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United States
Reno Creek Project

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 Location:
17 km SW from Wright, Wyoming, United States

  Project Contacts:
500 North Shoreline Ste. 800N
Corpus Christi
Texas, United States
78401
Phone  ...  Subscription required
Fax(361) 888-5041
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StagePermitting
Mine TypeIn-Situ
Commodities
  • Uranium
Mining Method
  • Solution mining
Processing
  • Resin adsorption
  • Elution
  • In-Situ Recovery (ISR)
  • Ion Exchange (IX)
Mine Life12 years (as of Jan 1, 2014)
Pre-Feasibility Study Underway. Production permits in place.

In 2019 Received a modified Permit to Construct in 2019, allowing a move forward with construction of the CPP and ISR wellfields.
Latest NewsUranium Energy Corp Files Inaugural Regulation S-K 1300 Technical Report Summary Disclosing Resources for Its Reno Creek, Wyoming, Project     February 9, 2022


Owners

Source: p. 54
CompanyInterestOwnership
Uranium Energy Corp. 100 % Indirect
AUC LLC (operator) 100 % Direct
Reno Creek Holdings Inc. 100 % Indirect
AUC LLC is a wholly owned subsidiary of Uranium Energy Corp. (through Reno Creek Holdings Inc.) and the operator of the project.

As of August 9, 2017, Reno Creek Holdings Inc. operates as a subsidiary of Uranium Energy Corp.

Deposit Type

  • Sediment-hosted


Summary:

In the Pumpkin Buttes Uranium District, which includes the Reno Creek, Moore, Bing, and Pine Tree deposits, important economic uranium deposits occur in medium to coarse-grained greywacke sand facies in the lower portion of the Eocene Wasatch Formation. The sandstone host rock is composed of poorly sorted, angular grains of quartz, feldspar and rock fragments ranging in size from 0.063 to 2.0 millimeters. Found between these grains is a finer-grained matrix or interstitial material consisting of silt, clay and some organic material. When mineralized, very fine-grained particles of uranium minerals occur scattered throughout the interstitial matrix. As described in Section 13, the permeability in the mineralized sandstone generally is above 1 Darcy (1000 md) across the project area. The uranium mineralization occurs along roll front trends formed at geochemical reduction-oxidation (redox) boundaries within the host sandstone aquifers. Roll front uranium minerals in the unoxidized zone are commonly coffinite and pitchblende (a variety of uraninite). Low concentrations of vanadium (less than 100 ppm) are sometimes associated with the uranium deposits.

Uranium deposits accumulated along roll-fronts at the down-gradient terminations of oxidation tongues within the host sandstones. The deposits occur within sandstones, which are intermittently interbedded with lenses of siltstone and claystone, commonly referred to as mudstones at the project due to the mixture of particle sizes. The thickness of the mineralization is controlled by the thickness of the sandstone host containing the solution front.

Uranium deposits are generally found within sand units ranging from 50 feet to 200 feet in thickness, and at depths ranging from 170 feet to 450 feet below ground surface. Uranium intercepts are variable in thickness ranging from 1 foot to 30 feet thick. Thin low-grade residual upper and lower limbs of the roll fronts are found in the less permeable zones at the top and bottom of oxidized sand units bounded by unoxidized mudstones.

While in solution, uranium is readily transported and remains mobile as long as the oxidizing potential of the groundwater is not depleted. When the dissolved uranium encounters a reducing environment, it is precipitated and deposited at the interface between the oxidizing and reducing environments known as the redox or alteration front.

Oxidation or alteration of the PZA sandstone in the Reno Creek area was produced by the downgradient movement of oxidizing, uranium bearing groundwater solutions. Uranium mineralization was precipitated by reducing agents and carbonaceous materials in the gray, reduced sands. The host sandstones, where altered, exhibit hematitic (pink, light red, brownish-red, orange-red) and limonitic (yellow, yellowish-orange, yellowish-brown, reddish-orange) alteration colors, which are easily distinguished from the unaltered medium bluish gray sands. Feldspar alteration, which gives a “bleached” appearance to the sands from the chemical alteration of feldspars into clay minerals, is also present. Limonitic alteration dominates near the “nose” of the roll fronts. The remote barren interior portions of the altered sands are usually pinkish-red in color.


Mining Methods

  • Solution mining


Summary:

AUC plans to mine the uranium using the ISR method. For purposes of operations, the North and Southwest Reno Creek Resource Units will be unitized into a single operation called the Reno Creek Resource Unit. Mining of the reserves will occur in the Reno Creek Unit and the Moore and Bing Units.

The basic requirement for ISR mining is that mineralization is located in water-saturated permeable sandstone bodies that allow effective confinement of mining solutions, typically confined between impermeable clay-rich strata.

