NICU.V · 2025-07-09 12:00:00

Magna Mining Continues to Intersect High Grade Mineralization, Including 2.6% Cu, 8.1% Ni, 17.8 g/t Pt + Pd + Au over 0.6m in the Footwall Beneath the Levack No. 3 Orebody

Drill Results

Magna Mining Continues to Intersect High

Grade Mineralization, Including 2.6% Cu, 8.1%

Ni, 17.8 g/t Pt + Pd + Au over 0.6m in the

Footwall Beneath the Levack No. 3 Orebody

Sudbury, Ontario--(Newsfile Corp. - July 9, 2025) - Magna Mining Inc. (TSXV: NICU) (OTCQX: MGMNF)

(FSE: 8YD) ("Magna" or the "Company") is pleased to provide an update on exploration activities and

assay results from the ongoing exploration at the Levack Mine (Figure 1).

Highlights from the new assay results include:

MLV-25-14A (Levack No.3 Footwall)

0.9% Cu, 1.6% Ni and 6.1 g/t Pt + Pd + Au over 2.9

metres

Including

2.6% Cu, 8.1% Ni, 17.8 g/t Pt + Pd + Au over 0.6 metres

MLV-25-10 (Levack Keel Zone)

25.1% Cu, 0.2% Ni, 4.5 g/t Pt + Pd + Au over 0.3 metres

MLV-25-11 (Levack Keel Zone)

25.7% Cu, 0.3% Ni, 0.8 g/t Pt + Pd + Au over 0.3 metres

And

0.2% Cu, 0.1% Ni, 9.5 g/t Pt + Pd + Au over 2.6 metres

Dave King, SVP Exploration and Geoscience, stated, "We are excited to announce additional assay

results from our ongoing diamond drilling program at Levack, including results from our initial deep

footwall exploration hole beneath the No. 3 Orebody. Drillhole MLV-25-14A intersected Cu-Ni-PGE rich

mineralization up to 2.6% Cu, 8.1% Ni, 17.8 g/t Pt + Pd + Au over 0.6m within an under-explored

structural trend between the No. 3 Orebody and the Morrison Deposit. This style of high-grade, Ni

sulphide veins is similar to the mineralization encountered in the upper levels of the Morrison Deposit

near the contact Ni-Cu zones, which transitioned to Cu-PGE rich veining at depth. I believe the Levack

footwall environment has the potential to host additional significant footwall deposits and we are

encouraged by the results of our initial exploration drilling. We are working to mobilize underground

diamond drills at Levack to continue testing these priority footwall target areas more efficiently over the

coming months."

Diamond Drilling

There are currently two surface diamond drills operating at Levack Mine, one completing near surface

infill and metallurgical drillholes on the No. 1 and No. 2 zones, and a second drill exploring the footwall

environment between the No. 3 Ni-Cu orebody and the Morrison Cu-Ni-PGE Deposit ("Exploration

Target Area" as shown in Figure 3). Assay results presented today, include initial drill results from the

Exploration Target Area located in the footwall environment between the No. 3 and Morrison deposits,

along with additional drill results from the Keel Zone at Levack.

Footwall Exploration Drilling Between the No. 3 & Morrison Deposits

Based on existing drill data, geological and geophysical interpretations, Magna believes that the footwall

environment at Levack remains prospective for new Cu-PGE discoveries. Magna has recently

commenced exploration drilling for Cu-PGE systems in the footwall environment at Levack and has

completed the initial drillhole, MLV-25-014A, confirming mineralization along an interpreted structural

trend between the No. 3 Ni-Cu Orebody and the Morrison Cu-PGE-Ni Deposit (Figures 2-4). Hole MLV-

25-014A returned 1.7% Cu, 0.9% Ni and 3.3 g/t Pt + Pd + Au over 2.4 metres, including 7.9% Cu, 0.9%

Ni and 3.1 g/t Pt + Pd + Au over 0.3 metres, and 0.9% Cu, 1.6% Ni and 6.1 g/t Pt + Pd + Au over 2.9

metres,

including 2.6% Cu, 8.1% Ni and 17.8 g/t Pt + Pd + Au over 0.6 metres. Mineralization was

intersected approximately 100 metres down plunge of the No. 3 orebody towards the Morrison Deposit.

Previous underground drilling associated with the development of the Morrison Deposit intersected high

grade, massive sulphide veins along this structural trend, which remains open to the northeast (Figures 2

and 4). Although these mineralized intervals near drillhole MLV-25-14A are narrow, the structural trend

remains open down-plunge and along strike towards the Morrison Cu-PGE Deposit and sulphide vein

thickness could increase in the appropriate geological environment. Magna is completing downhole

geophysical surveys, and these results will be considered as follow-up drilling continues within this

exploration area. Additional results will be reported as the drilling program progresses.

Keel Zone Drilling

Drilling in the Keel zone has continued to intersect narrow massive sulphide veins, including 25.1% Cu,

0.2% Ni, 4.5 g/t Pt + Pd + Au over 0.3 metres in drillhole MLV-25-10 and 25.7% Cu, 0.3% Ni, 0.8 g/t Pt +

Pd + Au over 0.3 metres in drillhole MLV-25-11 (Figure 5). These narrow massive sulphide intersections

represent incremental expansions on the margins of the known Keel zone. In addition to the Keel Zone

massive sulphide veins, some drillholes have intersected a second zone of lower sulphide, precious

metal mineralization in the footwall of the main Keel Zone vein. These include intersections up to 0.2%

Cu, 0.1% Ni, 9.5 g/t Pt + Pd + Au over 2.7 metres in drillhole MLV-25-11 and 0.8% Cu, 0.4% Ni, 7.4 g/t

Pt + Pd + Au over 3.0 metres in previously reported drillhole MLV-25-02A. Low sulphide, high precious

metal zones are common in footwall environments adjacent to or near the margins of footwall Cu vein

systems, and can form zones of economic mineralization such as the McCreedy West PM Deposit.

Further drilling is required to understand the extent and quantity of this style of mineralization at the

Levack Keel Zone. See Table 1 for a complete summary of assay results reported today. Drillhole collar

information is provided in Table 2.

Figure 1:

Location of Magna Mining Existing Properties, and Key Sudbury Infrastructure