Saturday, September 26, 2026
MiningNewsTerminal
Saturday, September 26, 2026 Admin

EFR.TO ·

Energy Fuels Announces Chemical Assay Results Confirming More High-Grade Uranium & Copper Mineralization at the Canyon Mine; Share Sales to Satisfy Tax Withholding Requirements

Drill Results

1

Energy Fuels Announces Chemical Assay Results Confirming More High-Grade

Uranium & Copper Mineralization at the Canyon Mine; Share Sales to Satisfy

Tax Withholding Requirements

Lakewood, Colorado – February 2, 2017

Energy Fuels Inc. (NYSE MKT: UUUU; TSX: EFR) (“Energy Fuels” or the “Company”), a leading producer of

uranium in the United States , is pleased to p rovide the following update o n the underground drill

program currently occurring at the Company’s Canyon Mine, which is a high-grade uranium mine being

developed by the Company in northern Arizona . The Company is continuing to discover large and high -

grade areas of uranium mineralization, which the Company expects will result in a larger recoverable

uranium resource than what is currently described in the existing technical report for the Canyon Mine,

prepared in accordance with National Instrument NI 43 -101, Standards for Disclosure for Mineral

Projects (“NI 43 -101”). The Company is also continuing to discover additional zones of high -grade

copper mineralization , both inside and outside the areas of potentially recoverable uranium

mineralization.

As has been previously reported, the Company has completed all surface development and is currently

sinking the production shaft at the Canyon Mine. The shaft is nearing completion, as it is currently sunk

to a depth of approximately 1,400 -feet (out of a total planned depth of 1,470 -feet). From th e shaft,

which is being sunk adjacent to the vertically aligned “breccia pipe”, the Company is conducting

underground drilling to more accurately define and delineate the deposit. As core holes are completed,

the Company first conducts a gamma analysis of the drill holes to estimate uranium content. Then , the

core material is sent to the Company’s laboratory at the White Mesa Mill for chemical assay.

The Company’s October 27, 2016 news release provided chemical assay data, including estimated

uranium, co pper and other mineral content, for core that had been drilled up until that date . The

Company’s August 18, 2016 and December 28, 2016 news releases provided gamma results , including

only estimated uranium content, for holes that had been drilled up until those respective dates . This

news release provides additional chemical assay data for core that has been analyzed since the October

27, 2016 news release. S ome of the uranium data described belo w is a confirmation of previously

reported gamma results. All of the copper data is new.

The results discussed in this news release were drilled from the first level (1,000-foot depth) and second

level (1,230-foot depth) of the mine. The below table summarizes the eleven best uranium intercepts as

determined by chemical assay of the core, in addition to the copper data for each:

2

Hole No.

Intercept

Length

(feet)

Uranium

Avg. Grade

(% U3O8)

Uranium GT

(Grade x Thickness)

Copper

Avg. Grade

(% Cu)

11 6.0 16.99%* 102.0 1.20%

7 46.0 1.37%* 62.9 13.52%

14 4.0 8.35% 33.4 1.64%

6 44.0 0.74%* 32.6 10.22%

16 58.0 0.51%* 29.5 5.57%

11 18.0 1.23% 22.2 7.74%

12 12.0 1.78%* 21.3 3.81%

14 20.0 0.93%* 18.5 9.30%

25 28.0 0.61% 17.1 10.08%

26 24.0 0.56% 13.4 18.17%

13 12.0 0.95%* 11.4 6.83%

* This intercept overlaps with previously reported gamma results.

Below are four additional high-grade copper intercepts that had lower uranium grades:

Hole No.

