REG - Cobra Resources PLC - Outstanding Blue Rose Copper Results - Discovery
Today 07:00
For best results when printing this announcement, please click on link below:
https://newsfile.refinitiv.com/getnewsfile/v1/story?guid=urn:newsml:reuters.com:20260309:nRSI8356Va&default-theme=true
RNS Number : 8356V Cobra Resources PLC 09 March 2026
THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION FOR THE PURPOSES OF ARTICLE 7 OF
REGULATION 2014/596/EU WHICH IS PART OF DOMESTIC UK LAW PURSUANT TO THE MARKET
ABUSE (AMENDMENT) (EU EXIT) REGULATIONS (SI 2019/310) ("UK MAR"). UPON THE
PUBLICATION OF THIS ANNOUNCEMENT, THIS INSIDE INFORMATION (AS DEFINED IN UK
MAR) IS NOW CONSIDERED TO BE IN THE PUBLIC DOMAIN.
NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART, DIRECTLY OR
INDIRECTLY IN OR INTO THE UNITED STATES, AUSTRALIA, CANADA, JAPAN, THE
REPUBLIC OF SOUTH AFRICA OR ANY OTHER JURISDICTION WHERE TO DO SO WOULD
CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OF SUCH JURISDICTION.
9 March 2026
Cobra Resources plc
("Cobra" or the "Company")
Manna Hill: Outstanding Copper Results Elevate Blue Rose from Prospect to
Discovery
Initial assays including 74m at 1.02% Cu and 0.25g/t Au add scale and
continuity to shallow high-grade historical intersections
Cobra (https://cobraplc.com/) (LSE: COBR)
(https://www.londonstockexchange.com/stock/COBR/cobra-resources-plc/company-page)
, a South Australian mineral exploration and development company, is pleased
to report results from 4 of 18 recently completed Reverse Circulation ("RC")
drill holes from Blue Rose, a copper-gold-molybdenum prospect within the Manna
Hill Copper Project, located in the Nackara Arc, South Australia.
Highlights:
· Extensive, high-grade copper-gold and ancillary molybdenum
mineralisation, adding scale to historical intersections. Standout results
include:
§ MHRC0018: 20m at 0.78% Cu, 0.14 g/t Au
from 38m, and
§ 74m at 1.02% Cu, 0.25 g/t Au from 70m, including:
§ 14m at 1.52% Cu, 0.42g/t Au from 88m
§ MHRC0017: 86m at 0.60% Cu, 0.14 g/t Au
from 18m, including:
§ 12m at 1.05% Cu, 0.09g/t Au from 32m
§ 12m at 1.10% Cu, 0.53 g/t Au from 58m
o Drilling confirms down-dip continuity to the historical shallow,
high-grade intersection within RABR822 of 47m at 2.2% Cu and 0.76 g.t Au from
11m
o Preliminary interpretations infer a width of mineralisation of
approximately 70m. Additional diamond drilling is planned to validate true
width estimates.
· Copper and separate outstanding molybdenum intersections include:
MHRC0003:
56m at
0.34% Cu from 34m, including:
§ 18m at 0.52% Cu from 38m, and
§ 14m at 0.21% Cu, 0.01% Mo from 122m, and
§ 10m at 0.12% Mo from 144m, including
§ 2m at 0.38% Mo from 146m
· Molybdenum grades are high and may add considerable upside. The fact
that molybdenum mineralisation is independent of copper-gold sulphides
simplifies processing.
· Molybdenum is a primary pathfinder for porphyry vectoring and
identifying the potassic alteration zone, which can host higher-grade copper
mineralisation. The intersected molybdenum grades and their direct association
to narrow, porphyry type intrusive(s) is evidence of a much larger mineral
system.
· These initial results, and the geological observations from the
remaining drillholes, combine to strongly support scale within the Blue Rose
skarn and a greater porphyry system.
· Results are partial for MHRC0003 and MHRC0001 with gold assays
outstanding.
· Results from a further 14 completed RC drillholes are expected
throughout March.
· Requisite approvals have been received in respect of a planned
programme comprising 29 RC drillholes and 3 diamond drillholes at Blue Rose.
Rupert Verco, Managing Director, commented:
"Cobra considers that these results validate the potential of the Manna Hill
Copper Project. The two intersections in MHRC0018 collectively total 92m at
1.0% Cu and 0.22 g/t Au, representing shallow, thick, high-grade
mineralisation with standout economic potential.
Blue Rose is the first of a series of prospects to be addressed by Cobra in
the fertile Manna Hill porphyry province. Follow-up work at Blue Rose and
initial testing of other prospective Manna Hill prospects is being given high
priority.
Cobra is advancing both its 100%-owned Boland In-Situ Recoverable Dysprosium
and Terbium Project and the Manna Hill Copper-Gold-Molybdenum Project where
the Company holds rights to acquire 100% ownership. Both projects are in South
Australia, a secure jurisdiction for resource development and production. It's
an exciting time to be invested in Cobra."
To watch a video of Rupert Verco, Managing Director, discussing these drill
results, follow the link:
https://investors.cobraplc.com/link/P46Aoe
(https://investors.cobraplc.com/link/P46Aoe) .
Further information regarding the drilling programme and initial results
Cobra has a 12-month option to acquire the Manna Hill Project ("Manna Hill
Option") and is focusing initially on the Blue Rose priority prospect where
previous drilling intersected copper-gold mineralisation along 1.6km of strike
immediately adjacent to a geophysical anomaly interpretated as a porphyry
intrusion(1).
