9 September 2025

Power Metal Resources PLC

("Power Metal" or the "Company")

Block 8 Oman: Drilling Programme and Geophysics Results

Power Metal Resources PLC (AIM: POW, OTCQB: POWMF), the London listed exploration company and project incubator with a global project portfolio, and its majority held subsidiary Power Arabia Ltd ("Power Arabia"), is pleased to provide an update on the updated gravimetry geophysical survey results and maiden drilling programme on the Block 8 exploration concession in Oman ("Block 8" or the "Project"), further to the Ministry of Energy and Minerals Oman issuing a 1 year renewal of Block 8 on 30 May 2025.

Highlights:

·    Maiden reconnaissance diamond core drilling programme is scheduled to commence on 15 September 2025, with an initial 9 drill holes planned to test targets generated through Power Arabia's exploration work.

·    In-fill and extension gravimetry geophysics ("Gravity") survey completed over Al Mansur Prospect.

·    Updated Gravity survey defined two strong anomalies:

o  AM1: The highest gravimetric anomaly peaking at 0.56 milligal ("mGal") of contrast with a north south orientation that may be associated with possible massive sulphide mineralisation (the "AM1 Target"); and

o  AM2: The second joint highest gravimetric anomaly with a similar peak of 0.56 mGal of contrast and a north south orientation that may be associated with possible massive sulphide mineralisation or may constitute an extension of AM1. AM2 is open on strike to the northeast.

·    AM1 and AM2 combined provide close to 700 metres ("m") of highly anomalous target strike length at Al Mansur.

Block 8 is the subject of an Agreement for Power Metal to earn a 12.5% stake in the Project held by ASX listed Alara Resources Limited ("Alara") and Awtad Copper LLC ("Awtad Copper"). The exploration work, led and undertaken by the Power Arabia technical team, commenced in October 2024 following the signing of a formal and legally binding agreement on 25 October 2024.^{1, 2}

The gravimetry geophysics method is used to measure gravitation field variations which correspond to density changes which can be associated with subsurface mineral deposits, such as massive sulphide, as well as geological structures and volcanic intrusions.

Sean Wade, Chief Executive Officer of Power Metal Resources plc, commented: 

"I am pleased to report on further progress at Power Arabia's flagship project. The Gravity survey results have been encouraging, highlighting two highly anomalous targets, and I look forward to the commencement of the maiden drill programme, which will help enhance our understanding of the mineralisation whilst providing an initial indication of potential width, grade and strike related to these exciting anomalies."

Alara Managing Director Atmavireshwar Sthapak said: 

"We are pleased to report that exploration activities over Block 8 have now advanced to the critical target-testing phase through core drilling. The Al Mansur prospect, first identified in Alara's 2012 exploration program and more recently refined through gravity surveys, has yielded several anomalous targets now ready for drilling.

Alara commends its partners at Power Metals for their strategic and effective exploration efforts and remains committed to advancing exploration in Block 8. Through planned investment alongside Power Metals, Alara also intends to increase its stake in the joint venture. We look forward to working closely with all our partners in the pursuit of new copper discoveries in Oman."

Figure 1: Location of Block 8 Licence Area in Oman.

In-fill and Extension Ground Gravity Survey

Based on the positive findings of the Al Mansur Gravity survey (announced 17 April 2025), Power Arabia commissioned Oman based geological consultancy National Rocks to conduct an in-fill and extension survey to better delineate the previously defined H1 gravimetric high anomaly (now renamed AM1), with a view to optimising drill targets for a maiden reconnaissance drilling programme.³

The infill and extension work conducted during July 2025 comprised a further 348 survey points using an CG-5 Autograv Gravity Meter and a differential GPS, on a nominal 50m x 50m grid, infilling the previous NNE orientated 100 m x 50 m grid, and extending survey coverage north and eastwards (Figure 2). The new survey data was combined with the existing data for reprocessing and interpretation. Both the initial survey and in-fill work was undertaken by National Rocks to maintain operational consistency.

Figure 2: Detail of in-fill and extension Gravity survey sample points (yellow) at Al Mansur Prospect

The Al Mansur Prospect was originally identified by Alara who conducted chip sampling over areas of surface copper mineralisation.  Power Arabia confirmed the prospectivity through trench sampling and geological and structural mapping work. The Gravity survey was designed to delineate the predicted location of possible mineralisation buried under transported overburden along strike from the outcropping copper mineralisation located at surface on the southern boundary of the Al Mansur prospect.⁴

The results of the Gravity in-fill and extension work have confirmed that the previously identified H1 Target, now named AM1, is a very strong north-south orientated Residual Anomaly on the eastern side of the survey area, which may be associated with potential volcanogenic massive sulphide ("VMS") mineralisation.⁵

The AM1 anomaly comprises a very high gravimetric anomaly peaking at 0.58 mGal of contrast, whilst the newly identified AM2 target also comprises a very high gravimetric north-south orientated anomaly of up to 0.56 mGal of contrast and may also be associated with possible massive sulphide mineralisation or may represent an extension of AM1.

AM2 remains open on strike to the northeast and there is now close to 700m of highly anomalous strike length target at Al Mansur.

There is evidence of a possible northwest southeast structure in the Al Mansur area which could mean that the AM1 and AM2 targets are part of the same mineralised unit which may have been divided by faulting, or they could represent two distinct bodies with the same gravimetric response and potential.

