Overview
Stage | Permitting |
Mine Type | Open Pit |
Commodities |
|
Mining Method |
|
Production Start | ...  |
Mine Life | 13 years (as of Jan 1, 2021) |
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.
During 2020 and 2021, the Company advanced activities related to the extension of Conda’s mine life through permitting and development of H1/NDR, including progression of the National Environmental Policy Act (“NEPA”) Environmental Impact Statement preparation and public engagement process. On October 25, 2021, the Company announced a significant milestone on Conda’s mine life extension with the publication of the Draft EIS for H1/NDR. |
Source:
p. 44,16
The Property is controlled solely by Itafos through its 100% subsidiaries, Itafos Conda LLC (Itafos Conda) and Paris Hills Agricom, Inc. (PHA). Itafos’ subsidiaries control surface and mineral rights on the Property through leases from private landowners and on public lands from the State of Idaho and U.S. Federal government.
Itafos Conda LLC operates and is developing the nearby Husky 1 (H1) Project and North Dry Ridge (NDR) Project.
Contractors
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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/ ........

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.
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 be hauled by existing rail to the existing Conda Plant in Soda Springs. Overburden would be ripped or blasted, excavated, and hauled to a temporary or permanent OSA or back fill 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.
NDR would be mined in 3 phases over approximately 3 years. Overburden would be placed in the existing North Maybe Mine pit, then into the NDR pit as room is available. Backfilled overburden would be compacted to reduce settlement and restrict air and water mov ........

Source:

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Flow Sheet:
Summary:

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Projected Production:
Commodity | Units | Avg. Annual | LOM |
Phosphorus
|
k tons
| 548 | 5,976 |
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 * |
* According to 2019 study.
Reserves at December 31, 2020:
Category | Tonnage | Commodity | Grade | Contained Metal |
Measured & Indicated
|
34 Mt
|
P2O5
|
24.9 %
|
8.5 Mt
|
Inferred
|
0.5 Mt
|
P2O5
|
24.7 %
|
0.1 Mt
|
Commodity Production Costs:
| Commodity | Units | Average |
Total cash costs
|
P2O5
|
USD
|
...... &nbs
|
Assumed price
|
P2O5
|
USD
|
...... &nbs
|
* According to 2019 study / presentation.
Operating Costs:
| Units | 2019 |
OP mining costs ($/ton milled)
|
USD
| 39 * |
* According to 2019 study.
2019 Study Costs and Valuation Metrics :
Metrics | Units | LOM Total |
Closure costs
|
$M USD
|
......
|
Total CapEx
|
$M USD
|
......
|
OP OpEx
|
$M USD
|
......
|
Pre-tax IRR, %
|
|
......
|
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