ACM.CN · 2025-09-11 12:00:00

Allied Critical Metals Expands Santa Helena Breccia in Borralha with Long Tungsten Intercepts and Confirms High-Grade Trend

Exploration Programs

Allied Critical Metals Expands Santa Helena

Breccia in Borralha with Long Tungsten

Intercepts and Confirms High-Grade Trend

Highlights:

The latest drill results build on Bo_RC_14/25 drill hole (previously released as 12.0 metres

@ 4.27% WO

from 252.0 metres, incl. 6.0 metres @ 8.39% WO

from 252.0 metres) and

collectively suggests a larger and higher-grade Breccia complex than previously

modeled.

Bo_RC_17/25 results included 100.0 metres @ 0.21% WO

from 52.0 metres, including

32.0 metres @ 0.33% WO

(MF 10.6 m%) from 92.0 metres, including

14.0 metres @ 0.52% WO

(MF 5.2 m%) from 106.0 metres, including

6.0 metres @ 0.74% WO

(MF 4.4 m%) from 110.0 metres

South infill drill hole confirms bulk-mineable medium-grade core with well-defined

high-grade corridors.

Bo_RC_15/25 results included 2.0 metres @ 0.97% WO

from 164.0 metres

South-west deep step-out drill hole with a high-grade intersection consistent with

previously reported Bo_RC_14/25 drill hole.

Bo_RC_22/25 results included 64.0 metres @ 0.12% WO

from 284.0 metres, including

16.0 metres @ 0.21% WO

from 316.0 metres

New northern deep lode opens a new northern vector for resource growth.

Vancouver, British Columbia--(Newsfile Corp. - September 11, 2025) - Allied Critical Metals Inc.

(CSE:

ACM) (OTCQB: ACMIF) (FSE: 0VJ0) ("Allied" or the "Company"), which is focused on its 100% owned

past producing Borralha and Vila Verde tungsten projects in northern Portugal, is pleased to announce

additional significant assay results from its ongoing 4,200 metres reverse circulation (RC) drilling

campaign at its Borralha Tungsten Project. The latest results from drill holes Bo_RC_15/25,

Bo_RC_17/25, and Bo_RC_22/25 extend mineralization both west and north of the previously

announced Bo_RC_14/25 high-grade intercept, reinforcing that the Santa Helena Breccia within the

Borralha Project is emerging as a larger and higher-grade orebody than previously modeled. The

Company will commence an additional fully funded 1,528 metre drilling in the fourth quarter of 2025 to

build off the drilling success in July.

The results are especially timely as tungsten price has now reached a new high of U.S.$550/MTU, which

is an increase of more than 40% over the past four months as demand for the critical mineral increases

in the face of further supply chain restrictions from non-Western countries [Source: FastMarkets].

Roy Bonnell, CEO & Director of Allied, commented: "These thick, continuous intervals in the central-

south and the new northern deep lode materially expand the working envelope at the Santa Helena

Breccia in Borralha. Together with the previously reported ultra-high-grade intercept in Bo_RC_14/25,

we see clear evidence of a system that is both bigger and better than we initially assumed. This is

exactly the kind of data we want feeding into the upcoming Mineral Resource Estimate (MRE) and

Preliminary Economic Assessment (PEA). Moreover, the results demonstrate the potential of Borralha

as a key strategic, safe, and secure source of tungsten for Portugal, the EU and NATO."

João Barros, President & COO of Allied, stated: "Tungsten is recognized by the European Union as both

a critical and strategic raw material under the CRMA. With Europe producing less than 3% of its annual

needs and facing increasing Chinese export restrictions, the Borralha Project represents a vital

opportunity to strengthen secure, Western-aligned supply chains. Our work directly supports the EU

target of sourcing at least 10% of its critical raw materials domestically by 2030, while reinforcing

Portugal's role as a key contributor to Europe's strategic independence. "

General (Ret.) James A. "Spider" Marks, Director of the Company's U.S. subsidiary, stated: "Expanding

the mineral resource at the Borralha Project is an essential next step in path to fulfilling the immense

need in Portugal, the EU, NATO and the United States for tungsten powders, concentrates and other

byproducts. The U.S. and NATO defense military complexes are dependent on tungsten. Without

domestic supply of tungsten, the Borralha Project becomes a very important piece to the critical mineral

supply chains for the United States and NATO."

