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Casper, WY 82604 Ur-Energy Reports Second Quarter 2026 Results Full Operations at Shirley Basin Positions Ur-Energy as the Largest U.S. ISR Uranium Producer

Financials

PRESS RELEASE

1478 Willer Drive

Casper, WY 82604

Ur-Energy Reports Second Quarter 2026 Results

Full Operations at Shirley Basin Positions Ur-Energy as the Largest U.S. ISR Uranium Producer

Casper, Wyoming, August 10, 2026 – Ur-Energy Inc. (NYSE American:URG) (TSX:URE) (“ Ur-Energy” or the “ Company”),

America’s largest and fastest-growing domestic ISR uranium producer, is pleased to announce its financial and operating

results, along with development and exploration highlights, for the second quarter ended June 30, 2026.

Financial and Operating Highlights

 New Record for Pounds Drummed: Processed and packaged 140,873 pounds of U₃O₈ during the quarter, an increase

of 47.4% over the first quarter of 2026 and 25.7% over the second quarter of 2025, and the most drummed in a

calendar quarter since the start of ramp up at Lost Creek in 2022.

 Continued Increase of Pounds Shipped: Shipped 149,747 pounds of U₃O₈ to the conversion facility during the second

quarter, an increase of 44.0% over the first quarter of 2026 and 42.2% over the second quarter of 2025.

 Delivered on Contracted Sales: Sales for the second quarter under contracted deliveries totaled 215,000 pounds of

U₃O₈ as projected, generating $14.4 million in product sales revenue.

 Continued Low-Cost Production: The cash cost per pound of U₃O₈ sold during the quarter remained low at $40.20,

compared to $37.51 for the first quarter of 2026 and $42.83 for the second quarter of 2025.

 Strong Liquidity: Unrestricted cash and cash equivalents totaled $95.3 million at June 30, 2026.

 Ending Inventory: Ended the second quarter with 348,292 pounds of finished inventory at the conversion facility,

which was a 16.5% decrease from the first quarter of 2026 and 10.4% more than the second quarter of 2025.

Matt Gili, President & CEO of Ur-Energy, stated, “ The second quarter of 2026 marked an inflection point for Ur-Energy.

The continued ramp up at Lost Creek and the commencement of production at Shirley Basin has transformed us into both

the largest and the fastest-growing ISR producer of uranium in the United States. We continue to expand our production,

our operating costs remain among the lowest in the country, and our organic growth pipeline is advancing at pace.”

Development and Exploration Highlights

 Final Regulatory Approval at Shirley Basin: In late June 2026, the Company received final state regulatory

authorization to commence full production operations at Shirley Basin, including the transportation of uranium-

loaded resin to Lost Creek for processing and shipping.

 Shirley Basin Ready to Commence Full Operations: All plant infrastructure and processes are in place at Shirley Basin

to transport uranium-loaded resin to Lost Creek and launch full production operations only two and a half years after

the build out decision. The first shipment is expected imminently.

 Production Optimization at Lost Creek: Continued to increase flow rates and further increase production, adding

header houses, installing a sand filtration system and breaking ground on the planned wastewater treatment facility

in July, and advancing initiatives to optimize wellfield chemistry.

 Rapid Progress on Near-Mine Exploration: Completed test well clusters and began baseline environmental studies

at Lost Soldier in anticipation of potential permitting as a satellite mine feeding Lost Creek. Also commenced planning

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and preparations for a 120-hole exploration drilling program at Lost Creek South – a highly prospective, under

explored approximately 16-square mile property immediately adjacent to the Lost Creek operation.