Under the Manna Hill Option Agreement, Cobra sought to test several geological
observations that have implications for a large-scale mineral system at Blue
Rose. This included testing for the continuity of Blue Rose Skarn
mineralisation at both depth and with increased strike. Initial results have
been received from drill holes within Blue Rose 'Skarn' mineralisation
Results remain pending for:
· Further drillholes at Blue Rose testing depth and along-strike
continuity.
· Drillholes targeting skarn-style mineralisation at Neptune Rose - a
geophysical target aligned north of and parallel to Blue Rose.
· Drilling targeting the Black Baccara Porphyry target; a large
geophysical target north-west of the Blue Rose Skarn.
A total of 18 drillholes (3,200m) were completed in February. Unexpected
excess water was encountered in many drillholes and resulted in some holes
being terminated before targeted depths. Holes were terminated in a manner
that shall enable targeted depths to be achieved with diamond tails should
results warrant further drilling.
Initial results have been received from:
MHRC0001: 0 - 156m*
MHRC0003: 0 - 156m*
MHRC0017: 0 - 150m
MHRC0018: 0 - 150m
Based on pXRF and visual observations MHRC0017 and MHRC0018 were prioritised
for assay.
Table 1: Reported downhole significant intersections
MHRC0001 12 16 4 0.27 *
and 58 62 4 0.75 *
and 110 138 28 0.23 *
MHRC0003 34 90 56 0.34 *
including 40 48 8 0.71 *
and 122 136 14 0.21 * 0.01
and 144 154 10 0.07 * 0.12
including 146 148 2 0.12 * 0.38
MHRC0017 18 104 86 0.60 0.14
Including 32 44 12 1.05 0.09
58 70 12 1.10 0.53
86 90 4 1.05 0.57
MHRC0018 38 58 20 0.78 0.13
and 70 142 74 1.02 0.25
including 88 102 14 1.52 0.42
including 112 116 4 1.63 0.42
including 120 124 4 2.02 0.55
including 140 142 2 1.65 1.10 0.04
*Fire assay (gold) results are pending
Figure 1: Blue Rose, Neptune Rose and Black Baccara Targets - February 2026
drilling collars and traces over a background of historical drillholes.
Blue Rose High-Grade Zone
MHRC0017 and MHRC0018 were designed to test the continuity of primary
mineralisation below high-grade intersected within RABR822 of 47m at 2.2% Cu
and 0.76 g.t Au from 11m.
MHRC 0017 demonstrated that mineralisation is continuous through the
transition zone from oxidized to primary mineralisation. Most of the
mineralisation in the intersection 86m of 0.60% copper and 0.14 g/t gold is
considered to occur in the transitional zone.
MHRC0018 intersected two distinct zones:
· An oxide intersection of 20m at 0.78% Cu, 0.13g/t Au from 38m
downhole, and
· A primary sulphide zone of 74m at 1.02% Cu, 0.25 g/t Au from 70m
downhole. This intersection is entirely within primary sulphide
mineralisation.
Mineralisation intersected by drillholes MHRC0017 and 0018 has a true width of
approximately 70m where downdip continuity appears strong. MHRC0018 is the
best primary sulphide result reported from the project.
Figure 2: Cross Section A: Highlighting intersections of drillholes MHRC0017
and MHRC0018.
Porphyry intrusion related mineralisation
MHRC0003 has established continuity of mineralisation associated with two
dykes and mineralisation intersected in the following holes:
Mineralisation within MHRC0003 shows connectivity between shallow oxide
mineralisation within RABR205 that intersected 43m at 0.6% Cu from 12m and
diamond drillhole BRDD003 that contains multiple low-grade zones and included:
16.15m at 0.51% Cu, 17.8m at 0.08% Mo from 144.2m, 5.8m at 0.13% Mo from
156.2m and 26.7m at 0.43% Cu from 195m.
Molybdenum mineralisation occurs in association with bedding-concordant
dioritic intrusive rocks in each of these three drillholes. Recognition of
this rock type/mineralisation relationship is expected to materially assist
exploration for the porphyry-style mineralisation which is thought likely to
exist nearby.
Figure 3: Cross section 429,000mE depicting mineralisation continuity defined
by MHRC0003 and the porphyry related intrusions that host high-grade
molybdenum mineralisation.
Figure 4: Long section 6,388,350mN, highlighting the depth, continuity and
distribution of intersections.
Significance of results
High-grade (in excess of 1% copper) primary mineralisation lies open beneath
the 130 metre vertical depth reached by drillhole MHRC0018. Down-dip
extensions of this mineralisation present an attractive target for planned
diamond drilling.
As the remaining drill-return assays are received over the coming fortnight,
mineralisation geometry will be modelled, geochemical trends will be
identified, and next steps will be determined.
About the Manna Hill Project
The Manna Hill Project presents South Australia's premier porphyry prospect in
the state that holds around 70% of Australia's copper reserves. The project is
comprised of multiple early-stage porphyry and skarn prospects.
The project also includes the Luron Carlin style gold prospect and multiple
historic goldfields where over 30koz Au were reported to have been produced.
This style of mineralisation remains underexplored and highly prospective.
The project sits along the national railway and Barrier Highway between the
mining hub of Broken Hill, a port and base metals smelter, and the City of
Adelaide.
