Assay results of up to 71 g/t Au at Northern Zone

In brief · summary, not quotable

Oracle Power PLC has announced impressive assay results from 31 drillholes at its Northern Zone Gold Project in Western Australia, with individual metre assay results reaching up to 71 g/t gold. Significant intercepts include 15m at 5.62 g/t Au from 48m and 8m at 9.90 g/t Au from 48m, indicating strong shallow gold mineralisation. The company is advancing towards a Mining Lease conversion for the project, with heritage clearance surveys completed and a Right to Mine and Co-Operation Agreement in place with MEGA Resources Pty Ltd, who will fund development on a 50/50 profit share basis.

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Oracle Power PLC (AIM: ORCP), an international project developer, is pleased to announce assay results from a further 31 drillholes at the Northern Zone Intrusive Hosted Gold Project ("Northern Zone" or the "Project"), located just 25km east of Kalgoorlie in Western Australia (refer to Figure 1 for location). These results represent all the assays from the first drilling campaign of 2026.

Highlights:

Riversgold Limited ("Riversgold") (ASX: RGL) continues to intersect shallow gold mineralisation as we seek to expand the gold footprint of Northern Zone.
These latest results represent some of the best intercepts for grade and width drilled at the Project so far from an individual drilling campaign.
Selected significant results from this latest drilling campaign include:

· 15m at 5.62 g/t Au from 48m (NZAC214)	· 10m at 1.15 g/t Au from 45m (NZAC207)
· 8m at 9.90 g/t Au from 48m (NZAC216)	· 4m at 3.46 g/t Au from 48m (NZAC211)
· 8m at 4.64 g/t Au from 48m (NZAC213)	· 3m at 5.90 g/t Au from 48m (NZAC219)
· 6m at 4.05 g/t Au from 46m (NZAC212)	· 3m at 3.78 g/t Au from 69m (GEO004)
· 10m at 3.81 g/t Au from 30m (GEO004)	· 2m at 4.19 g/t Au from 49m (NZAC221)

As previously announced, conversion of the Northern Zone's tenement to a Mining Lease is well advanced and is expected to occur in the coming weeks.
The necessary heritage clearance surveys over the Project area have recently been completed.
Riversgold has previously signed a Right to Mine and Co-Operation Agreement with MEGA Resources Pty Ltd ("MEGA") in respect of Northern Zone.
MEGA will provide all development and mining funding for Northern Zone on a 50/50 profit share basis.

Naheed Memon, CEO of Oracle, commented:

"These latest results evidence some of the best intercepts for grade and width that have been drilled at the Northern Zone project so far. This last set of drill holes were designed to start testing the shallow 'saddle' area and the results will serve to enhance MEGA Resources' mining scenario for 2026.

"The strong results continue to expand the lateral footprint of the Northern Zone as we seek to make the Project materially bigger in the oxide zone. The more we drill laterally, the more gold we find on the top of this porphyry gold system and these exceptional drill results can guide us towards the next drill programme."

These latest drill campaign results (see Tables 1-3) continue to successfully intersect the mineralised host porphyry over an increasing footprint and consistently validate the broader gold mineralisation model. Gold mineralisation has been intersected and drilling has successfully tested the important area between the central saddle and eastern mineralised zone (Figure 2), with individual metre assay results up to 71 g/t gold.

A key SW-NE cross-section derived from 3D Leapfrog software is illustrated in Figure 3. The updated interpretation illustrates interplant composite gold grade shells derived from all the Riversgold/Oracle gold results already announced by the Company.

<ENDS>

Oracle Power PLC

Naheed Memon - CEO +44 (0) 203 580 4314

Strand Hanson Limited (Nominated Adviser & Broker)

Rory Murphy, Matthew Chandler, Rob Patrick +44 (0) 20 7409 3494

St Brides Partners Limited (Financial PR)

Susie Geliher, Isabel de Salis +44 (0) 20 7236 1177

APPENDIX 1: Drilling Information

Table 1: Northern Zone Significant Intercepts from all air core drill rig drillholes

