ATEX Resources Reports Eastward Extension of B2B Zone and Expanded Drilling Scope at Valeriano

• Drill hole ATXD34 returned 172 metres grading 0.80% CuEq within a broader 834-metre interval of 0.66% CuEq, located approximately 135 metres east of the B2B Zone.
• Mineralisation and alteration patterns observed in ATXD34 may indicate the presence of a separate porphyry centre proximal to the Valeriano system, with a recently completed geophysical survey showing the anomaly extends further east.
• Step-out holes ATXD30 and ATXD33, drilled to the north and southeast respectively, confirmed porphyry-related mineralisation beyond the current resource boundaries, extending the known corridor to approximately 1.8 kilometres from north to south.
• The Phase VI programme has completed approximately 24,000 metres, representing over 95% of the original 25,000-metre plan, and is now expected to exceed 30,000 metres before the season ends.
• Several completed holes, including two testing new magnetic anomalies northeast of the B2B Zone, are awaiting assay results from the laboratory.

ATEX Resources Inc. (TSXV: ATX; OTCQB: ATXRF) is a copper-gold exploration company advancing the Valeriano project in the Atacama Region of Chile. The project is located within an emerging copper-gold porphyry belt, informally referred to as the Link Belt, which connects the El Indio High-Sulphidation Belt to the south with the Maricunga Gold Porphyry Belt to the north. The belt hosts several copper-gold deposits at various stages of development, including projects associated with Lundin Mining, BHP, Teck Resources, Newmont, Antofagasta, and Barrick. As of September 2025, Valeriano holds an Indicated Resource of 475 million tonnes at 0.88% CuEq and an Inferred Resource of approximately 1.5 billion tonnes at 0.75% CuEq.

Significant Eastward Expansion of the B2B Zone

The B2B Zone is the high-grade breccia horizon within the broader Valeriano copper-gold system. A breccia horizon is a body of broken, mineralised rock formed through the movement of metal-bearing fluids, depositing copper, gold, silver, and molybdenum in the process. The zone was previously estimated at approximately 200 metres in thickness.

Drill hole ATXD34, the first hole designed to test targets east of the B2B Zone, returned a continuous 834-metre interval grading 0.66% CuEq from 778 to 1,612 metres downhole, including a higher-grade section of 172 metres at 0.80% CuEq. The intercept falls within the same elevation window as the known high-grade breccia horizon and extends the B2B Zone's lateral footprint by at least 135 metres to the east.

Near the base of the intercept, drilling encountered chalcopyrite and bornite mineralisation with brecciation and alteration characteristic of the B2B Zone. Ongoing interpretation will determine whether this represents the eastern edge of the existing B2B Zone or a new porphyry zone, as indicated by recent geophysical studies. 

Interim CEO Chris Beer commented: 

"Today's drill results represent another important step forward in our understanding of the structural controls and orientation of the higher-grade breccia within a broader mineralized system that has now been significantly expanded to the east. This horizon lies above the high-grade Valeriano porphyry trend and remains open for further expansion into untested areas."

The Valeriano System Is Growing: 1.8 km North-South Corridor Confirmed

Two additional holes released alongside ATXD34 tested targets to the north and southeast of the existing mineralised footprint. ATXD33 was a 525-metre step-out to the southeast, designed to test a magnetic anomaly approximately 325 metres southeast of the Valeriano Porphyry. ATXD30 was drilled approximately 625 metres north of the B2B Zone to test a northern magnetic anomaly. Together with ATXD34, the three holes define a mineralised corridor spanning approximately 1.8 kilometres from north to south.

ATXD33 returned two intervals: 198 metres of 0.14% CuEq and 134 metres of 0.13% CuEq. The hole intersected rock-milled breccia and coarse-grained porphyry with potassic alteration at depth, both of which are geological features associated with copper-gold porphyry systems. The results confirm that mineralisation at Valeriano continues beyond the currently defined southeastern boundary.

ATXD30 intersected alteration, veining, and anomalous mineralisation, confirming that the system remains open to the north. 

Interim CEO Chris Beer stated: 

"ATXD30 and ATXD33 also intersected porphyry-style mineralization and alteration extending north and southeast of the current mineralized footprint, highlighting a mineralized corridor that now spans 1.8 km from north to south."

Phase VI Drill Programme Tracking Ahead of Schedule with More Results Pending

The Phase VI programme was launched in October 2025 with a planned scope of 25,000 metres across six diamond drill rigs. Approximately 24,000 metres have been completed, representing over 95% of the original target. The programme is now expected to exceed 30,000 metres before the end of the season.

To date, 13 holes and four mother holes have been completed, with six holes currently in progress. Approximately 11,750 metres have been drilled within the B2B Zone, with a further 10,600 metres on nearby high-grade breccia targets and 1,600 metres on porphyry targets. Assay results are pending for several completed holes, including ATXD25D, ATXD26C, ATXD31A, ATXD31B, ATXD35, and ATXD36.

ATXD35 and ATXD36 are testing new magnetic anomalies approximately 250 metres and 850 metres northeast of the B2B Zone respectively and represent targets that have not previously been drilled. Additional holes currently in progress include ATXD37, targeting a seismic anomaly approximately 480 metres north of the B2B Zone, and ATXD39A, targeting the southern extension of the porphyry high-grade trend. Results will be reported as they are received from the laboratory.

Outlook and Next Steps

With Phase VI surpassing its original drilling scope and mineralisation confirmed across a 1.8-kilometre north-south corridor, the Valeriano system has been extended on multiple fronts in this campaign. Near-term milestones include pending assay results from holes testing the northern, northeastern, and southeastern extensions of the B2B Zone, as well as the completion of geological interpretation for ATXD34 to determine whether the eastern intercept represents a continuation of the existing zone or a separate porphyry centre. Results will be released as laboratory data is received.

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