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United States
Pinyon Plain Project

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 Location:
10 km S from Tusayan, Arizona, United States

  Project Contacts:
225 Union Blvd., Suite 600
Lakewood
Colorado, United States
80228
Phone  ...  Subscription required
Fax303-974-2141
EmailEmail
WebsiteWeb
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Overview

StageConstruction
Mine TypeUnderground
Commodities
  • Uranium
  • Copper
Mining Method
  • Longhole stoping
  • Shrinkage stoping
Mine Life2.3 years (as of Jan 1, 2022)
The Pinyon Plain Project (the name of the Canyon Mine was changed to the Pinyon Plain Mine in 2020.) is a fully-permitted uranium project with all surface facilities and a shaft in place.

At the Energy Fuels Pinyon Plain Project, standby, mine preparedness, mine development and environmental compliance activities continued during 2022, including activities to replace the Company’s existing General Permits with an Individual Permit, which was issued on April 28, 2022.

The Company decided in early 2022 to resume construction work at the Pinyon Plain mine.

The timing of the Company’s plans to extract and process mineralized materials from the Pinyon Plain Project will be based on current contract requirements, inventory levels, sustained improvements in general market conditions, procurement of suitable sales contracts and/or the expansion of the U.S. Uranium Reserve Program.


Owners

Source: p. 18
CompanyInterestOwnership
Energy Fuels Inc. 100 % Indirect
All of Energy Fuels Inc. the Arizona Strip uranium properties including the Pinyon Plain Project are held by the Company’s subsidiary EFR Arizona Strip LLC.

Contractors

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Deposit Type

  • Breccia pipe / Stockwork


Summary:

Mineralization
Mineralization at the Project extends vertically approximately 1,700 ft, both inside and outside the pipe, but high grade uranium and copper mineralization is found primarily in the collapsed portions of the Coconino, Hermit, and Esplanade horizons and at the margins of the pipe in fracture zones. Sulfide zones are found scattered throughout the pipe but are especially concentrated (within a sulfide cap) near the Toroweap-Coconino contact, where the cap averages 20 ft thick and consists of pyrite and bravoite, an iron-nickel sulfide. The ore assemblage consists of uranium-pyrite-hematite with massive copper sulfide mineralization common in and near the high grade zone. The strongest mineralization appears to occur in the lower Hermit-upper Esplanade horizons in an annular fracture zone.

The metal of interest at the Project is uranium, though significant copper mineralization co-exists in the breccia pipe. As the rocks making up the breccia within the pipe are all sedimentary rocks, mineralization typically occurs within the matrix material (primarily sand) surrounding the larger breccia clasts.

Uranium Mineralization
Uranium mineralization at the Project is concentrated in three stratigraphic levels or zones (Upper/Cap, Main, and Juniper) within a collapse structure ranging from 80 ft to 230 ft wide with a vertical extension from a depth of 650 ft to over 2,100 ft, resulting in approximately 1,450 ft of mineralization. Minerali ........


Mining Methods

  • Longhole stoping
  • Shrinkage stoping


Summary:

The mine is an underground, vertical shaft access mine which is planned to be mined using small scale mechanized rubber tired equipment. Energy Fuels and its predecessors have mined numerous uranium bearing breccia pipes by underground methods dating back to the 1980s. Because mineralization can be found in fractures which range from a single fracture to intersections of many, forming large zones, several mining methods will be employed based on the size and geometry of the mineralization.

Ore will be mined by a combination of longhole stoping and shrinkage mining to suit the irregular nature of the deposit. Ore will be hoisted to surface, stored in a surface ore stockpile, and then transported by highway trucks to a processing facility. The shaft is 1,470 ft deep with mine production planned over a 150 ft vertical interval, from 1,223 ft below surface (approximately the 1-4 level of the shaft) to 1,376 ft below surface (approximately the 1-5 level of the shaft). A spiral ramp will be driven up from the 1-5 level to connect the planned sublevels and to connect to the shaft at the 1-4 level.

