SUDBURY, Ontario, Sept. 17, 2026 (GLOBE NEWSWIRE) — Magna Mining Inc. (TSX: NICU) (“Magna” or the “Company”) is pleased to provide the results of ongoing exploration and an update on activities at the past-producing Levack Mine, located in the North Range of the Sudbury Basin, Ontario, Canada (Figure 1). Results released today include additional assays from expansion drilling of the R2 Footwall Zone, delineation drilling at the Intermediate Orebody, as well as initial drilling of the near-surface extension of the West Main Orebody (Figure 2).

Highlights from the new assay results include:

R2 Footwall Zone:

  • FNX2038A W1

    And  
9.5% Cu, 2.6% Ni, 17.5 g/t Pt+Pd+Au, 24.9 g/t Ag (23.5% CuEq) over 2.1
metres, from 999.2 metres down hole
15.4% Cu, 1.9% Ni, 7.0 g/t Pt+Pd+Au, 43.0 g/t Ag (19.1% CuEq) over 0.7   
metres, from 1068.6 metres down hole

     
West Main Orebody: 

  • MLV-26-64

  • MLV-26-68

    Including
    And 
1.7% Cu, 4.0% Ni, 3.5 g/t Pt+Pd+Au, 4.1 g/t Ag (8.3% CuEq) over 4.6 metres, 
from 198.7 metres down hole

0.4% Cu, 1.7% Ni, 0.4 g/t Pt+Pd+Au (2.9% CuEq) over 32.9 metres,
from 177.0 metres down hole
0.2% Cu, 3.2% Ni, 0.1 g/t Pt+Pd+Au (4.7% CuEq) over 3.2 metres
1.0% Cu, 2.9% Ni, 1.9 g/t Pt+Pd+Au (5.5% CuEq) over 3.8 metres 

Dave King, SVP Exploration and Geoscience at Magna, stated, “The R2 Footwall Zone continues to provide impressive results such as hole FNX2038A-W1 which returned five distinct veins, including 9.5% Cu, 2.6% Ni, 17.5 g/t Pt+Pd+Au, and 24.9 g/t Ag (23.5% CuEq) over 2.1 metres, and has continued to extend the zone towards the No.3 Orebody. The focus at R2 has now shifted to drilling from new underground platforms on the 2950 level with shorter drillholes and increasing the intersection frequency. In addition, we are excited to see thick, high grade intersections from initial surface drilling at the West Main Zone, including 0.4% Cu, 1.7% Ni, 0.4 g/t Pt+Pd+Au (2.9% CuEq) over 32.9 metres in drillhole MLV-26-68 and 1.7% Cu, 4.0% Ni, 3.5 g/t Pt+Pd+Au (8.3% CuEq) over 4.6 metres in drillhole MLV-26-64. This recent drilling has expanded this zone towards surface and could provide significant nickel-copper-precious metals-rich mineralized material early in the production profile upon a positive restart decision. Of particular interest is the increased copper and precious metal grades in hole MLV-26-64 which could indicate the potential for shallow, footwall style mineralization associated with this part of the Main Orebody, similar to the Keel, Morrison and R2 Footwall Zones.”

Table 1 summarizes the significant assay results received since the last Levack exploration results update (see news release dated June 22, 2026). Two surface drill rigs and three underground rigs have been active at Levack at various times during the past several months. Surface drill rigs have targeted both the R2 Footwall Zone as well as the upper western extension of the Main Orebody above historical mining. Underground drills have focused on continued drilling within the R2 Footwall Zone and the Intermediate Orebody from the 8450 Level exploration drift. Most recently, development of the 2950 Level exploration drift was completed in early August and two rigs are now active on this level, one completing infill definition drillholes within the R2 Footwall Zone and a second drilling exploration holes to test a geophysical target located between the R2 Footwall Zone and the Morrison Footwall Cu-PGE Deposit.

Today’s drill results from the R2 Footwall Zone are focused on the upper portions of the known mineralization to better define the veins and understand the relationship to the No.3 Orebody (Figure 3). They include assays from an additional three wedge holes drilled from surface, each of which intersected multiple mineralized veins. Drillhole FNX2038A-W1 intersected five distinct veins over 91.5 metres including 9.5% Cu, 2.6% Ni, 17.5 g/t Pt+Pd+Au, and 24.9 g/t Ag (23.5% CuEq) over 2.1 metres from 999.2 metres down hole and successfully expanded Magna’s drilling of the R2 Footwall Zone veins by approximately 30 metres towards the No.3 Orebody which is situated approximately 75 metres up dip. The R2 Zone remains open up dip towards the No. 3 Footwall Zone as well as at depth to the south. Since the completion of the 2950 Level exploration drift, drilling from this new underground platform has targeted the copper-precious metal veins of the R2 Footwall Zone at the approximate elevation where the 2950 Level would intersect the Zone, in preparation for a potential decision in early Q4 to advance development by an additional 300 metres to provide underground access to the R2 Footwall Zone.

