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RSM.V ·

News release

Drill Results

Resouro Strategic Metals Inc.

BC0430203 (Canada) ARBN 671 716 457 (Australia)

Suite 250, 997 Seymour Street, V ancouver, British Columbia, Canada V6B 3M1 – Tel: +1 403 807 2948

Level 10, Kyle House, 27-31 Macquarie Place, Sydney NSW 2000 – Tel: + 61 407 123 143

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ASX: RAU

TSXV: RSM

OTCQB: RSGOF

TSXV Release ASX Release

13 August 2025 14 August 2025

Tiros Northern Block Assays Results up to

22.4% TiO2 and 13,074 ppm TREO

Resouro Strategic Metals Inc. (ASX: RAU; TSX-V: RSM; OTCQB: RSGOF; FSE: 8TX) ("Resouro" or

the "Company") is pleased to announce the remaining assay results from the auger drill hole

program undertaken at the Northern Block of the Tiros Titanium and Rare Earth Elements (“REE”)

Project in Minas Gerais, Brazil (“Tiros Project” or “Tiros” or “Project”).

Highlights

• 5 m at 22.4% titanium dioxide (“TiO2”) and 7,146 ppm Total Rare Earth Oxides (“TREO”)

from 2 m in FT-48;

• 3 m at 12.3% TiO2 and 13,074 ppm TREO from surface in FT-53; and

• 4 m at 23,9% TiO2 and 7,427 ppm TREO from 8 m in FT-63.

The eighteen auger drill holes in this release complement results from previous auger drill holes

FT-26 to FT-47, announced in April 2025 1, which confirmed the presence of a high-grade, near-

surface zone within the Tiros Northern Block.

• 16 of the 18 auger holes intercepted significant mineralization.

• Assays identified mineralization down to a maximum auger depth of 15 meters.

• Despite the excellent results at the Tiros Northern Block, the current focus remains on the

Tiros Central Block, where metallurgical test work and engineering studies are underway

to support the development of a d emonstration plant (refer ASX announcement of 12

August, 2025 / TSXV 11 Augus t, 2025). The Company’s focus reflects the logistical and

infrastructure advantages of the Tiros Central Block.

1 For full exploration results including relevan t JORC table information, refer to the Company’s ASX announcement

of 22 April, 2025 / TSXV 21 April, 2025.

Resouro Strategic Metals Inc.

BC0430203 (Canada) ARBN 671 716 457 (Australia)

Suite 250, 997 Seymour Street, V ancouver, British Columbia, Canada V6B 3M1 – Tel: +1 403 807 2948

Level 10, Kyle House, 27-31 Macquarie Place, Sydney NSW 2000 – Tel: + 61 407 123 143

2 | P a g e

NEXT STEPS

With auger drilling now complete at the Tiros Northern Block, the Company remains focused on

advancing metallurgical programs currently in progress at CIT-Senai and SGS Laboratories in

Brazil and Canada.

ASSAY RESULTS

All assay intervals (Refer Table 1) are determined using cut-off grades of 1,000 ppm for TREO and

6% for TiO2 while the high -grade zone is defined using a cut -off grade of 6,000 ppm for TREO

and/or 16% for TiO2.

These results from the Northern Permit area of the Tiros Northern Block confirm the continuity of

high-grade mineralisation, which is either exposed at surface or covered by a thin layer of

overburden.

All intervals are interpreted as representing the true thickness of the mineralization. The orebody

is horizontal and all holes are vertical.

Table 1: Significant Assay intervals from Auger Holes, Tiros North.

