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ENCOUNTER RESOURCES LIMITED — Capital/Financing Update 2026
Feb 17, 2026
64856_rns_2026-02-17_30a0a3c1-88ff-4f1b-8e6d-4419951bdbba.pdf
Capital/Financing Update
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ASX Announcement ASX Announcement
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18 February 2026 XX September 2025
High-Grade Niobium Extends Over 4km at Green
Encounter Resources Limited (ASX: ENR) (“Encounter” or “the Company”) is pleased to report additional high-grade niobium and REE intersections from aircore and diamond drilling at the Green prospect at the Aileron project in the West Arunta region of WA.
Key Highlights:
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Diamond drilling returns thick, high-grade niobium including:
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42m @ 2.2% Nb ₂ O ₅ from 35m, including 6m @ 5.1% Nb ₂ O ₅ from 40m (EAL1373)
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33.6m @ 2.1% Nb ₂ O ₅ from 43m, including 5.1m @ 3.9% Nb ₂ O ₅ from 61.9m (EAL1414)
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Holes were drilled to collect further samples for metallurgical test work for potential starter pit locations at Green
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Aircore drilling intersects further high-grade niobium east of the initial Green MRE incl.:
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5m @ 2.3% Nb ₂ O ₅ from 71m , part of 70m @ 0.8% Nb ₂ O ₅ from 67m (EAL1390)
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7m @ 1.3% Nb ₂ O ₅ from 83m , part of 85m @ 0.5% Nb ₂ O ₅ from 65m (EAL1402)
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18m @ 1.3% Nb ₂ O ₅ & 1.0% TREO from 58m , part of 42m @ 0.8% Nb ₂ O ₅ & 0.6% TREO from 58m (EAL1407)
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Step out drilling extends high grade mineralisation up to 1,000m east of the current MRE – high-grade extent of Green is now over 4km of strike
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Drilling at the eastern side of Green continues to intersect REE-dominant mineralisation including:
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10m @ 1.4% TREO from 50m , part of 27m @ 0.9% TREO from 49m (EAL1408)
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5m @ 1.6% TREO from 52m , part of 14m @ 0.7% TREO from 52m (EAL1405)
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The first phase of specific REE targeted drilling will be completed in 2026
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MRE update on track for release in Q2 2026 with infill drilling commencing April 2026 targeting the high-grade mineralisation to support project development studies
Executive Chairman, Will Robinson, comments:
"High-grade niobium mineralisation has now been intersected on twenty drill sections at Green with the body of mineralisation extending over 4km in strike. The initial MRE at Green, released in May 2025, covered the western part of the system based on drilling completed before December 2024. An updated MRE is planned in the coming months incorporating the 2025 drilling.
In parallel, metallurgical test work at Green is progressing well, focusing on south-west and central areas where drilling has already shown consistent, thick high-grade zones of mineralisation. At the same time, studies are advancing to accelerate project development plans.
The additional new REE results continue to support the potential for significant value-adding to the Green niobium deposit from these critical minerals.
The drilling at Green is still very broad, with drill sections 200m apart. The next phase of drilling at Green will close the drill spacing the define the highest-grade parts of the system. Field activity is commencing in the coming weeks with infill drilling at Green to be underway at the start of April 2026.”
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Infill and Extension Drilling at Green
In May 2025, the Company announced an initial Inferred Mineral Resource Estimate (MRE) of 19.2Mt @ 1.74% Nb ₂ O ₅ (above a 1.0% Nb ₂ O ₅ cut-off) across the Green, Emily and Crean deposits [1] . Green represents the largest component of the Aileron MRE, containing 12.1Mt @ 1.63% Nb ₂ O ₅ (above a 1.0% Nb ₂ O ₅ cut-off).
The latest assay results at Green include diamond drilling for metallurgical samples within the MRE, and extensional aircore drilling outside of the MRE to the east.
Extensional drilling results from the deeply weathered carbonatite complex up to 1,000m east of the Green MRE include:
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5m @ 2.3% Nb ₂ O ₅ from 71m , part of 70m @ 0.8% Nb ₂ O ₅ from 67m (EAL1390)
-
7m @ 1.3% Nb ₂ O ₅ from 83m , part of 85m @ 0.5% Nb ₂ O ₅ from 65m (EAL1402)
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18m @ 1.3% Nb ₂ O ₅ & 1.0% TREO from 58m , part of 42m @ 0.8% Nb ₂ O ₅ & 0.6% TREO from 58m (EAL1407)
Prior step-out drilling at Green East has included[2,3] :
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18m @ 2.0% Nb ₂ O ₅ from 54m, part of 50m @ 0.9% Nb ₂ O ₅ from 54m to end of hole (EAL1318)
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4m @ 2.0% Nb ₂ O ₅ from 64m, part of 26m @ 0.6% Nb ₂ O ₅ from 52m to 78m (EAL543)
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6m @ 1.8% Nb ₂ O ₅ from 82m, part of 93m @ 0.5% Nb ₂ O ₅ from 38m to end of hole (EAL1295)
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8m @ 2.2% Nb ₂ O ₅ from 46m , part of 18m @ 1.3% Nb ₂ O ₅ from 45m (EAL1399)
Diamond drilling for metallurgical samples to support an expanded test work program also returned thick, high-grade intersections:
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42m @ 2.2% Nb ₂ O ₅ from 35m, including 6m @ 5.1% Nb ₂ O ₅ from 40m (EAL1373)
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33.6m @ 2.1% Nb ₂ O ₅ from 43m, including 5.1m @ 3.9% Nb ₂ O ₅ from 61.9m (EAL1414)
These results build on a strong pipeline of prior high-grade infill intersections reported during 2025, such as[4,5] :
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85m @ 3.1% Nb ₂ O ₅ from 48m, part of 124m @ 2.4% Nb ₂ O ₅ from 45m (EAL961B)
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26m @ 3.4% Nb ₂ O ₅ from 78m part of 112m @ 1.5% Nb ₂ O ₅ from 56m to end of hole (EAL947A)
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11m @ 5.5% Nb ₂ O ₅ from 74m, part of 59m @ 1.8% Nb ₂ O ₅ from 73m to end of hole (EAL948)
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26m @ 2.5% Nb ₂ O ₅ from 51m, part of 85m @ 1.4% Nb ₂ O ₅ from 38m (EAL940)
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18m @ 2.7% Nb ₂ O ₅ from 42m, part of 84m @ 1.2% Nb ₂ O ₅ from 42m to end of hole (EAL955)
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19m @ 2.2% Nb ₂ O ₅ from 48m part of 90m @ 1.4% Nb ₂ O ₅ from 35m (EAL958)
The results from the Company’s 2025 drill program will now be incorporated into an updated MRE which is targeted for Q2 2026.
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Figure 1 – Green Prospect – Niobium - AEM Layered Earth Inversion (LEI) DS55 showing arcuate conductive feature coincident with the outline of the weathered carbonatite complex (from geological logging) and MRE[2,3,4,5,6,7,8,9,10,11,12 ]
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Figure 2 – Green Prospect 441800E – Cross section A – A’[2]
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Rare Earths at Green
In the West Arunta, carbonatite complexes containing both niobium and REE have been identified over a distance of more than 40km, highlighting consistent enrichment processes across multiple mineralised systems.