Enquiries:
Cobra Resources plc via Vigo Consulting
Rupert Verco (Australia) +44 (0)20 7390 0234
Dan Maling (UK)
SI Capital Limited (Joint Broker) +44 (0)1483 413 500
Nick Emerson
Sam Lomanto
Global Investment Strategy (Joint Broker) +44 (0)20 7048 9437
James Sheehan james.sheehan@gisukltd.com
Vigo Consulting (Financial Public Relations) +44 (0)20 7390 0234
Ben Simons cobra@vigoconsulting.com
Fiona Hetherington
The person who arranged for the release of this announcement was Rupert Verco,
Managing Director of the Company.
Information in this announcement relates to exploration results that have been
reported in the following announcements:
· Cobra RNS: Option to Acquire Significant Copper Project, 26 August
2025
Competent Persons Statement
Information in this announcement has been compiled based on reports from Mitre
Geophysics consultants and assessed by Mr Rupert Verco, a Fellow of the
Australasian Institute of Mining and Metallurgy. Mr Verco is an employee of
Cobra and has more than 18 years' industry experience which is relevant to the
style of mineralisation, deposit type, and activity which he is undertaking to
qualify as a Competent Person as defined in the 2012 Edition of the
Australasian Code for Reporting Exploration Results, Mineral Resources and Ore
Reserves of JORC. This includes 13 years of Mining, Resource Estimation and
Exploration.
Glossary
Au Gold
Cu Copper
Mo Molybdenum
About Cobra
Cobra Resources is a South Australian critical minerals developer, advancing
assets at all stages of the pre-production pathway.
In 2023, Cobra identified the Boland ionic rare earth discovery at its Wudinna
Project in the Gawler Craton - Australia's only rare earth project suitable
for in situ recovery (ISR) mining. ISR is a low-cost, low-disturbance
extraction method that eliminates the need for excavation, positioning Boland
to achieve bottom-quartile recovery costs.
In 2025, Cobra further expanded its portfolio by optioning the Manna Hill
Copper Project in the Nackara Arc, South Australia. The project contains
multiple underexplored prospects with strong potential to deliver large-scale
copper discoveries.
In 2025, Cobra sold its Wudinna Gold Assets to Barton Gold (ASX: BDG) for up
to A$15 million in cash and shares.
Regional map showing Cobra's tenements in South Australia
Follow us on social media:
LinkedIn: https://www.linkedin.com/company/cobraresourcesplc
(https://www.linkedin.com/company/cobraresourcesplc)
X: https://twitter.com/Cobra_Resources (https://twitter.com/Cobra_Resources)
Engage with us by asking questions, watching video summaries and seeing what
other shareholders have to say. Navigate to our Interactive Investor hub here:
https://investors.cobraplc.com/ (https://investors.cobraplc.com/)
Subscribe to our news alert service:
https://investors.cobraplc.com/auth/signup
(https://investors.cobraplc.com/auth/signup)
Appendix 1: Collar coordinates and drillhole details coordinates in MGA94,
Zone 54
MHRC0001 6388389 428976 240 156 180 -60
MHRC0002 6388736 428497 239 270 180 -60
MHRC0003 6388392 429025 240 156 180 -60
MHRC0004 6388725 429099 235 126 180 -60
MHRC0005 6388774 429101 236 156 180 -60
MHRC0006 6388826 429101 236 156 180 -60
MHRC0007 6388879 429102 237 168 180 -60
MHRC0008 6388528 429201 231 258 180 -60
MHRC0009 6388328 428824 238 138 180 -60
MHRC0010 6388372 428824 239 174 180 -60
MHRC0011 6388421 428834 239 210 180 -60
MHRC0012 6388554 428804 238 180 0 -60
MHRC0013 6388320 428625 241 150 180 -60
MHRC0014 6388475 428626 239 180 180 -60
MHRC0015 6388425 428325 239 156 180 -60
MHRC0016 638855 428247 241 264 220 -60
MHRC0017 6388398 429378 235 150 180 -60
MHRC0018 6388426 429376 234 152 180 -60
Appendix 2 - Compositing of significant intersections. Labels in orange
represent reported downhole intersections
MHRC0001 BPE00507 10 12 * 723 3.4
MHRC0001 BPE00508 12 14 * 4,160 6.6
MHRC0001 BPE00509 14 16 * 1,180 5.4
MHRC0001 BPE00511 16 18 * 398 2
MHRC0001 BPE00513 20 22 * 979 12.4
MHRC0001 BPE00514 22 24 * 909 5.4
MHRC0001 BPE00515 24 26 * 1,490 8.6
MHRC0001 BPE00516 26 28 * 1,300 2.6