Summary of Selected Second Quarter Results

Q2 2025 Q1 2026 Q2 2026 % Variance Q2 2026 to

Q2 20255 Q1 20265

Pounds Captured 128,970 110,314 105,016 -18.6% -4.8%

Pounds Drummed 112,033 95,599 140,873 25.7% 47.4%

Pounds Shipped 105,316 103,956 149,747 42.2% 44.0%

Pounds Sold 165,000 55,000 215,000 30.3% 290.9%

Pounds in Inventory2 315,607 417,231 348,292 10.4% -16.5%

Average Sales Price $63.20 $70.98 $66.85 5.8% -5.8%

Cash Cost Per Pound Sold3 $42.83 $37.51 $40.20 -6.1% 7.2%

Cash ($millions)4 $57.6 $122.8 $95.3 65.5% -22.4%

1. All sales were under long-term contracts.

2. Pounds in inventory at the conversion facility.

3. Includes ad valorem and severance taxes but excludes non-cash costs.

4. Unrestricted cash position at the end of the quarter.

5. Percentages may not recalculate precisely due to rounding.

Lost Creek Production Growth and Continued Optimization

At Lost Creek, Ur-Energy’s flagship uranium ISR mining project, the Company drummed 140,873 pounds of U₃O₈, an

increase of 47.4% over the first quarter of 2026 and 25.7% over the second quarter of 2025. The Company also shipped

149,747 pounds during this time, an increase of 44.0% over the first quarter of 2026 and 42.2% over the second quarter

of 2025.

Wellfield development and surface construction remain on schedule for the Company’s 2026 operating plans. Subject to

regulatory approval, the Company expects to commence wellfield construction and installation in the fifth mine unit by

year-end 2026, where 15 header houses are planned from late 2026 through 2028. At quarter-end, 17 drill rigs were

actively supporting the Lost Creek drilling program – an increase of two from the previous quarter.

A sand filtration system was installed at Lost Creek during the quarter and brought online in July to increase flow rates

while the new wastewater treatment facility is completed. Development of the wastewater treatment facility accelerated

during the quarter, and the Company broke ground in July 2026. Completion and operation are planned for the first

quarter of 2027. Additionally, the Company expects to complete implementation of an enhanced maintenance program

and improvements to the reverse osmosis system by year-end 2026.

Shirley Basin Ready for Full Production Operations

In April 2026, the Company commenced limited initial operations to extract and capture uranium at Shirley Basin. While

the project is permitted as a second production and processing hub operation to maximize future optionality in the

emerging Great Divide Basin uranium district, Shirley Basin is designed as a spoke of the Lost Creek hub to optimize capital

efficiency.

While conducting only limited operations, the Company succeeded in capturing 10,634 pounds of U₃O₈ at the Shirley Basin

plant during the second quarter of 2026. In late June 2026, the Company received final authorization from the State of

Wyoming to commence full production operations, including the transportation of extracted and captured uranium to

Lost Creek. By the end of July 2026, all plant infrastructure and processes for transportation were in place. As of the date

of this release, the Company was preparing a trailer for the first shipment to Lost Creek to transition Shirley Basin to full

production operations.

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Various additional plant construction activities are expected to continue through 2026 as the Company continues to

deliver on its optimization strategy.

Exploration Activities in the Great Divide Basin

Lost Creek South : Totaling approximately 16-square miles immediately adjacent to the Lost Creek operation, Lost Creek

South has clear potential as a low-cost, near-mine expansion opportunity. During the second quarter, the Company carried

out planning and preparation activities for a 120-hole exploration program that is expected to commence in the third

quarter of 2026 with three drill rigs.

Lost Soldier: With approximately 4,000 historic drill holes and related data indicating mineralization, and close proximity

to the Company’s Lost Creek operation, Lost Soldier has superb potential as a satellite operation. During the second

quarter of 2026, the Company completed pump testing of two of the three aquifer test well clusters and began work on

baseline environmental studies in anticipation of possible permitting. Additionally, completion of a technical report

including a resource estimate for the project is expected by year-end 2026.

North Hadsell: The Company drilled 33 holes totaling approximately 33,800 feet in the first quarter of 2026, with 13 holes

hitting mineralization that closely resembles that of Lost Creek. During the second quarter, the Company advanced the

opportunity by completing abandonment of the previously drilled holes.

