Mining Intelligence and News
United States

NDR and H1 Project

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Overview

Mine TypeOpen Pit
StageConstruction
Commodities
  • Phosphate rock
Mining Method
  • Truck & Shovel / Loader
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Mine Life... Lock
SnapshotFor the year ended December 31, 2023, Itafos Inc. advanced activities related to the extension of Conda’s mine life through permitting and development of Husky 1/North Dry Ridge (H1/NDR) project as follows:
- on April 24, 2023, the Company announced the Record of Decision for H1/NDR mine development project, which represents the end of the National Environmental Policy Act process. The H1/NDR project comprises primarily of civil activities and infrastructure development;

- on May 8, 2023, the Company received the Notice of Proceed for H1/NDR mine development project;

- advanced H1/NDR capital activities including earthworks and related water management features for the rail loadout and haul road, improvement of the maintenance shop, and existing road relocation;

- advanced development, including engineering of key infrastructure and progression of related magnesium oxide reduction initiatives to enhance SPA production and sales volumes, including continuation of test work.
Related AssetConda

Owners

SourceSource
CompanyInterestOwnership
Itafos Inc. 100 % Indirect
The Conda mines and NDR and H1 projects are owned by its wholly owned subsidiaries, Itafos Conda LLC (Itafos Co Inc. (PHA).

Deposit type

  • Sedimentary

Summary:

The structural feature that dominates the NDR and H1 areas is the northwest trending North Dry Valley Anticline. NDR and H1 are located on the northeast limb of the anticline and as such, the strata of NDR and H1 dips very steeply to near vertical to the northeast.

Faulting in the northern portion of the NDR lease has forced the Meade Peak Member of the Phosphoria Formation to uplift to the overlying Dinwoody Formation. This has resulted in the absence of the Meade Peak Member north of the Blackfoot normal fault with in the NDR property.

Additional folding and faulting are found in the southern portion of the H1 area, notably, the Stewart Anticline, which trends northeast/southeast. The axis of the Stewart Anticline are within the southern portion of the H1 property and allow for a large outcrop area of the Meade Peak Member.

The Meade Peak Member of the Phosphoria Formation contains the phosphate ore within the Conda Projects and is overlain by the Rex Chert member and underlain by the Park City Formation. The Quaternary Alluvium is not very extensive and where present, is only about 5 ft to 20 ft thick. The Meade Peak Member is broken into five mining zones throughout the Conda Projects where the Upper Phosphate and Lower Phosphate Zones are the primary phosphate mineralized zones. The significant mineralized zones encountered on the property are shown below:
- Upper Overburden Zone (Hanging Wall mud).
- Upper Phosphate Zone - Low/medium to high grade phosphate zone. Interbedded phosphorite, mudstone, siltstone, limestone, and shale.
- Center Interburden Zone – Shale and mudstone.
- Lower Phosphate Zone – Low to high grade phosphate zone. Interbedded phosphorite, mudstone, siltstone, limestone, and shale.
- Lower Underburden Zone (Footwall mud) – Reddish brown siltstone with black fossiliferous siltstone and some phosphorite.

The phosphate mineralization presented in this TR is sedimentary in nature, occurring in a conformable sequence of alternating phosphatic and weakly- to non-phosphatic shale, mudstone, carbonate, and chert beds within the Meade Peak Member of the Permian Phosphoria Formation. The Phosphoria Formation occurs within the Western Phosphate Field that occupies in excess of 135,000 square miles, spanning Eastern Idaho, Southern Montana, Western Wyoming, and northern half of Utah (Sheldon 1989).

The phosphate mineralization encountered in the Meade Peak Member is stratigraphic in nature and the deposit type is considered a typical example of a marine sedimentary phosphate deposit. The phosphate mineralization occurred during the primary depositional processes and there are no known secondary phases of phosphate mineralization or enrichment identified in the deposits.

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

CommodityUnitsAvg. AnnualLOM
Phosphorus k tons 5485,976
All production numbers are expressed as oxide in ore.

Operational metrics

Metrics
Waste tonnes, LOM 209,924 k tons *
Ore tonnes mined, LOM 23,989 k tons *
Total tonnes mined, LOM 233,913 k tons *
* According to 2019 study.

Production Costs

CommodityUnitsAverage
Total cash costs P2O5 USD 175 / ton *  
Assumed price P2O5 USD 222 / ton *  
* According to 2019 study / presentation.

Operating Costs

Currency2019
OP mining costs ($/t milled) USD 35.4 *  
* According to 2019 study.

Project Costs

MetricsUnitsLOM Total
Closure costs $M USD  ......  Subscribe
Total CapEx $M USD  ......  Subscribe
OP OpEx $M USD  ......  Subscribe
Pre-tax IRR, %  ......  Subscribe

Heavy Mobile Equipment

Fleet data has not been reported.

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 1, 2019
....................... Subscription required ....................... Subscription required Subscription required Jul 1, 2019
....................... Subscription required ....................... Subscription required Subscription required Jun 1, 2023
....................... Subscription required ....................... Subscription required Subscription required Jun 1, 2023

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