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The Texas Hub & Spoke ISR Project

Texas Hub and Spoke Production Strategy

  • In November 2022, UEC announces that the Texas Commission on Environmental Quality ("TCEQ") has approved the Company's submission for a renewed and expanded radioactive material license ("RML") for its Hobson Central Processing Plant. UEC's amended RML from the TCEQ increases the Hobson Processing Plant's licensed production capacity to 4 million pounds of U3O8 annually. This distinguishes the plant as having the largest licensed capacity in Texas and the second largest in the United States.
  • The Hobson Plant anchors UEC's hub-and-spoke in-situ recovery ("ISR") production platform in South Texas and will process uranium loaded resin recovered from multiple satellite projects including the Palangana and Burke Hollow ISR projects.
  • In August 2022, Uranium Energy Corp Achieves Milestone with Filing S-K 1300 Technical Report Summary Disclosing Resources for Its South Texas Hub & Spoke ISR Project
  • This latest S-K 1300 report marks an important milestone, reconfirming UEC’s position as America’s leading ISR uranium company with South Texas and Wyoming Hub & Spoke platforms containing 12 satellite projects, 7 of which are fully licensed, and over 71,000,000 lbs of Measured and Indicated resources and 17,000,000 lbs of Inferred resources:
    • Total South Texas Disclosed M&I Resources are 9,126,700 lbs with 4,738,000 tons grading approximately 0.101% U3O
    • Total Disclosed Inferred Resources for South Texas is 9,924,000 lbs with 5,469,000 tons grading approximately 0.120% U3O8
  • The South Texas Hub & Spoke platform is production ready with fully licensed ISR projects
  • S-K 1300 was adopted by the Securities and Exchange Commission (“SEC”) to modernize mineral property disclosure requirements for mining registrants and to align U.S. disclosure requirements more closely for mineral properties with current industry and global regulatory standards
  • The mineral resource estimates set forth in this TRS have not previously been reported under the S-K 1300 format
  • The Project geology is considered amenable to low-cost, environmentally friendly ISR mining methods
  • The TRS was prepared under S-K 1300 and was filed on August 11, 2022, with the SEC through EDGAR on Form 8-K and is also available on SEDAR as a “Material Document” filed on August 11, 2022.   The TRS was prepared on behalf of the Company by Western Water Consultants, Inc. d/b/a WWC Engineering, of Sheridan, Wyoming.

S-K 1300 Technical Report Summary - August 2022

About the Texas Hub & Spoke Project

The Project consists of five Project areas (“Figure 1-1”): Hobson Central Processing Plant (“CPP”), Burke Hollow, Goliad, Palangana and Salvo; and is located in Karnes, Bee, Goliad and Duval Counties, Texas. 

The Hobson CPP will serve as the ‘hub’ of the Project, with the other Project areas serving as satellite facilities, or the ‘spokes’. The Hobson CPP will process all the mineral mined on each of the other Project areas. The Project is in the South Texas Uranium Province (“STUP”), which is part of the South Texas coastal plain portion of the Gulf of Mexico Basin (“GMB”).

Mineral rights for the Project are all private (fee) mineral leases. Fee mineral leases are obtained through negotiation with individual mineral owners.

The Project resides in the GMB. The GMB extends over much of South Texas and includes the Texas coastal plain and STUP where the Project is located. The coastal plain is bounded by the Rocky Mountain uplift to the west and drains into the Gulf of Mexico. The coastal plain is comprised of marine, non-marine and continental sediments ranging in age from Paleozoic through Cenozoic.

Texas Hub and Spoke Production Strategy

Uranium mineralization at the Project is typical of Texas roll-front sandstone deposits. The formation of roll-front deposits is largely a groundwater process that occurs when uranium-rich, oxygenated groundwater interacts with a reducing environment in the subsurface and precipitates uranium. The most favorable host rocks for roll-fronts are permeable sandstones with large aquifer systems. Interbedded mudstone, claystone and siltstone are often present and aid in the formation process by focusing groundwater flux.

To date, UEC holds data from 5,232 drill holes that have been completed by UEC and previous uranium exploration companies on and nearby the five Project areas held by UEC. Data from the drilling, including survey coordinates, collar elevations, depths and grade of uranium intercepts, have been incorporated into UEC’s database.

Recent developments and operations include all work that has been done to develop and operate the Project properties since the last technical reports were written to update the resources and development at each Project area.

Summary capital and operating cost estimates are not included with this TRS, since UEC is reporting the results of an Initial Assessment (“IA”) without economic analysis. No new construction/development has occurred at the Hobson CPP or at Salvo since the 2010-2012 drilling campaign. However, UEC initiated drilling projects on Palangana, Goliad and Burke Hollow in 2010-2015, 2014 and 2019-2021, respectively. UEC also activated several wellfields at Palangana to produce uranium from 2010 to 2016.


From 2010 to 2015, UEC drilled 891 drill holes at Palangana. Most of the drilling occurred in 2010 (391 holes), 2011 (281 holes) and 2012 (186 holes) and the remaining holes were drilled from 2013-2015. The majority of these wells were drilled for delineation purposes and the rest were drilled for monitor and production wells. In 2010, UEC activated wellfields in Production Area (“PA”) PA-1, PA-2 and PA-3 at Palangana. From 2010 to 2016, 563,600 lbs of uranium were produced by ISR methods.


In 2014, UEC conducted a drilling program at Goliad for exploration and water wells. 35 holes were drilled and logged for exploration and water supply purposes with a majority of the holes being drilled in PA- 1 and PA-2.

