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 MetresVANCOUVER, BC / ACCESS Newswire / December 23, 2025 / Aton Resources Inc. (TSXV:AAN) ("Aton" or the "Company") updates investors on the final results from its phase 3a reverse circulation percussion ("RC") drilling programme at the Semna gold mine project, located within the retained exploration areas of the Company's Abu Marawat Concession ("Abu Marawat" or the "Concession") in the Eastern Desert of Egypt.Highlights:44 RC drill holes (SMP-049 to SMP-092) were completed in the phase 3a programme at Semna, for a total of 5,257 metres drilled. Full assay results, including conventional fire assay and metallic screen fire assay results, are now available for the final 19 holes of the programme (SMP-074 to SMP-092);Significant high grade mineralised intersections (based on metallic screen fire assay analyses) include the following:3.65g/t Au over a 25m interval, from 157m downhole depth, from hole SMP-085, including intervals of 11.92 g/t Au over 3m and 6.11 g/t Au over 9m;4.20 g/t Au over a 17m interval, from 111m downhole depth, including an interval of 15.84 g/t Au over 4m (hole SMP-088);10.62 g/t Au over a 5m interval, from 128m downhole depth (hole SMP-082);7.33 g/t Au over a 6m interval, from 126m downhole depth (hole SMP-090);9.58 g/t Au over a 3m interval, from 137m downhole depth (hole SMP-078); and3.83 g/t Au over a 12m interval, from 19m downhole depth (hole SMP-091).Wide zones of quartz vein associated mineralisation were intersected in deep RC holes SMP-085, SMP-086 and SMP-088, showing the mineralisation continues at depth beneath the Main Vein and Offset Vein zones, as well as strong down-dip persistence of these mineralised structures;High grade mineralisation was also intersected approximately 270m east-northeast and along strike of the old Main Vein underground workings (holes SMP-078 and SMP-082). Furthermore, near-surface mineralisation was also drilled on the Adit Vein West structure, approximately 130m south of the underground workings (hole SMP-091), as well as previously untested mineralisation on the Central Vein zone (holes SMP-089 and SMP-090);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, with multiple high grade mineralised structures and orientations."2025 has been another busy year in Egypt for Aton, and we are pleased to close it out with another very promising set of drill results from our emerging Semna project" said Tonno Vahk, CEO. "We are particularly encouraged by the persistence of multiple and wide quartz vein structures at depth, as we chase them down-dip, as well as the presence of wide zones of gold mineralisation at very respectable grades. We are also increasing the strike length of the high grade mineralisation on the Main Vein, and continue to intersect near-surface and outcropping mineralisation on new structures that have not yet been drill tested. As we continue to expand the surface footprint of the high grade mineralisation, as well as drilling wide zones of mineralisation at depth, Semna is certainly shaping up as a potentially very significant high grade gold deposit. We continue to move ahead on other projects, and expect to be able to release encouraging new drill and metallurgical testwork results from the Abu Marawat deposit early in 2026, also in our retained exploration areas. At Hamama work on the PFS is continuing, and we are looking to rapidly accelerate the development of the Hamama West mine, and are planning to commence gold production there in 2027. This year has certainly been a busy one for Aton, and we are looking forward to an even more exciting and productive year in 2026 as we push ahead to becoming only the second international gold miner in Egypt. Finally, I would like to wish all our shareholders and stakeholders a happy holiday season, and a successful and prosperous New Year!"Semna gold mine projectThe Semna prospect is located approximately 27km east-northeast of the Hamama West deposit and 13km north-northeast of the Rodruin deposit, and is accessed via desert tracks from either Hamama, Rodruin or the Abu Marawat deposit to the north (Figure 1). The Semna area has a long history of gold mining, dating back thousands of years to the Old Kingdom, and it was more recently exploited between 1904 and 1906 by two British companies, which worked the Main Vein on two underground levels. It is anecdotally suggested that the Semna mine had the widest vein exploited during the early 20 th Century phase of gold mining in Egypt, reaching up to 6m width in places, with the British companies reporting mining grades of over 2 ounces per ton. Reports from the British Mining Journal from 1905 indicated that some remnant pillars within the anci