MHRC0001 BPE00517 28 30 * 1,260 3.2
MHRC0001 BPE00518 30 32 * 592 1
MHRC0001 BPE00519 32 34 * 891 0.8
MHRC0001 BPE00520 34 36 * 1,270 1
MHRC0001 BPE00521 36 38 * 342 3.2
MHRC0001 BPE00522 38 40 * 1,110 3.4
MHRC0001 BPE00523 40 42 * 889 1
MHRC0001 BPE00525 42 44 * 1,190 2.8
MHRC0001 BPE00526 44 46 * 1,370 59.2
MHRC0001 BPE00527 46 48 * 513 20.8
MHRC0001 BPE00528 48 50 * 1,660 28.2
MHRC0001 BPE00529 50 52 * 1,870 20.6
MHRC0001 BPE00530 52 54 * 1,320 13.6
MHRC0001 BPE00531 54 56 * 3,270 10.6
MHRC0001 BPE00532 56 58 * 827 13.6
MHRC0001 BPE00533 58 60 * 4,890 24.8
MHRC0001 BPE00534 60 62 * 10,200 16.8
MHRC0001 BPE00535 62 64 * 648 46.6
MHRC0001 BPE00556 102 104 * 591 30.8
MHRC0001 BPE00557 104 106 * 1,500 49.8
MHRC0001 BPE00558 106 108 * 1,940 16.2
MHRC0001 BPE00559 108 110 * 635 8.6
MHRC0001 BPE00561 110 112 * 3,320 12.8
MHRC0001 BPE00562 112 114 * 668 8.4
MHRC0001 BPE00563 114 116 * 987 11.2
MHRC0001 BPE00564 116 118 * 5,500 51.2
MHRC0001 BPE00565 118 120 * 773 44.2
MHRC0001 BPE00566 120 122 * 1,600 37
MHRC0001 BPE00567 122 124 * 1,530 44.4
MHRC0001 BPE00568 124 126 * 169 7.4
MHRC0001 BPE00569 126 128 * 7,580 21
MHRC0001 BPE00570 128 130 * 1,860 22.2
MHRC0001 BPE00571 130 132 * 222 5.2
MHRC0001 BPE00572 132 134 * 2,580 38.8
MHRC0001 BPE00573 134 136 * 3,400 56.2
MHRC0001 BPE00575 136 138 * 2,360 14.6
MHRC0001 BPE00576 138 140 * 769 32
MHRC0001 BPE00577 140 142 * 237 21.2
MHRC0003 BPE00741 24 26 * 2,080 4
MHRC0003 BPE00742 26 28 * 1,110 3.2
MHRC0003 BPE00743 28 30 * 226 2.2
MHRC0003 BPE00744 30 32 * 802 2.4
MHRC0003 BPE00745 32 34 * 1,920 1.4
MHRC0003 BPE00746 34 36 * 2,680 0.8
MHRC0003 BPE00747 36 38 * 3,170 1.2
MHRC0003 BPE00748 38 40 * 4,600 5
MHRC0003 BPE00749 40 42 * 5,060 7.6
MHRC0003 BPE00750 42 44 * 7,410 7
MHRC0003 BPE00751 44 46 * 5,750 32.8
MHRC0003 BPE00752 46 48 * 10,140 33.6
MHRC0003 BPE00753 48 50 * 3,020 4.4
MHRC0003 BPE00754 50 52 * 3,140 9
MHRC0003 BPE00755 50 52 * 2,710 6.4
MHRC0003 BPE00756 52 54 * 5,200 16
MHRC0003 BPE00757 54 56 * 902 48
MHRC0003 BPE00758 56 58 * 765 16.4
MHRC0003 BPE00759 58 60 * 2,060 135
MHRC0003 BPE00762 62 64 * 1,800 24.4
MHRC0003 BPE00763 64 66 * 337 11.4
MHRC0003 BPE00764 66 68 * 2,390 23.4
MHRC0003 BPE00765 68 70 * 5,460 76.2
MHRC0003 BPE00766 70 72 * 3,770 19.6
MHRC0003 BPE00767 72 74 * 4,600 5
MHRC0003 BPE00768 74 76 * 1,140 3.4
MHRC0003 BPE00769 76 78 * 1,870 419
MHRC0003 BPE00770 78 80 * 3,350 56
MHRC0003 BPE00771 80 82 * 1,560 31.2
MHRC0003 BPE00772 82 84 * 991 36
MHRC0003 BPE00773 84 86 * 2,390 14
MHRC0003 BPE00775 86 88 * 4,760 26.6
MHRC0003 BPE00776 88 90 * 3,260 240
MHRC0003 BPE00777 90 92 * 747 46.8
MHRC0003 BPE00778 92 94 * 88 9
MHRC0003 BPE00779 94 96 * 1,290 7.4
MHRC0003 BPE00780 96 98 * 982 15.4
MHRC0003 BPE00789 114 116 * 189 25.6
MHRC0003 BPE00790 116 118 * 92 9.2
MHRC0003 BPE00792 120 122 * 449 17.2
MHRC0003 BPE00793 122 124 * 5,800 101
MHRC0003 BPE00794 124 126 * 2,030 63.6
MHRC0003 BPE00795 126 128 * 1,230 86
MHRC0003 BPE00796 128 130 * 860 48.4
MHRC0003 BPE00797 130 132 * 1,030 43.4
MHRC0003 BPE00798 132 134 * 1,900 131
MHRC0003 BPE00799 134 136 * 2,030 55
MHRC0003 BPE00800 136 138 * 578 5.2
MHRC0003 BPE00801 138 140 * 2,400 4.4
MHRC0003 BPE00802 140 142 * 1,810 130
MHRC0003 BPE00803 142 144 * 1,180 83.6
MHRC0003 BPE00804 144 146 * 755 926
MHRC0003 BPE00805 144 146 * 28 892
MHRC0003 BPE00806 146 148 * 1,180 3760
MHRC0003 BPE00807 148 150 * 1,580 431
MHRC0003 BPE00808 150 152 * 347 337
MHRC0003 BPE00809 152 154 * 297 591
MHRC0003 BPE00811 154 156 * 235 216
MHRC0017 BPE02049 12 14 0.01 1,240 3.8
MHRC0017 BPE02050 14 16 0.02 1,350 6.8
MHRC0017 BPE02051 16 18 0.01 1,110 11.8
MHRC0017 BPE02052 18 20 0.01 3,700 1.6
MHRC0017 BPE02053 20 22 0.01 4,620 7
MHRC0017 BPE02054 22 24 0.01 4,300 1.6
MHRC0017 BPE02055 22 24 0.01 5,350 5
MHRC0017 BPE02056 24 26 0.02 1,880 1.8
MHRC0017 BPE02057 26 28 0.02 3,840 2
MHRC0017 BPE02058 28 30 0.01 4,460 1.6
MHRC0017 BPE02059 30 32 0.02 5,400 1.2
MHRC0017 BPE02061 32 34 0.02 13,000 1
MHRC0017 BPE02062 34 36 0.03 14,000 1
MHRC0017 BPE02063 36 38 0.02 11,700 0.8
MHRC0017 BPE02064 38 40 0.02 7,910 0.4
MHRC0017 BPE02065 40 42 0.07 7,520 0.6
