Mr. Peter Cashin reports

AURIGINAL COMMENCES 5,200 METRE DRILL PROGRAM ON ITS ROGER PROJECT

Diamond drilling has commenced on Auriginal Mining Corp.'s Roger property to test for extensions of the historical intrusive-hosted copper-gold (Cu-Au) mineralization and to confirm the new VMS (volcanogenic massive sulphide) mineralizing model applied to the property.

Highlights:

• Auriginal aims to make a new discovery with this 5,200 m drill program, testing for volcanogenic massive sulphide (VMS) mineralization above and to the south of the existing Rogers copper-gold resource.
• Drilling will also probe the depth continuation of the historical porphyry-hosted Cu-Au deposit at the 500-metre vertical level.
• Borehole EM surveying to locate the centre of gravity of the VMS mineralized system will be completed on new holes.

Drill program rationale

The Roger deposit has long been viewed as a porphyry-style Au-Cu system. Auriginal's reinterpretation, based on relogging, resampling, geochemistry and age dating, suggests that the historical gold-copper deposit may sit below an overlying gold-rich volcanic massive sulphide (VMS) system.

A continuous, sulphide-bearing marker horizon has been traced for at least 1.5 kilometres, hosted in altered felsic to intermediate volcanic rocks typical of VMS environments. Geochemical and geological signatures show strong similarities to Agnico Eagle's LaRonde 20N massive sulphide deposit, reinforcing the potential for a second, high-grade base-metal deposit at depth.

Roger project drill program

Auriginal is planning a diamond drill program to intersect the gold-rich massive sulphide horizon, targeting downhole geophysical anomalies with the explicit objective of making a new VMS discovery south of the historical intrusive-hosted copper-gold system on the property. All required work, including securing necessary work permits and drill site preparation has been completed.

The drilling program includes:

• Minimum 5,200 m of diamond drilling of the Roger mineralized system;
• Testing conductive plates at the 500 m vertical level across 1.5 km of strike;
• Completing downhole EM (electromagnetic) surveys in all new hole to tighten vectoring toward a VMS system.

This is the first focused drill campaign designed specifically to test this new VMS interpretation and the high-priority targets defined by borehole electromagnetic surveys (BHEM). Drilling will also test the deep continuation of the historical porphyry-style or intrusion-related Au-Cu deposit on the property, which is still open at depth.

3-D resource model indicated strong potential for expansion

A preliminary 3-D model has been developed using the digital exploration database for the Roger project and rendered using Leapfrog. The intent of this exercise was to provide preliminary validation of the historical drill hole data for the property and to identify additional targets of opportunity that enhance the value proposition of the Roger.

The longitudinal section created from the data shows a significant thickening of the Roger mineralization believed to be the axis of an interpreted volcanic dome or cryptodome, the required heat source for a VMS mineralizing system. The most important basemetal sulphide intersections returned from historical drilling (see Kintavar press release dated Nov. 12, 2025) occur along the northeast and southwest flanks of the interpreted dome structure axis, in support of the VMS model develop for the property.

There is strong indication that the Roger porphyry mineralization remains open toward the northeast and at depth. A strong borehole EM (BHEM) was detected from the company's earlier survey work (see press release dated Nov. 12, 2025), believe to be related to massive basemetal sulphide mineralization has also been observed in that direction.

About Auriginal Mining Corp.

Auriginal is a Quebec-focused copper and gold company with one of the province's largest and most diversified exploration portfolios. Its 100-per-cent-owned flagship Roger project, located in the Chibougamau district, hosts a known gold-copper deposit with strong potential to host volcanic-hosted polymetallic massive sulphide deposits. With a diversified pipeline of greenfield projects across Quebec's best-known mining regions and backed by the Ore Group's proven exploration and capital markets team Auriginal has a clear focus on discovery and growth for copper, zinc and gold. The company is well positioned to immediately execute an aggressive exploration and acquisition strategy and attract broader market attention.

Qualified person statement

The technical information contained in this news release has been reviewed and approved by Andre Liboiron, PGeo (No. 617), a qualified person as defined in National Instrument 43-101.

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