			Hole ID	From (m)	To (m)	Width (m)	Au g/t	Intercept
NZAC196				57	60	3	0.76	3m @ 0.76g/t Au from 57m, NZAC196
NZAC197				46	54	8	0.69	8m @ 0.69g/t Au from 46m, NZAC197
NZAC198								No significant intercepts
NZAC199								No significant intercepts
NZAC200								No significant intercepts
NZAC201								No significant intercepts
NZAC202				45	46	1	1.64	1m @ 1.64g/t Au from 45m, NZAC202
NZAC203				41	42	1	1.03	4m @ 1.03g/t Au from 41m, NZAC203
NZAC204				49	50	1	1.64	1m @ 1.64g/t Au from 49m, NZAC204
NZAC205				59	60	1	9.33	1m @ 9.33g/t Au from 59m, NZAC205
NZAC206				67	68	1	1.94	1m @ 1.94g/t Au from 67m (EOH), NZAC206
NZAC207				45	55	10	1.15	10m @ 1.15g/t Au from 45m, NZAC207
NZAC208				50	52	2	3.06	2m @ 3.06g/t Au from 50m (EOH), NZAC208
NZAC209								No significant intercepts
NZAC210				48	49	1	1.15	1m @ 1.15g/t Au from 48m, NZAC210
NZAC211				48	52	4	3.46	4m @ 3.46g/t Au from 48m, NZAC211
NZAC212				46	52	6	4.05	6m @ 4.05g/t Au from 46m, NZAC212
NZAC213				48	56	8	4.64	8m @ 4.64g/t Au from 48m, NZAC213
NZAC214				48	63	15	5.62	15m @ 5.62g/t Au from 48m (EOH), NZAC214
NZAC215				49	50	1	3.79	1m @ 3.79g/t Au from 49m, NZAC215
NZAC216				48	56	8	9.9	8m @ 9.90g/t Au from 48m, NZAC216
NZAC217								No significant intercepts
NZAC218				47	49	2	1.45	2m @ 1.45g/t Au from 47m, NZAC218
NZAC219				48	51	3	5.9	3m @ 5.90g/t Au from 48m, NZAC219
NZAC220				51	52	1	1.34	1m @ 1.34g/t Au from 51m, NZAC220
NZAC221				49	51	2	4.19	2m @ 4.19g/t Au from 49m, NZAC221
GEO001								No significant intercepts
GEO002								No significant intercepts
GEO004				30	40	10	3.81	10m @ 3.81g/t Au from 30m, GEO004
GEO004				69	72	3	3.78	3m @ 3.78g/t Au from 69m, GEO004
WB001								No significant intercepts
Table 2: Northern Zone Drill Collar Locations
Hole ID	Type	MGA_E	MGA_N	Elevation (m)	Total Depth (m)	Dip ( o )	AZM_MGA	Date
NZAC195	AC	381700	6592583	356.11	63	0	-90	10-02-26
NZAC196	AC	381712	6592596	356.16	63	0	-90	10-02-26
NZAC197	AC	381722	6592610	356.22	64	0	-90	10-02-26
NZAC198	AC	381715	6592627	356.32	65	0	-90	13-02-26
NZAC199	AC	381728	6592636	356.38	71	0	-90	13-02-26
NZAC200	AC	381742	6592647	356.45	73	0	-90	14-02-26
NZAC201	AC	381756	6592662	356.8	73	0	-90	17-02-26
NZAC202	AC	381808	6592617	356.7	71	0	-90	17-02-26
NZAC203	AC	381811	6592604	356.72	70	0	-90	18-02-26
NZAC204	AC	381812	6592587	356.76	63	0	-90	18-02-26
NZAC205	AC	381833	6592601	356.77	68	0	-90	18-02-26
NZAC206	AC	381854	6592616	356.76	68	0	-90	19-02-26
NZAC207	AC	381853	6592603	356.54	66	0	-90	15-02-26
NZAC208	AC	381853	6592590	356.58	51	0	-90	16-02-26
NZAC209	AC	381832	6592616	356.46	70	0	-90	14-02-26
NZAC210	AC	381831	6592590	356.37	67	0	-90	15-02-26
NZAC211	AC	381888	6592571	356.43	62	0	-90	17-02-26
NZAC212	AC	381888	6592550	356.44	57	0	-90	16-02-26
NZAC213	AC	381901	6592584	356.54	61	0	-90	14-02-26
NZAC214	AC	381910	6592596	356.68	63	0	-90	16-02-26
NZAC215	AC	381923	6592607	356.81	60	0	-90	15-02-26
NZAC216	AC	381931	6592618	356.27	62	0	-90	13-02-26
NZAC217	AC	381933	6592555	356.98	59	0	-90	19-02-26
NZAC218	AC	381943	6592570	356.89	59	0	-90	20-02-26
NZAC219	AC	381951	6592581	356.98	57	0	-90	20-02-26
NZAC220	AC	381959	6592595	357	66	0	-90	19-02-26
NZAC221	AC	381942	6592598	356.88	61	0	-90	20-02-26
GEO001	AC	381836	6592731	356.75	74	0	-90	22-02-26
GEO002	AC	381747	6592527	356.25	56	0	-90	21-02-26
GEO004	AC	381498	6592586	356.85	78	0	-90	21-02-26
WB001	AC	381956	6592684	356.7	72	0	-90	22-02-26

Table 3: Northern Zone assay results above 0.3 g/t Au from all air core drill holes

