Resouro Strategic Metals and Rare Earth Technologies Sign MOU for Rare Earth Element Extraction and Processing Collaboration
Resouro Strategic Metals | Press release (November 11, 2025) | v2 Page 1 of 4
TSX-V News Release ASX News Release
12 November 2025 13 November 2025
Resouro Strategic Metals and Rare Earth Technologies
Sign MOU for Rare Earth Element Extraction and
Processing Collaboration
Resouro Strategic Metals Inc. (ASX: RAU; TSX-V: RSM; FSE: 8TX; OTCQB: RSGOF)
(“Resouro” or the “Company”) is pleased to announce that it has executed a non-binding
Memorandum of Understanding (“MOU”) with Cincinnati, Ohio-based Rare Earth
Technologies Inc. (“RETI”). Under the terms of the MOU, Resouro and RETI will
collaborate on Rare Earth Element (“REE”) extraction and separation processing for ore
from Resouro’s Tiros Titanium and Rare Earths Project (the “Project”) located in the Tiros
Municipality, Minas Gerais State, Brazil.
“We’re delighted to partner with RETI to test rare earth samples from our Tiros Project,”
said Chris Eager, CEO of Resouro. “If this initial test work is successful, the RETI team
could become a key strategic partner in separating rare earths. This could be a major
stepping stone on the road to making our planned Campos Altos Critical Metals Park a
secure supplier of rare earths to global markets.”
“At RETI, we believe we’ve cracked the code when it comes to taking on the technical,
economic, scale and environmental challenges of refining and separating critical rare earth
elements,” said Steve Levin, President of RETI. “This partnership will give us the
opportunity to test our proprietary results on a project scale and potentially offer a new,
clean separation technology to the rare earths market.”
Resouro and RETI will work together to pursue a phased approach to scale midstream
processing of Total Rare Earth Oxides (“TREO”) from Resouro’s feedstock, as follows:
Phase I – Initial test-work
Resouro will supply RETI with pilot scale samples of the Project’s near-surface high-grade
ore composite (~9,100 ppm TREO and ~23% TiO₂1). RETI will carry out its proprietary
extraction process on Resouro’s feedstock (at RETI’s cost), with Resouro covering the
sample delivery to RETI’s Cincinnati facility.
1 Refer the “About Resouro” section of this announcement for details of the Company’s latest Mineral Resource
Estimate for the Tiros Project.
Resouro Strategic Metals | Press release (November 11, 2025) | v2 Page 2 of 4
Phase II – Midstream feasibility study
Subject to successful initial test-work, the data may be incorporated by Resouro into its
Preliminary Feasibility Study (PFS) at its discretion, following completion of the Company’s
Preliminary Economic Assessment (PEA) which is underway. The parties may thereafter
sign a Definitive MOU to set out all terms and conditions for a broader midstream processing
partnership, including the possibility of forming a joint venture to develop a mixed rare earths
separation facility, initially at RETI’s site, and eventually at the Campos Altos Critical Metals
Park, under development by Resouro and its partners.
Phase III – Full-scale midstream processing plant construction
If the midstream feasibility results support commercial viability of RETI’s technology for the
Project’s feedstock, Resouro and RETI thereafter may form a joint venture entity to construct
full-scale processing facilities (preferably at Campos Altos) for production of high-purity
REE and planned future expansion.
This announcement has been authorized for release by Resouro’s Board of Directors.
Contact Information, Resouro:
Chris Eager,
CEO and Executive Chairman
+44 7388 0579809
About Resouro
Resouro is a Canadian incorporated mineral exploration and development company, listed on
the ASX, TSXV, OTC and FSE, focused on the discovery and advancement of economic
mineral projects in Brazil, including the Tiros Titanium-Rare Earths Project and the Novo
Mundo Gold Project. The Tiros project has 28 mineral concessions totalling 497 km2 located in
the state of Minas Gerais, one of the best infrastructurally developed states of Brazil, 350 km
from the state capital of Belo Horizonte. Resouro's Mineral Resource Estimate for the Tiros
Project contains 165 million tonnes of titanium dioxide and 5.5 million tonnes of total rare
earths oxides within a Measured and Indicated Resource of 1.4 billion tonnes.
Resouro Strategic Metals | Press release (November 11, 2025) | v2 Page 3 of 4
Note: Further details of the Company’s JORC MRE are contained within the Company’s ASX announcement of 9
April, 2025/TSX-V 8 April 2025. Resouro is not aware of any new information or data that materially affects the
information included in the Company’s announcement and that all material assumptions and technical parameters
underpinning the estimates referred to therein continue to apply and have not materially changed.
Competent Person Statement
The information in this announcement that relates to Mineral Resources, Preliminary Economic
Assessment and Metallurgical Test Work is based on, and fairly represents, information
compiled and approved by Mr. Rodrigo Mello, a Competent Person who is a Fell ow of The
Australian Institute of Mining and Metallurgy (FAusIMM 209332). Mr Mello is a consultant
for Resouro Strategic Metals Inc. and has sufficient experience that is relevant to the style of
mineralisation and the type of deposit under consideration and to the activity being undertaken
to qualify him a a Competent Person as defined in the 2012 Edition of the “Australian Code
for Reporting of Exploration Results, Mineral Resources and Ore Reserves ”. Mr. Mello has a
financial interest in the Project, both as the owner of a minority stake (10% free carried interest)
and as a minority shareholder of Resouro. Mr. Mello consents to the inclusion of this
information in this announcement of the matters bas ed on his information in the form and
context in which it appears.
Contact Information, Rare Earth Technologies:
Chuck Joffe,
Chief Commercial Officer
+1 (513) 278-3740
About Rare Earth Technologies, Inc.
Rare Earth Technologies Inc. (RETI), headquartered in Cincinnati, Ohio, was founded in
2021 to solve the critical challenges of rare earth element (REE) extraction and separation,
typically referred to as midstream processing. RETI has pioneered new disruptive rare earth
processing capabilities that provide highly scalable, environmentally friendly and cost-
effective operations. RETI’s closed-loop processes eliminate toxic and flammable solvents,
significantly reduce energy consumption, lower capital and operating costs, and address
pressing national security and sustainability challenges.
Category Million Tonne TiO2 % TREO (ppm) MREO (ppm)
REO/TREO rat
Measured
30
24
9,300
2,500
27%
Indicated
74
23
8,900
2,300
26%
M + I 103 23 9,100 2,400
26%
Inferred
33
22
8,300
2,200
26%
Measured
340
11
3,700
1,000
28%
Indicated
930
11
3,600
1,000
28%
M + I 1,300 11 3,600 1,000
28%
Inferred
470
11
3,400
920
27%
Measured
367
12
4,100
1,100
28%
Indicated
1,000
12
4,000
1,100
27%
M + I 1,400 12 4,000 1,100
28%
Inferred
500
12
3,700
1,000
27%
Resouro Strategic Metals | Press release (November 11, 2025) | v2 Page 4 of 4
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