Intercept Length

(feet)

Copper

Avg. Grade

(% Cu)

Uranium

Avg. Grade

(% U3O8)

12 8.0 26.20% 0.16%

15 8.0 25.74% 0.02%

27 32.0 11.54% 0.29%

4 7.0 9.95% 0.01%

The information presented represents the assay results from 110 samples that were taken from split NQ size core ranging from 2

to 4-feet in length. The intercepts were constructed using a nominal cutoff grade of 0.30% U 3O8 or 4.00% Cu . In general, the

breccia pipe mineralized zone where the samples were collected is orientated vertically, varies in diameter from 140 to 190 f eet,

begins approximately 1,200-feet below the surface, and is open at depth. The holes described in the table above were drilled

from the 1,000 and 1,230 foot levels of the mine to depths below surface ranging between 1,221 - and 1,618- feet, azimuths

ranging between 180 - and 250 -degrees, and dips ranging between - 20 and - 78-degrees. Assay analysis was performed at

Energy Fuels’ White Mesa Mill Laboratory (“WMM”) near Blanding, Utah. U3O8 is analyzed us ing spectrophotometry, and

copper is analyzed using IC P-OES. A QA/QC program has been implemented for the Canyon c ore drilling campaign. The QA/QC

program includes: fine duplicates (2 per 100 samples are split and both samples are analyzed by the WMM lab and compared);

coarse duplicates (2 per 100 samples are split and both samples are analyzed by the WMM lab and compared); standards and

blanks (8 per 100 samples are certified standards or blanks and the WMM lab results are compared to the certified values, and 3

different sample standards and 2 different sample blanks are used in the program); and 3 rd party laboratory analysis (a split of 4

per 100 samples are sent to Inter -Mountain Labs, Inc. (IML) in Sheridan, Wyoming for independent uranium and copper testing;

the IML results are then compared to the WMM lab results; to date 5 IML results have been received and confirmed to be

consistent with WMM lab results, and 28 are in process).

The new results described above appear to be continuing to expand the z ones of high -grade uranium

mineralization. These results are also confirming the Company’s belief that the uranium resource is

larger than what is reported in the existing technical report . The Company is also continuing to

intercept very high -grade copp er mineralization, indicating that copper appears to occur extensively

throughout the deposit. The copper has the potential to improve the economics of this already low-cost

uranium mine.

3

Stephen P. Antony, President and CEO of Energy Fuels stated : “ Core drilling at the Canyon Mine

continues to produce exciting and, in some cases, unexpected results for both uranium and copper. This

is certainly a fascinating deposit that appears to be full of valuable metals in multiple zones. This is

particularly excit ing, as uranium prices are showing recent strength. Kazakhstan, the World’s largest

producer of uranium, recently announced 10% production cuts. In December 2016 , the State of Illinois

passed legislation to save three nuclear reactors previously slated for premature shutdown , and the

Institute of Energy Economics, a Japanese energy think -tank, issued a report that estimated 14 reactors

will have restarted in Japan by March 31, 2018. We are also optimistic we may see other positive

developments in the nu clear energy and uranium industries under the new Trump Administration. We

look forward to releasing future drill results from the Canyon Mine as we produce them , and we plan to

issue a new technical report describing the resources in 2017.”

Certain Upcoming Sales of Shares by Insiders for Tax Withholdings

The Company also announces that members of the board of directors and senior management team of

the Company (“Insiders”) have reported sales of shares for the purpose of covering required tax

withholding obligations in connection with the vesting of previously issued restricted stock units

(“RSUs”). As an integral part of the Company’s long -term equity incentive program , and in order to

reduce cash compensation, the Company issues RSUs from time to time to Insiders and other members

of the Company’s management team . The RSUs typically vest over a three- year period, and entitle the

holders thereof to receive one common share of the Company for each vested RSU. The value of the

shares at the time they are issued on vesting is treated as ordinary income in the hands of the holder ,

and the Company is required to make the required tax withholdings and remit those withholdings to the

applicable taxation authorities. As part of this RSU program, a sufficient n umber of common shares of

the Company issued on the vesting of RSUs are sold on the open market and the proceeds are provided

to the Company to satisfy these withholding requirements. Certain of the Company’s RSUs vested on

January 27 and 28, 2017, and as a result, a portion of the common shares issued on vesting were sold

during the period January 30, 2017 through February 1, 2017, to fully satisfy th ese withholding

requirements. Sales of such shares by Insiders have been reported to the appropriate securities

authorities.

About Energy Fuels: Energy Fuels is a leading integrated US -based uranium mining company, supplying U 3O8 to

major nuclear utilities. Energy Fuels holds three of America’s key uranium production centers, the White Mesa Mill

in Utah, the Nichols Ranch Processing Facility in Wyoming, and the Alta Mesa Project in Texas . The White Mesa

Mill is the only conventional uranium mill operating in the U.S. today and has a licensed capacity of over 8 million

pounds of U3O8 per year. The Nicho ls Ranch Processing Facility is an ISR production center with a licensed capacity

of 2 million pounds of U 3O8 per year. Alta Mesa is an ISR production center currently on care and maintenance .

