REG - New Frontier Mineral - Harts Range Bulk Sample Confirm Dominance of HREO

New Frontier MineralsAnnouncement

26/08/2025 07:02

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RNS Number : 5183W  New Frontier Minerals Limited  26 August 2025

New Frontier Minerals Limited / Index: LSE & LSE / Epic: NFM / Sector:
Industrial Metals and Mining

 

26 August 2025

New Frontier Minerals Limited

("NFM" or the "Company")

 

Harts Range bulk sample returns 1.72% TREO including 4.51% Nb(2)O(5)

and exceptional HREO/TREO ratio of 94.8%

 

New Frontier Minerals Limited (LSE/ASX: NFM) is pleased to announce the
geology team has identified additional high-priority targets for drill-testing
at its Harts Range Project, located 140km north-east of Alice Springs in the
Northern Territory, Australia.

 

While awaiting regulatory approval for its inaugural drilling campaign, the
Company collected a 25kg bulk sample from the Cusp Prospect. Recent assay
results returned 1.72% TREO, with a notably high HREO/TREO ratio confirming
the dominance of heavy rare earths. The sample also reported significant
niobium (4.51% Nb₂O₅) and tantalum (0.91% Ta₂O₅) enrichment.

 

Highlights

·    Ahead of the upcoming drilling campaign, NFM collected a 25kg bulk
sample (HRMS001) from the Cusp Prospect for geochemical analysis

·    Assays returned(3) 1.72% TREO (including 0.19% Dy(2)O(3), 0.03%
Tb(4)O(7)), 4.51% Nb(2)O(5) and 0.91% Ta(2)O(5)

·    Very high HREO/TREO ratio of 94.8%, indicating the dominance of heavy
rare earths (HRE) in particular dysprosium and terbium which are high value
magnet rare earth elements (REEs)

·    Global supply of heavy rare earths is overwhelmingly concentrated in
China. With an exceptional HREO/TREO ratio, the Cusp Prospect has the
potential to emerge as a rare non-Chinese source

·    Exceptional niobium enrichment of 4.51% Nb₂O₅ and 0.91% Ta₂O₅
highlights the outstanding grade potential at Harts Range

·    NFM has initiated the regulatory approval process for its maiden
Reverse Circulation (RC) drilling program at Harts Range, which is targeted to
commence in Q3, 2025 subject to regulatory approvals

·    NFM is assessing both conventional and novel processing options for
this HRE-enriched material, with the aim of accelerating the pathway to
commercialisation and enabling future offtake discussions with global magnet
supply chain participants

 

Chairman Gerrard Hall commented: ""These results from our bulk sample at the
Cusp Prospect further reinforce the exceptional potential of our Harts Range
Project. The assays demonstrate not only outstanding rare earth grades, with a
heavy rare earth enrichment ratio above 94%, but also outstanding niobium and
tantalum grades that are rarely seen at surface. This positions Harts Range as
one of the most compelling heavy rare earth and niobium opportunities on the
ASX.

 

"With global supply of heavy rare earths dominated by China, these results
highlight the strategic importance of advancing Harts Range as a potential new
non-Chinese source of critical magnet metals. Our next step is the maiden
drilling program, which will be pivotal in unlocking the scale of the
mineralised system and advancing towards commercialisation."

 

CUSP PROSPECT BULK SAMPLE ANALYSIS

 

Analysis of the bulk sample assays from the Cusp Prospect confirm total rare
earth oxide (TREO) grades of 1.72% TREO, with a heavy rare earth distribution
exceeding 94%, and highlights exceptional niobium (4.51% Nb₂O₅) and
tantalum (0.91% Ta₂O₅) enrichment.

 

 SAMPLE   PROSPECT  TREO (%)  Dy(2)O(3) (%)  Tb(4)O(7) (%)  Nb(2)O(5) (%)  Ta(2)O5 (%)  HREO/TREO (%)
 HRMS001  CUSP      1.72      0.19           0.03           4.51           0.91         94.8

 Table 1: Cusp bulk sample results (Source: Intertek Assay Results(2) refer to
 Appendix C).

 

The rare earth sample distribution from the Cusp bulk sample is consistently
enriched in dysprosium (11.23%, Dy(2)O(3)) and terbium (1.86%, Tb(4)O(7)),
with a rare earth basket that comprises over 94.8% heavy rare earth minerals
(Figure 1). The combined dysprosium and terbium distribution at the Cusp
Prospect makes up 13.09% of the TREO basket mix.

