Bo_RC_25 validates and expands the ultra high-grade zone first identified in Bo_RC_14 (Released Sept. 4), reinforcing Borralha’s status as one of Europe’s most significant tungsten discoveries amid increasing global prices.

Allied Critical Metals Inc. (CSE: ACM) (OTCQB: ACMIF) (FSE: 0VJ0), which is focused on its 100% owned past producing Borralha and Vila Verde tungsten projects in northern Portugal, is pleased to announce new assay results from the ongoing 2025 Reverse Circulation drilling campaign.

The latest results from holes Bo_RC_25/25, Bo_RC_20/25, and Bo_RC_29/25 confirm exceptional tungsten grades and strong mineralization continuity along the western dip of the Santa Helena Breccia (SHB). These intercepts validate and extend the ultra high-grade tungsten zone first discovered in hole Bo_RC_14, strengthening the broader mineralized system and supporting a significant expansion of the upcoming Mineral Resource Estimate.

Tungsten price growth remains strong as it recently hit a high of USD $700/MTU APT, up roughly 70% over the past six months, amid increasing demand for critical raw materials and tightening global supply.

Highlights:

Bo_RC_25/25:

• 18.0 m @ 0.85 % WO₃ from 270.0 m, including
  • 4.0 m @ 3.72 % WO₃ from 270.0 m

• Confirms and extends the very high-grade zone previously identified in Bo_RC_14 within the western dip of SHB.

Bo_RC_20/25:

• 18.0 m (16.4 m TW) @ 0.29 % WO₃ from 170.0 m, including
  • 6.0 m (5.5 m TW) @ 0.76 % WO₃ from 170.0 m

• Confirms high-grade lenses within the upper SHB flank, consistent with geometry predicted in the 2024 model.

Bo_RC_29/25:

• 10.0 m (7.9 m TW) @ 0.27 % WO₃ from 96.0 m, including
  • 4.0 m (3.2 m TW) @ 0.45 % WO₃ from 96.0 m

• Confirms the mineralized system westward along strike.

Roy Bonnell, CEO & Director of Allied commented, “Borralha continues to outperform expectations. The confirmation of the very high-grade tungsten zone from Bo_RC_14 by Bo_RC_25 underscores the strength and continuity of the Santa Helena Breccia system on the Borralha property. These new results further demonstrate the potential for significant resource expansion and underscore Borralha’s importance as a cornerstone tungsten asset for Allied and for Portugal.”

Vítor Arezes, VP Exploration and Qualified Person, added: “With these new intercepts, we now have clear evidence that the high-grade tungsten structure extends both down-dip and laterally. Bo_RC_25 not only confirmed the Bo_RC_14 intercept but expanded it – an important validation of our updated geological model and structural interpretation.”

Geological Context

Hole Bo_RC_25/25 was drilled approximately 35 m down-dip from Bo_RC_14, intersecting a broad breccia-hosted wolframite zone that confirms both grade and structural continuity of the previously reported ultra high-grade intercept.

Hole Bo_RC_20/25 targeted the central SHB corridor and successfully intersected thick, well-developed mineralization consistent with the interpreted feeder geometry of the 2024 model.

Hole Bo_RC_29/25, positioned farther northwest, extended mineralization along the dip direction, linking the current resource envelope with the recently identified NW expansion zone.

Together, these holes define a continuous, steeply dipping, high-grade backbone that remains open both along strike and at depth – an important step toward the forthcoming MRE update (Q4 2025) and Preliminary Economic Assessment (PEA, Q1 2026).

Drill Program Progress

To date, 4,210 metres of drilling have been completed from the initially planned 5,625-metre Phase 1 campaign. The program focus was:

• Expanding and upgrading the current NI 43-101 Mineral Resource Estimate (MRE), expected in Q4 2025.
• Supporting a robust Preliminary Economic Assessment (PEA).
• Advancing data integration for mine design and the ongoing EIA review.