Burke Hollow

The Burke Hollow project is the newest and largest ISR wellfield being developed in the U.S.

In November 2022, UEC announces that baseline sampling at its Burke Hollow project's first production area is complete, and that the production area pump test has been conducted successfully. Baseline sampling of all production area monitor wells and a production area pump test are important steps in finalizing the authorization for production within the already approved Mine Permit area. Due to the success of these endeavors, UEC is now one step closer to initiating production at Burke Hollow and is also now preparing for the second production area delineation drilling.

From 2021 to 2022, UEC conducted another drilling program to upgrade a portion of their resources from inferred to measured and indicated, to better define the ore body in proposed PA-1 and to install monitor wells. 168 delineation and exploration holes were drilled as of March 7, 2022. 24 of these holes were also used as monitor wells. This drilling program is ongoing for the purpose of completing more monitor wells.

297 new holes were drilled and logged in 2021 and 2022 to complete this estimate. No historic data was used in this estimate which includes only data from drilling projects conducted by UEC from 2012 to 2022.

In 2019, UEC completed 129 drill holes, mostly focusing on delineating the Lower B1 and Lower B2 sands in the proposed PA-1. In addition, UEC began installing perimeter monitor wells in PA-1. In total, 57 holes were drilled solely for delineation and exploration purposes and 72 holes were drilled for monitoring purposes.

This IA for the Project has been prepared in accordance with the regulations set forth in S-K 1300 with the objective of disclosing the mineral resources at the Project.

Based on the density of drilling, continuity of geology and mineralization, testing and data verification, the mineral resource estimates meet the criteria for indicated or inferred mineral resources as summarized herein.

The in-place resources were estimated separately for each Project area. The Project contains a measured resource of 2.78 million lbs and an indicated resource of 6.34 million lbs of U3O8 in-place. The Project contains 9.92 million lbs of inferred mineral resources in-place. Tables 1 and 2 below list the Project resources by the Project area.  Mineral resources are not mineral reserves and do not have demonstrated economic viability. However, considerations of reasonable prospects for eventual economic extraction were applied to the mineral resource calculations herein.

Table 1:   Texas Hub and Spoke Project Measured and Indicated Resource Summary

Mineral Resource GT
Average Grade
(% eU
Ore Tons
Burke Hollow
Measured 0.30 0.082 70 114,700
Indicated 0.30 0.087 1,337 2,209,000
Total Measured and Indicated 0.30 0.086 1,407 2,323,700
Measured 0.20 0.053 1,595 2,667,900
Indicated 0.20 0.102 1,504 3,492,000
Total Measured and Indicated 0.20 0.085 3,099 6,159,900
Measured - - - -
Indicated None 0.134 232 643,100
Total Measured and Indicated None 0.134 232 643,100
All mineral resources at Salvo are classified as Inferred.
Project Totals
Measured 2,782,600
Indicated 6,344,100
Total Measured and Indicated 9,126,700


  1. Pounds reported with Disequilibrium Factor (DEF) applied.
  2. Measured and indicated mineral resources as defined in 17 CFR § 229.1300.
  3. All reported resources occur below the static water table.
  4. The point of reference for mineral resources is in-situ at the Project.
  5. Mineral resources are not mineral reserves and do not have demonstrated economic viability.
  6. Delineation drilling conducted at Palangana after 2010 was not incorporated into this resource estimate, as in the experience of the QP this type of drilling does not generally substantially change the resource estimates.

Table 2:  Texas Hub and Spoke Project Inferred Resource Summary

Mineral Resource GT Cutoff Average Grade (% eU3O8) Ore Tons (000s) eU3O8 (lbs)
Burke Hollow
Inferred 0.30 0.095 2,494 4,859,000
Inferred 0.20 0.195 1,548 1,224,800
PA-1 and PA-2 Inferred None 0.100 96 192,500
Dome, NE Garcia, SW Garcia, CC Brine, Jemison Fence, Jemison East Inferred 0.10 0.110 - 0.300 206 808,800
Inferred 0.30 0.091 1,125 2,839,000
Project Totals
Total Inferred 5,469 9,924,100


  1. Pounds reported with DEF applied.
  2. A range of grades is presented for the Palangana inferred mineral because the resource estimation methods differed between PA-1/PA-2 and the rest of the trends. There was no cutoff for PA-1 and PA-2 block models. See Section 11.1 of the TRS for a more detailed explanation.
  3. Inferred mineral resources as defined in 17 CFR § 229.1300.
  4. All reported resources occur below the static water table.
  5. The point of reference for mineral resources is in-situ at the Project.
  6. Mineral resources are not mineral reserves and do not have demonstrated economic viability.
  7. Delineation drilling conducted at Palangana after 2010 was not incorporated into this resource estimate, as in the experience of the QP this type of drilling does not generally substantially change the resource estimates.

The technical information in this news release has been reviewed by WWC Engineering, a consultant to the Company, and by Clyde L. Yancey, P.G., Vice President-Exploration for the Company, being a qualified third party firm and a Qualified Person under Item 1302 of Regulation S-K.

Texas Careers

UEC is an active energy resource company seeking to fill multiple full-time positions for our uranium project in Beeville, Texas. UEC is an equal opportunity employer, offering competitive salaries and a robust benefit package; including paid medical insurance, paid dental insurance, vision, generous PTO, various paid holidays, and 401(k) Plan with Company match.

Position Location Description
Well Logger Trainee Beeville  
Accounts Payable Clerk & Admin Assistant Corpus Christi  

To apply for any of the above positions, send your resume and qualifications to: Human Resources: [email protected] or by fax to 361-888-5041.