Hole_ID From To Thickness TiO2 % NdPr ppm TREO ppm

FT-47 8.00 15.00 7.00 11.28 447 3,747

includes 14.00 15.00 1.00 16.02 1,295 8,489

FT-48 0.00 15.00 15.00 15.19 1,259 5,663

includes 2.00 7.00 5.00 22.41 1,325 7,146

FT-49 0.00 11.50 11.50 15.44 682 4,400

includes 2.00 6.00 4.00 21.61 819 5,567

FT-50 9.00 13.00 4.00 12.90 932 5,075

includes 10.00 12.00 2.00 18.50 1,420 7,633

FT-51 0.00 10.00 10.00 18.31 981 6,574

includes 2.00 7.00 5.00 23.82 1,205 8,857

FT-53 0.00 6.00 6.00 11.28 3,737 8,310

includes 0.00 3.00 3.00 12.34 6,159 13,074

FT-55 0.00 8.00 8.00 9.55 356 2,310

FT-56 5.00 9.00 4.00 8.24 189 1,696

FT-57 0.00 5.00 5.00 7.91 272 1,794

FT-58 0.00 4.00 4.00 8.37 320 2,131

FT-59 0.00 3.00 3.00 12.58 549 2,796

FT-60 0.00 6.00 6.00 14.76 853 5,358

FT-61 0.00 10.50 10.50 16.01 1,170 6,934

includes 4.00 10.50 6.50 19.68 1,586 9,277

FT-62 0.00 11.00 11.00 11.18 1,441 4,729

FT-63 0.00 12.00 12.00 18.16 1,028 5,440

includes 8.00 12.00 4.00 23.89 1,458 7,427

FT-64 7.00 12.00 5.00 17.21 788 5,350

includes 9.00 12.00 3.00 21.67 1,020 6,880

Resouro Strategic Metals Inc.

BC0430203 (Canada) ARBN 671 716 457 (Australia)

Suite 250, 997 Seymour Street, V ancouver, British Columbia, Canada V6B 3M1 – Tel: +1 403 807 2948

Level 10, Kyle House, 27-31 Macquarie Place, Sydney NSW 2000 – Tel: + 61 407 123 143

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The Tiros Northen Block, Figure 1, is a plateau, where the Capacete Formation is preserved. Auger

holes were located along the rim of the plateau, in zones where there is no or little overburden.

Figure 1: Map of the drilling grid at the Tiros Northern Block.

The geological map of the Capacete formation, Figure 2, demonstrates the relationship between

mineralization and overburden.

Resouro Strategic Metals Inc.

BC0430203 (Canada) ARBN 671 716 457 (Australia)

Suite 250, 997 Seymour Street, V ancouver, British Columbia, Canada V6B 3M1 – Tel: +1 403 807 2948

Level 10, Kyle House, 27-31 Macquarie Place, Sydney NSW 2000 – Tel: + 61 407 123 143

4 | P a g e

Figure 2: Geological Map at the Tiros Northern Block

The photo below shows the region where the high -grade zone crops out. The top of the plateau,

visible in the background, is covered by overburden over the Capacete Formation, with a thickness

of approximately 20 to 25 meters. In contrast, the valleys in th e foreground expose the

mineralization without any overburden, making them a favourable location to initiate a mining

operation.

Photo 1: View to south, from the north of the Tiros Northern block.

Resouro Strategic Metals Inc.

BC0430203 (Canada) ARBN 671 716 457 (Australia)

Suite 250, 997 Seymour Street, V ancouver, British Columbia, Canada V6B 3M1 – Tel: +1 403 807 2948

Level 10, Kyle House, 27-31 Macquarie Place, Sydney NSW 2000 – Tel: + 61 407 123 143

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Christopher Eager, Executive Chairman and CEO commented:

“Resouro is pleased to report additional high -grade drill intercepts near surface at the Tiros

Northern Block. The Northern Block is over 18 km to the north of the Tiros Central Block that hosts

the 1.4 billion tonnes NI 43 -101 Measured and Indicated Resource at a grade of 12% TiO2 and

4,000 ppm TREO as reported by Resouro in April 20252. These results provide further evidence of

the remarkable continuity and size potential of the global exploration target at Tiros.”

This announcement has been authorized for release by the Board of Directors.

Contact Information:

Chris Eager

Executive Chair (Santiago)

[email protected]

+44 7388 0579809

Emily Evans, SPOKE

Media and Content Manager

[email protected]

+61 401 337 959

About the Company

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 km 2 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 R esource Estimate for the

Tiros Project contains 165 million tonnes of titanium dioxide and 5.5 million tonne s of total rare earths oxides

within a Measured and Indicated Resource of 1.4 billion tonnes at TiO2 and 4,000 ppm TREO.

2 For full details of the Company’s Mineral Resource Estimate including relevant JORC table information and

information in accordance with NI 43-101, refer to the Company’s ASX announcement of 22 April, 2025 / TSXV 21

April, 2025 (JORC) and ASX announcement of 23 May, 2025 / TSXV 22 May, 2025 (NI 43-101).

Resouro Strategic Metals Inc.

BC0430203 (Canada) ARBN 671 716 457 (Australia)

Suite 250, 997 Seymour Street, V ancouver, British Columbia, Canada V6B 3M1 – Tel: +1 403 807 2948

Level 10, Kyle House, 27-31 Macquarie Place, Sydney NSW 2000 – Tel: + 61 407 123 143

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a

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.