Sales and Inventory

During the second quarter, the Company sold 215,000 pounds of U₃O₈ at an average price of $66.85 per pound, generating

$14.4 million in product sales revenue. A total of 348,292 pounds of finished inventory was held at the conversion facility

at quarter-end, compared to 417,231 pounds at the end of the first quarter of 2026 and 315,607 pounds at the end of the

second quarter of 2025.

Including the 270,000 pounds delivered in the first half of 2026, the Company expects to make base deliveries of 1.0

million pounds of U₃O₈ in 2026. After the end of the quarter, the Company proactively entered into transactions to defer

delivery of 150,000 pounds to 2027 and 150,000 pounds to 2029. The deferral transactions increase the Company’s ability

to make subsequent 2026 deliveries from existing inventory and new production. A larger number of expected 2026

deliveries were scheduled in the latter part of the year to coincide with the ramp-up and startup schedules for Lost Creek

and Shirley Basin.

U3O8 Product Profit (Loss)

The following table provides information on the Company’s U 3O8 product profit and loss:

Unit 2025 Q3 2025 Q4 2026 Q1 2026 Q2 2026 YTD

U3O8 Product Sales

Produced $000 — 10,428 3,904 10,692 14,596

Non-produced $000 6,323 — — 3,681 3,681

$000 6,323 10,428 3,904 14,373 18,277

U3O8 Product Costs

Produced $000 — 8,968 2,687 8,738 11,425

Non-produced $000 7,065 — — 3,587 3,587

$000 7,065 8,968 2,687 12,325 15,012

U3O8 Product Profit (Loss)

Produced $000 — 1,460 1,217 1,955 3,172

Non-produced $000 (742) — — 94 94

$000 (742) 1,460 1,217 2,049 3,266

U3O8 Pounds Sold

Produced lb — 165,000 55,000 165,000 220,000

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Non-produced lb 110,000 — — 50,000 50,000

lb 110,000 165,000 55,000 215,000 270,000

U3O8 Price per Pound Sold

Produced $/lb — 63.20 70.98 64.80 66.35

Non-produced $/lb 57.48 — — 73.62 73.62

$/lb 57.48 63.20 70.98 66.85 67.69

U3O8 Cost per Pound Sold

Ad valorem and severance taxes $/lb — 4.24 3.84 4.44 4.29

Cash costs $/lb — 38.70 33.67 35.76 35.24

Non-cash costs $/lb — 11.41 11.34 12.76 12.40

Produced $/lb — 54.35 48.85 52.96 51.93

Non-produced $/lb 64.23 — — 71.74 71.74

$/lb 64.23 54.35 48.85 57.32 55.60

U3O8 Profit (Loss) per Pound Sold

Cash costs $/lb — 24.50 37.31 29.04 31.11

Less ad valorem and severance taxes $/lb — (4.24) (3.84) (4.44) (4.29)

Less non-cash costs $/lb — (11.41) (11.34) (12.76) (12.40)

Produced $/lb — 8.85 22.13 11.84 14.42

Non-produced $/lb (6.75) — — 1.88 1.88

$/lb (6.75) 8.85 22.13 9.53 12.09

U3O8 Profit (Loss) Margin

Cash costs % — 38.8 52.6 44.8 46.9

Less ad valorem and severance taxes % — (6.7) (5.4) (6.9) (6.5)

Less non-cash costs % — (18.1) (16.0) (19.6) (18.7)

Produced % — 14.0 31.2 18.3 21.7

Non-produced % (11.7) — — 2.6 2.6

% (11.7) 14.0 31.2 14.3 17.9

U3O8 Production and Ending Inventory

The following tables provide information on the Company’s production and ending inventory of U 3O8 pounds:

