Ucore Updates Mineral Resource Estimate and Technical Report for Bokan Dotson-Ridge Rare Earth Property
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Ucore Updates Mineral Resource Estimate and Technical
Report for Bokan Dotson-Ridge Rare Earth Property
Halifax, Nova Scotia – April 14, 2026 – Ucore Rare Metals Inc. (TSXV: UCU) (OTCQX: UURAF)
(“Ucore” or the “Company”) is pleased to announce the completion of an upgraded mineral resource
estimate (“ Resource” or “ Mineral Resource ”) for the Bokan Dotson -Ridge rare earth element
project in Southeast Alaska (“Bokan”), together with the associated Technical Report (the “Technical
Report”). The Technical Report has been prepared in accordance with both National Instrument 43-
101 and SEC Regulation S-K 1300. The effective date of both the mineral resource estimate and the
technical report is April 9, 2026.
A summary of the upgraded mineral resource estimate is as follows:
Measured Mineral Resource Estimate, Assuming TREO cut-off of 0.4%
CLASSIFICATION TONNES LREO
(%)
HREO
(%)
TREO
(%)
Contained
TREO
(TONNES)
Measured 801,600 0.38 0.22 0.60 4,826
Indicated 3,369,800 0.35 0.23 0.58 19,545
Inferred 980,300 0.34 0.22 0.57 5,568
Notes:
1. Total Rare Earth Oxides (TREO) includes: La 2O3, Ce 2O3, Pr 2O3, Nd 2O3, Sm 2O3, Eu 2O3,
Gd2O3, Tb2O3, Dy2O3, Ho2O3, Er2O3, Tm2O3, Yb2O3, Lu2O3, Y2O3
2. Heavy Rare Earth Oxides (HREO) includes: Eu 2O3, Gd 2O3, Tb 2O3, Dy 2O3, Ho 2O3, Er 2O3,
Tm2O3, Yb2O3, Lu2O3, Y2O3
3. The mineral resource estimate was completed by Mr. Jim Robinson, a Senior Consulting
Geologist at Aurora Geosciences (Alaska) Ltd. (“Aurora”). Mr. Robinson is an independent
qualified person for the purposes of NI 43-101 standards of disclosure for mineral projects of
the Canadian Securities Administrators and has reviewed and verified the technical and
scientific content disclosed in this release. A Technical Report with the updated Mineral
Resource estimate will be filed on SEDAR+ within 45 days.
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4. The resource estimate is based on:
• A database of 97 diamond drill holes totaling 20,000 m and 85 surface channels
totaling 280 m. This diamond drilling and channel sampling was completed by
Ucore in 2008, 2009, 2010, 2011, 2014, and 2022 on the Dotson Ridge zone.
• All geochemical analyses were performed by ALS Chemex, Eco-tech
Laboratories Ltd., Bureau Veritas (ACME Analytical), and Activation
Laboratories.
• The specific gravity (“SG”) used is the overall mean of 2.77, determined from 309
SG readings.
• Block model was estimated by the Inverse Distance Squared interpolation
method on blocks of maximum 4 m x 4 m and minimum 1 m x 1 m dimensions.
• All rare earth element (“REE”) assays exceeding the 95% confidence level (“CL”)
were cut to the 95% CL for each element.
• All intercepts with a true width of less than 1.5 m were diluted to a potential mining
width of 1.5 m.
“While the Company’s focus remains squarely on the deployment of RapidSX TM rare earth refining
technology in our Louisiana SMC, the Bokan Dotson-Ridge property remains an important asset as
the United States develops an independent rare earth supply chain, ” said Pat Ryan, Chairman and
CEO of Ucore. “Critical minerals are not just commodities but are strategic national security inputs.
As demand for rare earth elements continues to grow, the importance of this supply chain will only
increase. ”
Rare earth grades by individual light rare earth oxide at the 0.4% cut-off are as follows:
CLASS La2O3
(%)
Ce2O3
(%)
Pr2O3
(%)
Nd2O3
(%)
Sm2O3
(%)
MEASURED 0.07 0.18 0.02 0.086 0.022
INDICATED 0.07 0.16 0.02 0.080 0.021
INFERRED 0.07 0.16 0.02 0.079 0.021
Rare earth grades by individual heavy rare earth oxide at the 0.4% cut-off are as follows:
CLASS Eu2O3
(%)
Gd2O3
(%)
Tb2O3
(%)
Dy2O3
(%)
Ho2O3
(%)
Er2O3
(%)
Tm2O3
(%)
Yb2O3
(%)
Lu2O3
(%)
Y2O3
(%)
MEASURED 0.002 0.022 0.004 0.024 0.005 0.012 0.002 0.009 0.001 0.142
INDICATED 0.002 0.022 0.004 0.025 0.005 0.013 0.002 0.009 0.001 0.149
INFERRED 0.002 0.022 0.004 0.024 0.005 0.013 0.002 0.009 0.001 0.144
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An additional 801,600 tonnes of newly estimated Measured mineralization grading 0.60% of total
rare earths (“TREO”) at a cut-off grade of 0.40% TREO has now been added to the total Resource
at Bokan, which is a result of a surface channel sampling program carried out on the property in the
summer of 2022. After the sampling program was completed, a new deposit model was constructed
and a new mineral resource was calculated.
The Company is additionally pleased to report that Bokan has an anomalous skew towards the more
valuable heavy rare earths (“HREO”) and this appears to be consistent across the entire deposit at
35-40% of the TREO. The Resource remains open both at depth and along strike.
The upgraded Resource has been prepared by Aurora. As a third -party consultant, Aurora was
additionally responsible for the data collection, quality control, modeling, and reporting associated
with the Resource estimate upgrade.
