Critical Metals Corp. Announces Exceptionally High Grades of both Gallium & Rare Earth Elements Results at its Tanbreez Project in Greenland

NEW YORK, Aug. 04, 2025 (GLOBE NEWSWIRE) -- Critical Metals Corp. (Nasdaq: CRML) ("Critical Metals Corp" or the "Company"), a leading critical minerals mining company, is pleased to report outstanding assay results from recent as well as historical diamond drilling programs in southern Greenland.

Commenting on the assay results, Tony Sage, CEO and Executive Chairman of the Company, said:

"These exceptional results underscore the strategic value of Tanbreez as a rare earth and gallium project with scale, grade, and a high proportion of critical heavy rare earths. With China's ban on gallium exports to the United States, securing domestic sources of these critical minerals has become paramount for U.S. defense capabilities and national security. Our gallium results, combined with our rare earth grades, position Tanbreez as a strategically important asset for Western supply chains. The progress we've made, processing all 2024 drill cores, submitting 50% of samples for assay, and already completing over 1,200 meters of drilling as part of our 2025 Fjord Resource Upgrade program, puts us in a strong position to build on our significant resource base. With further assays pending and more drilling underway, we see strong potential to grow the scale and world class nature of the project's mineral inventory."

TANBREEZ PROJECT DRILLING HIGHLIGHTS INCLUDE:

• New diamond drill assay results from ten holes:
  • Gallium Oxide from 80 ppm to 140 ppm
  • TREO range from 0.32% to 0.89%, with 27% HREO
  • Holes drilled in 2010 within the Hill Deposit Mineral Resource Estimate
  • Assays were for partially sampled holes; remaining sections planned
    
    

These results add to the previously announced high-grade gallium results of up to 147 ppm Ga2O3 discovered at Area G, released on November 26, 2024 and available at this link.

• Summary of Tanbreez historic drilling results confirming High-Grade TREO 0.38% to 0.51% with 28% HREO at the Fjord Deposit and 0.42% to 0.48% with 26% HREO at the Hill Deposit
• All 2024 drill cores processed, with approximately 50% of samples in ALS Perth for assaying
• 2025 Fjord Resource Upgrade Diamond Drilling program - five holes completed to date for 1,250 meters.
  
  

Figure 1. View of the Tanbreez Project and the exploration Team 2025

New Assay Results from 2010 drilling at the Hill Deposit

Ten diamond drill holes that were drilled in 2010 at the upper layer of the Hill Deposit were assayed for the first time by ALS Metallurgical in June 2025 for a full suite of rare earth elements and other metals including gallium. The Company notes that the assaying of historical drill cores from the Rimbal period (2007-2013) is nearing completion, and future news flow will primarily consist of current drilling results from the 2024-2025 campaigns.

The collar positions and weighted average assays for each hole are shown in tables 1 and 2. Weighting was based on the sum of drill intercept length multiplied by the assay value divided by the total length. All holes are vertical and represent true thickness of the kakortokite. The drill hole samples were used for geochemical and geotechnical analysis, with selected intervals sent to the laboratory. The company will assay the remaining sections at a later stage. Refer to Table 1 and 2, and JORC Table 1, Appendix 2 and 3.

Hole ID	Easting	Northing	Elevation	Dip	Azimuth	Depth [m]
10-D02	453,839	6,748,068	396	-90	0	30
10-D05	454,300	6,748,059	435	-90	0	30
10-D07	453,809	6,748,142	378	-90	0	30
10-D09	454,145	6,748,149	418	-90	0	30
10-D12	453,920	6,748,220	361	-90	0	30
10-D14	454,084	6,748,219	387	-90	0	30
10-D16	454,240	6,748,220	401	-90	0	30
10-D18	454,040	6,748,300	372	-90	0	30
10-D22	454,361	6,748,306	394	-90	0	30
10-D24	454,001	6,748,367	344	-90	0	30

Table 1 - 2010 geotechnical and geochemical diamond drill hole collar positions

Figure 2. Fjord and Hill Deposits and 2025 Diamond Drilling Program

Figure 3. Diamond Drill Hole DDH25-02, July 2025

Current 2025 exploration program

On 20 January 2025, the Company announced the REE drilling results from the 2024 diamond drilling program conducted over the Fjord prospect at the Tanbreez Project. The drilling program consisted of 16 holes with a total cumulative length of up to 2,200 m. This confirmatory drill program was designed to optimize the resource for future production capacity and to extend the mine life of the Tanbreez Project.