MHRC0017 BPE02066 42 44 0.38 8,840 0.4
MHRC0017 BPE02067 44 46 0.04 3,290 0.6
MHRC0017 BPE02068 46 48 0.07 3,730 1.2
MHRC0017 BPE02069 48 50 0.04 1,730 1.6
MHRC0017 BPE02070 50 52 0.02 7,420 1.8
MHRC0017 BPE02071 52 54 0.01 4,280 2.4
MHRC0017 BPE02072 54 56 0.15 9,700 1.2
MHRC0017 BPE02073 56 58 0.18 3,680 1
MHRC0017 BPE02075 58 60 0.31 12,000 20.8
MHRC0017 BPE02076 60 62 1.35 9,130 18.4
MHRC0017 BPE02077 62 64 0.68 14,500 1.2
MHRC0017 BPE02078 64 66 0.25 4,950 1.6
MHRC0017 BPE02079 66 68 0.25 7,270 2
MHRC0017 BPE02080 68 70 0.36 18,000 268
MHRC0017 BPE02081 70 72 0.05 4,570 4.4
MHRC0017 BPE02082 72 74 0.01 1,890 2.4
MHRC0017 BPE02083 74 76 0.04 3,410 1.6
MHRC0017 BPE02084 76 78 0.07 4,820 4.8
MHRC0017 BPE02085 78 80 0.05 9,150 9.2
MHRC0017 BPE02086 80 82 0.1 2,480 1.8
MHRC0017 BPE02087 82 84 0.1 2,560 0.6
MHRC0017 BPE02088 84 86 0.05 2,120 1.2
MHRC0017 BPE02089 86 88 0.35 5,890 18.8
MHRC0017 BPE02090 88 90 0.78 15,200 65.4
MHRC0017 BPE02091 90 92 0.03 1,020 3.6
MHRC0017 BPE02092 92 94 0.01 230 2.4
MHRC0017 BPE02093 94 96 0.06 3,350 8.8
MHRC0017 BPE02094 96 98 0.05 4,160 7.2
MHRC0017 BPE02095 98 100 0.03 2,010 54
MHRC0017 BPE02096 100 102 0.02 2,060 29
MHRC0017 BPE02097 102 104 0.07 3,020 27
MHRC0017 BPE02098 104 106 0.02 846 74.6
MHRC0017 BPE02099 106 108 0.02 1,470 31
MHRC0017 BPE02106 118 120 0.01 211 50.4
MHRC0017 BPE02107 120 122 0.01 502 16.8
MHRC0017 BPE02108 122 124 0.01 4,260 19.4
MHRC0017 BPE02109 124 126 0.01 1,090 5
MHRC0017 BPE02111 126 128 0.01 2,220 13.6
MHRC0017 BPE02112 128 130 0.01 1,310 9.8
MHRC0017 BPE02113 130 132 0.01 473 7.2
MHRC0017 BPE02114 132 134 0.01 117 9
MHRC0018 BPE02139 30 32 0.01 2,370 1.4
MHRC0018 BPE02140 32 34 0.08 1,010 0.6
MHRC0018 BPE02141 34 36 0.01 464 0.4
MHRC0018 BPE02142 36 38 0.01 668 0.8
MHRC0018 BPE02143 38 40 0.06 5,820 7.6
MHRC0018 BPE02144 40 42 0.04 13,200 5.8
MHRC0018 BPE02145 42 44 0.16 14,600 2
MHRC0018 BPE02146 44 46 0.04 11,200 1.6
MHRC0018 BPE02147 46 48 0.43 9,910 45.4
MHRC0018 BPE02148 48 50 0.39 9,490 8.4
MHRC0018 BPE02149 50 52 0.04 5,140 1.4
MHRC0018 BPE02150 52 54 0.03 2,320 1
MHRC0018 BPE02151 54 56 0.05 3,500 0.4
MHRC0018 BPE02152 56 58 0.02 3,140 0.4
MHRC0018 BPE02153 58 60 0.01 370 1.2
MHRC0018 BPE02154 60 62 0.01 827 1
MHRC0018 BPE02158 66 68 0.01 623 1
MHRC0018 BPE02159 68 70 0.03 1,310 7.4
MHRC0018 BPE02161 70 72 0.04 6,040 20.4
MHRC0018 BPE02162 72 74 0.08 8,250 14.6
MHRC0018 BPE02163 74 76 0.07 16,200 15.2
MHRC0018 BPE02164 76 78 0.33 16,900 1.6
MHRC0018 BPE02165 78 80 0.16 13,200 3
MHRC0018 BPE02166 80 82 0.37 8,810 15.4
MHRC0018 BPE02167 82 84 0.15 14,200 11.6
MHRC0018 BPE02168 84 86 0.18 8,910 5.6
MHRC0018 BPE02169 86 88 0.25 2,920 1.4
MHRC0018 BPE02170 88 90 0.07 16,300 9.4
MHRC0018 BPE02171 90 92 0.28 18,600 12.6
MHRC0018 BPE02172 92 94 0.83 25,900 84.8
MHRC0018 BPE02173 94 96 0.4 14,300 5.6
MHRC0018 BPE02175 96 98 0.18 7,850 1.6
MHRC0018 BPE02176 98 100 0.1 4,590 1.2
MHRC0018 BPE02177 100 102 1.1 19,200 11.4
MHRC0018 BPE02178 102 104 0.28 12,500 11.6
MHRC0018 BPE02179 104 106 0.09 3,240 1.8
MHRC0018 BPE02180 106 108 0.1 2,690 1.2
MHRC0018 BPE02181 108 110 0.01 5,350 1.4
MHRC0018 BPE02182 110 112 0.2 9,550 0.4
MHRC0018 BPE02183 112 114 0.53 22,200 12.6
MHRC0018 BPE02184 114 116 0.31 10,300 7.8
MHRC0018 BPE02185 116 118 0.13 5,270 1.4
MHRC0018 BPE02186 118 120 0.23 8,010 2.8
MHRC0018 BPE02187 120 122 0.41 12,300 2.6
MHRC0018 BPE02188 122 124 0.68 28,100 3.8
MHRC0018 BPE02189 124 126 0.07 4,810 3.2
MHRC0018 BPE02190 126 128 0.03 13,200 17
MHRC0018 BPE02191 128 130 0.04 4,800 6.2
MHRC0018 BPE02192 130 132 0.01 1,920 19.2
MHRC0018 BPE02193 132 134 0.03 2,220 3.8
MHRC0018 BPE02194 134 136 0.01 791 0.4
MHRC0018 BPE02195 136 138 0.03 3,020 13.6
MHRC0018 BPE02196 138 140 0.14 6,360 16.8
MHRC0018 BPE02197 140 142 1.1 16,500 427
MHRC0018 BPE02198 142 144 0.02 3,930 16
MHRC0018 BPE02199 144 146 0.01 1,320 14.4
Appendix 3: JORC Code, 2012 Edition - Table 3
Criteria JORC Code explanation Commentary
Sampling techniques · Nature and quality of sampling (eg cut channels, random chips, or Historic
specific specialised industry standard measurement tools appropriate to the