Hole ID	Depth From (m)	Depth To (m)	Width (m)	Au ppm
NZAC195	36	37	1	0.4
NZAC196	31	32	1	0.55
NZAC196	35	36	1	0.3
NZAC196	36	37	1	0.7
NZAC196	54	55	1	0.35
NZAC196	57	58	1	0.5
NZAC196	58	59	1	1.37
NZAC196	59	60	1	0.42
NZAC197	46	47	1	2.56
NZAC197	51	52	1	1.43
NZAC197	52	53	1	0.69
NZAC197	53	54	1	0.3
NZAC197	63	64	1	0.39
NZAC198	46	47	1	0.45
NZAC200	50	51	1	0.33
NZAC201	43	44	1	0.3
NZAC202	45	46	1	1.64
NZAC203	41	42	1	1.1
NZAC203	44	45	1	2.91
NZAC204	44	45	1	0.37
NZAC204	49	50	1	1.64
NZAC205	40	41	1	0.6
NZAC205	47	48	1	0.5
NZAC205	49	50	1	0.57
NZAC205	58	59	1	9.33
NZAC206	33	34	1	0.42
NZAC206	67	68	1	1.94
NZAC207	45	46	1	0.83
NZAC207	49	50	1	0.64
NZAC207	51	52	1	9.23
NZAC207	54	55	1	0.33
NZAC208	49	50	1	1.02
NZAC208	50	51	1	5.09
NZAC209	44	45	1	0.75
NZAC209	49	50	1	0.53
NZAC210	45	46	1	0.31
NZAC210	48	49	1	1.15
NZAC210	49	50	1	0.52
NZAC211	48	49	1	1.09
NZAC211	50	51	1	11.43
NZAC211	51	52	1	1.27
NZAC212	46	47	1	1.86
NZAC212	48	49	1	2.88
NZAC212	49	50	1	3.64
NZAC212	50	51	1	15.08
NZAC212	51	52	1	0.78
NZAC213	42	43	1	0.56
NZAC213	48	49	1	0.57
NZAC213	50	51	1	1.54
NZAC213	51	52	1	32.12
NZAC213	52	53	1	0.8
NZAC213	53	54	1	0.93
NZAC213	55	56	1	0.96
NZAC214	48	49	1	0.42
NZAC214	49	50	1	0.44
NZAC214	50	51	1	0.94
NZAC214	51	52	1	68.12
NZAC214	52	53	1	7.77
NZAC214	53	54	1	0.97
NZAC214	54	55	1	0.97
NZAC214	55	56	1	0.46
NZAC214	56	57	1	0.62
NZAC214	57	58	1	0.3
NZAC214	60	61	1	0.68
NZAC214	61	62	1	1.5
NZAC214	62	63	1	0.6
NZAC215	37	38	1	0.47
NZAC215	49	50	1	3.79
NZAC215	57	58	1	0.39
NZAC216	48	49	1	0.47
NZAC216	50	51	1	3.82
NZAC216	51	52	1	71
NZAC216	52	53	1	0.99
NZAC216	53	54	1	1.83
NZAC216	55	56	1	0.78
NZAC217	44	45	1	0.6
NZAC218	47	48	1	1.77
NZAC218	48	49	1	1.13
NZAC219	48	49	1	15.87
NZAC219	49	50	1	0.42
NZAC219	50	51	1	1.41
NZAC220	48	49	1	0.36
NZAC220	49	50	1	0.4
NZAC220	51	52	1	1.34
NZAC221	37	38	1	0.47
NZAC221	42	43	1	0.41
NZAC221	49	50	1	6.14
NZAC221	50	51	1	2.24
GEO004	30	31	1	1.85
GEO004	31	32	1	0.67
GEO004	32	33	1	16.67
GEO004	33	34	1	8.15
GEO004	34	35	1	1.24
GEO004	35	36	1	4.21
GEO004	36	37	1	1.27
GEO004	38	39	1	3.36
GEO004	39	40	1	0.39
GEO004	56	57	1	0.7
GEO004	57	58	1	0.46
GEO004	58	59	1	0.73
GEO004	59	60	1	0.31
GEO004	69	70	1	8.55
GEO004	70	71	1	2.36
GEO004	71	72	1	0.43
WB001	40	41	1	0.39
WB001	44	45	1	0.31
WB001	47	48	1	0.61
Section 1: Sampling Techniques and Data
(Criteria in this section applies to all succeeding sections)
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 sondes, or handheld XRF instruments, etc.). These examples should not be taken as limiting the broad meaning of sampling. 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 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 (eg submarine nodules) may warrant disclosure of detailed information.	Every metre drilled was placed on the ground. 6m composites were collected using a scoop method of sampling the coarse reject sample for the first 24m. 1m sampling using a rifle splitter was trialled on the clays, from 24m, with sampling deemed to create a high degree risk of smearing. The clays are not wet, but have a damp characteristic. A large metal scoop was used to sample between 70-90% of material from each metre drilled, to total between 2-3kg samples. Standard reference material, sample duplicates and blanks, were undertaken at 25m sample intervals. Samples were sent to the laboratory for crushing, splitting and analysis. Analysis was undertaken by Jinnings laboratories (Kalgoorlie) for gold assay by 50g fire assay.
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.).	Australian Aircore Drilling completed the programme using a blade to refusal.
Sub-sampling techniques and sample preparation			If core, whether cut or sawn and whether quarter, half or all core taken. If non-core, whether riffled, tube sampled, rotary split, etc. and whether sampled wet or dry. For all sample types, the nature, quality and appropriateness of the sample preparation technique. Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples. Measures taken to ensure that the sampling is representative of the in-situ material collected, including for instance results for field duplicate/second-half sampling. Whether sample sizes are appropriate to the grain size of the material being sampled.	1m sampling using a rifle splitter was trialled on the clays, from 24m, with sampling deemed to create a high degree risk of smearing. The clays are not wet, but have a damp characteristic. A large metal scoop was used to sample between 70-90% of material from each metre drilled, to total between 2-3kg samples. Standard reference material, sample duplicates and blanks, were undertaken at 25m sample intervals. Samples were sent to the laboratory for crushing, splitting and analysis. The use of fire assay with 50g charge for all AC drilling provides a level of confidence in the assay database. The sampling and assaying are considered representative of the in-situ material. The sample size of 2-3 kilograms is appropriate and representative of the grain size and mineralisation style of the deposit.
Quality of assay data and laboratory tests			The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total. 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. 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.	Jinnings (Kalgoorlie) were used for all analysis of drill samples submitted by Riversgold. The laboratory techniques below are for all samples submitted to Jinnings and are considered appropriate for the style of mineralisation defined within the Northern Zone project area: Samples above 3kg were riffle split. Pulverise to 95% passing 75 microns 50-gram Fire Assay (FA50A) - Au Duplicates, Standards and Blanks were used for external laboratory checks by RGL