On 16 October 2025, the Company announced the intersection of REE-rich fluorocarbonate minerals , including bastnaesite, parisite and synchisite in an untargeted metallurgical drill hole (EAL1370) at Green[12] . This hole was drilled into the interpreted southern basal margin of the Green carbonatite complex.
The potential significance of this setting is underscored by analogy with the Mountain Pass deposit in the United States (owned by MP Materials) where a strike-extensive carbonatite, hosting highgrade bastnaesite-dominant REE mineralisation, occurs along a similar carbonatite–country rock contact across approximately 1km of strike, with true widths ranging from 5 to 85m.
The latest broad-spaced aircore drilling at Green continued to identify zones of shallow, REEdominant intersections including:
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10m @ 1.4% TREO from 50m , part of 27m @ 0.9% TREO from 49m (EAL1408)
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5m @ 1.6% TREO from 52m , part of 14m @ 0.7% TREO from 52m (EAL1405)
-
18m @ 1.0% TREO from 58m , part of 42m @ 0.6% TREO from 58m (EAL1407)
These build on prior results from Green including[3] :
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46m @ 1.0% TREO from 43m, from 61m to end of hole (EAL1293)
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2m @ 3.9% TREO from 61m, part of 4m @ 2.8% TREO (EAL1294)
14m @ 1.5% TREO from 40m (EAL1362)
These latest results from shallow aircore drilling occur along strike from the REE-rich fluorocarbonate minerals intersected in diamond drilling completed in September 2025.
The margins of the Green Carbonatite Complex are emerging as highly prospective target zones for high-grade REE mineralisation in the West Arunta .
Forward Plan
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MRE update on schedule for Q2 2026 incorporating infill and extensional drilling
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Infill drilling of high-grade mineralisation at Green commencing April 2026
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Systematic testing of high-priority regional targets beginning in Q2 2026
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Metallurgical testwork advancing, with flotation, refining and final product results expected in H1 2026
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Studies and environmental surveys are continuing to support project development plans
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Figure 3 – Aileron project – Prospect Location Plan - Magnetics (RTP)
Will Robinson Executive Chairman +61 8 9486 9455 [email protected]
Paul Berson Investor Relations - Corporate Storytime +61 421 647 445 [email protected]
The information in this report that relates to Exploration Results is based on information compiled by Mr Mark Brodie, who is a Member of the Australasian Institute of Mining and Metallurgy. Mr Brodie holds shares and options in and is a full time employee of Encounter Resources Ltd and has sufficient experience which is relevant to the style of mineralisation under consideration to qualify as a Competent Person as defined in the 2012 Edition of the 'Australian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves'. Mr Brodie consents to the inclusion in the report of the matters based on the information compiled by him, in the form and context in which it appears.
The Company confirms that it is not aware of any new information or data that materially affects the information in the relevant ASX releases and confirms that it is not aware of any new data or information that materially affects the information disclosed in this announcement and previously released by the Company in relation to mineral resource estimates. All material assumptions and technical parameters underpinning the mineral resource estimates in the relevant market announcements continue to apply and have not materially changed.
The Company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcements.
This announcement has been approved for release by the Board of Encounter Resources Limited.
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About Encounter
Encounter Resources Limited (ASX:ENR) is a leading Australian mineral exploration company focused on the discovery of major copper and niobium/rare earth element (REE) deposits.
The Company holds a commanding portfolio of 100%-owned projects located in some of Australia’s most prospective mineral belts, targeting copper and critical minerals. Key among these is the Aileron Project in the highly endowed West Arunta region of Western Australia, emerging as a significant frontier for critical mineral exploration.
Encounter’s strategy is centred on high-impact discovery in Tier 1 jurisdictions, leveraging strong technical capability and a proven track record of attracting leading industry partners.
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Table 1 – Aileron Project Inferred Mineral Resource Estimate[ 1]
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Table 2 – Tyrell Copper Oxide Mineral Resource Estimate[11]
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Notes
Table 1:
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The resource is constrained within optimised pit shells based on a price of US$45 per kilogram Nb (US$30/kg FeNb) and is reported above a 0.25% Nb2O5 cut-off grade.