minerals under investigation, such as down hole gamma sondes, or handheld XRF · Historic drill programs have been conducted by multiple companies
instruments, etc). These examples should not be taken as limiting the broad and methods the historically reported results are being reviewed prior to any
meaning of sampling. broader reporting of results. In general lab assay results across differing
programs show comparable tenors of grade and distribution.
· Include reference to measures taken to ensure sample representivity
and the appropriate calibration of any measurement tools or systems used.
· Aspects of the determination of mineralisation that are Material to Present
the Public Report.
· RC drill cuttings were collected from the drill rig cyclone in 2
· In cases where 'industry standard' work has been done this would be m intervals in industry standard green bags with a 2m representative split
relatively simple (eg 'reverse circulation drilling was used to obtain 1 m from the cyclone collected into a calico bag. The green and calico bags were
samples from which 3 kg was pulverised to produce a 30 g charge for fire arranged in rows on site for sampling and assaying.
assay'). In other cases more explanation may be required, such as where there
is coarse gold that has inherent sampling problems. Unusual commodities or · 2 m samples were split using a cone splitter mounted on the drill
mineralisation types (eg submarine nodules) may warrant disclosure of detailed rig.
information.
· Samples were submitted to BV Laboratories, Perth for analysis.
Drilling techniques · Drill type (eg core, reverse circulation, open-hole hammer, rotary Historic Drilling
air blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or
standard tube, depth of diamond tails, face-sampling bit or other type, · Historic drill methods were predominantly aircore and RC drilling
whether core is oriented and if so, by what method, etc). with some diamond drilling reported
Current Drilling
· Schramm T685 RC rig operated by Bullion Drilling Pty Ltd. The RC
drilling was conducted using a 5 ¾-inch hammer. A booster air compressor was
used throughout the program.
Drill sample recovery · Method of recording and assessing core and chip sample recoveries and · Historic recoveries have not been assessed.
results assessed.
· Drill methods and geological conditions are not expected to
· Measures taken to maximise sample recovery and ensure representative promote significant reduced recovery or sample biasing
nature of the samples.
· Bulk RC samples were visually assessed and considered to be
· Whether a relationship exists between sample recovery and grade and representative with good recovery. Recoveries were recorded onsite into Cobras
whether sample bias may have occurred due to preferential loss/gain of MX Deposit database.
fine/coarse material.
· Water was intersected in several drillholes. Where outside return
was lost and sample recovery reduced. Recovery estimates recorded into the
companies database. Shroud tolerance was managed to optimise 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. · Historic logging has been completed with a number of different
geological logging codes. These are being translated into a standardized
· Whether logging is qualitative or quantitative in nature. Core (or logging format prior to entry into the Cobra Drillhole Database
costean, channel, etc) photography.
· The total length and percentage of the relevant intersections logged.
· All holes were qualitatively geologically logged for their entire
length by suitably qualified Cobra geologists and recorded onsite into Cobra's
MX Deposit database.
· Mineral Resources have not been estimated; however, the quality
of the logging is expected to be suitable for low-confidence resource
estimation purposes.
· The detail of geological logging is considered sufficient for
exploration and resource definition drilling.
· Logging included visual estimates for copper oxides and sulphides
aswell as pyrite content
· All intersections were logged.
