GREENLAND, TANBREEZ ASSET DRILLING REE HIGHLIGHTS: 

• Consistent Rare Earth Grades: TREO grades range from 0.39% to 0.54%, with heavy rare earth oxides (HREO) representing approximately ~25–27% TREO.
• Strategic Metals: Gallium oxide (~97 ppm), hafnium oxide (~350 ppm), yttrium oxide (~742 ppm), and cerium oxide (~1,630 ppm) are consistently present, alongside zirconium (1.55–1.97%), niobium, and tantalum—supporting multi-commodity potential.
• Potential: The Fjord area remains open along strike and demonstrates strong vertical grade continuity, indicating significant potential for resource growth.
• Mineralisation is confirmed to occur consistently from surface.

Critical Metals Corp. (Nasdaq: CRML) a leading a critical minerals development company, is pleased to announce that the final results for the 2024 drilling program have now been received at the Fjord area of the Tanbreez Rare Earth Project in Greenland. The drilling campaign was designed to extend known mineralization and refine the geological model of the area. These results will enable the Company to prepare a revised Mineral Resource Estimate and advance subsequent mine planning studies.

Despite logistical challenges related to sample processing and transport, and extended assay turnaround times and quality assurance checks, the results confirm consistent rare earth grades and highlight strategic metals including gallium, hafnium, cerium and yttrium – reinforcing Tanbreez’s position as a world-class critical minerals deposit.

Figure 1. Project Summary Plan (WGS84 zone 23N)

 Figure 2. 2024 Diamond Drilling Resource Confirmation (Fjord Area) (WGS84 zone 23N)

The 2024 diamond drilling campaign demonstrates consistent grades and mineralization both vertically and laterally supportive of higher confidence in mineral resource estimates and the potential for significant expansion of the current resource base.

The drilling continues to highlight the projects potential to host significant multi-commodity potential with associated Gallium oxide (~97 ppm), hafnium oxide (~350 ppm), yttrium oxide (~742 ppm), and cerium oxide (~1,630 ppm) present, alongside zirconium (1.55–1.97%), niobium, and tantalum.

Project and Geological Setting

The Tanbreez Project (MIN 2020-54) is situated in southern Greenland, covering an area of approximately 18 km². The regional capital, Qaqortoq, lies 20 km to the south, and a regional airport at Narsarsuaq is in construction approximately 12 km south of the license area.

The Tanbreez deposit is classified as a peralkaline igneous Rare Earth Element (REE)–Zirconium (Zr) deposit and is hosted within the Ilímaussaq Alkaline Complex in South Greenland.

Kakortokite is the dominant host rock for mineralization at Tanbreez. Kakortokite is a rhythmically layered feldspar, arfvedsonite, aegirine, and eudialyte peralkaline cumulate (red/white/black bands) rock.

The primary REE-bearing mineral is eudialyte, which carries both light and heavy REEs, along with zirconium (Zr), cerium (Ce), Hafnium (Hf), niobium (Nb), and tantalum (Ta). Eudialyte has low uranium (U) and thorium (Th), making it attractive for mining.

The unit is laterally persistent, with a surface footprint of approximately 5 × 2.5 km and a thickness of up to 350 m.

Mineralization is integral to the host fabric (eudialyte-dominant). The kakortokite ore is stratiform (primary magmatic layering). It is also lithological constrained (strata bound) but remains genetically magmatic.

The 2024 Drilling program targeted strike extensions of known mineralization and further refinement of the geological and mineralization model of the area. The primary objective of the program was to support an upgrade to the Mineral Resource Estimate at the deposit and to advance subsequent mine planning studies.

A total of 13 holes for 1,149.50 metres were drilled vertically with one angled hole to intersect sub-horizontal layers at true thickness.

The reported 2024 results show narrow TREO variance (~0.39–0.54% TREO) with stable ~27% HREO proportion across multiple vertical holes spaced along the Fjord kakortokite, aligning with a stratiform, laterally continuous magmatic layer.

• TREO: ~0.39–0.524% (weighted downhole averages per hole).
• HREO fraction: ~25–27% HREO.
• Gallium oxide (~97 ppm), hafnium oxide (~350 ppm), yttrium oxide (~742 ppm), and cerium oxide (~1,630 ppm) are consistently present, alongside zirconium (1.55–1.97%), niobium, and tantalum

• TREO comprises the sum of La₂O₃, CeO₂, Pr₆O₁₁, Nd₂O₃, Sm₂O₃, Eu₂O₃, Gd₂O₃, Tb₄O₇, Dy₂O₃, Ho₂O₃, Er₂O₃, Tm₂O₃, Yb₂O₃, Lu₂O₃, and Y₂O₃. No economic weighting has been applied (i.e., no NdPr or DyTb separated)
• No grade cut-offs or metal equivalents have been applied; intersections represent true widths. And percentile ranges are based on the 25^th and 75^th percentiles.
• All drilling and assay results, including both higher and lower grades, are reported to ensure balanced disclosure

Samples from the 2025 drilling field season which targeted the northern extension of the Fjord Deposit are still pending. Once received and interpreted, the Company intends to undertake an updated Mineral Resource Estimate for the Fjord deposit, followed by additional mine planning studies.

Planning for the 2026 Field Season is currently underway.

Coordinates based on WGS1984 zone 23 North grid system

Qualified Person Statement

The information in this announcement that relates to Exploration Results for the Tanbreez Rare Earth Project in Greenland, including the 2024 Fjord Deposit diamond drilling results, is based on and fairly represents information compiled and reviewed by Malcolm Castle, who is a Member of the Australasian Institute of Mining and Metallurgy (AusIMM) and a Competent Person as defined in the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (JORC Code).

Mr. Castle is an independent Principal Consultant of Agricola Mining Consultants Pty Ltd and has more than sufficient experience that is relevant to the style of mineralization, type of deposit, and activity being undertaken to qualify as a Competent Person under the JORC Code.

Mr. Castle has consented to the inclusion in this announcement of the matter based on his information in the form and context in which they appear.

Reference to Mineral Resources

This announcement refers to the Mineral Resource estimate for the Tanbreez Project first reported on 13 March 2025, which was based on the geological model originally completed in 2016. The Company confirms that it is not aware of any new information or data that materially affects the information included in that Mineral Resource estimate and that all material assumptions and technical parameters underpinning the estimate continue to apply and have not materially changed.

No New Mineral Resource Estimate

The results reported here relate solely to Exploration Results from the 2024 confirmation drilling campaign. This announcement does not report or imply an updated Mineral Resource estimate.

About Critical Metals Corp.

Critical Metals Corp is a leading mining development company focused on critical metals and minerals, and producing strategic products essential to electrification and next generation technologies for Europe and its western world partners. Its flagship Project, Tanbreez, is one of the world’s largest, rare-earth deposits and is in Southern Greenland. The deposit is expected to have potential access to key transportation outlets as the area features year-round direct shipping access via deep water fjords that lead directly to the North Atlantic Ocean.

Another key asset is the Wolfsberg Lithium Project located in Carinthia, 270 km south of Vienna, Austria. The Wolfsberg Lithium Project is the first fully permitted mine in Europe and is strategically located with access to established road and rail infrastructure and is expected to be the next major producer of key lithium products to support the European market. Wolfsberg is well positioned with offtake and downstream partners to become a unique and valuable asset in an expanding geostrategic critical metals portfolio.

With this strategic asset portfolio, Critical Metals Corp is positioned to become a reliable and sustainable supplier of critical minerals essential for defense applications, the clean energy transition, and next-generation technologies in the western world.