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Sudan
Meyas Sand (Block 14) Project

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 Location:
190 km N from Abu Hamad, Sudan

  Project Contacts:
885 West Georgia Street, Suite 2000
Vancouver
British Columbia, Canada
V6C 3E8
Phone  ...  Subscription required
Fax+1 (604) 689-4250
EmailEmail
WebsiteWeb
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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Mine Life13.6 years (as of Jan 1, 2020)
The Meyas Sand Gold Project (formerly Block 14), located in northern Sudan, has the potential to be a valuable large, long-life gold mine for Perseus. The project is fully permitted including Mining Lease, Royalty Agreement & Water Permit.


Owners

Source: p. 22
CompanyInterestOwnership
Perseus Mining Ltd. 70 % Indirect
Ownership Interest:
Orca Gold Inc. - 70%.
Local Partner - 10%.
Government - 20%.

The Exclusive Prospecting License (EPL) for Block 14 was originally granted to Meyas Nub under a Concession Agreement dated 19 May 2010. A purchase agreement dated 1 March 2012, granted Sand Metals Company Ltd (SMCL), a wholly owned subsidiary of Orca, the right to acquire a 70% interest in Meyas Sand Mineral Company Ltd (MSMCL), a Sudanese joint venture company incorporated to hold the Block 14 EPL. Under the terms of the Purchase Agreement, SMCL have paid Meyas Nub US$9.5M and owns 70% of MSMCL.

May 19, 2022 - Perseus Mining Limited (“Perseus”) is pleased to announce that its acquisition of all of the outstanding common shares of Orca Gold Inc. (“Orca”) not already owned by Perseus, by way of a statutory plan of arrangement under the Canada Business Corporations Act (the “Arrangement”) completed on 19 May 2022. As a result of the Arrangement, Orca is a wholly-owned subsidiary of Perseus.

Contractors

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Deposit Type

  • Orogenic
  • VMS
  • Epithermal


Summary:

The mineralisation types being targeted within the Block 14 Project are broadly categorised into 3 groups, namely, Orogenic Gold, Volcanogenic Massive Sulphide, and Rift Associated Epithermal.

The geological framework of Block 14 is dominated by two distinct geological domains - the andesite dominated Gabgaba terrain of the Arabian Nubian Shield (ANS) to the east and the marine sediments of the Keraf Suture in Western Gabgaba; these are separated by the Eastern Gabgaba Fault System (EGFS). The central part of the licence is dominated by the Northern Gabgaba Graben, a downthrown portion of the Keraf that has been infilled by clastic sediments.

Galat Sufar South (GSS)
The GSS deposit is located in the central portion of the Galat Sufar Andesite Domain. The GSS deposit is located just south of the contact between marine sediments to the north (a remnant of the Keraf sediments) and an andesitic volcanic sequence to the south. The andesitic sequence is heterogeneous comprising lava flows, pyroclastic deposits and primary volcanic breccias.

Of importance to deposit formation, the andesite sequence contains a discrete 80 – 200 m wide volcaniclastic-sedimentary horizon which contains dioritic sills / dykes. Mineralisation and alteration are concentrated in this unit, which is bordered to the north and south by increasingly unaltered andesitic flows and further volcaniclastics.

The host unit has been sequentially and intensely altered ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Given the gold grades and proximity to surface, the deposits will be mined via a conventional truck and excavator open pit mining method. The Wadi Doum deposit will be exploited through a single pit approximately 130 m deep. The GSS deposit will be exploited by eight separate pits, six of which are shallow oxide / transitional pits with minimal fresh material. The other two pits (East and Main) are approximately 260 and 270 m deep respectively.

A total of 79.9 Mt of crusher feed at a gold grade of 1.11 g/t is contained within nine pits across the two deposits, along with 119.2 Mt of waste, resulting in a strip ratio of 1.49:1.

A combined mining schedule demonstrates that a processing rate of 6.0 Mt can be sustained for 14 years, including an initial ramp up period in Years 1 and Year 2. A pre-production period of six months is utilized to strip waste from both deposits and stockpile minor amounts of crusher feed, ready for the commissioning of the processing plant. The pit at WD is mined for the first five years and blended with material from GSS. An elevated cut off grade over eight years maximises early returns by blending the significantly higher-grade material from the WD deposit and gain access to the higher grades at depth in the Main and East pits. The last six years rehandle the low-grade stockpiles.


Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityUnitsAvg. AnnualLOM
Gold koz 1672,341
Silver koz  ......  Subscription required
All production numbers are expressed as metal in doré.

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
Plant annual capacity  ......  Subscription required
Tonnes processed, LOM  ......  Subscription required
* According to 2020 study.
Subscription required - Subscription is required.

Reserves at August 31, 2020:

CategoryTonnage CommodityGradeContained Metal
Probable 79,943 kt Gold 1.11 g/t
Indicated 79.9 Mt Gold 1.3 g/t 3,342 koz
Indicated 79.9 Mt Silver 1.7 g/t 4,358 koz
Inferred 18.5 Mt Gold 1.2 g/t 711 koz
Inferred 18.5 Mt Silver 1.6 g/t 936 koz

Commodity Production Costs:

CommodityUnitsAverage
Credits (by-product) Gold USD  ......  Subscription required&nbs
Total cash costs Gold USD  ......  Subscription required *†
All-in sustaining costs (AISC) Gold USD  ......  Subscription required *†
Assumed price Gold USD  ......  Subscription required&nbs
* According to 2020 study / presentation.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units2020
OP mining costs ($/t mined) USD 2.67 *
OP mining costs ($/t milled) USD  ......  Subscription required
Processing costs ($/t milled) USD  ......  Subscription required
* According to 2020 study.
Subscription required - Subscription is required.

2020 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
OP OpEx $M USD  ......  Subscription required
Processing OpEx $M USD 652
G&A costs $M USD 137.1
Total OpEx $M USD  ......  Subscription required
Total Taxes $M USD  ......  Subscription required
Royalty payments $M USD  ......  Subscription required
Gross 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
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
Pre-tax payback period, years  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.


Proposed Heavy Mobile Equipment as of August 31, 2020:
HME TypeModelSizeQuantityLeased or
Contractor
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Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 1, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 1, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2019
Feasibility Study Report 2018
Press Release 2018
Preliminary Economic Assessment 2017
Press Release 2017
Preliminary Economic Assessment 2016
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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