These latest drilling results are highly significant because they combine both scale and grade. The long

intercepts at 0.21-0.33% WO

in Bo_RC_17/25 are particularly meaningful in wolframite systems. In

addition, the drilling program is clearly growing the footprint of the Breccia complex.

The Bo_RC_22/25

delineates a northern deep lode, while Bo_RC_15/25 ties the west-deep high-grade corridor back to the

main body-both lines of evidence supporting a larger Santa Helena Breccia, the principal mineralized

body at Borralha Project.

Table 1 - Drill Hole Collar Locations

Drill Hole ID

Coordinates (WGS84)

Az.(º)

Dip.(º)

PFD (m)

DEPTH (m)

Bo_RC_14/25

585445

4611405

109

250

264.00

Bo_RC_15/25

585347

4611368

109

300

255.00

Bo_RC_16/25

585406

4611329

105

240

251.00

Bo_RC_17/25

585426

4611295

109

250

255.00

Bo_RC_18/25

585461

4611431

109

300

241.00

Bo_RC_19/25

585470

4611493

109

350

247.00

Bo_RC_21/25

585484

4611552

109

400

370.00

Bo_RC_22/25

585484

4611552

109

360

375.00

Bo_RC_26/25

585586

4611449

289

400

287.00

Table 2 - Drill Hole Interval Highlights

Drill Hole ID

From (m)

To (m)

DH length (m)

[1]

True factor

[1]

True Width (m)

[1]

(%)

Bo_RC_14/25

52.0

64.0

12.0

tbd

[2]

4.27

incl.

52.0

58.0

6.0

tbd

[2]

8.39

Bo_RC_15/25

164.0

166.0

2.0

0.88

1.8

0.97

Bo_RC_17/25

52.0

152.0

100.0

0.90

89.9

0.21

incl.

92.0

124.0

32.0

0.90

28.8

0.33

incl.

106.0

120.0

14.0

0.90

12.6

0.52

incl.

110.0

116.0

6.0

0.90

5.4

0.74

Bo_RC_22/25

284.0

348.0

64.0

tbd

[2]

0.12

incl.

316.0

332.0

16.0

tbd

[2]

0.21

Notes:

[1] Reported intervals are downhole lengths. Estimated true widths were calculated from hole orientation and the interpreted geometry of the

mineralized corridors. Estimates may vary locally where geometry changes. Where intervals fall outside the resource block-model domains, true

widths are not estimated and only downhole lengths are reported. [2] True widths are unknown.

Figure 1

– Drill collar plan showing planned holes for the ongoing 5,728 m RC campaign at the Borralha

Project. The red outline delineates the main mineralized breccia zone.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/11632/265932_59740f4fd42498c1_001full.jpg

Figure 2

– Geological Cross-Section for hole

Bo_RC_17/25

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/11632/265932_59740f4fd42498c1_002full.jpg

Geologic Interpretation

The geologic interpretation indicates that the Santa Helena Breccia is expanding: the combination of

broad medium-grade intervals and discrete high-grade intercepts points to a larger, better-connected

breccia body than previously modeled. Priority vectors for follow-up include the west-dip high-grade

trend (Bo_RC_14/25 and Bo_RC_15/25) and the northern wider deep lode (Bo_RC_22/25), which will

guide near-term drilling and feed the Q4 2025 MRE and subsequent PEA workstreams.

Next steps

Ongoing drilling continues to target west-deep and northern extensions while tightening spacing across

the MRE backbone. Additional assays from completed holes will be released as received and validated.

The program remains aligned with the timeline toward an updated MRE (Q4 2025) and PEA thereafter.

Technical Information and Quality Assurance/Quality Control (QA/QC)

Drilling was completed using reverse-circulation (RC). All sample bags were pre-labelled with a unique

internal sequence number used consistently for the assay sample and corresponding reject. Sampling

was conducted on 2.0 m intervals for analytics. For each 2.0 m interval, two 1.0 m reject samples were

also collected as representative splits. Splitting was performed at the rig via a rotary splitter integral to

the RC cyclone.

Sampling followed pre-prepared sample lists that recorded downhole metreage, sequence, and the

placement of Certified Reference Materials (CRMs) and field duplicates. CRMs were inserted at a rate

of 1 in 20 samples (5%) and field duplicates at 1 in 20 samples (5%), arranged so that every 10th

sample alternated between a CRM and a duplicate.

Analytical and reject samples were boxed at the drill site and transported by company personnel to the

project core/logging facility. Analytical samples were stored on labelled pallets pending direct shipment

to ALS's preparation laboratory in Seville, Spain. Pulps and rejects were subsequently stored securely in

the project logging room.