Section 2: Reporting of Exploration Results

(Criteria listed in the preceding section also apply to this section)

Criteria	JORC Code explanation	Commentary
Mineral tenement and land tenure status	Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings. 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.	The Northern Zone Project is comprised of one granted prospecting licence (P25/2651) which covers an area of 82 hectares, and is held in the name of Riversgold (Australia) Pty Ltd 80/100, Oracle Gold (WA) Pty Ltd 20/100. The JV documents are to be formalised. Oracle currently contribute pro-rata at 20% of all costs, and have the option to dilute.
Exploration done by other parties	Acknowledgment and appraisal of exploration by other parties.	The majority of previous exploration in the area was by Northern Mining during 2007 to 2012 under the Blair North project, multiple small resource areas were identified at the George's Reward area to the south of P25/2651. Numerous gold intersections were recorded.
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. Where aggregate 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. The assumptions used for any reporting of metal equivalent values should be clearly stated.	Intersections are weighted average grades based on a 0.001 g/t Au cut-off with unlimited waste zones but with a targeted grade of 0.4-0.6g/t Au.
Relationship between mineralisation widths and intercept lengths	These relationships are particularly important in the reporting of Exploration Results. If the geometry of the mineralisation 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 (eg 'down hole length, true width not known').	The diamond drilling programme in 2023 confirmed the apparent widths of mineralisation as being perpendicular to foliation and veining. Step out RC drilling to be the same as the diamond drilling. Mineralisation has been determined from structural logging to be horizontal and vertical drilling is therefore true width drilling.
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 plan view of drill hole collar locations and appropriate sectional views.	See body of the announcement for relevant diagrams and photos. Figure 3: Cross-section of 3D Leapfrog software model. The interpretation illustrates gold grade shells, derived from all of the Riversgold/Oracle gold grades (au ppm) reported to the ASX to March 2026. The model is constrained via a 50m buffer to all the Riversgold/Oracle drill hole traces that have been drilled at Northern Zone since 2021. Refer to Figure 2 Drill collar plan for the location of the section line. Figure 2: Plan view of Leapfrog software model. The interpretation illustrates gold grade shells, derived from all of the Riversgold/Oracle gold grades (au ppm) reported to March 2026. The figure illustrates the position of the Cross-section in Figure 3, and the location of the significant intercepts reported from the most recent AC drilling programme. There are multiple areas that remain undrilled as noted on the diagram, with mineralisation yet to be confirmed.
Further work	The nature and scale of planned further work (e.g. tests for lateral extensions or depth extensions or large-scale step-out drilling). Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive.	· Follow up phases of drilling to further test open mineralisation, laterally and at depth. · Complete a Mine Development and Closure Plan (MDCP)

Cleaned text: letterheads, contacts and legal notices removed. View the original announcement ↗ · Company filings. Not investment advice.