-
The resource reported above a 1% Nb2O5 cut-off grade is a subset of the 0.25% Nb2O5 cut-off grade.
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All figures are rounded to reflect appropriate levels of confidence. Apparent differences may occur due to rounding.
Table 2
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The resource is constrained within an optimised pit shell based on a Cu price of A$17,000 per tonne and is reported above a 0.25% Cu cut-off grade.
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All tonnages reported are dry metric tonnes.
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1 ENR ASX announcement 14 May 2025
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2 ENR ASX announcement 17 December 2025
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3 ENR ASX announcement 27 October 2025
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4 ENR ASX announcement 1 September 2025
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5 ENR ASX announcement 6 October 2025
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6 ENR ASX announcement 27 October 2025
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7 ENR ASX announcement 22 January 2025
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8 WA1 Resources Ltd (ASX:WA1) announcement 30 June 2025
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9 ENR ASX announcement 21 November 2024
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10 ENR ASX announcement 13 December 2024
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11 ENR ASX announcement 26 September 2025
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12 ENR ASX announcement 16 October 2025
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13 ENR ASX announcement 17 November 2025
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| Hole ID | from (m) | to (m) | interval (m) | _Nb_2_O_5% | TREO % | Nd2O3+ Pr2O3 (ppm) |
_Tb_2O3+ _Dy_2O3(ppm) |
NdPr/ TREO |
DyTb/ TREO |
_P_2_O_5% | Prospect |
|---|---|---|---|---|---|---|---|---|---|---|---|
| EAL1373 | 35 | 77 | 42 | 2.22 | 0.93 | 2107 | 129 | 22.7 | 1.4 | 11.8 | GREEN |
| including | 36 | 46 | 10 | 3.92 | 1.14 | 2524 | 135 | 22.4 | 1.1 | 6.6 | GREEN |
| including^ | 40 |
46 | 6 | 5.13 | 1.60 | 3504 | 192 | 21.9 | 1.2 | 9.6 | GREEN |
| including | 47 | 48 | 1 | 1.96 | 2.29 | 5191 | 344 | 22.7 | 1.5 | 13.8 | GREEN |
| including | 51.4 | 75 | 23.6 | 1.99 | 0.78 | 1791 | 114 | 23.0 | 1.5 | 14.5 | GREEN |
| including^ | 68 |
72.7 | 4.7 | 3.70 | 1.08 | 2584 | 163 | 24.0 | 1.5 | 23.4 | GREEN |
| and | 78 | 85 | 7 | 0.21 | 0.14 | 312 | 13 | 23.0 | 1.0 | 3.8 | GREEN |
| and | 88.5 | 94.3 | 5.8 | 0.29 | 0.11 | 258 | 12 | 22.7 | 1.1 | 3.3 | GREEN |
| and | 99 | 100.05 | 1.05 |
0.46 | 0.37 | 961 | 50 | 26.0 | 1.3 | 18.2 | GREEN |
| and | 105.3 | 105.53 | 0.23 |
0.29 | 0.14 | 371 | 22 | 26.1 | 1.5 | 5.1 | GREEN |
| and | 107.05 | 107.43 | 0.38 |
0.23 | 0.11 | 263 | 13 | 23.3 | 1.2 | 3.7 | GREEN |
| and | 117 | 123.3 | 6.3 | 0.36 | 0.10 | 245 | 11 | 23.8 | 1.1 | 3.3 | GREEN |
| EAL1414 | 40 | 76.6 | 36.6 | 1.94 | 0.84 | 1898 | 126 | 22.6 | 1.4 | 15.0 | GREEN |
| including | 43 | 76.6 | 33.6 | 2.08 | 0.89 | 2010 | 136 | 22.6 | 1.5 | 16.2 | GREEN |
| including^ | 45 |
54 | 9 | 2.33 | 1.06 | 2417 | 155 | 23.0 | 1.4 | 13.6 | GREEN |
| including^ | 61.9 |
67 | 5.1 | 3.85 | 0.89 | 1977 | 147 | 22.4 | 1.7 | 23.7 | GREEN |
| and | 81.3 | 159.6 | 78.3 | 0.56 | 0.15 | 335 | 22 | 22.4 | 1.4 | 3.9 | GREEN |
| including | 81.3 | 88 | 6.7 | 1.61 | 0.33 | 743 | 50 | 22.4 | 1.5 | 8.2 | GREEN |
| including | 130.6 | 133.6 | 3 | 1.14 | 0.29 | 612 | 39 | 21.1 | 1.3 | 5.0 | GREEN |
| including | 138 | 139 | 1 | 1.12 | 0.19 | 416 | 28 | 22.3 | 1.5 | 4.4 | GREEN |
| including | 141 | 142 | 1 | 1.05 | 0.17 | 377 | 25 | 22.0 | 1.5 | 3.6 | GREEN |
| and | 164 | 165 | 1 | 0.35 | 0.10 | 235 | 12 | 23.0 | 1.1 | 3.0 | GREEN |
| and | 171 | 175 | 4 | 0.35 | 0.10 | 226 | 11 | 23.5 | 1.1 | 3.0 | GREEN |
| and | 179 | 182 | 3 | 0.32 | 0.10 | 239 | 11 | 23.4 | 1.1 | 3.5 | GREEN |
| and | 186 | 197 | 11 | 0.25 | 0.12 | 262 | 12 | 23.5 | 1.1 | 3.4 | GREEN |
| and | 199.2 | 268 | 68.8 | 0.29 | 0.10 | 215 | 9 | 22.9 | 1.0 | 3.5 | GREEN |
| and | 271 | 271.5 | 0.5 | 0.56 | 0.14 | 257 | 4 | 18.1 | 0.3 | 4.7 | GREEN |
| and | 278.7 | 280.5* | 1.8 |
0.31 | 0.05 | 122 | 5 | 23.8 | 1.0 | 3.2 | GREEN |
| EAL1371 | 136.7 | 142 | 5.3 | 0.49 | 0.15 | 345 | 20 | 23.4 | 1.3 | 2.8 | GREEN |
| and | 145.07 | 209.7 | 64.63 | 0.25 | 0.10 | 211 | 16 | 20.9 | 1.1 | 1.3 | GREEN |
| including^ | 191 |
191.35 | 0.35 |
0.04 | 2.01 | 3473 | 29 | 17.3 | 0.1 | 3.3 | GREEN |
| and | 216 | 217 | 1 | 0.36 | 0.15 | 329 | 21 | 21.6 | 1.4 | 2.7 | GREEN |
| and | 219 | 220 | 1 | 0.21 | 0.06 | 135 | 9 | 21.7 | 1.5 | 1.2 | GREEN |
| and | 224.45 | 235.35 | 10.9 |
0.49 | 0.12 | 251 | 18 | 22.0 | 1.4 | 2.8 | GREEN |
| including | 225 | 226 | 1 | 1.08 | 0.08 | 160 | 11 | 19.9 | 1.4 | 0.4 | GREEN |
| and | 239 | 271 | 32 | 0.54 | 0.13 | 305 | 18 | 22.8 | 1.4 | 3.0 | GREEN |
| including | 250 | 258.6 | 8.6 | 1.02 | 0.14 | 320 | 19 | 22.6 | 1.4 | 4.3 | GREEN |
| including | 264 | 265 | 1 | 1.12 | 0.13 | 296 | 17 | 22.6 | 1.3 | 4.2 | GREEN |