U3O8 Production Unit 2025 Q3 2025 Q4 2026 Q1 2026 Q2 2026 YTD

Pounds captured lb 89,267 78,177 110,314 105,016 215,330

Pounds drummed in lb 93,523 121,818 95,599 140,873 236,472

Pounds shipped lb 70,190 138,337 103,956 149,747 253,703

Non-produced pounds acquired lb — 100,000 — — —

U3O8 Ending Inventory Unit 2025 Q3 2025 Q4 2026 Q1 2026 Q2

Pounds

In-process inventory lb 29,362 17,203 26,794 12,430

Plant inventory lb 40,817 24,295 15,939 7,066

Conversion inventory - produced lb 138,150 124,591 177,231 158,292

Conversion inventory - non-produced lb 140,000 240,000 240,000 190,000

lb 348,329 406,089 459,964 367,788

Value

In-process inventory $000 630 201 681 43

Plant inventory $000 2,267 1,097 995 373

Conversion inventory - produced $000 7,290 5,776 9,133 8,707

Conversion inventory - non-produced $000 8,992 17,217 17,217 13,484

$000 19,179 24,291 28,026 22,607

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Cost per Pound

In-process inventory $/lb 21.46 11.68 25.42 3.46

Plant inventory $/lb 55.54 45.15 62.43 52.79

Conversion inventory:

Ad valorem and severance tax $/lb 3.29 3.89 3.95 4.79

Cash cost $/lb 39.71 31.89 35.52 35.69

Non-cash cost $/lb 9.77 10.58 12.06 14.53

Conversion inventory - produced $/lb 52.77 46.36 51.53 55.01

Conversion inventory - non-produced $/lb 64.23 71.74 71.74 70.97

$/lb 58.54 63.07 63.15 63.71

Conference Call and Webcast

Management will hold a conference call and audio webcast to discuss the quarterly highlights followed by a question-and-

answer session with participants. The details are as follows:

Date: Tuesday, August 11, 2026

Time: 11:00 a.m. ET (8:00 a.m. PT)

Webcast URL: https://www.webcaster5.com/Webcast/Page/2307/54392

To Join the Conference Call by Phone:

Toll Free: 877-545-0523

International: 973-528-0016

Participant Access Code: 860447

Conference Call Replay:

Toll Free: 877-481-4010

International: 919-882-2331

Replay Passcode: 54392

About Ur-Energy

Ur-Energy is the largest and fastest-growing ISR uranium mining company in the United States. It owns and operates the

Lost Creek ISR uranium facility in south-central Wyoming, which has produced more than 3.5 million pounds of U₃O₈ since

operations began, and the Shirley Basin ISR operation in central Wyoming, where uranium recovery commenced in April

2026. Lost Creek and Shirley Basin have combined annual licensed production and toll-processing capacity of 4.2 million

pounds of U₃O₈. The Company is also engaged in exploration and development activities at a selection of highly

prospective projects in the Great Divide Basin uranium district. Ur-Energy’s common shares trade on the NYSE American

under the symbol “URG” and on the Toronto Stock Exchange under the symbol “URE.” The Company’s corporate

headquarters is in Casper, Wyoming, and its registered office is in Ottawa, Ontario.

Contact Ur-Energy Investor Relations at:

Richard Matthews

Phone: +1 (604) 355-7179

Email: [email protected]

Financial Statements and Non-GAAP Measures

This press release should be read in conjunction with Ur-Energy’s Quarterly Report on Form 10-Q for the three and six

months ended June 30, 2026, including the unaudited consolidated financial statements and associated Management’s

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Discussion and Analysis of Financial Condition and Results of Operation included therein, which is available on the

Company’s website at www.ur-energy.com and under the Company’s issuer profile on EDGAR at www.sec.gov and

SEDAR+ at www.sedarplus.ca.

