Aton Reports the Continuation of Strong Mineralisation at Depth at the Semna Project, Including 3.65 g/t of Gold Over an Interval of 25 Metres

Evidence · text

“Sampling methodology and analysis Please also refer to the "Sampling and analytical procedures" section below for full details of the sampling procedures, and also the news release dated July 2, 2025, for further information on sampling methodologies. All drill holes were sampled at the rig, with individual 1m length samples being captured into bulk plastic bags. Sampling of each and every hole was undertaken in their entirety at 1 metre intervals. Aton field crews then combined 4m intervals into composite samples, thoroughly mixing and homogenising the samples. These 4m composite samples were then split down to c. 500-1,000g samples which were dispatched from site for gold fire assay analysis. Upon receipt of the initial 4m composite assay results, selected 1m mineralised intervals were then sent to the laboratory for additional gold fire assaying, as well as for analysis of silver and copper. After the results of these 1m split samples were received, additional samples were selected and dispatched for metallic screen fire assay analysis. Hole SMP-091 Depth (m) 4m composites 1m splits Screen fire assays From To Au (g/t) 1 Au (g/t) 2 Ag (g/t) Cu (ppm) Au (g/t) 3 16 17 1.26 0.02 0.2 54 - 17 18 0.04 0.2 64 - 18 19 0.22 <0.2 193 0.13 19 20 6.71 1.3 849 7.77 20 21 4.18 23.90 3.2 264 29.10 21 22 0.35 0.6 266 0.38 22 23 0.07 0.3 89 0.06 23 24 0.05 0.4 36 0.03 24 25 1.26 2.21 1.0 190 2.11 25 26 1.01 0.4 33 1.07 26 27 1.26 0.69 0.4 22 0.66 27 28 1.26 0.68 0.4 203 0.56 28 29 0.80 2.13 0.3 28 0.76 29 30 0.36 0.4 53 0.31 30 31 0.80 2.98 0.5 69 3.11 31 32 0.80 0.06 <0.2 37 - Notes: Gold analysis by ALS code Au-AA23 (conventional fire assay, 30g charge, with an AA finish) Gold analysis by ALS code Au-AA23 (conventional fire assay, 30g charge, with an AA finish) Gold analysis by ALS code Au-SCR24 (metallic screen fire assay, 1kg sample) Table 2: Compiled assay results, SMP-091, 16-32m An example of the assays received from the 3 different sampling phases/assaying methods is presented in Table 2 above, showing the mineralised intersection from hole SMP-091 on the Adit Vein West, between 16-32m. It is noted that in the bulk 4m composite assays indicate a broad zone of relatively low-grade gold mineralisation between 16-32m. Both the 1m conventional fire assays and screen fire assays demonstrate a core of higher grade mineralisation between 19-21m associated with an oxidised quartz vein, within a halo of lower grade mineralisation associated with weathered rock and subsidiary quartz veins (Figure 5): Figure 5: RC percussion chips from hole SMP-092, showing the mineralised interval between 19-31m, associated with zones of quartz veining and oxidation. Note the higher grade vein between 19-21m Figure 6: Comparison between mineralised intervals from the 4m composite samples and the 1m split samples, holes SMP-049 to SMP-092 Analysis of the assay data continues to shows a generally very close correlation between the 1m split sample intersections and the 4m composite sample intersections, with the trendline showing a 97% correlation between the 2 sets of samples for the entire phase 3a RC drill programme (holes SMP-049 to SMP-092, Figure 6). This very close and accurate correlation indicates the validity of the sampling methodologies employed, as well as the accuracy of the assays received from both the