Additional 2024 diamond drilling core samples have been processed for assaying with 7 drill holes awaiting reporting. The results of these assays will be released once ALS Metallurgical in Perth complete the ICP Fusion analysis for REE, HREE and associated metal oxides, including gallium oxide, which is expected to occur by the middle of September.

Core samples from a further 8 diamond holes are in transit from Greenland to Perth, with results expected in the middle of October.

The Company recently announced a series of historical diamond drilling results on 28 March 2025, 12 May 2025, 20 May 2025 and 11 June 2025 proving a compelling high-grade TREO and HREO comparison results for deep diamond drill holes to the results for 2024 drilling, (see Tables 1 and 2 and Figure 4).

Figure 6. 2025 Diamond Drill Hole drill core DDH25-02 with Company Geologists

Figure 7. 2025 Diamond Drill Hole drill core DDH25-02, close up showing mauve eudialyte in the kakortokite host

The drill core has not been assayed and used in this image as a visual estimate only

Hole ID	From	To	Interval	Total Depth	TREO		HREO		ZrO2		Ta2O5	Nb2O5
	(m)	(m)	(m)	(%)	(%)		(%)		(ppm)		(ppm)	(ppm)
FJORD DEPOSIT AREA
DDH-07-06	23.32	70.97	47.65	99.00	0.38	%	28	%	1.35	%	101
DDH-07-07	3.99	103.32	99.33	111.00	0.43	%	28	%	1.50	%	99
DDH-07-08	4.38	122.75	118.37	171.00	0.49	%	29	%	1.79	%	101
DDH-07-09	3.65	76.60	72.96	168.00	0.51	%	29	%	1.90	%	96
DDH-07-10	3.08	136.69	133.61	150.00	0.41	%	28	%	1.54	%	102
DDH-07-11	1.26	249.00	247.75	249.00	0.33	%	27	%	0.82	%	67
DDH-07-12	1.52	78.02	76.50	78.00	0.41	%	29	%	1.40	%	70
DDH-13-001	-	52.00	52.00	51.50	0.43	%	26	%	1.70	%		1750
DDH-13-003	-	43.00	43.00	52.00	0.41	%	27	%	1.67	%		1790
DDH-13-009	-	59.00	59.00	64.00	0.48	%	27	%	1.91	%		1920
DDH-13-011	-	60.50	60.50	62.00	0.49	%	27	%	1.93	%		1920
DDH-13-012	-	52.00	52.00	80.00	0.39	%	27	%	1.51	%		1600
DDH-13-015A	-	65.00	65.00	72.00	0.41	%	26	%	1.58	%		1660
DDH-13-015B	-	46.00	46.00	52.00	0.38	%	27	%	1.53	%		1520
DDH-13-016	3.00	41.95	38.95	68.00	0.49	%	28	%	1.93	%		2010
A1-24	-	40.00	40.00	40.00	0.47	%	27	%	1.82	%	131	1850
Weighted Average			1,252.62		0.42	%	28	%	1.49	%	90	1800
HILL DEPOSIT AREA
DDH-07-13	2.51	81.63	79.12	85.20	0.46	%	27	%	1.23	%	69
DDH-07-14	2.11	243.00	240.89	243.00	0.48	%	29	%	1.57	%	68
DX-02	0	195.00	195.00	195.00	0.42	%	24	%	0.91	%	63	1290
D306-13	0	269.00	269.00	328.00	0.45	%	27	%	1.70	%		2480
DX-01	0	220.00	220.00	338.00	0.42	%	24	%	2.45	%	73	1170
Weighted Average			1004.01		0.45	%	26	%	1.64	%	90	1800

Table 3 - Recent Drill Hole Results (announced 18 March 2025, 28 March 2025, 12 May 2025 and 9 June 2025) - holes DDH-07-06 to DDH-07-10 were drilled from the same collar location, BDL= Below Detection limit, NA = Not Assayed

Figure 8. Proposed 2025 Diamond Drill Hole DDH25-05,05A, 06, 07, 08 and drilled Diamond Drill Hole 2024 DDH P-24, awaiting assay results

The Mineral Resource Upgrade Drilling Program

The Company announced on 24 June 2025 that CRML had executed a US$2.0M diamond drill hole contract designed to increasing the existing Mineral Resource Estimate over the Fjord Eudialyte Deposit which presently has an Indicated Resource of 8.76MT and an Inferred Resource of 13.8MT, totalling 22.56MT.

