REG - Geo Exploration Ltd - Juno Project – Results of Geophysical Modelling

GEO ExplorationAnnouncement

28/05/2025 07:00

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RNS Number : 2016K  Geo Exploration Limited  28 May 2025

 28 May 2025

 GEO Exploration Limited
 (Formerly Global Petroleum Limited)
 ("GEO " or the "Company")
 Juno Project - Results of Geophysical Modelling

 Key Highlights

 - Integrated 3-D magnetic-and-gravity modelling has refined an IRGS style
 target and places the top    of the primary body approximately 600m below
 surface

 - Unconstrained and forward models converge on a single, coherent footprint
 spanning roughly 4 km × 2 km, confirming the system's large scale

 - Historic hole PHD001 stopped just short of the newly modelled body,
 highlighting immediate drill potential

 - Ground-based electrical geophysics starts next with data to allow
 finalisation of drillhole locations ahead of Juno's maiden drilling programme
 in the coming months

 GEO Exploration Limited (LSE AIM: GEO) is pleased to announce positive results
 of geophysical modelling at its Juno project. The Juno project is located in
 central Western Australia where the company is conducting exploration for
 large Intrusion Related Gold Systems (IRGS) which host precious and base metal
 mineralisation.

 Between late 2024 and early 2025, the Company collected airborne geophysical
 and ground-gravity data at the Juno Project; results were announced on 16
 January 2025 (RNS) and showed a significant gravity response at Juno, aligning
 with a prominent magnetic feature, covering an area of 4km x 2km. This
 alignment (coincident response) is a typical signature of IRGS style
 mineralisation.

 The detailed magnetic and gravity data sets have recently been further
 integrated and modelled to refine IRGS type mineralisation targets with
 accurate 3D spatial definition. Encouraging results have been achieved from
 independent unconstrained and forward modelling techniques demonstrating the
 large size of the target and robust data set.

 Unconstrained 3D Modelling confirms the alignment of magnetic and gravity
 modelled bodies (Figure 1), and that the size of the modelled bodies is large,
 covering a footprint of approximately 4km x 2km. These results are consistent
 with preliminary reviews completed in early 2025.

 Forward Modelling of the detailed magnetic and gravity data sets was carried
 out independently during April and May 2025. This modelling technique is the
 same used for the Havieron IRGS deposit (+8Moz gold equivalent) prior to
 drilling of discovery holes during 2018. Results of forward modelling at Juno
 define a chain of contiguous bodies over a strike of several kilometres
 (Figure 2) which are considered the primary target.

Figure 1 - Juno Project 3D unconstrained results showing coincident magnetic
 and gravity model bodies

 Model bodies from Forward Modelling sit tightly within the envelope of the
 Unconstrained Model bodies. That is, the output of the two independent
 modelling techniques are aligned, providing a high degree of confidence in the
 output.

 A very good fit for magnetic and gravity data was seen in the Forward
 Modelling model body profiles (Figure 3). Depth to top of primary target
 modelled bodies is approximately 600m below surface showing that a historic
 deep drillhole (PHD001) was terminated just short of the primary target
 despite showing proximal alteration and sulphide mineralisation suggesting
 'close to source'.

Figure 2 - Juno Project 3D Forward Modelling results showing primary target

Figure 3 - Juno Project Forward Modelling Profile 17 showing primary target
 model body 19

 The Company is using an IRGS exploration model seeking to locate precious and
 base metal mineralisation, similar to that at the Havieron and Telfer deposits
 in northern Western Australia. Activities at Juno to date include recently
 announced aeromagnetics, lidar, ground gravity, and unconstrained and forward
 modelling of data.

 Ongoing work at Juno will include ground based electrical geophysical surveys
 to detect subsurface conductive material. Models derived from the exploration
 data sets will enable enhanced targeting of drillholes in advance of the
 Company's initial drilling programme at Juno.

 Callum Baxter, Geo's joint venture partner commented:

 "It is very pleasing that modelling has provided excellent results in our
 targeting efforts for IRGS style mineralisation at Juno. The detailed data
 sets recently collected have allowed the generation of robust 3D models which
 demonstrate the large size of the Juno target. I look forward to the imminent
 start of ground electrical geophysics furthering our collaborative efforts at
 Juno."

 Omar Ahmad, CEO of Geo Exploration Limited, commented:

 "These integrated modelling results deliver exactly what we hoped for: a
 coherent, large-scale target validated by two independent techniques. We have
 always had high conviction in both the Juno asset and the world class team
 driving it forward. We are moving swiftly into ground IP and EM to enhance
 drillhole targets and are scheduled to commence our first drilling at Juno in
 the coming months. This is a very exciting time for Geo and our aim is deliver
 a significant valuation uplift through our portfolio of projects."

 COMPETENT PERSON - The information in this announcement relating to the
 project is deemed to be a true representation of the exploration results. Mr
 Steven Andrew Milner has sufficient experience, to qualify as a Competent
 Person as defined in the 2012 Edition of the Joint Ore Reserves Committee
 (JORC) "Australasian Code for Reporting of Exploration Results, Mineral
 Resources and Ore Reserves". Steven is a member of the Australasian Institute
 of Mining and Metallurgy (M.Aus.lMM #109255), is employed as a consultant with
 Austwide Mining Title Management Pty Ltd and is a graduate of Durham
 University and has over 40 years of experience in exploration and mining in
 Australia, Zimbabwe and Namibia. Steven is a Director of Mineral Search Pty
 Ltd.

 The information contained within this announcement is deemed by the Company to
 constitute inside information under the UK Market Abuse Regulations ("MAR").
 Upon the publication of this announcement via a Regulatory Information Service
 ("RIS"), this inside information is now considered to be in the public domain.

 For further information please visit: www.geoexplorationlimited.com
 (http://www.geoexplorationlimited.com) or contact:

 GEO Exploration Limited                                                     investors@geoexpltd.com

 Hamza Choudhry, CFO and Executive Director

 SPARK Advisory Partners Limited (Nominated Adviser)                         +44 (0) 20 3368 3555

 Andrew Emmott, Jade Bayat

 CMC Markets (Joint Broker)                                                  +44 (0) 20 3003 8632

 Douglas Crippen

 SI Capital Limited                                                          +44 (0) 14 8341 3500

 Nick Emerson

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