| EAL1371 | 275 | 282 | 7 | 0.34 | 0.12 | 276 | 18 | 22.9 | 1.5 | 2.7 | GREEN |
| and | 301.55 | 302 | 0.45 | 0.35 | 0.03 | 61 | 5 | 20.9 | 1.8 | 0.5 | GREEN |
| and | 308 | 321 | 13 | 0.22 | 0.07 | 146 | 12 | 21.6 | 1.6 | 1.3 | GREEN |
| and | 415 | 416 | 1 | 0.20 | 0.07 | 146 | 11 | 22.4 | 1.7 | 1.9 | GREEN |
| and | 426.45 | 431 | 4.55 | 0.19 | 0.10 | 222 | 21 | 22.1 | 1.6 | 1.4 | GREEN |
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| and | 438.38 | 439.58 | 1.2 |
0.36 | 0.15 | 325 | 22 | 21.9 | 1.5 | 2.5 | GREEN |
|---|---|---|---|---|---|---|---|---|---|---|---|
| and | 445.65 | 446.72 | 1.07 |
0.21 | 0.09 | 202 | 14 | 21.8 | 1.5 | 1.5 | GREEN |
| EAL1372 | 116.3 | 162* | 45.7 | 0.44 | 0.14 | 314 | 19 | 22.4 | 1.4 | 2.2 | GREEN |
| including | 129 | 131 | 2 | 1.08 | 0.14 | 341 | 25 | 23.9 | 1.7 | 4.5 | GREEN |
| including | 135.4 | 136 | 0.6 | 1.44 | 0.27 | 580 | 23 | 21.4 | 0.8 | 3.7 | GREEN |
| EAL1382 | NSA | GREEN | |||||||||
| EAL1389 | 43 | 68 | 25 | 0.25 | 0.24 | 519 | 37 | 21.7 | 1.7 | 1.0 | GREEN |
| and | 72 | 137 | 65 | 0.36 | 0.21 | 474 | 31 | 22.3 | 1.5 | 4.6 | GREEN |
| including | 123 | 125 | 2 | 1.06 | 0.62 | 1346 | 79 | 21.8 | 1.3 | 15.4 | GREEN |
| EAL1390 | 67 | 137 | 70 | 0.75 | 0.42 | 895 | 61 | 21.3 | 1.5 | 11.5 | GREEN |
| including | 71 | 76 | 5 | 2.25 | 1.61 | 3584 | 209 | 22.3 | 1.3 | 7.2 | GREEN |
| including | 101 | 105 | 4 | 1.12 | 0.41 | 864 | 56 | 21.1 | 1.4 | 8.7 | GREEN |
| including | 113 | 115 | 2 | 1.18 | 0.46 | 985 | 69 | 21.6 | 1.5 | 15.6 | GREEN |
| EAL1390 | 144 | 146 | 2 | 0.23 | 0.05 | 103 | 7 | 21.8 | 1.6 | 1.1 | GREEN |
| and | 150 | 164* | 14 | 0.50 | 0.21 | 453 | 30 | 21.8 | 1.5 | 6.5 | GREEN |
| EAL1391 | 43 | 147 | 104 | 0.34 | 0.18 | 382 | 27 | 21.2 | 1.6 | 1.2 | GREEN |
| including^ | 51 |
52 | 1 | 0.46 | 1.06 | 2234 | 110 | 21.1 | 1.0 | 3.0 | GREEN |
| and | 68 | 69 | 1 | 1.46 | 0.33 | 706 | 39 | 21.6 | 1.2 | 1.4 | GREEN |
| and | 155 | 175 | 20 | 0.29 | 0.11 | 238 | 17 | 21.5 | 1.6 | 1.8 | GREEN |
| EAL1392 | NSA | GREEN | |||||||||
| EAL1393 | 48 | 50 | 2 | 0.29 | 0.24 | 524 | 46 | 21.1 | 2.0 | 0.7 | GREEN |
| and | 54 | 57 | 3 | 0.23 | 0.95 | 2182 | 156 | 23.0 | 1.6 | 3.5 | GREEN |
| including^ | 60 |
66 | 6 | 0.19 | 1.24 | 2782 | 167 | 22.4 | 1.3 | 3.8 | GREEN |
| and | 72 | 73 | 1 | 0.24 | 0.77 | 1751 | 98 | 22.7 | 1.3 | 2.6 | GREEN |
| and | 82 | 84 | 2 | 0.25 | 0.45 | 1007 | 63 | 22.2 | 1.4 | 1.7 | GREEN |
| EAL1397 | 44 | 51 | 7 | 0.26 | 0.73 | 1652 | 103 | 22.5 | 1.4 | 3.9 | GREEN |
| including^ | 47 |
48 | 1 | 0.31 | 1.08 | 2431 | 124 | 22.6 | 1.1 | 5.0 | GREEN |
| and | 55 | 65 | 10 | 0.34 | 0.90 | 1973 | 138 | 21.9 | 1.5 | 4.6 | GREEN |
| including^ | 57 |
61 | 4 | 0.43 | 1.39 | 3034 | 215 | 21.8 | 1.5 | 4.5 | GREEN |
| and | 73 | 96 | 23 | 0.25 | 0.37 | 804 | 55 | 22.1 | 1.5 | 12.3 | GREEN |
| and | 101 | 113 | 12 | 0.53 | 0.22 | 514 | 30 | 23.0 | 1.4 | 7.8 | GREEN |
| including | 109 | 110 | 1 | 1.16 | 0.22 | 498 | 29 | 23 | 1.3 | 8.0 | GREEN |
| and | 123 | 126 | 3 | 0.39 | 0.29 | 658 | 41 | 23.0 | 1.4 | 10.1 | GREEN |
| EAL1402 | 65 | 150 | 85 | 0.54 | 0.24 | 516 | 31 | 22.0 | 1.4 | 1.6 | GREEN |
| including^ | 69 |
70 | 1 | 0.34 | 1.14 | 2176 | 59 | 19.1 | 0.5 | 1.7 | GREEN |
| including | 83 | 90 | 7 | 1.30 | 0.53 | 1162 | 58 | 21.7 | 1.1 | 1.3 | GREEN |
| including | 99 | 102 | 3 | 1.21 | 0.40 | 901 | 61 | 22.6 | 1.5 | 2.5 | GREEN |
| and | 160 | 180 | 20 | 0.38 | 0.30 | 679 | 48 | 22.6 | 1.6 | 6.6 | GREEN |
| and | 189 | 193* | 4 | 0.26 | 0.18 | 411 | 29 | 22.4 | 1.6 | 4.1 | GREEN |
| EAL1403 | 47 | 96 | 49 | 0.43 | 0.17 | 358 | 21 | 21.2 | 1.3 | 1.1 | GREEN |
| including | 48 | 49 | 1 | 1.33 | 0.58 | 1158 | 78 | 20.1 | 1.3 | 1.0 | GREEN |
| and | 117 | 136 | 19 | 0.21 | 0.42 | 938 | 58 | 22.2 | 1.4 | 8.5 | GREEN |
| and | 152 | 162* | 10 | 0.20 | 0.18 | 396 | 20 | 22.2 | 1.1 | 5.0 | GREEN |
| EAL1404 | 56 | 95 | 39 | 0.43 | 0.37 | 767 | 44 | 21.0 | 1.3 | 2.0 | GREEN |
| including | 57 | 59 | 2 | 1.07 | 1.61 | 3422 | 167 | 21.4 | 1.0 | 3.3 | GREEN |
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| including | 84 | 86 | 2 | 1.13 | 0.43 | 854 | 51 | 19.9 | 1.2 | 6.4 | GREEN |
|---|---|---|---|---|---|---|---|---|---|---|---|
| and | 102 | 105 | 3 | 0.64 | 0.17 | 335 | 21 | 20.2 | 1.3 | 2.6 | GREEN |
| EAL1405 | 52 | 66 | 14 | 0.36 | 0.67 | 1390 | 97 | 21.0 | 1.5 | 3.1 | GREEN |
| including^ | 52 |
57 | 5 | 0.41 | 1.61 | 3311 | 232 | 20.6 | 1.4 | 6.4 | GREEN |
| and | 85 | 87 | 2 | 0.26 | 0.05 | 104 | 8 | 21.1 | 1.6 | 0.9 | GREEN |
| including^ | 34 |
36 | 2 | 0.11 | 1.27 | 2843 | 161 | 22.4 | 1.3 | 5.4 | GREEN |
| and | 38 | 41 | 3 | 0.24 | 0.74 | 1623 | 98 | 21.9 | 1.4 | 3.4 | GREEN |
| including^ | 38 |
39 | 1 | 0.26 | 1.35 | 2905 | 176 | 21.6 | 1.3 | 5.9 | GREEN |
| and | 46 | 47 | 1 | 0.29 | 0.14 | 302 | 25 | 21.9 | 1.8 | 0.7 | GREEN |
| and | 69 | 77 | 8 | 0.33 | 0.44 | 944 | 63 | 21.7 | 1.6 | 2.1 | GREEN |
| including^ | 70 |
71 | 1 | 0.22 | 1.17 | 2518 | 156 | 21.5 | 1.3 | 5.1 | GREEN |
| EAL1407 | 58 | 100 | 42 | 0.77 | 0.64 | 1379 | 93 | 21.4 | 1.5 | 5.0 | GREEN |
| including | 58 | 76 | 18 | 1.32 | 0.99 | 2128 | 140 | 21.4 | 1.4 | 4.5 | GREEN |
| and | 105 | 109 | 4 | 0.20 | 0.36 | 781 | 52 | 21.6 | 1.4 | 7.0 | GREEN |
| and | 116 | 120* | 4 | 0.20 | 0.28 | 609 | 42 | 21.8 | 1.5 | 4.9 | GREEN |
| EAL1408 | 49 | 76 | 27 | 0.29 | 0.89 | 2063 | 126 | 23.4 | 1.5 | 5.5 | GREEN |