initial 4m composite samples and the subsequent 1m split samples. Similarly the correlation between the conventional fire assay results and the screen fire assay results is plotted below in Figure 7. The 94% correlation between the screen fire assay and conventional fire assay results over the entire phase 3a programme is again quite good. Figure 7: Comparison between conventional fire assay (Au-AA23) and metallic screen fire assay results (Au-SCR24), holes SMP-049 to SMP-092 Sampling and analytical procedures The RC drill holes were drilled at 5½" size (138-140mm diameter), using an Explorac 100 RC drilling rig, operated by Capital Limited. The rig was equipped with an onboard cone splitter which was set to produce 2 separate 1/8 split samples ("L" - laboratory and "R" - retain) which were collected into cloth bags directly from the splitter. The remaining c. 75% of the bulk percussion chip samples was collected directly from the cyclone into pre-written large plastic bags every metre, numbered with the hole number and hole depths. The bulk sample bags were laid out sequentially at the drill site. Between each metre of drilling the cyclone was cleaned out with compressed air, and the hole was blown clean to reduce the risk of downhole contamination. The bags were logged on the drill sites by Aton geologists. A representative sample of each metre was washed and stored in marked plastic chip trays, each containing 20m of samples, photographed, and retained onsite as a permanent record of the drill hole, with the bulk sample bags being retained at the drill sites. The 1m "L" split samples, weighing approximately 4-5kg each were then transported to the Abu Marawat sample processing facility, where they were 1/2 riffle split into 2 separate sub-samples, weighing approximately 2-2.5kg. One of these sub-samples was marked and labelled, and retained at the laboratory for storage. The second 1m sub-samples were then combined into 4m composite samples, weighing approximately 8-10kg. These were thoroughly mixed and homogenised and again riffle split to produce nominal c. 500-1,000g 4m composite samples which were dispatched to ALS Minerals for analysis. Again the splitter was cleaned with compressed air between each sample. The 4m composite samples were allocated new sample numbers. The bulk reject material from the riffle split 4m composite samples was disposed of. QAQC samples were inserted into the 4m composite sample stream at a rate of approximately 1 certified reference material (or "standard" sample) every 60 samples, 1 blank sample every 30 samples, and 1 field duplicate split sample ("L" bag) or replicate sample (taken from the "R" bag) every 30 samples. The "R" bags were retained separately onsite and stored at the Abu Marawat sample storage facility. The dried and split 4m composite samples were shipped to ALS Minerals sample preparation laboratory at Marsa Alam, Egypt, where they were pulverised to a size fraction of better than 85% passing 75 microns. From this pulverised material a further sub-sample was split off with a nominal c. 100g size, which was shipped on to ALS Minerals at Rosia Montana, Romania for analysis. The reject pulp material was returned to the sample preparation facility at Rodruin, where it is also retained onsite The 4m composite samples were analysed for gold by fire assay (30g charge) with an atomic absorption spectroscopy ("AAS") finish (analytical code Au-AA23). Any high grade gold samples (>10 g/t Au) were