ATEX Resources Expands B2B Zone with Enhanced Drill Results

• Drill hole ATXD26B returned 186 metres at 2.13% copper equivalent (CuEq), including 88 metres at 2.70% CuEq, improving upon the previously reported 146-metre interval at 2.00% CuEq.
• Results confirm a 100-metre down-dip extension of the B2B Zone, with approximately 400 metres of assay results still pending from ATXD26B.
• The B2B Zone now measures approximately 400 metres of strike, up to 200 metres in horizontal width, and 500 to 600 metres in vertical extent.
• Phase VI drilling has completed over 12,500 metres of the targeted 25,000 metres, with six drill rigs operational on site.
• New breccia targets including B3B, B4B, and B5B are being tested across the property, with assay results pending.

ATEX Resources Inc. (TSXV: ATX) is a Toronto-based mineral exploration company focused on acquiring and developing high-grade copper-gold projects in the Americas. The company is exploring the Valeriano Copper-Gold Project in Chile's Atacama Region, located in a mineral belt connecting the El Indio High-Sulphidation Belt and the Maricunga Gold Porphyry Belt. In September 2025, the company reported a mineral resource of 475 million tonnes indicated at 0.88% CuEq and 1,511 million tonnes inferred at 0.75% CuEq.

Extended Intercept From Drill Hole ATXD26B

Additional assay results from drill hole ATXD26B increased the mineralised interval to 186 metres at 2.13% CuEq (1.32% copper, 0.72 grams per tonne gold), including 88 metres at 2.70% CuEq (1.61% copper, 0.99 grams per tonne gold). The broader interval extends to 448 metres at 1.50% CuEq. These results represent a 40-metre increase in width and 7% grade improvement compared to the 146-metre interval at 2.00% CuEq reported in December 2025.

Mineralisation in ATXD26B consists of chalcopyrite and bornite with associated brecciation from approximately 1,050 metres to 1,400 metres downhole.

President and CEO Ben Pullinger stated,

"The continuation of drill results from ATXD26B has improved both the thickness and grades of the B2B breccia, reinforcing the continuity and growth potential of this high-grade zone."

Approximately 400 metres of assay results from ATXD26B remain outstanding, extending from the current mineralised interval to the end of the hole. The company noted that drilling encountered mineralised early porphyry below the breccia zone.

Down-dip Extension Confirmed

The results confirm a 100-metre extension of the B2B Zone down-dip from previously defined limits. The zone now has dimensions of approximately 400 metres strike length, up to 200 metres horizontal width, and 500 to 600 metres vertical extent.

CEO Pullinger commented,

"The robustness of this high-grade system continues to be shown through repeated intersections of consistent, high-grade mineralisation, underscoring its potential to support further resource growth. We now see a zone with approximate dimensions of 400 meters of strike, up to 200 meters in horizontal width and a vertical extent of 500 to 600 meters."

Multiple drill holes, including ATXD23A, ATXD29A, and ATXD26B, have intersected similar mineralisation within the B2B Zone.

Phase VI Drlling Programme Update

The Phase VI programme has completed over half of the targeted 25,000 metres with six diamond drill rigs operational. The programme is testing the B2B Zone extension and evaluating new breccia targets across the property.

Current drilling includes:

• B2B Zone: ATXD31, ATXD32, ATXD25D, and ATXD26C are testing various extensions of the zone
• B3B target: ATXD34A and ATXD35 are testing mineralisation 130 to 190 metres east of B2B
• B4B target: ATXD30 is testing a magnetic anomaly 600 metres northeast of B2B
• B5B target: ATXD36 is evaluating a geophysical anomaly northeast of ATXD30
• Additional target: ATXD33 is testing an anomaly one kilometre southeast of the mineralised centre

Assay results from these drill holes are pending.

CEO Pullinger stated,

"We see potential to further add high-grade tonnes in the porphyry and other breccia targets at Valeriano. Our focus in 2026 is to aggressively advance these targets."

Next Steps

The company expects to receive approximately 400 metres of pending assay results from ATXD26B in the coming weeks. Additional results from the Phase VI programme will be reported as they are received from the laboratory. The programme continues to advance with six rigs operational, targeting completion of 25,000 metres of drilling.

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