| including^ | 50 |
60 | 10 | 0.25 | 1.43 | 3336 | 186 | 23.3 | 1.3 | 4.0 | GREEN |
| and^ | 68 | 69 | 1 | 0.39 | 1.02 | 2390 | 163 | 23.5 | 1.6 | 7.3 | GREEN |
| and^ | 72 | 74 | 2 | 0.20 | 1.26 | 2843 | 188 | 22.6 | 1.5 | 16.7 | GREEN |
| and | 89 | 117* | 28 | 0.40 | 0.36 | 824 | 49 | 22.7 | 1.4 | 9.7 | GREEN |
| including | 105 | 107 | 2 | 1.03 | 0.37 | 844 | 47 | 23.0 | 1.3 | 10.6 | GREEN |
| EAL1409 | 57 | 61 | 4 | 0.28 | 0.36 | 843 | 45 | 23.9 | 1.2 | 0.8 | GREEN |
| and | 67 | 68 | 1 | 0.22 | 0.42 | 976 | 64 | 23.5 | 1.5 | 7.3 | GREEN |
| and | 76 | 77 | 1 | 0.16 | 0.28 | 644 | 42 | 22.8 | 1.5 | 8.4 | GREEN |
| and | 91 | 93 | 2 | 0.24 | 0.28 | 590 | 45 | 21.4 | 1.6 | 14.9 | GREEN |
| and | 96 | 97 | 1 | 0.11 | 0.12 | 272 | 21 | 22.6 | 1.7 | 6.5 | GREEN |
| and | 126 | 129 | 3 | 0.21 | 0.41 | 927 | 62 | 22.9 | 1.5 | 19.7 | GREEN |
| EAL1410 | 77 | 78 | 1 | 0.26 | 0.03 | 53 | 6 | 17.9 | 1.9 | 0.0 | GREEN |
| and | 87 | 88 | 1 | 0.21 | 0.24 | 495 | 39 | 21.0 | 1.7 | 0.6 | GREEN |
| EAL1411 | 106 | 107 | 1 | 0.27 | 0.09 | 199 | 3 | 22.7 | 0.4 | 1.2 | GREEN |
| EAL1412 | 39 | 51 | 12 | 0.50 | 0.05 | 125 | 8 | 24.0 | 1.6 | 0.6 | GREEN |
| including | 42 | 43 | 1 | 1.95 | 0.06 | 125 | 10 | 22.3 | 1.8 | 0.3 | GREEN |
| and | 56 | 60 | 4 | 0.30 | 0.03 | 65 | 4 | 22.8 | 1.3 | 0.5 | GREEN |
| and | 78 | 99* | 21 | 0.63 | 0.02 | 44 | 2 | 21.5 | 0.9 | 0.3 | GREEN |
| including | 87 | 92 | 5 | 2.01 | 0.03 | 48 | 1 | 18.3 | 0.4 | 0.1 | GREEN |
| EAL1415 | 30 | 32 | 2 | 0.31 | 0.14 | 272 | 14 | 19.4 | 1.1 | 0.4 | GREEN |
| EAL1416 | 30 | 58 | 28 | 0.45 | 0.13 | 284 | 20 | 22.2 | 1.6 | 0.7 | GREEN |
| and | 64 | 67 | 3 | 0.22 | 0.09 | 211 | 12 | 23.2 | 1.3 | 0.4 | GREEN |
| and | 86 | 126 | 40 | 0.32 | 0.11 | 254 | 17 | 22.3 | 1.5 | 1.9 | GREEN |
| EAL1417 | NSA | GREEN | |||||||||
| EAL1418 | NSA | GREEN | |||||||||
| EAL1423 | NSA | GREEN | |||||||||
| EAL1450 | 51 | 157 | 106 | 0.43 | 0.36 | 758 | 55 | 21.0 | 1.5 | 3.3 | GREEN |
| including^ | 78 |
80 | 2 | 0.39 | 1.16 | 2446 | 173 | 21.1 | 1.5 | 4.9 | GREEN |
| including | 126 | 129 | 3 | 1.15 | 0.59 | 1255 | 85 | 21.2 | 1.4 | 12.2 | GREEN |
==> picture [116 x 24] intentionally omitted <==
| including | 133 | 144 | 11 | 1.21 | 0.39 | 825 | 55 | 21.3 | 1.4 | 6.3 | GREEN |
|---|---|---|---|---|---|---|---|---|---|---|---|
| and | 165 | 166 | 1 | 0.26 | 0.20 | 466 | 31 | 23.8 | 1.6 | 4.1 | GREEN |
| and | 167 | 170 | 3 | 0.20 | 0.18 | 404 | 29 | 22.1 | 1.6 | 3.1 | GREEN |
| and | 173 | 174* | 1 | 0.25 | 0.22 | 482 | 41 | 21.8 | 1.8 | 5.8 | GREEN |
| EAL1451 | NSA | GREEN |
Table 3. Drillhole assay intersections above 0.2% Nb2O5. Intervals greater than 1% Nb2O5 have been reported as including intervals. ^Selected intervals greater than 2% Nb2O5 or 1% TREO have been itemised. * Denotes intersection to the end of hole.
| Hole_ID | Hole_Type | Grid_ID | MGA_North | MGA_East |
MGA_RL |
EOH Depth (m) | Dip |
Azimuth | Prospect |
|---|---|---|---|---|---|---|---|---|---|
| EAL1371 | DDH |
MGA94_52 | 7542574 | 440197 | 387 | 471.8 | -60 | 180 | Green |
| EAL1372 | DDH |
MGA94_52 | 7541423 | 438603 | 387 | 162.0 | -59 | 181 | Green |
| EAL1373 | DDH |
MGA94_52 | 7541619 | 439001 | 388 | 123.8 | -60 | 180 | Green |
| EAL1382 | AC |
MGA94_52 | 7542029 | 440403 | 388 | 150.0 | -61 | 181 | Green |
| EAL1389 | AC |
MGA94_52 | 7541979 | 441804 | 394 | 168.0 | -90 | 0 | Green |
| EAL1390 | AC |
MGA94_52 | 7542140 | 441800 | 391 | 164.0 | -90 | 0 | Green |
| EAL1391 | AC |
MGA94_52 | 7541893 | 442201 | 394 | 180.0 | -90 | 0 | Green |
| EAL1392 | AC |
MGA94_52 | 7541742 | 442601 | 396 | 135.0 | -90 | 0 | Green |
| EAL1393 | AC |
MGA94_52 | 7541895 | 443001 | 392 | 140.0 | -90 | 0 | Green |
| EAL1397 | AC |
MGA94_52 | 7542181 | 441606 | 391 | 138.0 | -90 | 0 | Green |
| EAL1402 | AC |
MGA94_52 | 7542020 | 442002 | 391 | 193.0 | -90 | 0 | Green |
| EAL1403 | AC |
MGA94_52 | 7542105 | 442003 | 392 | 162.0 | -90 | 0 | Green |
| EAL1404 | AC |
MGA94_52 | 7542178 | 442000 | 392 | 117.0 | -90 | 0 | Green |
| EAL1405 | AC |
MGA94_52 | 7542268 | 442004 | 392 | 126.0 | -90 | 0 | Green |
| EAL1406 | AC |
MGA94_52 | 7542343 | 442004 | 392 | 126.0 | -90 | 0 | Green |
| EAL1407 | AC |
MGA94_52 | 7541927 | 442402 | 394 | 120.0 | -90 | 0 | Green |
| EAL1408 | AC |
MGA94_52 | 7542014 | 442403 | 391 | 117.0 | -90 | 0 | Green |
| EAL1409 | AC |
MGA94_52 | 7542087 | 442400 | 392 | 147.0 | -90 | 0 | Green |
| EAL1410 | AC |
MGA94_52 | 7542166 | 442400 | 392 | 177.0 | -90 | 0 | Green |
| EAL1411 | AC |
MGA94_52 | 7542278 | 440399 | 389 | 111.0 | -61 | 179 | Green |
| EAL1412 | AC |
MGA94_52 | 7542353 | 440399 | 389 | 99.0 | -60 | 182 | Green |
| EAL1414 | DDH |
MGA94_52 | 7541542 | 438801 | 385 | 280.5 | -60 | 180 | Green |
| EAL1415 | AC |
MGA94_52 | 7541701 | 438799 | 389 | 96.0 | -90 | 0 | Green |
| EAL1416 | AC |
MGA94_52 | 7541774 | 438799 | 389 | 138.0 | -90 | 0 | Green |
| EAL1417 | AC |
MGA94_52 | 7541854 | 438798 | 388 | 102.0 | -90 | 0 | Green |
| EAL1418 | AC |
MGA94_52 | 7541935 | 438801 | 388 | 78.0 | -90 | 0 | Green |
| EAL1423 | AC |
MGA94_52 | 7542158 | 439203 | 392 | 99.0 | -90 | 0 | Green |
| EAL1450 | AC |
MGA94_52 | 7541860 | 442394 | 393 | 174.0 | -90 | 0 | Green |
| EAL1451 | AC |
MGA94_52 | 7541772 | 442394 | 393 | 174.0 | -90 | 0 | Green |
Table 4. Drillhole collar table.
