Energy Fuels Successfully Produces First Kilogram of 99.9% Purity Dysprosium Oxide at its White Mesa Mill in Utah; on Track to Commence Terbium Production in Q4 2025 Energy Fuels is planning to install large-scale dysprosium, terbium, and potentially other
Energy Fuels Successfully Produces First Kilogram of 99.9% Purity Dysprosium Oxide
at its White Mesa Mill in Utah; on Track to Commence Terbium Production in Q4 2025
Energy Fuels is planning to install large-scale dysprosium, terbium, and potentially other
“heavy” rare earth oxide production capacity at its White Mesa Mill in Utah by Q4-2026.
Denver, Colorado, August 21, 2025 – Energy Fuels Inc. (NYSE: UUUU; TSX: EFR), a leading
U.S. producer of uranium, rare earths, and critical minerals, is pleased to announce that it
has successfully completed production of its first kilogram of dysprosium (Dy) oxide at pilot
scale at the Company’s White Mesa Mill in Utah . The Company achieved a purity of 99.9%
Dy, which is well in excess of the 99.5% commercial specification. The Mill expects to
continue producing dysprosium oxide at a rate of two (2) kilograms per week . Energy Fuels
believes it is the first U.S. company to both produce high -purity Dy oxide and publicly
disclose actual production volumes and purities . These oxides are being produced from
monazite mined in Florida and Georgia, USA and demonstrate the expected viability of
Energy Fuels’ completely non -Chinese rare earth oxide supply chain. Multiple magnet
manufacturers and OEMs have already expressed their strong interest in obtaining these
samples to accelerate their validation processes.
Energy Fuels believes the quantity and purity of its Dy oxide production is unmatched in the
United States at this time and is a testament to the White Mesa Mill’s world-class rare earth
element (REE) production capabilities. Pilot-scale production is expected to continue until
approximately 15 kilograms of Dy oxide are produced. At that point, Energy Fuels intends to
produce high purity terbium (Tb) oxide and is targeting Q4-2025 for the first samples of Tb
oxide to be available for end-user validation.
Sample of high-purity Dy oxide produced at Energy Fuels’ White Mesa Mill in Blanding, Utah
Due to the ongoing success of this “heavy” REE pilot project, the Company intends to
construct and commission commercial -scale Dy, Tb, and potentially other “heavy” REE
separation capacity at its White Mesa Mill, which could be in production as soon as Q4 2026.
“Energy Fuels’ high purity Dy oxide production is a major leap toward securing a U.S. supply
of ‘heavy’ rare earth oxides for a variety of commercial and defense uses,” said Energy Fuels
CEO Mark S. Chalmers. “ This is real, high-quality material in-hand, ready for independent
testing, demonstrating that our Utah facilities can deliver world-class critical minerals
domestically. Data and knowledge from our pilot plants will guide the design and
construction of commercial Dy, Tb, and potentially other ‘heavy’ rare earth separation
infrastructure that we plan to install in Utah next year.”
Last year, Energy Fuels announced the completion and commissioning of its commercial
scale “light” rare earth oxide circuit at the Mill with a successful run of ‘on-spec’ neodymium-
praseodymium (NdPr) oxide used in permanent magnets for electric mobility, robotics,
drones, wind energy and defense technologies. That material has been tested and qualified
by magnet makers around the world and is expected to be used in EVs and hybrid vehicles
available for sale in the U.S., EU and Asia this year.
These production accomplishments demonstrate the Company’s growing capabilities to
deliver critical minerals to the United States and build upon the Company’s structural
advantages in the U.S. REE space including existing licens es, facilities, knowledge, and
proven commercial capacity at the White Mesa Mill in Utah.