Next Steps

The Phase 1 drilling campaign and final assay results are now complete. Step-out holes successfully tested both the western and northern extensions of the Santa Helena Breccia, while infill drilling refined the core resource model. These results will continue to inform the forthcoming updated Mineral Resource Estimate (MRE) and subsequent economic studies.

Table 1 – Drill hole Collar Locations and Status

 Table 2 – Current Campaign Interval Highlights Update

 Figure 1 – Drill collar plan showing planned holes for the completed 4,210 m RC campaign at the Borralha Project. The red outline delineates the main mineralized breccia zone.

Figure 2 – Geological Cross-Section for hole Bo_RC_27/25.

Sampling, QA/QC and Analytical Notes

Drilling was carried out using a reverse-circulation (RC) rig equipped with a rotary splitter integral to the cyclone to ensure representative sampling. Samples were collected at 2.0 m intervals, yielding approximately 4-6 kg per primary sample. Each sample bag was pre-labeled with a unique sequence ID corresponding to the down-hole interval and to its associated reject sample.

Certified Reference Materials, coarse blanks, and field duplicates were inserted into the sample stream at a combined frequency of 10 % (5 % CRMs, 3 % blanks, 2 % duplicates). The sequence of QA/QC samples was randomized to avoid bias.

All samples were sealed at the drill site and transported by company personnel to the Borralha logging facility for secure storage prior to shipment. Sample batches were dispatched by courier directly to ALS Seville (Spain), an ISO/IEC 17025-accredited preparation laboratory. At ALS Seville, samples were crushed to 70 % passing 2 mm, riffle-split to ~250 g, and pulverized to 85 % passing 75 µm using hardened steel.

Pulverized pulps were analyzed at ALS Loughrea (Ireland) using the ME-MS81 (lithium-borate fusion with ICP-MS finish) multi-element method; over-limit tungsten results (> 1 % WO₃) were re-assayed by W-XRF15b (lithium-borate fusion with XRF finish).

QA/QC results are reviewed on a batch-by-batch basis. All CRMs and blanks for the batches reported herein returned values within acceptable control limits, and field duplicates showed strong reproducibility. No issues were identified that would materially affect the accuracy or reliability of the data.

The primary disclosure in this news release refers to down-hole length and grade; true widths are estimated where possible based on current geological interpretation.

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.

Qualified Person

The scientific and technical information contained in this release has been reviewed and approved by Mr. Vítor Arezes, BSc, MIMMM (QMR), Vice-President Exploration of Allied Critical Metals, a Qualified Person under NI 43-101. Mr. Arezes is not independent of the Company as he is an officer of Allied Critical Metals Inc.

About the Borralha Tungsten Project

Allied’s Borralha Tungsten Project is one of the largest and most historically significant past-producing tungsten operations in Western Europe. Located in northern Portugal, Borralha was once the second-largest tungsten mine in the country and supplied strategic materials to European and Allied industries during the 20th century, including both World Wars and the Cold War period.

Today, the project is undergoing a modern revitalization based on a combination of scale, grade, metallurgy, and jurisdictional strength. Mineralization is dominated by coarse-grained wolframite, which is highly desirable in global markets due to its favorable processing characteristics and higher recoveries compared to scheelite-bearing deposits.

Borralha benefits from existing infrastructure, shallow mineralization, and a simple processing route, making it one of the most advanced tungsten development projects in the European Union. These attributes are particularly important in the context of the EU Critical Raw Materials Act (2024/1252) and NATO strategic autonomy initiatives, both of which explicitly identify tungsten as a defense-critical raw material subject to severe supply risk.

With the EU currently dependent on over 80% of its tungsten imports from China, Borralha represents a rare and strategic opportunity to develop a secure, domestic, and NATO-aligned supply source. As Allied continues to advance drilling, resource expansion, and economic studies, Borralha is poised to play a central role in reshaping Europe’s tungsten landscape-supporting both decarbonization technologies and defense-industrial resilience.

About Allied Critical Metals Inc.

Allied Critical Metals Inc. 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 over 87% of the total global supply and reserves. Tungsten is used in a variety of industries such as defense, automotive, manufacturing, electronics, and energy.