 g/t 1,526 koz
Indicated Sulphide 31,952 kt Gold 0.31 g/t 315 koz
Indicated Oxide 31,791 kt Gold 0.65 g/t 666 koz
Indicated Mixed 2,479 kt Gold 0.52 g/t 41 koz
Indicated Sulphide 31,952 kt Silver 2.2 g/t 2,260 koz
Indicated Oxide 31,791 kt Silver 2.01 g/t 2,059 koz
Indicated Mixed 2,479 kt Silver 2.58 g/t 205 koz
Indicated Sulphide 31,952 kt Copper 0.83 % 585 M lbs
Indicated Sulphide 31,952 kt Copper Equivalent 0.96 % 676 M lbs
Inferred Sulphide 22,569 kt Gold 0.21 g/t 155 koz
Inferred Oxide 7,232 kt Gold 0.33 g/t 77 koz
Inferred Mixed 250 kt Gold 0.39 g/t 3 koz
Inferred Sulphide 22,569 kt Silver 1.18 g/t 856 koz
Inferred Oxide 7,232 kt Silver 2.43 g/t 564 koz
Inferred Mixed 250 kt Silver 0.66 g/t 5 koz
Inferred Sulphide 22,569 kt Copper 0.77 % 381 M lbs
Inferred Sulphide 22,569 kt Copper Equivalent 0.85 % 425 M lbs

Commodity Production Costs:

CommodityUnitsAverage
Total cash costs Gold USD  ......  Subscription required *†
All-in sustaining costs (AISC) Gold USD  ......  Subscription required *†
Assumed price Silver USD  ......  Subscription required&nbs
Assumed price Gold USD  ......  Subscription required&nbs
* According to 2022 study / presentation.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units2022
OP mining costs ($/t mined) USD 2.15 *
OP mining costs ($/t milled) USD  ......  Subscription required
Processing costs ($/t milled) USD  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required
Total operating costs ($/t milled) USD  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

2022 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Closure costs $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
OP OpEx $M USD  ......  Subscription required
Processing OpEx $M USD 96.5
Refining and transportation $M USD  ......  Subscription required
G&A costs $M USD 52.1
Total OpEx $M USD  ......  Subscription required
Total Taxes $M USD  ......  Subscription required
Royalty payments $M USD  ......  Subscription required
Net revenue (LOM) $M USD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 5% $M USD  ......  Subscription required
After-tax NPV @ 5% $M USD  ......  Subscription required
After-tax NPV @ 10% $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.


Proposed Heavy Mobile Equipment as of January 18, 2022:
HME TypeModelSizeQuantity
Backhoe ....................... Subscription required
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Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 4, 2022
....................... Subscription required ....................... Subscription required Subscription required Jan 18, 2022
....................... Subscription required ....................... Subscription required Subscription required Jan 18, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 4, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2022

Corporate Filings & Presentations:

DocumentYear
Pre-Feasibility Study Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
Pre-Feasibility Study Report 2014
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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