 

 

 

 Figure 1:  REO distribution of Cusp Prospect bulk sample - enriched in
 dysprosium and terbium

 

The 25kg bulk sample was collected from the Cusp Prospect within the Harts
Range Project (Figure 2 and 3). The sample was taken from the outcrop which
comprised of mineralised pegmatite containing samarskite which was
identifiable by weight and colour (and subsequently laboratory assays),
enabling efficient bulk sample collection.

 Figure 2: Cusp Prospect rock chip and bulk sample location map (Source: NFM
 Team)2

 

 SAMPLE  PROSPECT  TREO%  Dy2O3%  Tb4O7%  Nb2O5%  Ta2O5%  HREO: TREO
 HR419   CUSP      11.91  1.19    0.21    22.89   11.39   79.27
 HR420   CUSP      0.35   0.04    0.01    1.57    0.11    83.45
 HR421   CUSP      14.87  1.78    0.29    32.47   6.74    83.14
 HR480   CUSP      16.61  1.94    0.31    30.04   8.60    85.75
 HR481   CUSP      7.32   0.84    0.12    23.32   13.43   88.79
 HR482   CUSP      17.83  2.16    0.34    33.19   7.19    85.81
 HR483   CUSP      16.80  2.00    0.32    32.90   8.05    85.40
 HR484   CUSP      0.11   0.01    0.00    1.37    0.09    77.61
 HR485   CUSP      16.59  2.01    0.32    32.04   7.18    85.14
 HR486   CUSP      15.61  1.87    0.30    29.47   5.39    85.12
 HR487   CUSP      17.17  2.04    0.32    28.61   6.39    86.37
 HR488   CUSP      16.30  1.97    0.31    27.75   5.69    85.49
 HR490   CUSP      15.04  1.71    0.28    25.75   7.71    85.04
 HRS003  CUSP      11.86  1.29    0.21    29.80   6.26    83.03
 HRS004  CUSP      9.97   1.13    0.18    25.46   4.77    85.66
 HRS011  CUSP      14.15  1.68    0.26    31.48   5.81    85.73
 HRS012  CUSP      12.74  1.25    0.17    19.73   9.13    89.60

 Table 2: Cusp Prospect sample results (Source: NFM Team)2

 

 Figure 3: Cusp Prospect 25kg bulk sample (Source: NFM Team)

 

NEXT STEPS

Over the coming weeks and months, New Frontier Minerals will:

 

·      Assess both conventional and novel processing options for this
HRE-enriched material, with the aim of accelerating the pathway to
commercialisation and enabling future offtake discussions with global magnet
supply chain participants

·      Continue field investigations to define priority drilling targets
at the Cusp, Bobs, Paddington, Westminster, Old Trafford and Headingly
Prospects.

·      Advance regulatory approvals and finalise contractor arrangements
to commence the maiden Reverse Circulation (RC) drilling campaign in Q3 FY25.

 

New Frontier remains committed to delivering value to shareholders through
disciplined exploration and development of its key assets.

 

 

ENDS

 

This announcement was approved for release by the Board of New Frontier
Minerals Limited.

 

 

REFERENCES

1.     CCZ ASX Release - 6 November 2024 (High grade Nb and U assays
validate Harts Range Project)

2.     NFM ASX Release - 12 May 2025 (Sampling returns 10.61% TREO with
23.56% Nb2O5 and 15.67% Ta2O5at Harts Range)

3.     Intertek Assay Results - 21 August 2025 (Job Code: 2375.0/2514907)

 

For further information please contact

 

 New Frontier Minerals Limited      +61 8 6558 0886 
 Gerrard Hall (UK), Chairman 

 S. P. Angel Corporate Finance LLP  +44 (0)1483 413500 

 (Corporate Broker) 
 Ewan Leggat                        +44 (0) 20 7409 3494

 St Brides Partners Ltd             +44 (0)20 7236 1177

 (Financial PR)  
 Ana Ribeiro and Charlotte Page

 

About New Frontier Minerals

New Frontier Minerals Limited is an Australian-based focussed explorer, with a
strategy to develop multi-commodity assets that demonstrate future potential
as an economic mining operation. Through the application of disciplined and
structured exploration, New Frontier has identified assets deemed core and is
actively progressing these interests up the value curve. Current focus will be
on advancing exploration activity at the Harts Range Niobium, Uranium and
Heavy Rare Earths Project which is circa 140km north-east from Alice Springs
in the Northern Territory.

