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United States
NDR and H1 Project (Conda)

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 Location:
10 km NE from Soda Springs, Idaho, United States

  Project Contacts:
3010 Conda Road
Soda Springs
Idaho, United States
83276
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WebsiteWeb
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  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Phosphate rock
Mining Method
  • Truck & Shovel / Loader
Mine Life13 years (as of Jan 1, 2019)
Based on the preliminary mine plan and cost estimate, the H1 and NDR deposits justify further evaluation as a potential replacement source for the Conda ore feed (Rasmussen Valley Mine).

As of April 24, 2023 Itafos announced the Record of Decision for the Husky 1 / North Dry Ridge (“H1 / NDR”) mine development project. The Company anticipates breaking ground in the summer of 2023.

As of May 10, 2023 Itafos has received the Notice to Proceed for the Husky 1 / North Dry Ridge (“H1 / NDR”) mine development project. Upon receipt of the NTP, the Company has begun capital activities associated with the mine development project. The H1 / NDR project will utilize the Conda plant for processing and fertilizer production.

Preliminary estimated mineral resource mine life extension from 2025 to 2037 remains on track.
Latest NewsItafos Announces Notice to Proceed for Husky 1/North Dry Ridge; Solidifying the Potential for Mineral Resource Life Through 2037(1)     May 10, 2023


Owners

Source: p. 8,39
CompanyInterestOwnership
Itafos Inc. 100 % Indirect
The Conda mines and NDR and H1 projects are owned by its wholly owned subsidiaries, Itafos Conda LLC (Itafos Conda) and Paris Hills Agricom Inc. (PHA).

Contractors

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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/ ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Mining methods are the same for the new properties and ore will continue to be transported via the Union Pacific Railroad (UPRR) from the mines to the CPP. H1 and NDR are located just a few miles south of the RVM and are in proximity to other historical mine sites. These properties benefit from existing haul access, rail line and shop facilities, all of which will facilitate development of the deposits at a reduced cost. The proposed plan makes use of backfill areas available in the historical mine sites guided by best management practices encouraged by the regulators.

Two primary areas would be mined: H1 and NDR.

Mining would include 30 feet of benches for every 90 feet of depth. Mining would occur year-round, up to 24 hours per day, with overlapping shifts, for about 13 years. The mining sequence would mine H1 and NDR consecutively.

Ore would be hauled by truck to the tipple. From there the ore would likely be hauled by existing rail to the existing Conda Plant in Soda Springs, Idaho. Overburden would be ripped or blasted, excavated, and hauled to a temporary or permanent OSA or backfill location. The train loading facility (tipple) and ore stockpiles would be constructed south of the first (lower) switchback of the North Maybe Mine haul road (NFS Road 134). The proposed tipple area is east of the existing rail line and within the eastern portion of the Dry Valley Mine Pit D Lease. A haul road ramp would be constructed from the switchback t ........


Crushing and Grinding
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Processing

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Summary:

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Projected 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 *
Mining scale, tpd 47,000 t
* According to 2019 study.

Reserves at July 1, 2019:

CategoryTonnage CommodityGradeContained Metal
Measured & Indicated 34 Mt P2O5 24.9 % 8.5 Mt
Inferred 0.5 Mt P2O5 24.7 % 0.1 Mt

Commodity Production Costs:

CommodityUnitsAverage
Total cash costs P2O5 USD  ......  Subscription required&nbs
Assumed price P2O5 USD  ......  Subscription required&nbs
* According to 2019 study / presentation.

Operating Costs:

Units2019
OP mining costs ($/ton milled) USD 39 *
* According to 2019 study.

2019 Study Costs and Valuation Metrics :

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

Water Supply
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Heavy Mobile Equipment:

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
....................... Subscription required ....................... Subscription required Subscription required Jun 1, 2023
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Environmental Impact Statement 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
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News:

NewsDate
Itafos Announces Notice to Proceed for Husky 1/North Dry Ridge; Solidifying the Potential for Mineral Resource Life Through 2037(1) May 10, 2023
Itafos Announces Record of Decision Providing Path to Extend Conda Resource Life Through 2037 April 24, 2023

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