Mr. Peter Cashin reports

AURIGINAL CONFIRMS TWO-MINERALIZATION STYLE POTENTIAL AT ROGER: DRILLING HITS PREDICTED VMS SULPHIDES AND EXPANDS THE PORPHYRY CU-AU SYSTEM

Auriginal Mining Corp. has released results from its drill program at the 100-per-cent-owned Roger project have expanding the known porphyry copper-gold system, and, as the company predicted, they confirm a second, distinct style of mineralization on the property.

Highlights:

• VMS-style (volcanogenic massive sulphide) sulphides were intersected directly above the Roger porphyry, where the company's model predicted, pointing to a second style of mineralization at Roger (assays pending).
• Porphyry system expanded: Two holes 600 metres northeast of the historical deposit cut 59-metre- and 100-metre-core-length sections of porphyry-style sulphide mineralization, confirming the fault-offset block the company had modelled and tracing the system over a new strike length of at least 400 metres at the 350-metre vertical level.
• Downhole geophysical crews have mobilized to the property to probe all new drilling for additional VMS targets.
• Drilling is continuing, with three of eight holes to be reported.

Two holes drilled 600 m northeast of the historical Roger deposit intersected the fault-offset continuation of the porphyry system, tracing it over a new strike length of at least 400 m at the 350-metre vertical level. A further three holes on the southwest extension intersected not only porphyry-style mineralization but also massive sulphides overlying the porphyry VMS style the company's exploration model had predicted. Downhole EM (electromagnetic) and gravity crews have mobilized to survey all new holes and help target additional massive sulphide bodies above and to the south of the Roger porphyry.

"Our first two holes of the program appear to have confirmed our geological model for the NE portion of the historical Roger porphyry copper-gold zone," said Peter Cashin, Auriginal's chief executive officer. "A strongly silica-altered felsic volcanic section hosting 3 to 7 per cent sulphides over intersection lengths of 59 m and 100 m was intersected in drilling, which returned numerous gold-bearing intersections. In addition, massive VMS-style mineralization was observed overlying the Roger porphyry zone in the SW drill area in support of our exploration model. Although very encouraged, we remain measured until we have full assays in hand but certainly changes the way Roger will be explored."

Best assay results from the first two holes of the program returned the following.

Drill program rationale and results

The Roger deposit has long been viewed as a porphyry-style gold-copper 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 VMS system.

A continuous, sulphide-bearing marker horizon had previously been defined 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 above and to the south of the Roger copper-gold zone.

Digital modelling of the Roger zone shows the historical resource to be open at depth and along strike and provides Auriginal with an additional target of opportunity.

Holes AUR-26-01 and AUR-26-02

Diamond drilling 600 m northeast of the defined limits of the Roger porphyry copper-gold zone were planned to test the downdropped continuation of the mineralized system. Drilling encountered between 50 and 150 m of highly altered and sulphide mineralized felsic rocks at the 400-metre vertical level, characteristic of the Roger zone. Results from both holes returned highly anomalous gold mineralization over the anomalous intervals.

Holes AUR-26-03, AUR-26-04 and AUR-26-05

These holes were planned to test the depth continuation of the Roger copper-gold porphyry mineralization at the 500-metre vertical level and to test a strong off-hole conductor identified by the company's surveying of historical holes in late 2025. All three holes intersected Roger-style sulphide mineralization and alteration over wide intervals. In addition, massive sulphides were intersected above the Roger porphyry as predicted by the company's VMS model.

Hole AUR-26-03 intersected strong massive to semi-massive pyrite-chalcopyrite mineralization over intervals of 8.1 m (627.9 to 636.0 m) and 4.0 m (669.3 to 673.3 m) overlying the Roger zone. These intersections are interpreted to correspond to a strong off-hole EM conductor identified from surveys completed last fall and appear to confirm the company's VMS thesis. Assays from this hole are pending.

Hole AUR-26-04A, located 250 m southwest of 2026-03, intersected numerous wide intervals of disseminated, stringer and semi-massive pyrite-chalcopyrite mineralization of between 99.0 and 234.0 m and between 452.7 and 586.8 m in the hole. Individual mineralized intercepts of between 1.5 m and 24.0 m were encountered. Intense hydrothermal alteration characterizes the mineralized zones. Assays for this hole are pending.

Hole AUR-26-05, located 250 m southwest of 26-04A, was drilled to test the southwestern continuation of the Roger copper-gold zone and test for massive sulphide mineralization immediately south of the historical Roger resource. Disseminated, stringer and semi-massive sections containing between 2 and 10 per cent pyrite-chalcopyrite-molybdenite were observed throughout the hole between 88.6 and 234.0 m in the hole. Mineralization was accompanied by moderate to strong chlorite, silica and sericite alteration. Assays from this hole are pending.

3-D resource model indicated strong potential for expansion

A preliminary 3-D model was 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 project.

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 base metal sulphide intersections returned from historical drilling (see the company's press release dated Nov. 12, 2025) occur along the northeastern and southwestern 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), believed to be related to massive base metal sulphide mineralization, has also been observed in that direction. Also, the Leapfrog model shows a distinct fault termination of the northeastern limits of the Roger zone. In conjunction with earlier alteration modelling, geology northeast of the interpreted fault has been downdropped vertically between 250 and 300 m. Drilling has intersected strong silica alteration and sulphide mineralization at the 350-metre vertical level.

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, Geo (No. 617), a qualified person as defined in National Instrument 43-101.

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