In keeping with the initial mine design set out by Stantec Inc. of Tempe, AZ, (“ Stantec”; released
April 18, 2012), the upgraded Mineral Resource excludes the I&L Zone (previously included in the
initial resource estimate released by the Company March 7, 2011). On the recommendation of
Stantec, I&L mineralization, located outside of the prim ary Dotson Zone of mineralization, will be
examined as part of a prospective Phase II mine expansion program.
The drill-defined Mineral Resource at Bokan Dotson-Ridge commences at surface and is open both
at depth and along strike. Additional information regarding significant drill results from the Company's
prior exploration programs and maps and sections detaili ng the drill -hole locations and individual
REE values are available at: www.ucore.com.
# # #
About Ucore Rare Metals Inc.
Ucore is focused on rare -earth and critical-metal resources, extraction, beneficiation, and separation
technologies with the potential for production, growth, and scalability. Ucore’s vision and plan is to
become a leading advanced technology company, providing best -in-class metal sepa ration products
and services to the mining and mineral extraction industry.
Through strategic partnerships, this plan includes disrupting the People’s Republic of China’s control of
the North American REE supply chain through the near-term development of a heavy and light rare-earth
processing facility in the US State of Louisiana, subsequent SMCs in Canada and Alaska and the longer-
term development of Ucore’s 100% controlled Bokan-Dotson Ridge Rare Heavy REE Project on Prince
of Wales Island in Southeast Alaska, USA (“Bokan”).
Ucore is listed on the TSXV under the trading symbol “UCU” and in the United States on the OTC Markets’
OTCQX® Best Market under the ticker symbol “UURAF.”
For further information, please visit www.ucore.com.
Forward-Looking Statements
This press release includes certain statements that may be deemed “forward -looking statements” . All
statements in this release (other than statements of historical facts) that address future business
development, technological development and/or acquisitio n activities (including any related required
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financings), timelines, events, or developments that the Company is pursuing are forward -looking
statements. Although the Company believes the expectations expressed in such forward -looking
statements are based on reasonable assumptions, such statements ar e not guarantees of future
performance or results, and actual results or developments may differ materially from those in forward-
looking statements.
Regarding the disclosure in the press release above about Ucore’s plan to file a Technical Report on
SEDAR+ within 45 days, the Company has assumed that the Technical Report and the accompanying
certificates and consents required under Part 8 of NI 43-101 will be filed in the short term. For additional
risks and uncertainties regarding the Company, its business activities, its ability to qualify for and receive
any additional funding from any U.S. or Canadian government, the CDF and the aforementioned projects
(generally), see the risk disclosure in the Company’s MD&A for Q4-2025 (filed on SEDAR+ on March 18,
2026) (www.sedarplus.ca) as well as the risks described below.
Regarding the disclosure above in the “About Ucore Rare Metals Inc. ” section, the Company has
assumed that it will be able to procure or retain additional partners and/or suppliers, in addition to
Innovation Metals Corp. (“ IMC”), as suppliers for Ucore’s expected future SMCs. Ucore has also
assumed that sufficient external funding will be found to continue and complete the ongoing research
and development work required at the Kingston CDF and also later prepare a new National Instrument
43-101 technical rep ort that demonstrates that Bokan is feasible and economically viable for the
production of both REE and co -product metals and the then prevailing market prices based upon
assumed customer offtake agreements. Ucore has also assumed that sufficient external funding will be
secured to continue the development of the specific engineering plans for the SMCs and their
construction and eventual commissioning and operations. Factors that could cause actual results to
differ materially from those in forward -looking statements include, without limitation: IMC failing to
protect its intellectual property rights in RapidSX™; RapidSX™ failing to demonstrate commercial viability
in large commercial -scale applications; Ucore not being able to procure additional key partners or
suppliers for the SMCs; Ucore not being able to raise sufficient funds to fund the specific design and
construction of the SMCs and/or the continued development of RapidSX ™; adverse capital -market
conditions; unexpected due -diligence findings; the eme rgence of alternative superior metallurgy and
metal-separation technologies; the inability of Ucore and/or IMC to retain its key staff members; a
change in the legislation in Louisiana or Alaska and/or in the support expressed by the Alaska Industrial
Development and Export Authority (AIDEA) regarding the development of Bokan; the availability and
procurement of any required interim and/or long -term financing that may be required; and general
economic, market or business conditions.
Regarding the mineral resource estimate reported in this news release, there are several risks or factors
which may affect the reported resource. These include but are not limited to:
• changing economic factors such as metal prices , and mining, shipping , fuel, electrical, and
other costs, changes to which could make some or all of the deposit uneconomic to mine,
decreasing the resource, or could cause more of the deposit to become economic to mine,
thereby adding to the resource;
• new knowledge of the deposit geometry and metal distribution derived from further
exploration or mining development;
• changes to the permitting regime, rules, and regulations which could make it more efficient
and cost effective to permit a mine, or make it not feasible to do so;
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• and government, aboriginal, community and NGO issues which could make the deposit more
or less amenable to development and mineral extraction.
Neither the TSXV nor its Regulation Services Provider (as that term is defined by the TSXV) accept
responsibility for the adequacy or accuracy of this release.
CONTACTS
Qualified Person: James Robinson, P .Geo., and independent geologist from Aurora Geosciences
(Alaska) Ltd., has prepared the technical data provided in this news release, is the qualified person
responsible for its accuracy, and may be contacted at 1.902.482.5214.
For additional information, please contact:
Mark MacDonald
Vice President, Investor Relations
Ucore Rare Metals Inc.
1.902.482.5214