Figure 3: Residual Ground Gravimetric Anomalies over the In-fill and Extension Survey Area

Maiden Drill Programme

Further to the positive results of the ground Gravity in-fill and extension programme, the surface copper mineralisation in the trenches and rock chips directly on the southern limit of the AM1 anomaly, Power Arabia has planned a maiden reconnaissance diamond core drill programme on the Al Mansur target as a key next phase of exploration and mineralisation definition.

The drilling is planned to test for mineralisation and provide an initial indication of potential width, grade and strike related to the identified anomalies.

Both target anomalies are deemed to dip to the west hence drill holes are planned to drill from west to east to ensure maximum cross cutting of the target rather than drilling 'along' it.

The planned programme comprises an initial 9 holes for a total of 750 m of HQ core diameter diamond drilling arranged on three broadly NW-SE orientated fence lines (see Figure 4 and Table 1) over the AM1 anomaly (6 holes) and AM2 anomaly (3 holes). The drill holes are arranged on a heel to toe basis along each fence line, with three holes per line planned to ensure complete drill testing of each of the two targeted anomalies. The heel to toe concept will also ensure the entire cross section of the anomaly is fully tested should the dip of the target body not be as predicted; this method should also negate the possibility of 'missing' any mineralisation present below that fence line.

Power Arabia obtained three drilling contractor quotes for the work, with the final choice of drilling company made based on their availability, experience and cost.

All necessary environmental and local permits have been granted to support this programme.

Power Arabia have robust environmental and health and safety systems in place, as do the drilling company, to ensure full compliance with all regulatory requirements.

The programme is scheduled to commence on the 15 September 2025.

Table 1: Planned Maiden Drilling programme, Al Mansur Prospect, Block 8, Oman, September 2025

Figure 4: Location of Planned Maiden Drill Holes on the Al Mansur Prospect

Power Arabia will provide further updates on receipt of a series assay results for stream sediment, ionic leach, trench and rock chip samples, and continues to expand knowledge and target identification on Block 8.

Other

In addition to the Al Mansur exploration work and drilling outlined above, Power Arabia have next stage exploration plans for target areas 2, 4 and 5 (Figure 5) which all warrant more detailed exploration to fully test and ascertain if more potential discoveries are present.

Power Arabia looks forward to providing further updates on this programme and other developments on Block 8.

Figure 6 shows the current surface copper anomalies defined over the geology and this is a key prospect for follow up exploration work to lead to a reconnaissance drilling programme. In-fill mapping and rock chip sampling is planned along with a tight spaced Ground Gravity Survey to help delineate a robust drill target followed by actual drilling.

Figure 5: Summary of Block 8 Exploration Targets

Figure 6: Al Maider Prospect Rock-Chip and Grab Sample Results >0.4% Copper

REFERENCES

1:            Company announcement, Non-binding Heads of Terms signed with Alara Resources & Awtad Copper, dated 25 October 2024

                ( https://polaris.brighterir.com/public/power_metal_resources/news/rns/story/xpd67mx).

2:            Company announcement, Agreement with Alara Resources & Awtad Copper, dated 25 October 2024
( https://polaris.brighterir.com/public/power_metal_resources/news/rns/story/rd8z59w ).

3:            Company announcement, Block 8 Oman: Initial Ground Gravimetric Survey Results, dated 17 April 2025
( https://polaris.brighterir.com/public/power_metal_resources/news/rns/story/w9l86pw ).

4:            Company announcement, Block 8 Oman: Exploration Update, dated 30 January 2025
( https://polaris.brighterir.com/public/power_metal_resources/news/rns/story/xl4lmpr ).

5:            Volcanic-associated or VMS deposits range from lens shaped to sheet-like bodies of sulphide-mineral-rich rock spatially associated with volcanic rocks ranging in composition from basalt to rhyolite. VMS deposits can be divided into three general categories: Cyprus-type; Kuroko type; and Besshi-type. Cyprus-type deposits tend to be small, medium-grade deposits rich in copper and zinc. They are generally lens or mound shaped accumulations of massive pyrite developed in ophiolite-related, extrusive basalt sequences. They are typically underlain by copper-rich "stringer-zones" composed of anastomosing quartz-sulphide mineral veins in extensively chloritised basalt.
( https://pubs.usgs.gov/of/1995/ofr-95-0831/CHAP16.pdf )

QUALIFIED PERSON STATEMENT

The technical information contained in this disclosure has been read and approved by Mr Nick O'Reilly (MSc, DIC, MIMMM QMR, MAusIMM, FGS), who is a qualified geologist and acts as the Qualified Person under the AIM Rules - Note for Mining and Oil & Gas Companies. Mr O'Reilly is a Principal consultant working for Mining Analyst Consulting Ltd which has been retained by Power Metal Resources PLC to provide technical support.

For further information please visit https://www.powermetalresources.com/ or contact:

NOTES TO EDITORS

Power Metal Resources plc (AIM: POW, OTCQB: POWMF) is a London-listed metals exploration company which finances and manages global resource projects and is seeking large scale metal discoveries.

The Company has a principal focus on opportunities offering district scale potential across a global portfolio including precious, base and strategic metal exploration in North America, Africa, Saudi Arabia, Oman and Australia.

Project interests range from early-stage greenfield exploration to later-stage prospects currently subject to drill programmes.

Power Metal will develop projects internally or through strategic joint ventures until a project becomes ready for disposal through outright sale or separate listing on a recognised stock exchange thereby crystallising the value generated from our internal exploration and development work.

Value generated through disposals will be deployed internally to drive the Company's growth or may be returned to shareholders through share buy backs, dividends or in-specie distributions of assets.