==> picture [116 x 24] intentionally omitted <==
SECTION 1 SAMPLING TECHNIQUES AND DATA
| Criteria | JORC Code explanation Commentary |
|---|---|
| Sampling techniques |
Nature and quality of sampling (e.g. cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sounds, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling. Reported Aircore (AC) and Diamond (DD) drilling has been completed at Green to obtain samples for geological logging, metallurgical testwork and assaying. All samples underwent routine pXRF analysis using a Bruker S1 TITAN to aid in logging and identifying zones of interest. No pXRF data is being reported. |
| Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used All samples are considered to be representative. AC drilling has been completed with Wallis’ proprietary, dual tube, patented Air-Core bit (AC) drilling method. Diamond drill core was sampled as whole core samples of PQ, or half core samples of HQ or NQ sized core. Drill hole collar locations were recorded by handheld GPS, which has an estimated accuracy of ± 5m. |
|
| Aspects of the determination of mineralisation that are Material to the Public Report. In cases where ‘industry standard’ work has been done this would be relatively simple (e.g. ‘reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay’). In other cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (e.g. submarine nodules) may warrant disclosure of detailed information Wallis’ proprietary, dual tube, patented Air-Core bit (AC) drilling method was used to obtain a bulk samples (each approximately 8-10kg) every 1m interval downhole. Bulk material from each 1m interval was captured in a green mining bag or a 450mm x 750mm calico bag. The 1m bulk sample was submitted to ALS Laboratories in Adelaide or Perth where it was dried, crushed (-2mm) and a representative split was obtained for analysis. Diamond drill core was sampled as whole core samples of PQ, or half core samples of HQ or NQ sized core. Samples were marked up at nominal 1m intervals and samples were constrained to within geological boundaries. To ensure representivity PQ drillcore was sampled as whole core, which was crushed (- 3.35mm) and a representative split was taken at the lab for analysis. Below the top of fresh rock HQ or NQ core was half core cut and sampled. Samples were analysed using ALS method ME- MS81hD with overlimit determination via ME- XRF30 if required. ME-MS81hD reports high grade REE elements by lithium meta-borate fusion and ICP-MS. This method produces quantitative results of all elements, including those encapsulated in resistive minerals |
==> picture [116 x 24] intentionally omitted <==
| Drilling techniques |
Drill type (e.g. core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (e.g. core diameter, triple or standard tube, depth of diamond tails, face- sampling bit or other type, whether core is oriented and if so, by what method, etc). Results are reported from AC and DD drilling at Green. AC holes were drilled at diameter of 83mm by the Wallis’ proprietary, dual tube, patented Air-Core bit (AC) drilling method DD holes were drilled by DDH1 using PQ3 equipment to the top of fresh rock and then with HQ and NQ diameter equipment. Method of recording and assessing core and chip sample recoveries and results assessed Sample recoveries were estimated as a percentage and recorded by Encounter field staff. Diamond core recoveries were recorded each drill run by drill crews and validated by Encounter Geologists. There were small sections of lost core noted by the diamond drillers and this was validated and recorded by Encounter staff. Measures taken to maximise sample recovery and ensure representative nature of the samples Drillers used appropriate measures to minimise down-hole contamination in AC drilling. If any contamination of the sample was suspected this was noted by Encounter field staff as a percentage. PQ diamond core was drilled using triple tube to ensure maximum core recovery. Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material. A project wide review of sample recoveries, grade, sampling methods and twinned drillholes has determined that there is no relationship between sample recovery and grade. |
|
|---|---|---|
| Drill sample recovery |
||
| Logging | Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies. Encounter geologists have completed geological logs where assays are reported. All reported holes have been logged in full with lithology, alteration and mineralisation recorded. Geological logging is routinely reviewed using multi element geochemistry to verify geological observations. |
|
| Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography. Geological logging is qualitative in nature and records interpreted lithology, alteration, mineralisation and other geological features of the samples. |
||
| The total length and percentage of the relevant intersections logged Encounter geologists have completed geological logs on all holes reported in this announcement |
||
| Sub- sampling techniques and sample preparation |
If core, whether cut or sawn and whether quarter, half or all core taken. PQ diamond drill core was sampled by ALS laboratories as whole core, which was crushed (-3.35mm) and a representative split was taken for pulverisation and multi element analysis. HQ and NQ core was cut in half by Encounter staff or contractors and sampled as half core which was crushed (-2mm) and a representative split was taken for pulverisation and multi element analysis. |
==> picture [116 x 24] intentionally omitted <==
| Wallis’ proprietary, dual tube, patented Air-Core bit (AC) | |
|---|---|
| drilling method was used to obtain a bulk sample (each | |
| approximately 8-10kg) every 1m interval downhole. | |
| AC bulk material from each 1m interval was captured in a | |
| If non-core, whether riffled, tube | green mining bag or a 450mm x 750mm calico bag. The |
| sampled, rotary split, etc and whether | 1m bulk sample was submitted to ALS Laboratories in |
| sampled wet or dry. | Adelaide or Perth where it was dried, crushed (-2mm) and |
| a representative split was obtained (post crushing) for | |
| pulverisation and multi element analysis. | |
| Samples were recorded as being dry, moist or wet by | |
| Encounter field staff. | |
| Sample preparation was completed at ALS Laboratories | |
| in Perth or Adelaide. | |
| AC bulk samples were dried, crushed and a split was | |
| taken (post crushing) to create a representative | |
| subsample for pulverisation and analyses. | |
| PQ diamond drillcore was sampled by ALS laboratories as | |
| For all sample types, the nature, quality and appropriateness of the sample preparation technique. |
whole core, which was crushed (-3.35mm) and a representative split was taken for pulverisation and multi element analysis. |
| HQ and NQ core was cut in half by Encounter staff or | |
| contractors and sampled as half core which was crushed | |
| (-2mm) and a representative split was taken for | |
| pulverisation and multi element analysis. | |
| This is considered a high quality representative sampling | |
| methodology and an appropriate sample preparation for | |
| the drilling types and analysis undertaken. | |
| Encounter’s QC procedures involve the use of commercial | |
| certified reference materials (CRMs) and blanks. | |
| In all drilling the insertion rate of CRMs is at a rate of 1:50 | |
| Quality control procedures adopted for | In both AC and DD drilling blanks are inserted and |
| all sub-sampling stages to maximise | laboratory quartz flush samples are requested within and |
| representivity of samples. | at the end of mineralised zones as determined by the site |
| geologist based on geological observations and pXRF | |
| readings. | |
| Outside of mineralised zones blanks are inserted at a rate | |
| of 1:100. | |