The press release includes measures specific to U₃O₈ sales, product cost, product profit, pounds sold, price per pound

sold, cost per pound sold, and product profit per pound sold. These measures do not have standardized meanings within

U.S. GAAP or a defined basis of calculation. These measures are used by management to assess business performance and

determine production and pricing strategies. They may also be used by certain investors to evaluate performance. The

use of these performance measures is intended to provide additional information and should not be considered in

isolation or as a substitute for measures of performance prepared in accordance with U.S. GAAP. The Company’s

definitions of these measures may differ from other mining companies, and therefore may not be comparable. These non-

GAAP measures should be read in conjunction with the Company’s consolidated financial statements for applicable

periods.

Cautionary Statement Regarding Forward-Looking Information

This release may contain “forward-looking statements” within the meaning of applicable securities laws regarding events

or conditions that may occur in the future ( e.g., the Company’s ability and the expected or planned timing at Lost Creek

to continue to ramp up and increase production operations, optimize chemistry, construct the wastewater treatment

facility, and implement maintenance improvements and other initiatives to increase production; whether the Company’s

efforts, including the installation of sand filtration, to mitigate fine particles from the wellfield and increase flow rates at

Lost Creek will be successful; the Company’s ability and the expected or planned timing at Shirley Basin to begin

transporting uranium to Lost Creek, ramp up and increase production, bring additional production columns online,

complete remaining construction and commissioning, and install wastewater treatment equipment; the Company’s ability

to efficiently process, dry, and drum Shirley Basin production at Lost Creek and execute the Shirley Basin satellite model;

the Company’s ability and the expected or planned timing at both Lost Creek and Shirley Basin to execute drilling plans,

install and bring additional header houses online, receive regulatory approvals for additional mine units, and move into,

commence wellfield construction in, and successfully produce in additional mine units; the Company’s ability and the

expected or planned timing at Lost Soldier to complete aquifer testing, baseline environmental studies, or a new technical

report; whether for any of the Company’s exploration programs, including Lost Soldier, North Hadsell, and LC South, the

drilling programs will continue, further work will support preliminary interpretations, the resource potential will be

adequate for ISR mining, the Company will commence or complete permitting, or the projects will be scalable or allow the

Company to leverage existing infrastructure or operating expertise; whether the Company’s production and inventory will

be sufficient for it to meet its commitments to sell and deliver production or to meet its sales projections; whether the

Company’s cash resources will be sufficient for its capital requirements and operating costs without additional financing;

and whether the Company’s revenue, sales prices, or production costs will increase or decrease) and are based on current

expectations that, while considered reasonable by management at this time, inherently involve a number of significant

business, economic, and competitive risks, uncertainties, and contingencies. Generally, forward-looking statements can

be identified by use of forward-looking terminology such as “plans,” “expects,” “does not expect,” “is expected,” “is likely,”

“estimates,” “intends,” “anticipates,” “does not anticipate,” “believes,” or variations of the foregoing, or statements that

certain actions, events or results “may,” “could,” “might” or “will” “be taken,” “occur,” “be achieved” or “have the

potential to.” All statements, other than statements of historical fact, are considered to be forward-looking statements.

Forward-looking statements involve known and unknown risks, uncertainties, and other factors which may cause actual

results, performance, or achievements of the Company to be materially different from any future results, performance,

or achievements expressed or implied by the forward-looking statements. Factors that could cause actual results to differ

materially from forward-looking statements include, but are not limited to, capital and other costs varying significantly

from estimates; failure to establish estimated resources and reserves; the grade and recovery of ore that is mined varying

from estimates; production rates, methods, and amounts varying from estimates; delays in obtaining or failures to obtain

required governmental, environmental, or other project approvals; inflation; changes in exchange rates; fluctuations in

commodity prices; delays in development; changes in governmental polices or market conditions; and other factors

described in the public filings of the Company that are available at www.sec.gov and www.sedarplus.ca. Readers should

not place undue reliance on forward-looking statements. The forward-looking statements contained herein are based on

the beliefs, expectations, and opinions of management as of the date hereof, and Ur-Energy disclaims any intent or

obligation to update them or revise them to reflect any change in circumstances or changes in management’s beliefs,

expectations, or opinions that occur in the future, except as required by applicable law.