Sub-sampling techniques and sample preparation · If core, whether cut or sawn and whether quarter, half or all core Historic
taken.
· Historic sampling has not been assessed.
· If non-core, whether riffled, tube sampled, rotary split, etc and
whether sampled wet or dry. Current
· For all sample types, the nature, quality and appropriateness of the · For each metre a Metzke cone split sample was collected in a
sample preparation technique. calico bag. A portable XRF unit was used to screen a selected interval of 1m
RC bulk samples for anomalous copper values. Where copper value readings
· Quality control procedures adopted for all sub-sampling stages to exceeded ~200 ppm Cu, sampling was conducted at 1m intervals using the Metzke
maximise representivity of samples. cone split samples.
· Measures taken to ensure that the sampling is representative of the · Weights of samples submitted for assay averaged 2.5 kg and ranged
in situ material collected, including for instance results for field between 1.8 to 4.1 kg. Sample size is considered appropriate for the material
duplicate/second-half sampling. sampled.
· Whether sample sizes are appropriate to the grain size of the · Commercially certified reference material of known copper grades
material being sampled. and of suitable matrix were included in the laboratory assay sequence at a
rate of 1 per 50 samples.
· First-split duplicate samples were collected at a rate of 1 per
50 samples.
· A coarse blank sample was inserted 1 in every 50 samples.
· The Competent Person considers that the sample size is
appropriate to the grain size of the material being sampled.
Quality of assay data and laboratory tests · The nature, quality and appropriateness of the assaying and Historic
laboratory procedures used and whether the technique is considered partial or
total. · Lab certificates for a large number of drill samples have been
retained from historic drilling. These certificates will be used for the
· For geophysical tools, spectrometers, handheld XRF instruments, etc, import of data into Cobra's drillhole database.
the parameters used in determining the analysis including instrument make and
model, reading times, calibrations factors applied and their derivation, etc.
· Nature of quality control procedures adopted (eg standards, blanks, Current
duplicates, external laboratory checks) and whether acceptable levels of
accuracy (ie lack of bias) and precision have been established. · All samples managed for the presence of asbestiform mineral
fibers owing to the presence of serpentine and chrysotile
Verification of sampling and assaying · The verification of significant intersections by either independent Historic
or alternative company personnel.
· Reported significant intercepts have been reported to the
· The use of twinned holes. Australian Stock Exchange in the past
· Documentation of primary data, data entry procedures, data · Primary assay data and drill logs for reported holes have been
verification, data storage (physical and electronic) protocols. reviewed by Cobra staff
· Discuss any adjustment to assay data. · Further migration of historic data into the Cobra drillhole
database is underway with validation during this process to be undertaken.
Current
· pXRF readings were calibrated using certified reference material
OREAS 460.
· Further QAQC procedures will be reported with results
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. Historic
· Specification of the grid system used. · Historic Drillholes were recorded with a number of different
datums.
· Quality and adequacy of topographic control.
· Validation of the datums used for each program have been
conducted and are continuing.
· The key historic drilling used for planning of the January 2026
drill program have high confidence in the datum used and have been assessed in
the field
Current
· Drill hole locations were determined by handheld GPS with a
nominal accuracy of +/- 5 metres.
· All coordinates and maps presented here are in the MGA Zone 53
GDA94 coordinate system.
· Topographic control is provided by Aerometrex Reigel VQ-780ii
Airborne Laser Scanner producing LiDAR digital elevation data at 0.1m accuracy
with collar heights extracted from a DTM produced from the LiDAR data.
Data spacing and distribution · Data spacing for reporting of Exploration Results. Historic
· Whether the data spacing and distribution is sufficient to establish · Historic drilling was variably spaced. The drill spacing was
the degree of geological and grade continuity appropriate for the Mineral sufficient to define mineralization trends at the Blue Rose Skarn but not to
Resource and Ore Reserve estimation procedure(s) and classifications applied. the extent of defining a resource.
· Whether sample compositing has been applied. · Drilling at Desert Rose and Double Delight has not been
sufficient to assess the prospects and has been sparse
Current
· RC holes were drilled angled south along heritage cleared 'drill
access tracks' or adjacent to heritage cleared pastoral tracks.
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. · Drillholes have been vertical or south dipping
· If the relationship between the drilling orientation and the · Deeper historic drilling has been south dipping
orientation of key mineralised structures is considered to have introduced a
sampling bias, this should be assessed and reported if material. · Mineralization is interpreted to be steeply dipping with limited
success to date in identifying a slight north or south dip.
· Deeper planned drilling is designed to improve the definition of
mineralisation control
· Further diamond drilling is expected to validate geological
interpretations
Sample security · The measures taken to ensure sample security. Historic
· No issues with sample security were reported or are expected to
have occurred
Audits or reviews · The results of any audits or reviews of sampling techniques and data. ·
Appendix 4: Section 2 reporting of exploration results
Criteria JORC Code explanation Commentary
Mineral tenement and land tenure status · Type, reference name/number, location and ownership including · Blue Rose is located on EL6009 that is held
agreements or material issues with third parties such as joint ventures,
by Hamelin Gully Pty Ltd. Manna Hill
partnerships, overriding royalties, native title interests, historical sites,
Mining Pty Ltd, a subsidiary of Cobra
wilderness or national park and environmental settings.
Resources Plc has a 12-month option to
acquire Hamelin Gully.
· The security of the tenure held at the time of reporting along
with any known impediments to obtaining a licence to operate in the area. · This drilling forms part of the company's
strategy to seek shareholder approval to
exercise the option.