| No field duplicates were taken from bulk AC samples. | |
| Coarse split duplicates were collected by ALS from | |
| crushed AC bulk samples at a rate of approximately 1:50, | |
| including within mineralised zones as instructed by the | |
| Measures taken to ensure that the | site geologist based on geological observations and pXRF |
| sampling is representative of the in | readings. |
| situ material collected, including for | |
| instance results for field | No coarse split duplicates were taken from the whole core |
| duplicate/second-half sampling. | sampled diamond drillcore. |
| No second half or quarter core duplicates were taken from | |
| cut core. | |
| The results from duplicates are assessed on a periodical | |
| basis. |
==> picture [116 x 24] intentionally omitted <==
| Whether sample sizes are appropriate to the grain size of the material being sampled. The sample sizes, sub-sampling techniques and sample preparation are considered to be appropriate for the material being sampled. The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total. All samples were submitted to ALS Laboratories in Perth for analysis. Assays have been reported from ALS ME-MS81hD (package of methods ME-MS81h + MEICP06). ALS method ME-MS81h reports high-grade rare earth elements via fusion with lithium borate flux followed by acid dissolution of the fused bead coupled with ICP-MS analysis. It provides a quantitative analytical approach for a broad suite of trace elements. This method is considered a complete digestion allowing resistive mineral phases to be liberated. Elements reported: Ba, Ce Cr, Cs, Dy, Er, Eu, Ga, Gd, Hf, Ho, La, Lu, Nb, Nd, Pr, Rb, Sc, Sm, Sn, Sr, Ta, Tb, Th, Ti, Tm, U, V, W, Y, Yb, Zr. Additionally whole rock oxides are reported by method ME-ICP06 by analysing the same digested solution by ICP-AES and include LOI. Oxides reported: Al2O3, BaO, CaO, Cr2O3, Fe2O3, K2O, MgO, MnO, Na2O, P2O5, SiO2, SrO, TiO2, LOI Niobium overlimit determination (>50,000ppm Nb) completed via ALS method ME-XRF30. Assays have been reported from MEXRF30 when completed. For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their derivation, etc. Samples underwent routine pXRF analysis at 1m intervals using a Bruker S1 TITAN to aid in geological logging and identifying zones of interest. All pXRF readings were taken in GeoExploration mode with a 30 second 3 beam reading. OREAS supplied standard reference materials were used to calibrate the pXRF instrument. No pXRF results are being reported. Nature of quality control procedures adopted (e.g. standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (i.e. lack of bias) and precision have been established. Encounter’s QC procedures involve the use of commercial certified reference materials (CRMs) and blanks. In all drilling the insertion rate of CRMs is at a rate of 1:50 In AC and DD drilling blanks and laboratory quartz flush samples are inserted within and at the end of mineralised zones as determined by the site geologist based on geological observations and pXRF readings. Outside of mineralised zones blanks are inserted at a rate of 1:100. ALS Laboratory QAQC involves the use of internal lab standards using certified reference material and blanks as part of in-house laboratory procedures. A formal review of QC data is completed on a periodic basis. |
|
|---|---|
| Quality of assay data and laboratory tests |
|
| Verification of sampling and assaying The verification of significant intersections by either independent or alternative company personnel. Geological observations included in this report have been verified by Sarah James (Principal Geologist) |
==> picture [116 x 24] intentionally omitted <==
| The use of twinned holes. Diamond holes EAL1371, EAL1372, EAL1373 and EAL1414 were drilled as twin holes for verifying AC/RC/DD drilling and sampling methodologies and to provide material for metallurgical testwork EAL1371 (DD) was collared approximately 7.5m to the SSE of EAL917 (RC). EAL1371 assay results are reported for 136.7m to EOH. Sampling of EAL1371 between 0- 136.7m is still in progress. EAL1372 (DD) was collared approximately 6m to the NE of EAL894 (RC). EAL1372 assay results are reported for 115.37m to EOH. Sampling of EAL1372 between 0- 115.37m is not yet complete. EAL1373 (DD) was collared approximately 3m to the E of EAL901 (RC). EAL1373 assay results are reported for 0m to EOH. EAL1414 (DD) was collared approximately 5m to the NE of EAL899 (RC), approximately 5.5m to the SE of EAL940 (DD), and approximately 11m to the SSE of EAL1375 (AC). EAL1414 assay results are reported for 0m to EOH. |
|
|---|---|
| Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols. Primary logging and sampling data is collected for drillholes on toughbook computers using Maxwell Geoservice’s LogChief software and using excel templates (physical and electronic). Data is sent offsite by email to be loaded or direct synced to Encounter’s SQL Database (Datashed software), which is backed up daily. |
|
| Discuss any adjustment to assay data. Standard stoichiometric calculations have been applied to convert element ppm data to relevant oxides. Industry standard calculation for TREO as follows La2O3+ CeO2+ Pr2O3+ Nd2O3+ Sm2O3+ Eu2O3+ Gd2O3+ Tb2O3+ Dy2O3 + Ho2O3+ Er2O3+ Tm2O3+ Yb2O3+ Y2O3+ Lu2O3 Conversion factors La2O3 1.1728 CeO2 1.2284 Pr2O3 1.1703 Nd2O3 1.1664 Sm2O31.1596 Eu2O3 1.1579 Gd2O3 1.1526 Tb2O3 1.151 Dy2O3 1.1477 Ho2O3 1.1455 Er2O3 1.1435 Tm2O31.1421 Yb2O3 1.1387 Y2O3 1.2699 Lu2O3 1.1371 Nb2O5 1.4305 |
|
| Location of data points |
Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation. Drill hole collar locations are determined using a handheld GPS. Downhole surveys were completed on all angled AC holes. No surveys were undertaken on vertical AC holes. Down hole surveys were collected during diamond drilling at approximately 30m intervals downhole. |
==> picture [116 x 24] intentionally omitted <==
| Specification of the grid system used. Horizontal Datum: Geocentric Datum of Australia1994 (GDA94) Map Grid of Australia 1994 (MGA94) Zone 52 |
|
|---|---|
| Quality and adequacy of topographic control. RLs were assigned using a DTM created during the detailed aeromagnetic survey. |
|
| Data spacing and distribution |
Data spacing for reporting of Exploration Results. Drillhole spacing in the extensional drilling area Green is approximately 80m spaced on section with drill traverses 200m apart. |
| Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied. Many drill results from Green in this announcement are extensional drilling outside of the existing Mineral Resource Estimate area. Drill data and spacing of extensional drilling at Green will be reviewed to determine if geological and grade continuity is appropriate for Mineral Resource estimation. |
|
| Whether sample compositing has been applied. Intervals have been composited using a length weighted methodology. |
|
| Orientation of data in relation to geological structure |
Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type. Carbonatite intrusions have exploited interpreted structural corridors including the Weddell Fault at Green. The orientation of oxide-enriched mineralisation is sub- horizontal and derives from primary fresh carbonatites by deflationary and regolith processes. The orientation of carbonatite intrusions at Green follow approximate ENE-WSW strike with a gentle curve towards E-W. The dip of the primary carbonatites below the top of fresh rock at Green is poorly constrained due to the limited number of drillholes that have sufficiently tested at depth. Initial observations suggest these fresh rock intrusions are sub vertical in orientation. |
| If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material. The relationship between drilling orientation and the orientation of oxide-enriched mineralisation is not considered to have introduce any sampling bias. |