re-analysed using analytical code Au-GRA22 (also fire assay, with a 50g charge, and with a gravimetric finish). Following receipt of the assay results of the 4m composite assay results, selected 1m mineralised intervals were then selected with a further c. 500-1,000g sub-sample being split off from the retained material from the "L" bags, and again allocated new sample numbers. QAQC samples were inserted into the 1m split sample stream at a rate of approximately 1 certified reference material/standard sample every 30 samples, 1 blank sample every 15 samples, and 1 field duplicate or replicate sample every 15 samples. The remaining material from the "L" bags was again retained onsite at Abu Marawat. The 1m split samples were again sent to ALS Minerals Egypt for sample preparation and on to ALS Romania for gold, silver and copper analysis. Gold was again analysed using Au-AA23 and Au-GRA22 for overlimit assays. Samples were also analysed for silver and copper using an aqua regia digest followed by an AAS finish (analytical codes Ag-AA45 and Cu-AA45). Following receipt of the assay results of the 1m composite assay results, a number of further samples were then selected from the mineralised intervals, with a further c. 1,000g sub-sample being split off from the retained "R" bags, and these samples were again allocated new sample numbers. The residual material from the "R" bags was re-bagged, and was again retained onsite at Abu Marawat. This second tranche of 1m split samples were again sent to ALS Minerals Egypt who arranged for transport directly on to ALS Romania for metallic screen fire assay analysis for gold (analytical code Au-SCR24). No QAQC samples were inserted into this sample stream. About Aton Resources Inc. Aton Resources Inc. (TSXV:AAN) is focused on its 100% owned Abu Marawat Concession ("Abu Marawat"), located in Egypt's Arabian-Nubian Shield, approximately 200 km north of Anglogold Ashanti's world-class Sukari gold mine. Aton has identified numerous gold and base metal exploration targets at Abu Marawat, including the Hamama deposit in the west, the Abu Marawat deposit in the northeast, and the Rodruin deposit in the south of the Concession. Two historic British gold mines are also located on the Concession at Semna and Sir Bakis. Aton has identified several distinct geological trends within Abu Marawat, which display potential for the development of a variety of styles of precious and base metal mineralisation. The Abu Marawat exploitation lease is 57.66 km 2 in size, covering the Hamama West and Rodruin mineral deposits, and was established In January 2024 and is valid for an initial period of 20 years. The Concession also includes an additional 255.0 km 2 of exploration areas at Abu Marawat, retained for a further period of 4 years from January 2024. Abu Marawat is located in an area of excellent infrastructure; a four-lane highway, a 220kV power line, and a water pipeline are in close proximity, as are the international airports at Hurghada and Luxor. Qualified person The technical information contained in this News Release was prepared by Javier Orduña BSc (hons), MSc, MCSM, DIC, MAIG, SEG(M), Chief Geologist of Aton Resources Inc. Mr. Orduña is a qualified person (QP) under National Instrument 43-101 Standards of Disclosure for Mineral Projects. For further information regarding Aton Resources Inc., please visit us at www.atonresources.com or contact: TONNO VAHK Chief Executive Officer Tel: +1 604 318 0390 Email: info@atonresources.com Note Regarding Forward-Looking Statements Some of the statements contained in this release are forward-looking statements. Since forward-looking statements address future events and conditions; by their very nature they involve inherent risks and uncertainties. Actual results in each case could differ materially from those currently anticipated in such statements. Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release. Appendix A - Semna phase 3a RC drill hole collar details, SMP-074 to SMP-092 Hole ID Collar co-ordinates 1,2 EOH depth (m) Dip Grid azimuth Comments / Target X Y Z SMP-074 558794.6 2924743.0 565.4 80 -44.3 130.6 Offset Vein SMP-075 558827.3 2924741.3 558.9 60 -49.4 306.0 MVZ-EX SMP-076 558986.0 2924863.4 563.5 80 -44.1 310.4 MVZ-EX / NE shear SMP-077 558996.6 2924879.8 563.2 100 -41.1 308.2 MVZ-EX / NE shear SMP-078 558999.6 2924855.3 563.8 160 -58.3 311.5 MVZ-EX / NE Shear SMP-079 558577.8 2924727.4 638.1 132 -51.4 47.7 MVZ SMP-080 558574.0 2924731.1 638.0 130 -49.2 357.1 MVZ SMP-081 558563.9 2924658.1 651.6 200 -48.5 21.3 CVZ / MVZ SMP-082 559000.6 2924875.2 563.1 150 -53.9 310.0 MVZ-EX / NE Shear SMP-083 559047.1 2924834.6 576.0 250 -60.2 288.2 MVZ-EX / NE Shear SMP-084 558966.0 2924705.1 598.0 280 -53.1 335.7 MVZ-EX SMP-085 558933.3 2924697.0 595.5 220 -54.0 295.8 MVZ-EX / Offset Vein SMP-086 558932.1 2924694.0 595.5 227 -59.9 290.3 MVZ-EX / Offset Vein SMP-087 558962.2 2924705.9 597.9 296 -60.3 289.3 MVZ-EX / Offset Vein SMP-088 558808.5 2924609.9 572.1 218 -56.0 354.6 MVZ-EX / Offset Vein SMP-089 558743.1 2924673.4 604.1 95 -42.4 3.2 CVZ / MVZ SMP-090 558722.4 2924649.7 604.8 160 -51.5 11.9 CVZ / MVZ SMP-091 558727.2 2924613.8 606.4 50 -54.3 176.8 Adit Vein West SMP-092 558996.3 2924901.8 563.1 95 -42.6 311.1 MVZ-EX / NE Shear Notes: All co-ordinates are UTM (WGS84) Zone 36R Collars have all been surveyed using an E-survey E800 GNSS system using RTK survey methodology All drill holes were downhole surveyed using a gyroscopic survey tool Appendix B - Semna phase 3a RC drill hole screen fire assay intersections (1m splits) Hole ID Intersection (m) Au (g/t) Ag (g/t) Cu (%) Comments From To Interval SMP-074 34 36 2 1.49 0.2 0.00 Offset Vein SMP-075 14 17 3 1.83 0.6 0.00 MVZ-EX SMP-076 75 78 3 2.32 0.8 0.00 MVZ-EX / NE Shear SMP-077 20 22 2 1.27 0.3 0.00 MVZ-EX / NE Shear SMP-078 85 88 3 6.22 1.3 0.09 MVZ-EX / NE Shear and 112 117 5 1.09 0.5 0.01 and 137 140 3 9.58 17.2 0.85 SMP-079 107 110 3 3.09 1.3 0.05 MVZ SMP-081 124 127 3 2.72 0.6 0.00 CVZ and 170 172 2 3.33 0.9 0.00 MVZ SMP-082 68 70 2 1.20 0.4 0.00 MVZ-EX / NE Shear and 128 133 5 10.62 3.8 0.09 SMP-083 94 100 6 1.30 0.5 0.01 MVZ-EX / NE Shear and 188 194 6 5.36 1.3 0.03 SMP-085 157 182 25 3.65 1.6 0.04 MVZ-EX / Offset Vein incl. 157 160 3 11.92 6.5 0.20 and incl. 173 182 9 6.11 2.1 0.03 SMP-086 176 197 21 1.33 0.3 0.00 MVZ-EX / Offset Vein SMP-087 98 99 1 8.78 20.9 0.96 and 203 205 2 4.64 2.3 0.01 MVZ-EX / Offset Vein SMP-088 111 128 17 4.20 1.1 0.03 Possible flat veins? incl. 111 113 2 3.28 0.8 0.02 and incl. 124 128 4 15.84 3.4 0.09 and 178 181 3 2.06 1.5 0.02 MVZ-EX / Offset Vein SMP-089 31 33 2 9.27 1.2 0.01 CVZ SMP-090 44 46 2 4.06 0.5 0.01 CVZ and 126 132 6 7.33 6.7 0.25 MVZ SMP-091 19 31 12 3.83 0.8 0.02 Adit Vein West SMP-092 6 7 1 1.66 0.1 0.01 MVZ-EX / NE Shear and 56 62 6 2.02 0.7 0.01 Notes: Mineralised intervals were calculated using a nominal cut-off of 0.5 g/t Au Appendix C - Semna phase 3a RC drill hole conventional fire assay