Energy Fuels also has the largest NI 43 -101 compliant uranium resource portfolio in the U.S. among producers, and

uranium mining projects located in a number of Western U.S. states, including one producing ISR project, mines on

standby, and mineral properties in various stages of permitting and development. The Company also produces

vanadium as a co -product of its uranium production form certain of its mines on the Colorado Plateau, as market

conditions warrant. The Company’s common shares are listed on the NYSE MKT under the trading symbol “UUUU”,

and on the Toronto Stock Exchange under the trading symbol “EFR”.

Stephen P. Antony, P.E., President & CEO of Energy Fuels , is a Qualified Person as defined by Canadian National

Instrument 43 -101 and has reviewed and approved the technical disclosure contained in this news release,

including sampling, analytical, and test data underlying such disclosure.

Cautionary Note Regarding Forward -Looking Statements: Certain information contained in this news release,

including any information relating to : the Company being a leading producer of uranium in the U.S. ; the drilling

4

results to date and any conclusions which may be drawn therefrom; the expected final depth of the shaft; the

potential that the mineralization and/or tonnage may be expanded beyond what is described in the existing NI 43-

101 technical report; any expectation that copper recovery may be economically feasible; any potential

improvement that any copper recovery may have on the economics of the mine; the mine being a low-cost uranium

mine; the expected future drilling activities; the factors which the Company believes makes the Canyon deposit

unique; any expectation that uranium prices are showing recent strength and related recent events; any

expectations regarding other positive developments in the nuclear energy and uranium industries under the new

Trump Administration; the expected timing for issuing a new technical report under NI 43 -101; and any other

statements regarding Energy Fuels’ future expectations, beliefs, goals or prospects; constitute forward -looking

information within the meaning of applicable securities legislation (collectively, "forward -looking statements"). All

statements in this news release that are not statements of historical fact (including statements containi ng the

words "expects", "does not expect", "plans", "anticipates", "does not anticipate", "believes", "intends", "estimates",

"projects", "potential", "scheduled", "forecast", "budget" and similar expressions) should be considered forward-

looking statement s. All such forward -looking statements are subject to important risk factors and uncertainties,

many of which are beyond Energy Fuels’ ability to control or predict. A number of important factors could cause

actual results or events to differ materially from those indicated or implied by such forward- looking statements,

including without limitation factors relating to : the Company being a leading producer of uranium in the U.S. ; the

drilling results to date and any conclusions which may be drawn therefrom; the expected final depth of the shaft;

the potential that the mineralization and/or tonnage may be expanded beyond what is described in the existing NI

43-101 t echnical report; any expectation that copper recovery may be economically feasible; any potent ial

improvement that any copper recovery may have on the economics of the mine; the mine being a low-cost uranium

mine; the expected future drilling activities; the factors which the Company believes makes the Canyon deposit

unique; any expectation that ur anium prices are showing recent strength and related recent events; any

expectations regarding other positive developments in the nuclear energy and uranium industries under the new

Trump Administration; the expected timing for issuing a new technical repo rt under NI 43 -101; and other risk

factors as described in Energy Fuels’ most recent annual report on Form 10 -K and quarterly financial reports.

Energy Fuels assumes no obligation to update the information in this communication, except as otherwise requir ed

by law. Additional information identifying risks and uncertainties is contained in Energy Fuels’ filings with the

various securities commissions which are available online at www.sec.gov and www.sedar.com. Forward- looking

statements are provided for t he purpose of providing information about the current expectations, beliefs and plans

of the management of Energy Fuels relating to the future. Readers are cautioned that such statements may not be

appropriate for other purposes. Readers are also cautioned not to place undue reliance on these forward -looking

statements, that speak only as of the date hereof.

Energy Fuels Inc.

Curtis Moore – VP – Marketing & Corporate Development

(303) 974-2140 or Toll free: (888) 864-2125

[email protected]

www.energyfuels.com