Resouro Strategic Metals Inc., capital structure

ASX Chess Depositary Interests 47,883,723

TSXV Common Stock 44,706,326

Total on Issue 92,590,049

Options issued under the Company Plan 12,495,000

Options issued to Brokers 1,843,643

Warrants issued to Brokers 600,616

Performance Rights 750,000

Fully Diluted Securities 108,279,308

Competent Person Statement

The information in this report related to drilling at Tiros is based on information compiled by Mr Rodrigo Mello, a Competent

Person who is a Fellow of the Australasian Institute of Mining and Metallurgy (FAusIMM 209332] and who approves the technical

and scientific content of this release. Mr Mello is a consultant for Resouro Strategic Metals Inc. and has sufficient experience that

is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify him

as Competent Person as d efined in the 2012 Edition of the ‘Australasian 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 minori ty stake (10% free

carried interest) and as a minor shareholder of Resouro.

Forward-Looking Information

This news release contains certain "forward -looking information" within the meaning of applicable securities law.

Forward-looking information is frequently characterized by words such as "plan", "expect", "project", "intend",

"believe", "anticipate", "estimate" and other similar words, or statements that certain events or conditions "may" or

DOMAIN Category Million Tonne TiO2 % TREO (ppm) MREO (ppm)MREO/TREO ratio

HG (High Grade) 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%

MG (Medium Grade) 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%

TOTAL (HG+MG) 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 Inc.

BC0430203 (Canada) ARBN 671 716 457 (Australia)

Suite 250, 997 Seymour Street, V ancouver, British Columbia, Canada V6B 3M1 – Tel: +1 403 807 2948

Level 10, Kyle House, 27-31 Macquarie Place, Sydney NSW 2000 – Tel: + 61 407 123 143

7 | P a g e

"will" occur. Although we believe that the expectations reflected in the forward -looking information are reasonable,

there can be no assurance that such expectations will prove to be correct. We cannot guarantee future results,

performance or achievements. Consequently, there is no representation that the actual results achieved will be the

same, in whole or in part, as those set out in the forward-looking information.

Forward-looking information is based on the opinions and estimates of management at the date the statements are

made and are subject to a variety of risks and uncertainties and other factors that could cause actual events or results

to differ materially from those anticipated in the forward-looking information. Some of the risks and other factors that

could cause the results to differ materially from those expressed in the forward -looking information include, but are

not limited to: general economic conditi ons in Canada and globally; industry conditions, including governmental

regulation and environmental regulation; failure to obtain industry partner and other third party consents and

approvals, if and when required; the need to obtain required approvals fr om regulatory authorities; stock market

volatility; liabilities inherent in the mining industry; competition for, among other things, skilled personnel and

supplies; incorrect assessments of the value of acquisitions; geological, technical, processing and transportation

problems; changes in tax laws and incentive programs; failure to realize the anticipated benefits of acquisitions and

dispositions; and the other factors. Readers are cautioned that this list of risk factors should not be construed as

exhaustive.

The forward-looking information contained in this news release is expressly qualified by this cautionary statement. We

undertake no duty to update any of the forward -looking information to conform such information to actual results or

to changes in our expectations except as otherwise required by applicable securities legislation. Readers are cautioned

not to place undue reliance on forward-looking information.

Neither the ASX, OTC, TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the

policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Resouro Strategic Metals Inc.

BC0430203 (Canada) ARBN 671 716 457 (Australia)

Suite 250, 997 Seymour Street, V ancouver, British Columbia, Canada V6B 3M1 – Tel: +1 403 807 2948

Level 10, Kyle House, 27-31 Macquarie Place, Sydney NSW 2000 – Tel: + 61 407 123 143

8 | P a g e

Appendix 1: Drill Collar Locations

Hole

ID

X Y Z EOH

FT-47 406459 7914809 1008 15.0

FT-48 406231 7914714 993 15.0

FT-49 406144 7914493 993 11.5

FT-50 405341 7913977 937 13.0

FT-51 405821 7913776 963 10.5

FT-52 406387 7913254 991 14.0

FT-53 406273 7913237 961 6.5

FT-54 404520 7914324 904 8.5

FT-55 406429 7912266 968 8.8

FT-56 406617 7912871 970 10.5

FT-57 406346 7912319 961 7.0

FT-58 406263 7913887 957 4.0

FT-59 406506 7913565 964 3.0

FT-60 406540 7913580 973 7.0

FT-61 407893 7915216 995 10.5

FT-62 406650 7912549 981 11.0

FT-63 407787 7915079 996 12.0

FT-64 404419 7913156 956 12.0