Wellfields are the groups of wells, installed and completed in the mineralized zones that are sized to effectively target delineated ore and reach the desired production goals. One header house controls the operation of each wellfield. The ore zones are located within the geologic sandstone units where the leaching solutions are injected and recovered via wells in an ISR wellfield and it is bounded between aquitards.

The proposed uranium ISR process will involve the dissolution of the water-soluble uranium compound from the mineralized host sands at near neutral pH ranges. The lixiviant contains oxygen and sodium bicarbonate. The oxygen oxidizes the uranium, which is then complexed with the bicarbonate. The uranium-rich solution (typically ranging from 20 ppm to 250 ppm, but may be higher or lower) will be pumped from the recovery wells to the nearby processing facility for uranium concentration with ion Production Unit Boundaries were designated based on deposit locations and configuration of mineralization. Small and isolated blocks of measured and indicated resources were excluded from the proposed mine plan.

Mineral reserve head grade is projected to average approximately 45 ppm over the entire production schedule. Initial head grades in new wellfields can be several hundred ppm, while head grades from nearly mined out wellfields may be 10-20 ppm. As pregnant lixiviant is gathered from individual wellfields it is co mingled with solutions from other operating wellfields to make up an average head grade of about 45 ppm. Since there is a peak followed by a successive depletion in the amount of uranium extracted from the formation from a given wellfield, careful planning of mixing schemes from high yield wellfields and lower yield wellfields is required to maintain the head grade for the operation.


Crushing and Grinding


Processing

  • Resin adsorption
  • Elution
  • In-Situ Recovery (ISR)
  • Ion Exchange (IX)

Source: Subscription required

Summary:

AUC plans to recover uranium from the lixiviant using the ion exchange (IX) process. This same method is typically and successfully used with the ISR method elsewhere in the United States and especially in Wyoming.

The proposed CPP will have four major process circuits: the uranium recovery/extraction circuit (IX); the elution circuit to remove the uranium from the IX resin; a yellowcake precipitation circuit; and the dewatering, drying and packaging circuit.

The systems within the CPP have been designed to recycle and reuse most of the solutions inside each circuit. A low-volume bleed (approximately one percent of flow) is permanently removed from the groundwater-based leaching solution to ensure a constant inward flow gradient to the PUs and ensure that the leaching solution in the target mineralized zone is contained by the inward movement of groundwater within the designated recovery area. This bleed solution will be routed to RO treatment, and the permeate ........

Recoveries & Grades:

CommodityParameterAvg. LOM
Uranium (U3O8) Recovery Rate, % 74.3
Uranium (U3O8) Head Grade, g/t 45

Projected Production:

CommodityUnitsLOM
Uranium (U3O8) k lbs 14,942
All production numbers are expressed as yellow cake.

Operational Metrics:

Metrics
Annual production capacity 1.5 M lbs of uranium yellow cake *
* According to 2014 study.

Reserves at December 31, 2018:

CategoryTonnage CommodityGradeContained 
Commodity
Measured 14.99 M tons Uranium (U3O8) 0.0433 % 12.92 M lbs
Indicated 16.98 M tons Uranium (U3O8) 0.039 % 13.07 M lbs
Measured & Indicated 32 M tons Uranium (U3O8) 0.041 % 26 M lbs
Inferred 1.92 M tons Uranium (U3O8) 0.039 % 1.49 M lbs

Commodity Production Costs:

CommodityUnitsAverage
Cash costs Uranium (U3O8) USD 11.8 / lb *
All-in sustaining costs (AISC) Uranium (U3O8) USD 33.9 / lb *
Assumed price Uranium (U3O8) USD 65 / lb *
* According to 2014 study / presentation.

2014 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
Well Field OpEx $M USD  ......  Subscription required
Processing OpEx $M USD 81.9
G&A costs $M USD 24.6
Total OpEx $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
Net revenue (LOM) $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
After-tax NPV @ 10% $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.

Proposed Heavy Mobile Equipment as of May 9, 2014:
HME TypeQuantity
Backhoe ....................... Subscription required
....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameEmailRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required Jul 26, 2021
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
Corporate Presentation 2018
Form 10-K 2018
Technical Report 2018
Corporate Presentation 2017
Form 10-K 2017
Technical Report 2016
Pre-Feasibility Study Report 2014
Subscription required - Subscription is required.

News:

NewsDate
Uranium Energy Corp Files Inaugural Regulation S-K 1300 Technical Report Summary Disclosing Resources for Its Reno Creek, Wyoming, Project February 9, 2022
Uranium Energy Corp Announces New and Consolidated NI 43-101 Mineral Resources at the Reno Creek ISR Project, Wyoming January 15, 2019

Aerial view:

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