ATEX Reports Northern Extension of B2B Zone at Valeriano Copper-Gold Project

• ATXD32 returned 56 metres at 2.36% copper equivalent within 592 metres at 1.04% copper equivalent, extending the B2B Zone 100 metres north along strike
• Complete ATXD26B results show 887 metres at 1.06% copper equivalent from 763 metres depth, including 186 metres at 2.15% copper equivalent
• Phase VI programme has completed 19,800 metres of a planned 25,000 metres across six active drill rigs
• Drilling continues to test extensions of the B2B Zone to the north and south, with 12 drill holes awaiting assay results
• Follow-up drilling targeting a 350-metre by 200-metre area south of ATXD26B where hole ATXD28 previously intersected 90 metres at 0.95% copper equivalent

ATEX Resources Inc. (TSXV: ATX) (OTCQB: ATXRF) is a Canadian-based exploration company advancing the Valeriano Copper-Gold Project in Chile's Atacama Region. The project is situated within a mineral belt connecting the El Indio High-Sulphidation Belt and the Maricunga Gold Porphyry Belt, an area hosting several copper-gold porphyry deposits including Filo del Sol, Josemaria, and La Fortuna. Valeriano's mineral resource, reported in September 2025, comprises 475 million tonnes at 0.88% copper equivalent in the indicated category and 1.5 billion tonnes at 0.75% copper equivalent in the inferred category, both at a 0.35% copper cut-off grade.

High-Grade Drill Results from ATXD32 Extending B2B Zone 100 Metres North

Drill hole ATXD32, the third hole completed in the Phase VI programme, intersected 56 metres averaging 2.36% copper equivalent (1.49% copper, 0.78 grams per tonne gold, 4.9 grams per tonne silver, 20.6 grams per tonne molybdenum) within a broader 592-metre interval at 1.04% copper equivalent. The mineralised interval begins at 760 metres depth and extends the high-grade core of the B2B Zone approximately 100 metres north along strike. The B2B Zone remains open in this direction, with drilling in progress to test further extensions.

The drill hole encountered chalcopyrite and bornite mineralisation with associated brecciation, consistent with characteristics observed elsewhere in the B2B Zone. Below the main B2B intersection, ATXD32 continued into porphyry mineralisation, returning 144 metres at 1.06% copper equivalent (0.46% copper, 0.55 grams per tonne gold) before the hole was terminated in early porphyry material. An additional 124-metre interval at 0.66% copper equivalent was intersected lower in the hole between 2,010 and 2,134 metres depth.

The total mineralised interval for ATXD32, including both B2B and porphyry mineralisation, measures 1,080 metres at 0.89% copper equivalent starting from 760 metres downhole depth. Copper equivalent calculations use metal prices of $3.80 per pound copper, $2,750 per ounce gold, $27 per ounce silver, and $22 per pound molybdenum, with recoveries based on the 2025 mineral resource estimate.

Complete ATXD26B Results with Record 887-Metre Interval

Final assay results from drill hole ATXD26B show an 887-metre interval from 763 metres depth averaging 1.06% copper equivalent (0.65% copper, 0.35 grams per tonne gold, 2.1 grams per tonne silver, 87.6 grams per tonne molybdenum). This represents the longest mineralised interval reported to date at the Valeriano Project. Within this zone, ATXD26B intersected 186 metres at 2.15% copper equivalent (1.33% copper, 0.72 grams per tonne gold, 4.0 grams per tonne silver, 80.8 grams per tonne molybdenum) between 1,076 and 1,262 metres depth.

The hole extended the B2B Zone 100 metres down dip, with grades higher than those used in the September 2025 mineral resource estimate. Chalcopyrite and bornite mineralisation with associated brecciation was intersected from approximately 1,050 metres to 1,400 metres downhole. Below the B2B Zone, the hole continued into early porphyry mineralisation, intersecting 182 metres at 0.75% copper equivalent (0.40% copper, 0.32 grams per tonne gold) between 1,468 and 1,650 metres depth.

Drilling is now targeting an area south of ATXD26B that measures approximately 350 metres along strike by over 200 metres in width. Previous drilling in this area was limited, though hole ATXD28 from the Phase V programme intersected 90 metres at 0.95% copper equivalent (0.71% copper, 0.30 grams per tonne gold) at elevations comparable to the high-grade B2B Zone core.

Phase VI Drill Programme Progress at 80% Completion

The Phase VI drilling programme has completed 19,800 metres, representing 80% of the planned 25,000-metre target. Six diamond drill rigs remain active on site. Of the drilling completed to date, approximately 9,000 metres focused on the B2B Zone, with a further 10,800 metres dedicated to nearby high-grade breccia targets. The programme is progressing ahead of its original schedule, though laboratory turnaround times have increased due to elevated seasonal demand across the mining industry.

Interim CEO Chris Beer stated:

"Results from hole ATXD32 represent another standout intercept in the B2B Zone extending the high-grade core by approximately 100 meters to the north and further validating the Valeriano Porphyry high-grade trend. Together, ATXD32 and ATXD26B continue to meaningfully expand the B2B Zone, with additional drilling underway to test further extensions to the north and south."

Twelve drill holes currently have assay results pending at the laboratory. Active drilling continues at multiple locations including southern and northern extensions of the B2B Zone, depth extension tests in the central zone, and new breccia targets designated B3B, B4B, and B5B located at distances ranging from 130 metres to one kilometre from the B2B Zone. Additional drilling is testing the southern extension of the Valeriano porphyry high-grade trend.

Next Steps

ATEX will continue the Phase VI programme with six active drill rigs until completion of the remaining 5,200 metres. Results from the 12 drill holes awaiting laboratory processing will be released as they become available. The company is testing extensions of the B2B Zone to the north and south, evaluating depth extension potential in the central zone, and assessing multiple new breccia targets across the project area.

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