At ALS Seville, samples were crushed to 70% passing 2 mm, riffle-split to ~250 g, and pulverized using

hardened steel to 85% passing 75 μm. Pulps were shipped to ALS Loughrea (Ireland) for analysis. The

primary analytical method was ME-MS81 (lithium borate fusion with ICP-MS finish). Base metals were

also reported using ME-4ACD81 (four-acid digestion with ICP-MS finish). Over-limit tungsten results

were re-assayed using W-XRF15b (lithium borate fusion with XRF). Analytical results were delivered

directly by ALS to the Company via secure electronic transfer.

To the best of the Company's knowledge, no drilling, sampling, recovery, or other factors have been

identified that would materially affect the accuracy or reliability of the data referenced herein.

Where reported, metal factor (m·%WO

) is the product of interval length and grade and is provided as

supplemental context only. Primary disclosure remains the reported grade and interval length (and true

width where known).

Qualified Person

The scientific and technical information in this news release has been reviewed and approved by Mr.

Vítor Arezes, BSc, MIMMM (QMR) (Membership Nº. 703197, Vice-President Exploration of Allied

Critical Metals, who is a Qualified Person for the purposes of National Instrument 43-101 –

Standards of

Disclosure for Mineral Projects

. Mr. Arezes is not independent of Allied Critical Metals Inc. as he is an

officer of the Company.

Understanding Tungsten

To understand tungsten, it is critical to understand the difference between wolframite tungsten

mineralization and scheelite tungsten mineralization. Scheelite often reports higher grades (0.3%-1.0%

) but is more costly and complex to process, requiring flotation methods with higher capital and

operating expenditures and lower recoveries.

In contrast, wolframite, which is the focus of Allied, can be

processed more efficiently using gravity and magnetic separation, resulting in lower costs and higher

recoveries, making lower grades (~0.15%-0.25% WO

) economically viable in wolframite deposits. For

example, a wolframite deposit with 0.4% WO

over 3 metres can be more profitable than a scheelite

deposit with 0.7% WO

over the same interval due to lower processing costs and higher recovery rates.

In Western exploration drilling, tungsten grades typically range from 0.3% to 1.0% WO

iii

The cut-off

grade for economic viability is generally around 0.1% WO

, with highly efficient operations able to mine

at grades as low as 0.08% WO

. Skarn deposits, a common deposit type, typically range from 0.34% to

1.4% WO

, with intercepts of 0.4% WO

over 1-5 metres considered very good and 0.7% WO

over 1-3

metres considered very high-grade.

Intercept lengths can range from 0.6 metres to over 100 metres,

with longer intercepts at strong grades generally preferred for economic mining.

Published exploration results in Western jurisdictions demonstrate the standards for wolframite, with

reported intercepts such as ~9-15 m @ 0.6-0.8% WO

, ~18 m @ 1.0% WO

, and typical intervals of 1-5

m @ 0.25-0.5% WO

. A result like 0.5% WO

over 3 metres is generally considered strong within

Western tungsten exploration benchmarks, especially for wolframite tungsten mineralization.

It is also important to recognize that China, Russia, and North Korea control approximately 87% of the

world's tungsten supply, using cheap labor and minimal environmental standards in authoritarian

regimes.

As a result, production costs and grades in these countries are not comparable to Western

projects, which operate under higher labor, ESG, and energy cost structures. Evaluating projects outside

these regions provides a realistic benchmark for what grades and intercepts are economically viable

while supporting secure, NATO-aligned supply chains.

For Allied, this context is significant. Wolframite tungsten grades, ranging from 0.2% to 1.0% WO

are

strong global wolframite benchmark values. The Company's focus on wolframite ensures lower

processing costs and higher recoveries, supporting project economics even at lower grades. Allied's

operations in secure jurisdictions align with Western critical mineral needs, avoiding geopolitical risks

associated with China and Russia while positioning the Company to benefit from growing tungsten

demand across defense, aerospace, and electrification sectors. Allied's strong grades, low-cost

processing advantages, and secure location position it as a strategic and responsible tungsten

exploration company, well placed to support robust project economics in a rising-demand market.

vii

The results and intercepts referenced are drawn from publicly available disclosures of third-party mineral projects and are presented for industry

benchmarking and comparison purposes only. Allied has no interests in those projects or entities.