· A 1% Over Riding Royalty Agreement is
registered between Hamelin Gully and
Springton Trust
A Native Title Agreement is in place
between the Wilyakali People and Hamelin
Gully Pty Ltd
Cultural heritage surveys have been
completed over EL6009, clearing proposed
drill sites
Exploration done by other parties · Acknowledgment and appraisal of exploration by other parties.
· Historic Exploration has been conducted by multiple companies
with key work completed by PacMag, Lynas and Giralia Resources.
· Historic exploration demonstrated the geological environment at
Blue Rose and the potential for economic mineralization
· Commercially driven decisions and land access challenges (now
resolved) were common trends in the history of the project transactions
Geology · Deposit type, geological setting and style of mineralisation. Blue Rose
· Blue Rose is skarn hosted mineralization on the margins of the
Anabama Granite
· Oxide mineralisation is stratabound to the Saddleworth limestone
formation
· A number of porphyry related intrusions have a spatial
relationship to mineralisation at Blue Rose and further analysis is planned to
determine the control on exo-skarn mineralisation.
Neptune Rose
· Is interpreted to be hosted within skarn mineralization.
· Assessment of the structural vs stratigraphic controls on
mineralization will be assessed during drilling
Black Baccara
· Is interpret to be a sulphide rich halo around a magnetic low
core.
Assessment of Geological survey spectral from nearby "near miss" diamond holes
indicate the metamorphic gradient and spectral responses anticipated from a
porphyry system
Drillhole Information · A summary of all information material to the understanding of the · Drilling results are being assessed on the migration of data to
exploration results including a tabulation of the following information for the Cobra drillhole database
all Material drill holes:
· Historic drill results reflective of the grades and widths
o easting and northing of the drill hole collar expected of the Blue Rose prospect.
o elevation or RL (Reduced Level - elevation above sea level in metres) of · Reporting of these results will be included at the completion of
the drill hole collar the data migration and review.
o dip and azimuth of the hole
o down hole length and interception depth
o hole length.
· If the exclusion of this information is justified on the basis
that the information is not Material and this exclusion does not detract from
the understanding of the report, the Competent Person should clearly explain
why this is the case.
Data aggregation methods · In reporting Exploration Results, weighting averaging techniques,
maximum and/or minimum grade truncations (eg cutting of high grades) and
cut-off grades are usually Material and should be stated. · Historic grade intercepts as length weighted averages with
downhole lengths reported, appropriate for this stage of drilling.
· Where aggregate intercepts incorporate short lengths of high
grade results and longer lengths of low grade results, the procedure used for · No top cutting of grades has been included
such aggregation should be stated and some typical examples of such
aggregations should be shown in detail.
· The assumptions used for any reporting of metal equivalent values
should be clearly stated.
Relationship between mineralisation widths and intercept lengths · These relationships are particularly important in the reporting · Downhole intercept lengths are expected to be greater than true
of Exploration Results. length
· If the geometry of the mineralisation with respect to the drill · angled drilling has typically been diping 60 degrees to the south
hole angle is known, its nature should be reported. with the mineralization interpreted to be sub vertical at Blue Rose
· If it is not known and only the down hole lengths are reported,
there should be a clear statement to this effect (eg 'down hole length, true
width not known').
Diagrams · Appropriate maps and sections (with scales) and tabulations of · Relevant diagrams have been included in the announcement.
intercepts should be included for any significant discovery being reported
These should include, but not be limited to a plan view of drill hole collar · Exploration results are not being reported for existing mineral
locations and appropriate sectional views. resources.
· Drilling is aimed at defining new mineral resources.
Balanced reporting · Where comprehensive reporting of all Exploration Results is not · Historic results are being assessed during the data migration to
practicable, representative reporting of both low and high grades and/or the Cobra drillhole database.
widths should be practiced to avoid misleading reporting of Exploration
Results. · This announcement is indicative of the results of the geophysical
methods (Induced Polarization) the method does not directly indicate size or
grades of mineralisation
Other substantive exploration data · Other exploration data, if meaningful and material, should be · Geophysical results are the focus of the announcement
reported including (but not limited to): geological observations; geophysical
survey results; geochemical survey results; bulk samples - size and method of
treatment; metallurgical test results; bulk density, groundwater, geotechnical
and rock characteristics; potential deleterious or contaminating substances.
Further work · The nature and scale of planned further work (eg tests for · RC drill program at Blue Rose, Desert Rose and Double Delight in
lateral extensions or depth extensions or large-scale step-out drilling). early January 2026
· Diagrams clearly highlighting the areas of possible extensions, · Follow up diamond drilling at Desert Rose
including the main geological interpretations and future drilling areas,
provided this information is not commercially sensitive. · Greenfields soil sampling program
This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact
rns@lseg.com (mailto:rns@lseg.com)
or visit
www.rns.com (http://www.rns.com/)
.
RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our
Privacy Policy (https://www.lseg.com/privacy-and-cookie-policy)
. END DRLDZGGFLRFGVZM
Copyright 2019 Regulatory News Service, all rights reservedRecent news on Cobra Resources
See all newsREG - Cobra Resources PLC - Outstanding Blue Rose Copper Results - Discovery
AnnouncementREG - Cobra Resources PLC - Total Voting Rights
AnnouncementREG - Cobra Resources PLC - Boland - Industry-Leading Heavy Rare Earth Product
AnnouncementREG - Cobra Resources PLC - Manna Hill Drilling Complete
AnnouncementREG - Cobra Resources PLC - Manna Hill Project Exploration Update
Announcement