The resource drilling will test extensions of the current Fjord Eudialyte Deposit to the Northeast and Southwest areas of approximately 6200 square meters above the existing Fjord Deposit (see Figures 2,7 and 8).

Figure 9. Proposed Diamond Drill collars in white star bursts and actual collars in white circles for extension resource drilling June July 2025

DDH	Easting (m)	Northing (m)	Elev (m)	Azimuth	Dip	EOH
A1-24	452648	6748255	19	0	90	40
A2-24	452648	6748256	19	0	90	41
X-24	452655	6748246	18	56	60	68
B-24	452672	6748355	7	0	90	61.3
C-24	452725	6748305	21	0	90	65.25
D-24	452782	6748350	28	0	90	85.7
E-24	452726	6748410	9	0	90	62.3
F-24	452866	6748303	68	0	90	107.45
G-24	452722	6748352	12	0	90	65
H-24	452951	6748331	77	0	90	150
O-24	452851	6748419	29	0	90	57.96
P-24	453123	6748575	43	0	90	97.84
AS-24	453517	6748942	21	0	90	122.45
K-24	453182	6747925	320	0	90	203.22
Y-24	454853	6749069	314	0	90	185.7
Z-24	454527	6750156	98	140	60	166.5

Table 4 - 2024 diamond drilling statistics

To date, the company is pleased to announce approximately 1500m has been drilled of the targeted 2000m and it is expected the drilling program will be extended beyond 2500m as better than expected kakortokite is found deeper than the designed parameters.

At the date of this publication, we are currently on DDH25-05A at a depth of 221m.

DDH	Easting (m)	Northing (m)	Elev (m)	Azimuth	Dip	EOH
25-01	453227	6748011	302	0	90	197
25-02	453336	6748046	305	0	90	192.7
25-03	453424	6748100	300	315	60	250.5
25-04	453600	6748201	300	300	60	230
25-05	453750	6748320	300	0	90	281
25-05A	453745	6748315	300	290	60	(295	)

Table 5 - 2025 Diamond Drilling Collar table (actual drilling to 1 August 2025)

Figure 10. Diamond Drill Hole DDH25-01 with drilling crew and Tanbreez exploration geologists

Hole ID	From	To	Interval (m)	Total Depth	TREO%		HREO%		Ga2O3 (ppm)	HfO2 (ppm)	Nb2O5 (ppm)	Ta2O5 (ppm)	Th (ppm)	U (ppm)	ZrO2 (%)
10-D02	0.00	2.00	2.00	30.00	0.32%		28.44%		89	215	958	60	17	9	1.21
10-D05	0.00	7.40	7.40	30.00	0.80%		27.29%		104	543	2153	143	42	22	3.04
10-D07	0.00	11.00	11.00	30.00	0.59%		24.30%		113	379	1661	101	38	17	2.12
10-D09	0.00	11.70	11.70	30.00	0.51%		22.64%		115	318	1405	84	37	16	1.74
10-D12	0.00	2.00	2.00	30.00	0.29%		25.39%		116	184	894	56	31	13	1.01
10-D14	0.00	8.40	8.40	30.00	0.52%		23.67%		116	372	1524	98	32	15	2.07
10-D16	0.00	10.00	10.00	30.00	0.54%		24.31%		111	366	1441	90	36	17	1.98
10-D18	0.00	28.00	28.00	30.00	0.52%		24.76%		114	342	1431	85	42	18	1.80
10-D22	0.00	5.60	5.60	30.00	0.89%		27.89%		114	654	2441	155	28	19	3.43
10-D24	0.00	4.50	4.50	30.00	0.78%		27.43%		106	552	2154	131	36	18	2.86
Weighted Average			90.60		0.58%		24.91%		112	389	1,600	99	37	17	2.10

Table 2 - Drill assay results from the 2010 geotechnical - geochemical diamond drill holes in the upper Hill Deposit. Weighted averages were calculated by length × assay / total length per interval, as stated.

Diamond Drill Hole Sampling Parameters

Sampling over the 10 diamond holes was taken over random intervals for the 10 diamond drill holes with reference to geotechnical and stratigraphical measurements.