ON BEHALF OF THE BOARD OF DIRECTORS,

"Roy Bonnell"

Roy Bonnell, CEO and Director

For further information or investor relations inquiries, please contact:

Dave Burwell

Vice President, Corporate Development

Email:

[email protected]

Tel: 403-410-7907

Toll Free: 1-888-221-0915

ABOUT ALLIED CRITICAL METALS

Allied Critical Metals Inc.

(CSE: ACM) (OTCQB: ACMIF) (FSE: 0VJ0) is a Canadian-based mining

company focused on the expansion and revitalization of its 100% owned past producing Borralha

Tungsten Project and the Vila Verde Tungsten Project in northern Portugal with advantageous wolframite

tungsten mineralization. Tungsten has been designated a critical metal by the United States and other

western countries, as they are aggressively seeking friendly sources of this unique metal. Currently,

China, Russia and North Korea represent approximately 86% of the total global supply and reserves.

Tungsten is used in a variety of industries such as defense, automotive, manufacturing, electronics, and

energy.

Please also visit our website at

www.alliedcritical.com

Also visit us at:

LinkedIn:

https://www.linkedin.com/company/allied-critical-metals-inc

https://x.com/@alliedcritical/

Instagram:

https://www.instagram.com/alliedcriticalmetals/

The Canadian Stock Exchange does not accept responsibility for the adequacy or accuracy of

this release.

Cautionary Statement Regarding Forward-Looking Information

This news release contains "forward-looking statements", including with respect to the use of proceeds.

Wherever possible, words such as "may", "would", "could", "should", "will", "anticipate", "believe", "plan",

"expect", "intend", "estimate", "potential for" and similar expressions have been used to identify these

forward-looking statements. These forward-looking statements reflect the current expectations of the

Company's management for future growth, results of operations, performance and business prospects

and opportunities and involve significant known and unknown risks, uncertainties and assumptions,

including, without limitation, those listed in the Company's Listing Statement and other filings made by

the Company with the Canadian securities regulatory authorities (which may be viewed under the

Company's profile at

www.sedarplus.ca

). Examples of forward-looking statements in this news

release include, but are not limited to, statements regarding the proposed timeline and use of proceeds

for exploration and development of the Company's mineral projects as described in the Company's

Listing Statement, news releases, and corporate presentations. Should one or more of these risks or

uncertainties materialize or should assumptions underlying the forward-looking statements prove

incorrect, actual results, performance or achievements may vary materially from those expressed or

implied by the forward-looking statements contained in this news release. These factors should be

considered carefully, and prospective investors should not place undue reliance on the forward-looking

statements. This list is not exhaustive of the factors that may affect any of the Company's forward-looking

statements and reference should also be made to the Company's Listing Statement dated April 23,

2025 and news release dated May 16, 2025, and the documents incorporated by reference therein, filed

under its SEDAR+ profile at

www.sedarplus.ca

for a description of additional risk factors. The

Company disclaims any intention or obligation to revise forward-looking statements whether as a result

of new information, future developments or otherwise, except as required by law.

International Tungsten Industry Association (ITIA). (2023).

Tungsten: Global industry, markets &

outlook

. Retrieved from

https://www.itia.info

International Tungsten Industry Association (ITIA). (2023).

Tungsten: Global industry, markets &

outlook

. Retrieved from

https://www.itia.info

iii

US Geological Survey (USGS). (2024).

Mineral commodity summaries: Tungsten

. Retrieved from

https://pubs.usgs.gov/periodicals/mcs2024/mcs2024-tungsten.pdf

British Geological Survey (BGS). (2023).

Tungsten fact sheet

. Retrieved from

https://www.bgs.ac.uk/downloads/start.cfm?id=1408

International Tungsten Industry Association (ITIA). (2023).

Tungsten: Global industry, markets & outlook

Retrieved from

https://www.itia.info

Argus Media Group. (2025).

Argus Tungsten Monthly Outlook

. Issue 26-6, 11 June 2025.

https://argusmedia.com

International Tungsten Industry Association (ITIA). (2023).

Tungsten: Global industry, markets &

outlook

. Retrieved from

https://www.itia.info

US Geological Survey (USGS). (2024).

Mineral commodity summaries: Tungsten

. Retrieved from

https://pubs.usgs.gov/periodicals/mcs2024/mcs2024-tungsten.pdf

vii

International Tungsten Industry Association (ITIA). (2023).

Tungsten: Global industry, markets &

outlook

. Retrieved from

https://www.itia.info

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/265932

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