Mineral Reserves are located on the outer side of a roughly cylindrical shape with a diameter of 300 ft and a barren center with a diameter of approximately 50 ft. Mining sublevels are spaced at irregular intervals of 20 ft to 35 ft. An eight foot diameter return air raise, also functioning as an emergency escapeway, will be developed in the barren center of the depos ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Projected Production:

CommodityUnitsLOM
Uranium lbs 1,505,003
All production numbers are expressed as U3O8.

Operational Metrics:

Metrics
Daily mining capacity  ......  Subscription required
Daily mining capacity  ......  Subscription required
Daily milling rate  ......  Subscription required
Annual mining rate  ......  Subscription required
Waste tonnes, LOM  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Total tonnes mined, LOM  ......  Subscription required
Tonnes milled, LOM  ......  Subscription required
* According to 2022 study.
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Reserves at December 31, 2022:
Mineral Reserves are estimated at the breakeven cut-off grade of 0.32% U3O8.

For the Copper Mineral Resources Main and Main-Lower zones of the Pinyon Plain Project, a 0.40% uranium equivalent cut-off grade (% U3O8 Eq) was applied to account for both the copper and uranium mineralization.

Uranium Mineral Resources are based on a $65/lb uranium price at an equivalent uranium cut-off grade 0.30% eU3O8.

CategoryTonnage CommodityGradeContained Metal
Proven 7,800 tons U3O8 0.33 % 50,800 lbs
Probable 126,700 tons U3O8 0.6 % 1,517,000 lbs
Proven & Probable 134,500 tons U3O8 0.58 % 1,567,800 lbs
Measured 6,000 tons Copper 9.6 % 1,155,000 lbs
Indicated 37,000 tons U3O8 0.95 % 703,000 lbs
Indicated 90,000 tons Copper 5.9 % 10,553,000 lbs
Measured & Indicated 96,000 tons Copper 6.1 % 11,708,000 lbs
Inferred 5,000 tons U3O8 0.5 % 48,000 lbs
Inferred 4,000 tons Copper 6.5 % 470,000 lbs

Commodity Production Costs:

CommodityUnitsAverage
Cash costs Uranium (U3O8) USD  ......  Subscription required
All-in sustaining costs (AISC) Uranium (U3O8) USD  ......  Subscription required
All-in costs Uranium (U3O8) USD  ......  Subscription required
Assumed price Uranium (U3O8) USD  ......  Subscription required
Assumed price Copper USD  ......  Subscription required
* According to 2022 study / presentation.
Subscription required - Subscription is required.

Operating Costs:

Units2022
UG mining costs ($/ton milled) USD 91.6 *  
Processing costs ($/ton milled) USD  ......  Subscription required
G&A ($/ton milled) USD  ......  Subscription required
Total operating costs ($/ton milled) USD  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

2022 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Closure costs $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
UG OpEx $M USD  ......  Subscription required
Processing OpEx $M USD 25.8
Freight costs $M USD 0.3
Transportation (haulage) costs $M USD 9.7
G&A costs $M USD 0.9
Total OpEx $M USD  ......  Subscription required
Mining Taxes $M USD  ......  Subscription required
Income Taxes $M USD  ......  Subscription required
Royalty payments $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
Net revenue (LOM) $M USD  ......  Subscription required
Operating margin (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
Pre-tax NPV @ 8% $M USD  ......  Subscription required
After-tax NPV @ 5% $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
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Proposed Heavy Mobile Equipment as of December 31, 2022:
HME TypeModelSizeQuantity
Drill ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 31, 2023
....................... Subscription required ....................... Subscription required Subscription required Dec 31, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 31, 2023
....................... Subscription required ....................... Subscription required Subscription required Aug 31, 2023
Subscription required - Subscription is required.

Staff:

EmployeesTotal WorkforceYear
Subscription required Subscription required 2022

Corporate Filings & Presentations:

DocumentYear
Form 10-K 2022
Pre-Feasibility Study Report 2022
................................... Subscription required 2021
................................... Subscription required 2019
Corporate Presentation 2017
Form 10-K 2017
Technical Report 2017
Form 10-K 2016
Form 10-K 2015
Technical Report 2012
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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