 

Other interests include the NWQ Copper Project, situated in the copper-belt
district circa 150km north of Mt Isa in Queensland and the Broken Hill Project
in western New South Wales.

 

New Frontier Minerals is listed on the LSE and ASX under the ticker "NFM".

 

Competent Persons Statement

The scientific and technical information in this announcement, which relates
to exploration results and the geology of the deposits described, is based on
information compiled and approved for release by Mark Biggs. Mark Biggs is a
Member of The Australasian Institute of Mining and Metallurgy (AusIMM Member #
107188) and meets the requirements of a Competent Person as defined by the
2012 Edition of the Australasian Code for Reporting of Exploration Results,
Mineral Resources and Ore Reserves (JORC Code 2012 Edition). Mark Biggs has 35
years of experience relevant to Rare Earth Elements (REE), industrial mineral
copper mineralisation types, as well as expertise in the quality and potential
mining methods of the deposits under consideration. Additionally, he has 25
years of experience in the estimation, assessment, and evaluation of
exploration results and mineral resource estimates, which are the activities
for which he accepts responsibility. He also successfully completed an AusIMM
Online Course Certificate in 2012 JORC Code Reporting. Mark Biggs is a
consultant with ROM Resources and was engaged by New Frontier Minerals Limited
to prepare the documentation for several prospects, specifically those within
the Harts Range Prospects upon which the Report is based. Mr Biggs consents to
the inclusion in this announcement of the matters based on his information and
supporting documents in the form and context in which it appears.

 

Furthermore, the full nature of the relationship between himself and New
Frontier Minerals Limited has been disclosed, including any potential
conflicts of interest. Mark Biggs is a director of ROM Resources, a company
that is a shareholder of New Frontier Minerals Limited, and ROM Resources
provides occasional geological consultancy services to New Frontier Minerals
Limited.

 

The Report or excerpts referenced in this statement have been reviewed,
ensuring that they are based on and accurately reflect, in both form and
context, the supporting documentation relating to exploration results and any
mineral resource estimates. The release of the Report and this statement has
been consented to by the Directors of New Frontier Minerals Limited.

 

Forward Looking Statements

Certain information in this document refers to the intentions of New Frontier
Minerals Ltd, but these are not intended to be forecasts, forward-looking
statements, or statements about future matters for the purposes of the
Corporations Act or any other applicable law. The occurrence of events in the
future is subject to risks, uncertainties and other factors that may cause New
Frontier Minerals Ltd's actual results, performance, or achievements to differ
from those referred to in this announcement. Accordingly, New Frontier
Minerals Ltd, its directors, officers, employees, and agents, do not give any
assurance or guarantee that the occurrence of the events referred to in this
announcement will occur as contemplated. The interpretations and conclusions
reached in this announcement are based on current geological theory and the
best evidence available to the authors at the time of writing. It is the
nature of all scientific conclusions that they are founded on an assessment of
probabilities and, however high these probabilities might be, they make no
claim for complete certainty. Any economic decisions that might be taken based
on interpretations or conclusions contained in this announcement will
therefore carry an element of risk. The announcement may contain
forward-looking statements that involve several risks and uncertainties. These
risks include but are not limited to, economic conditions, stock market
fluctuations, commodity demand and price movements, access to infrastructure,
timing of approvals, regulatory risks, operational risks, reliance on key
personnel, Ore Reserve and Mineral Resource estimates, native title, foreign
currency fluctuations, exploration risks, mining development, construction,
and commissioning risk. These forward-looking statements are expressed in good
faith and believed to have a reasonable basis. These statements reflect
current expectations, intentions or strategies regarding the future and
assumptions based on currently available information. Should one or more of
the risks or uncertainties materialise, or should underlying assumptions prove
incorrect, actual results may vary from the expectations, intentions and
strategies described in this announcement. No obligation is assumed to update
forward-looking statements if these beliefs, opinions, and estimates should
change or to reflect other future developments.

 

Accompanying appendices and JORC table is available by clicking or pasting the
following link into your website browser:

http://www.rns-pdf.londonstockexchange.com/rns/5183W_1-2025-8-24.pdf
(http://www.rns-pdf.londonstockexchange.com/rns/5183W_1-2025-8-24.pdf)

 

 

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