About Energy Fuels
Energy Fuels is a leading U.S.-based critical minerals company, focused on uranium, REEs,
heavy mineral sands, vanadium and medical isotopes. Energy Fuels, which owns and
operates several conventional and in-situ recovery uranium projects in the western United
States, has been the leading U.S. producer of natural uranium concentrate for the past
several years, which is sold to nuclear utilities that process it further for the production of
carbon-free nuclear energy. Energy Fuels also owns the White Mesa Mill in Utah, which is
the only fully licensed and operating conventional uranium processing facility in the United
States. At the Mill, Energy Fuels also produces advanced REE products, vanadium oxide
(when market conditions warrant), and is evaluating the potential recovery of certain
medical isotopes from existing uranium process streams needed for emerging Targeted
Alpha Therapy cancer treatments. Energy Fuels is also developing three (3) additional heavy
mineral sands projects: the Toliara Project in Madagascar; the Bahia Project in Brazil; and
the Donald Project in Australia in which Energy Fuels has the right to earn up to a 49%
interest in a joint venture with Astron Corporation Limited. Energy Fuels is based
in Lakewood, Colorado, near Denver. The primary trading market for Energy Fuels' common
shares is the NYSE American under the trading symbol "UUUU," and its common shares are
also listed on the Toronto Stock Exchange under the trading symbol "EFR." For more
information on all Energy Fuels does, please visit http://www.energyfuels.com
CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS
This news release contains certain "Forward Looking Information" and "Forward Looking
Statements" within the meaning of applicable United States and Canadian securities
legislation, which may include, but are not limited to, statements with respect to: any
expectation that the Company's pilot scale production of heavy REEs will continue to be
successful; any expectation of the purity of any of the REE or heavy REE oxides to be
produced at the Mill; any expectation as to the timing of pilot and/or commercial scale
production of REE or heavy REE oxides at the Mill; any expectation that the Company will
install and commission commercial Dy, Tb, and potentially other “heavy” REE separation
capacity at the White Mesa Mill as soon as late -2026, or at all ; any expectation as to the
viability of Energy Fuels’ completely non -Chinese rare earth oxide supply chain ; any
expectation that Energy Fuels’ high purity Dy oxide production is a major leap toward a
secure U.S. supply of heavy REE oxides; any expectation that the Company’s Utah facilities
can deliver world -class critical minerals, domestically ; any expectation that market
conditions may support rare earth production; any expectation as to the Company's
production capacity or expected timelines to production; any expectation as to estimated
recoverable REE oxides; any expectation that the Company’s development projects will be
placed into production; and any expectation that the Company will be successful at
recovering certain medical isotopes from existing uranium process streams needed for
emerging Targeted Alpha Therapy cancer treatments. Generally, these forward-looking
statements can be identified by the use of forward-looking terminology such as "plans",
"expects," "does not expect," "is expected," "is likely," "budgets," "scheduled," "estimates,"
"forecasts," "intends," "anticipates," "does not anticipate," or "believes," or variations of
such words and phrases, or state that certain actions, events or results "may," "could,"
"would," "might" or "will be taken," "occur," "be achieved" or "have the potential to." All
statements, other than statements of historical fact herein are considered to be forward-
looking statements. Forward-looking statements involve known and unknown risks,
uncertainties and other factors which may cause the actual results, performance or
achievements to be materially different from any future results, performance or
achievements express or implied by the forward-looking statements. Factors that could
cause actual results to differ materially from those anticipated in these forward-looking
statements include risks associated with: commodity prices and price fluctuations;
engineering, construction, processing and mining difficulties, upsets and delays; permitting
and licensing requirements and delays; changes to regulatory requirements; legal
challenges; competition from other producers; government and political actions or
inactions; market factors, including future demand for REEs, titanium and zirconium; and
the other factors described under the caption "Risk Factors" in the Company's most recently
filed Annual Report on Form 10-K, which is available for review on EDGAR
at www.sec.gov/edgar.shtml, on SEDAR at www.sedar.com, and on the Company's website
at www.energyfuels.com. Forward-looking statements contained herein are made as of the
date of this news release, and Energy Fuels disclaims, other than as required by law, any
obligation to update any forward-looking statements whether as a result of new information,
results, future events, circumstances, or if management's estimates or opinions should
change, or otherwise. There can be no assurance that forward-looking statements will prove
to be accurate, as actual results and future events could differ materially from those
anticipated in such statements. Accordingly, the reader is cautioned not to place undue
reliance on forward-looking statements. Energy Fuels assumes no obligation to update the
information in this communication, except as otherwise required by law.
Investor and Media Contact:
Energy Fuels Inc.
Kim Ronkin Casey, Investor Relations Manager
303-389-4165
www.energyfuels.com