|
| Sample security | The measures taken to ensure sample security. The chain of custody is managed by Encounter. Samples were transported by Encounter personnel and reputable freight contractors to the assay laboratory. |
| Audits or reviews | The results of any audits or reviews of sampling techniques and data. Sampling techniques and procedures are regularly reviewed internally, as is data. A project QAQC audit was completed prior to Mineral Resource Estimation by Snowden Optiro on Aileron drilling data and sampling techniques. Encounter continue to work closely with Snowden Optiro who advise on best practice sampling techniques and review data as it becomes available. |
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SECTION 2 REPORTING OF EXPLORATION RESULTS
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Mineral | The Aileron project is located within the | |
| tenement and | tenements E80/5169, E80/5469, E80/5470 and | |
| land tenure | E80/5522 which are held 100% by Encounter | |
| status | Type, reference name/number, location and | Resources |
| ownership including agreements or material | ||
| issues with third parties including joint | The tenements are contained within Aboriginal | |
| ventures, partnerships, overriding royalties, | Reserve land where native title rights are held by | |
| native title interests, historical sites, | the Parna Ngururrpa and the Tjamu Tjamu. | |
| wilderness or national park and environmental settings. |
Mineral Resources have been defined at Green (E80/5469), Crean (E80/5169) and Emily |
|
| (E80/5469) wholly within Parna Ngururrpa native | ||
| title determination area. | ||
| Exploration | Prior to Encounter Resources, no previous on | |
| done by other | Acknowledgment and appraisal of exploration | ground exploration has been conducted on the |
| parties | by other parties. | tenement other than government precompetitive |
| data. | ||
| Geology | The Aileron project is situated in the Proterozoic | |
| West Arunta Province of Western Australia. The | ||
| geology of the area is poorly studied due to the | ||
| lack of outcrop and previous exploration. | ||
| A 2024 GSWA report (using 2023 Encounter EIS | ||
| drill cores) has documented Paleoproterozoic | ||
| gneisses and metasedimentary rocks in the | ||
| region. A younger, Mesoproterozoic garnet- | ||
| bearing granitic gneiss has now been documented | ||
| in the belt. Granulite facies metamorphism | ||
| occurred soon after this Mesoproterozoic |
||
| magmatic emplacement. In the Neoproterozoic | ||
| gneissic rocks were intruded by post |
||
| metamorphic, cogenetic carbonatite, lamprophyre | ||
| and aillikite-type lamprophyres. | ||
| The extensive geological history in the belt is still | ||
| being unraveled by ongoing research studies. The | ||
| Deposit type, geological setting and style of mineralisation |
belt is prospective for carbonatite-hosted critical mineral deposits, IOCG style copper deposits and orogenic gold. |
|
| Green, Crean and Emily are carbonatite related | ||
| niobium deposits. Oxide-enriched mineralisation | ||
| has derived from primary niobium enriched | ||
| carbonatites through deflationary and regolith | ||
| weathering processes. | ||
| The Aileron carbonatites have intruded into | ||
| gneisses and metasedimentary basement rocks | ||
| along interpreted structural corridors including the | ||
| Elephant Island (at Crean) and the Weddell Fault | ||
| (at Emily and Green). Carbonatite intrusions have | ||
| intensely fenitised (altered) surrounding basement | ||
| rocks. Lamprophyre intrusions interpreted as | ||
| cogenetic with carbonatites are present, |
||
| particularly near the margins of carbonatite | ||
| intrusions. Preferential weathering of carbonatites | ||
| has accelerated oxidation and resulted in niobium | ||
| enrichment at Green, Crean and Emily. |
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| Drill hole information |
A summary of all information material to the understanding of the exploration results including tabulation of the following information for all Material drill holes: Easting and northing of the drill hole collar Elevation or RL (Reduced Level – elevation above sea level in meters) of the drill hole collar Dip and azimuth of the hole Down hole length and interception depth Hole length Refer to tabulation in the body of this announcement |
|---|---|
| Data aggregation methods |
In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (e.g. cutting of high grades) and cut-off grades are usually Material and should be stated. All reported assays have been length weighted, with a nominal 0.2% Nb2O5lower limit and a maximum of 3m of internal dilution. Intervals greater than 1% Nb2O5have been reported as including. Selected intervals greater than 2% Nb2O5or 1% TREO have been itemised. No upper cutoffs have been applied. |
| Where aggregated intercepts incorporate short lengths of high grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail. All reported assays have been length weighted, with a nominal 0.2% Nb2O5lower limit and a maximum of 3m of internal dilution. Intervals greater than 1% Nb2O5have been reported as including. Selected intervals greater than 2% Nb2O5or 1% TREO have been itemised. No upper cutoffs have been applied. |
|
| The assumptions used for any reporting of metal equivalent values should be clearly stated. No metal equivalents have been reported in this announcement. For the purposes of assay intersection calculation, and small sections of lost core were assigned a length weighted average of assay results from samples directly above and below. |
|
| Relationship between mineralization widths and intercept lengths |
These relationships are particularly important in the reporting of exploration results. If the geometry of the mineralization with respect to the drill hole angle is known, its nature should be reported. If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (e.g. ‘down hole length, true width not known’). Reported results are downhole length. True width is not yet known due to insufficient drilling in the targeted areas. |
| Diagrams | Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported. These should include, but not be limited to a plane view of drill hole collar locations and appropriate sectional views. Refer to body of this announcement |
| Balanced Reporting |
Where comprehensive reporting of all Exploration Results is not practical, representative reporting of both low and high grades and/or widths should be practiced to All results have been balanced and transparently reported. |
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| avoid misleading reporting of Exploration | ||||||
|---|---|---|---|---|---|---|
| Results. | ||||||
| Other | Other exploration data, if meaningful and | |||||
| substantive | material, should be reported including (but not | |||||
| exploration | limited to): geological observation; | |||||
| data | geophysical survey results; geochemical | All meaningful | and material information has been | |||
| survey results; bulk samples – size and method of treatment; metallurgical test results; |
included in the | body of the text. | ||||
| bulk density, groundwater, geotechnical and | ||||||
| rock characteristics; potential deleterious or | ||||||
| contaminating substances. | ||||||
| Further Work | The nature and scale of planned further work | |||||
| (e.g. tests for lateral extensions or depth | MRE update scheduled for Q2 2026 | incorporating | ||||
| extensions or large – scale step – out drilling). | infill and extensional drilling. | |||||
| Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling |
Infill drilling of high-grade commencing April 2026. |
mineralisation | ||||
| areas, provided this information is not | ||||||
| commercially sensitive. |