Botswana

K.Hill Project

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Categories

Overview

Mine TypeOpen Pit
StagePermitting
Commodities
  • Manganese
Mining Method
  • Truck & Shovel / Loader
Mine Life... Lock
ShapshotLoci Environmental (Pty) Ltd (Loci) prepared an Environmental Impact Assessment (EIA) for the K.Hill Project and an Environmental Impact Statement (EIS) based on the work completed for the EIA. The EIS was submitted to the Botswana Department of Environmental Affairs (DEA) in July 2023.

The EIA assesses only the first 11 years of mine operations; impact assessments beyond the first 11 years of the LOM will need to be assessed by an independent environmental consultant. It is anticipated that any changes would not be material in terms of the EIA process and could be done through amendments to the existing EIA. The process of amending the EIA is well-stipulated by the DEA.

Owners

SourceSource
CompanyInterestOwnership
Giyani Metals Corp. 100 % Indirect
Giyani Metals Corp. through its wholly-owned Botswana subsidiary Menzi Battery Metals (Pty) Ltd. is the owner of the past producing Kgwakgwe Hill mine and project (K.Hill Project).

Contractors

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Deposit type

  • Sedimentary
  • Breccia pipe / Stockwork

Summary:

The manganese mineralisation at K.Hill occurs primarily as a supergene-enriched Mn-shale present in two distinct horizons in the upper portion of a larger shale package within the Black Reef Quartzite Formation of the Transvaal Supergroup. The Mn-shale horizons are overlain by a hard chert dolomite breccia (CDB) unit. In plan, the northern part of the K.Hill deposit is approximately kidney-shaped, reflecting the pattern of outcrop along the edges of the hill, while to the south, there is outcrop expression.

The Mn-shale outcrops along the northerly scarp slope of the Kgwakgwe Hill and dips into the hill. The strata at K.Hill dip gently toward the NW, at an average of approximately 5° to 10°, and S and Z parasitic folding is common. Numerous outcrops display parasitic folding, with local dips varying from 45° to almost subvertical. This is not consistent with the overall shallow dip of the Mn-shale and adjacent units. Where the deposit outcrops in the north, the Mn-shale unit is kidney shaped. The unit varies between approximately 2 m and 15 m thick, with an average thickness in the order of 4 m and has a delineated extent of approximately 1,900 m N-S and 350 m E-W. Some of these thicker intersections may be local fold duplications of a single horizon. In general, the Southern Extension Area shows greater thicknesses of the mineralisation than in the north.

The mineralised horizons have been interpreted as two main packages: the Upper Mn-shale Horizon A and the Lower Mn-shale Horizon B, both of which dip shallowly (5° to 10°) toward the NW.

The Upper Mn-shale, which hosts the highest-grade manganese oxide mineralisation, varies between approximately 2 m and 15 m in thickness, with an average thickness of 4 m. Based on the existing interpretation, the Upper Mn-shale has been divided, based on grade values, into a continuous high-grade core with distinct, although slightly less continuous, lower-grade zones in the immediate footwall and hanging wall. The Lower Mn-shale horizon ranges from 1 m to 12 m in thickness with an average thickness of 3.5 m and does not show the distinct banding of grade seen in the Upper Mn-shale horizon. The two main mineralised horizons are separated by approximately 4 m of shale waste rock.

The Southern Extension Area is separated from the Northern Area of the resource by several NNW-SSE trending faults, which progressively downthrow the mineralised horizons to the south.

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
Manganese sulfate monohydrate Crystals kt 73808

Operational metrics

Metrics
Annual mining rate  ....  Subscribe
Annual ore mining rate  ....  Subscribe
Annual production capacity  ....  Subscribe
Annual processing capacity  ....  Subscribe
Stripping / waste ratio  ....  Subscribe
Waste tonnes, LOM  ....  Subscribe
Ore tonnes mined, LOM  ....  Subscribe
Total tonnes mined, LOM  ....  Subscribe
Tonnes processed, LOM  ....  Subscribe
* According to 2022 study.

Production Costs

CommodityUnitsAverage
Assumed price Manganese sulfate monohydrate USD  ....  Subscribe
* According to 2022 study / presentation.

Operating Costs

Currency2022
OP mining costs ($/t mined) USD 3.33 *  
OP mining costs ($/t milled) USD  ....  Subscribe
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
Sustaining CapEx $M USD  ......  Subscribe
Closure costs $M USD  ......  Subscribe
Total CapEx $M USD  ......  Subscribe
OP OpEx $M USD  ......  Subscribe
Processing OpEx $M USD 1,293
G&A costs $M USD 27.2
Total OpEx $M USD  ......  Subscribe
Total Taxes $M USD  ......  Subscribe
Royalty payments $M USD  ......  Subscribe
Gross revenue (LOM) $M USD  ......  Subscribe
EBITDA (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 @ 8% $M USD  ......  Subscribe
After-tax NPV @ 5% $M USD  ......  Subscribe
After-tax NPV @ 10% $M USD  ......  Subscribe
After-tax NPV @ 8% $M USD  ......  Subscribe
Pre-tax IRR, %  ......  Subscribe
After-tax IRR, %  ......  Subscribe
Pre-tax payback period, years  ......  Subscribe
After-tax payback period, years  ......  Subscribe

Heavy Mobile Equipment

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Personnel

Mine Management

Job TitleNameProfileRef. Date
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EmployeesYear
...... Subscription required 2022

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