• Collar data: All collar locations, RLs, azimuths, dips, and hole lengths have been presented in Table 1 of the report.
• Assay data: Table 2 in the report provides the full suite of weighted average downhole assay results for TREO, HREO, Ga2O3, and other elements.
• True widths: All drill holes are vertical (-90°) through sub-horizontal mineralized layers, so intersections are true widths.
• No cut-off grades or metal equivalents were applied. All assays are reported at face value.
• Weighted averages were calculated by length × assay / total length per interval, as stated.
  
  

Figure 4. Location of the 2010 Diamond drill holes within the Hill Deposit

Gallium and Outstanding TREO and HREO identified in the upper layer

The reported range of gallium oxide (Ga2O3) of 80 ppm to 140 ppm from the ten drill holes in the Hill Deposit is notable, particularly for a bulk-tonnage alkaline intrusive system. While not typically the primary economic driver in REE deposits, gallium at this concentration exceeds average crustal abundance (~17 ppm Ga), making it anomalous and potentially significant. It is commonly recovered as a by-product of bauxite or zinc processing, but occurrences in syenitic rocks or eudialyte-hosted REE systems are less common and commercially interesting.

The gallium oxide results at this concentration may justify metallurgical evaluation for potential recovery as a minor by-product from eudialyte. If gallium is hosted within eudialyte, it may report to the eudialyte concentrate and be extractable downstream.

• Gallium is on multiple national critical minerals lists (e.g., EU, US, Australia), enhancing the strategic appeal of Tanbreez.
• TREO range from 0.29% to 0.89%, with 27% HREO is significant because it represents a higher grade than previously reported for the upper zone.

The drilling results for Diamond Hole A1-24 were:

• 0.47%TREO (including 27% averaged heavy rare earth (HREO),
• 1.82% ZrO₂ "zircon oxide",
• 131ppm Ta₂O "tantalum pentoxide",
• 1,852ppm Nb₂O₅ "niobium pentoxide",
• 394ppm HfO₂ "hafnium oxide",
• 102ppm Ga₂O₃ "gallium oxide".

Figure 5. 2010 Drilling Camp. Hill Deposit area

Figure 11. The layered Ilimaussaq intrusion, host of the Tanbreez Project hosted by the kakortokite in the centred and Fjord and Hill Zone 45MT Mineral Resource Estimate Deposits with respective Inferred and Indicated minerals for Eudialyte resource estimates.

The Mineral Resource Estimate for the Fjord and Hill Zone Deposits and drillhole intersections projects the current and potential mineralization through the kakortokite host rock.

The Mineral resource estimate was compiled by A Maynard and Associates in 2016 for then owner of Tanbreez Rimbal P/L and reviewed by Mr George Karageorge as the Competent Person for the Company 28 March 2025.

About Critical Metals Corp.

Critical Metals Corp (Nasdaq: CRML) 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 located in Southern Greenland. The deposit is expected to have 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.

For more information, please visit https://www.criticalmetalscorp.com/.

Cautionary Note Regarding Forward Looking Statements

This news release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Forward-looking statements may include expectations of our business and the plans and objectives of management for future operations. These statements constitute projections, forecasts and forward-looking statements, and are not guarantees of performance. Such statements can be identified by the fact that they do not relate strictly to historical or current facts. When used in this news release, forward-looking statements may be identified by the use of words such as "estimate," "plan," "project," "forecast," "intend," "will," "expect," "anticipate," "believe," "seek," "target," "designed to" or other similar expressions that predict or indicate future events or trends or that are not statements of historical facts. In addition, any statements that refer to projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions, are forward-looking statements.

Forward-looking statements are subject to known and unknown risks and uncertainties and are based on potentially inaccurate assumptions that could cause actual results to differ materially from those expected or implied by the forward-looking statements. Actual results could differ materially from those anticipated in forward-looking statements for many reasons, including the factors discussed under the "Risk Factors" section in the Company's Annual Report on Form 20-F filed with the U.S. Securities and Exchange Commission. These forward-looking statements are based on information available as of the date of this news release, and expectations, forecasts and assumptions as of that date, involve a number of judgments, risks and uncertainties. Accordingly, forward-looking statements should not be relied upon as representing our views as of any subsequent date, and we do not undertake any obligation to update forward-looking statements to reflect events or circumstances after the date they were made, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.

Critical Metals Corp.

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