ATEX Reports B2B Zone Drilling Results with 600 Metres of Assays Pending

• Drill hole ATXD26B intersected 146 metres of 2.00% copper equivalent (1.30% copper, 0.67 g/t gold), including 54 metres at 2.50% copper equivalent (1.58% copper, 0.88 g/t gold)
• Over 600 metres of assay results from ATXD26B are pending, with full results anticipated in January 2026
• Logged breccia mineralisation in ATXD26B is anticipated to extend the B2B Zone by 100 metres down dip
• Phase VI programme has completed 12,550 metres of the planned 25,000-metre target with six rigs operational
• Drill hole ATXD25C final assays show 164 metres at 2.77% copper equivalent, including 86 metres at 3.84% copper equivalent and 40 metres at 4.83% copper equivalent

ATEX Resources Inc. (TSXV: ATX) is a Canadian mineral exploration company developing the Valeriano Copper-Gold Project in Chile's Atacama Region. The project is located in a mineral belt linking the El Indio High-Sulphidation Belt to the south with the Maricunga Gold Porphyry Belt to the north. Valeriano hosts a mineral resource with an indicated resource of 475 million tonnes at 0.88% copper equivalent and an inferred resource of 1,511 million tonnes at 0.75% copper equivalent, as reported in September 2025.

High-Grade B2B Zone Drilling Results

Drill hole ATXD26B intersected 224 metres of 1.52% copper equivalent starting at 1,014 metres downhole. Within this interval, the hole intersected 146 metres of 2.00% copper equivalent (1.30% copper, 0.67 g/t gold) and 54 metres of 2.50% copper equivalent (1.58% copper, 0.88 g/t gold). Chalcopyrite and bornite mineralisation with associated brecciation was intersected from approximately 1,050 metres to 1,400 metres downhole, before entering mineralised early porphyry associated with the high-grade trend until the end of the hole.

The logged breccia mineralisation intersected in ATXD26B is anticipated to extend the current limits of the B2B Zone by 100 metres down dip. Over 600 metres of assay results for ATXD26B are outstanding, with full results anticipated in January. Four metres of drill core was not recovered between 1,140 metres and 1,144 metres in a fault zone.

Finalised assays from drill hole ATXD25C resulted in an intercept of 164 metres at 2.77% copper equivalent (1.69% copper, 0.97 g/t gold, 5.5 g/t silver, 43 g/t molybdenum), including 86 metres at 3.84% copper equivalent (2.28% copper, 1.41 g/t gold, 7.9 g/t silver, 48 g/t molybdenum) and 40 metres at 4.83% copper equivalent (2.76% copper, 1.88 g/t gold, 10 g/t silver, 43 g/t molybdenum), starting at 1,558 metres downhole. These intervals are contained within a broader intercept of 584 metres at 1.27% copper equivalent from 1,302 metres downhole. The horizontal width of the mineralised intersection is approximately 170 metres.

Phase VI Programme Progress

The Phase VI drill programme has six diamond drill rigs active on site and has completed 12,550 metres of the targeted 25,000 metres. The programme commenced in September and is prioritising the B2B Zone and similar high-grade breccia targets. Over 6,500 metres of samples are currently at the laboratory.

"Initial results for drill hole ATXD26B have delivered another high-grade intercept in the B2B Zone and further demonstrates potential to enlarge this high-grade target,"

stated Ben Pullinger, President and CEO of ATEX.

"Results from initial Phase VI drilling at the B2B Zone are improving our understanding of the high-grade system and confirming potential for growth beyond the 2025 Mineral Resource Estimate."

At the B2B Zone, drill hole ATXD31A is evaluating northwest lateral continuity at the lower elevation, ATXD32 is testing the zone approximately 65 metres north of ATXD23A, and ATXD25D is testing the northwest strike extension in the upper part of the breccia system. Additional drill holes are testing new high-grade breccia targets: ATXD34A and ATXD35 are testing B3B approximately 130 metres east of B2B, ATXD30 is testing B4B approximately 600 metres to the northeast, ATXD36 is evaluating B5B northeast of ATXD30, and ATXD33 is targeting an untested geophysical anomaly approximately one kilometre from the mineralised centre.

Laboratory Processing and Quality Control

Assay laboratory turnaround times are currently longer than anticipated due to elevated seasonal demand across the industry. Results are being released as they are received from the laboratory. Over 6,500 metres of samples are currently at the laboratory, with assay results pending from multiple drill holes.

Samples are prepared at ALS facilities in Copiapo and sent to ALS assay laboratories in Santiago or Lima for analysis. ALS is an accredited laboratory independent of the company. Assays include gold, copper, molybdenum, and silver, as well as multi-element analysis. The company employs quality control protocols including reference standards and duplicate samples.

Drill core is processed at the Valeriano field camp before being transferred to a secure core-cutting facility in Vallenar operated by IMG. Core is cut using a diamond saw, with samples placed in sealed bags and assigned reference numbers. The remaining half-core is stored at the company's secure facility in Vallenar.

Programme Status and Timeline

Full results from drill hole ATXD26B are anticipated in January 2026. Assay results from drill holes ATXD32, ATXD30, and ATXD33 are pending. Drill holes ATXD31A, ATXD25D, ATXD34A, ATXD35, and ATXD36 are in progress. The Phase VI programme is continuing with six rigs operational on site, targeting completion of 25,000 metres of exploration drilling focused on the B2B Zone and new breccia targets.

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