intersections (1m splits) Hole ID Intersection (m) Au (g/t) Ag (g/t) Cu (%) Comments From To Interval SMP-074 34 36 2 1.60 0.2 0.00 Offset Vein SMP-075 14 17 3 3.53 0.6 0.00 MVZ-EX SMP-076 75 78 3 2.10 0.8 0.00 MVZ-EX / NE Shear SMP-077 20 22 2 1.10 0.3 0.00 MVZ-EX / NE Shear SMP-078 85 88 3 2.87 1.3 0.09 MVZ-EX / NE Shear and 112 117 5 0.94 0.5 0.01 and 137 139 2 16.63 25.5 1.26 SMP-079 107 110 3 2.71 1.3 0.05 MVZ SMP-081 124 127 3 2.06 0.6 0.00 CVZ and 170 172 2 3.88 0.9 0.00 MVZ SMP-082 68 70 2 1.03 0.4 0.00 MVZ-EX / NE Shear and 128 133 5 10.47 3.8 0.09 SMP-083 94 100 6 1.17 0.5 0.01 MVZ-EX / NE Shear and 188 194 6 4.71 1.3 0.03 SMP-085 156 182 26 3.39 1.5 0.04 MVZ-EX / Offset Vein incl. 156 160 4 8.07 4.9 0.15 and incl. 173 182 9 6.15 2.1 0.03 SMP-086 176 197 21 1.27 0.3 0.00 MVZ-EX / Offset Vein SMP-087 98 99 1 9.58 20.9 0.96 and 203 205 2 4.39 2.3 0.01 MVZ-EX / Offset Vein SMP-088 111 128 17 4.78 1.1 0.03 Possible flat veins? incl. 111 113 2 5.07 0.8 0.02 and incl. 124 128 4 17.40 3.4 0.09 and 178 182 4 2.11 1.2 0.02 MVZ-EX / Offset Vein SMP-089 31 33 2 11.46 1.2 0.01 CVZ SMP-090 44 46 2 5.09 0.5 0.01 CVZ and 126 132 6 7.01 6.7 0.25 MVZ SMP-091 19 31 12 3.43 0.8 0.02 Adit Vein West SMP-092 6 7 1 1.66 0.1 0.01 MVZ-EX / NE Shear and 56 62 6 2.06 0.7 0.01 Notes: Mineralised intervals were calculated using a nominal cut-off of 0.5 g/t Au Appendix D - Semna phase 3a RC drill hole conventional fire assay intersections (4m composites) Hole ID Intersection (m) Au (g/t) Comments From To Interval SMP-074 32 36 4 0.72 Offset Vein SMP-075 12 16 4 2.42 MVZ-EX SMP-076 72 80 8 0.79 MVZ-EX / NE Shear SMP-077 20 24 4 0.58 MVZ-EX / NE Shear SMP-078 84 88 4 2.87 MVZ-EX / NE Shear and 112 120 8 0.85 and 136 140 4 6.55 SMP-079 108 112 4 1.45 MVZ SMP-081 124 128 4 2.09 CVZ and 168 172 4 2.01 MVZ SMP-082 68 72 4 0.49 MVZ-EX / NE Shear and 124 136 12 5.20 SMP-083 92 100 8 1.29 MVZ-EX / NE Shear and 188 196 8 3.36 SMP-085 156 184 28 3.35 MVZ-EX / Offset Vein incl. 156 160 4 9.89 and incl. 172 184 12 4.47 SMP-086 176 196 20 1.53 MVZ-EX / Offset Vein SMP-087 96 100 4 2.01 and 200 208 8 0.91 MVZ-EX / Offset Vein SMP-088 108 128 20 4.10 Possible flat veins? incl. 108 112 4 2.01 and incl. 124 128 4 18.00 and 180 184 4 1.37 MVZ-EX / Offset Vein SMP-089 28 36 8 3.09 CVZ SMP-090 44 48 4 2.48 CVZ and 124 132 8 5.84 MVZ SMP-091 16 32 16 1.87 Adit Vein West SMP-092 4 8 4 0.77 MVZ-EX / NE Shear and 56 60 4 1.86 Notes: Mineralised intervals were calculated using a nominal cut-off of 0.5 g/t Au SOURCE: Aton Resources, Inc. View the original press release on ACCESS Newswire”

Evidence · text

“The technical information contained in this News Release was prepared by Javier Orduña BSc (hons), MSc, MCSM, DIC, MAIG, SEG(M), Chief Geologist of Aton Resources Inc. Mr. Orduña is a qualified person (QP) under National Instrument 43-101 Standards of Disclosure for Mineral Projects.”

Evidence · table

“Mineralised intervals were calculated using a nominal cut-off of 0.5 g/t Au”

Evidence · text

“The latest drilling results, expanding the mineralisation at depth, along strike, and to new structures away from the Main Vein zone, continue to indicate the potential for a significant orogenic gold system at Semna”

Evidence · text

“The phase 3a and 3b RC drill programmes have been undertaken on a reasonably tight spacing as the Company looks to accelerate the estimation of a maiden resource at Semna in 2026”

Evidence · table

“15.84”

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