Today’s results from the Intermediate Orebody are from underground drill holes completed on the 8450 Level prior to the completion of development into this zone. Production from this area of the Intermediate Orebody could begin immediately upon a positive restart decision. Further definition and expansion drilling is underway within other areas being considered for early production in the Preliminary Economic Assessment (“PEA”), including the upper western portion of the Main Orebody (Figure 4). Significant widths of high grade nickel contact-type mineralization have been intersected in the initial drilling, including 1.7% Cu, 4.0% Ni, 3.5 g/t Pt+Pd+Au, and 4.1 g/t Ag (8.3% CuEq) over 4.6 metres from 198.7 metres down hole in drillhole MLV-26-64 and 0.4% Cu, 1.7% Ni, 0.4 g/t Pt+Pd+Au, (2.9% CuEq) over 32.9 metres from 177.0 metres down hole in drillhole MLV-26-68. These drill results from the West Main Orebody are located within 150 metres of surface and additional drilling is planned to test the up-plunge extension of this zone, as well as to investigate the potential for shallow, footwall-style mineralization associated with this part of the Main Orebody given the elevated copper and precious metal grades in drillhole MLV-26-64.

Underground development and refurbishment of production hoisting infrastructure have continued to advance in preparation of a formal restart decision at Levack. In July and August, 597 feet of development were completed. This development advanced the 2950 Level drift, located between the Morrison Footwall Cu-PGE Deposit and the R2 Footwall Zone, as well as from the 1800 Level to the 1600 Level ramp, providing additional exploration drilling platforms as well as the potential for early production. Shaft crews are changing guides in the skipping compartments of the shaft, while other crews are completing work on the loading pocket and the rehabilitation of drifts for exploration platforms. Detailed engineering is being completed to support a future portal on surface, which would facilitate a new ramp connecting to the Main, Western Main, Keel, No.1 and No.2 orebodies.

Magna Commends the Government of Canada on the Productivity Mega Deduction

Magna Mining commends the Government of Canada for its September 15, 2026, announcement of the Productivity Mega Deduction and the proposed changes to the tax treatment of Canadian Development Expenses (“CDE”). The proposed measures, including the ability to immediately expense 100% of eligible CDE incurred on or after September 15, 2026, represent an important step toward improving the investment environment for Canadian mining and encouraging the development of critical mineral resources. For Magna, these changes have the potential to provide meaningful benefits as the Company advances its portfolio of Sudbury Basin projects, including the Levack Mine and Crean Hill Project, by improving the after-tax economics of eligible development expenditures, strengthening project cash flows and potentially accelerating the deployment of capital into mine development and related infrastructure. Magna believes that a competitive and predictable tax framework can play an important role in supporting new mine development, investment and high-quality employment in Sudbury and across Canada’s critical minerals sector.

The Company is currently evaluating the potential impact of the Productivity Mega Deduction on the Levack PEA and the Crean Hill Pre-Feasibility Study (“PFS”) and now expects the results of both studies to be released in the first half of October.

Table 1: Summary of Drillhole Results

                                     
  Drillhole Property Zone   From
(m)
To
(m)
Length (m) Cu % Ni % Co % Pt g/t Pd g/t Au g/t Ag g/t Pt+Pd
+Au g/t
NiEq CuEq  
  FNX2038-W1 Levack R2   977.7 981.7 4.0 2.8 1.4 0.0 1.0 0.7 0.3 8.1 2.0 3.3 5.2  
        including 977.7 978.5 0.8 7.8 6.4 0.0 3.7 3.1 0.1 20.0 6.9 11.4 18.0  
        and including 981.3 981.7 0.4 10.7 0.6 0.0 1.7 0.7 2.8 32.0 5.2 8.8 13.9  
        and 999.2 1001.3 2.1 9.5 2.6 0.0 3.2 2.0 12.2 24.9 17.5 14.8 23.5  
        and 1038.5 1039.0 0.5 4.2 2.5 0.0 2.2 2.1 0.3 16.0 4.6 5.6 8.8  
        and 1052.6 1053.0 0.4 1.9 1.4 0.0 1.3 1.0 0.1 7.0 2.3 2.8 4.4  
        and 1068.6 1069.2 0.7 15.4 1.9 0.0 2.7 4.2 0.1 43.0 7.0 12.1 19.1  
  FNX2038-W2 Levack R2   1012.4 1013.4 1.0 0.7 2.5 0.1 3.4 2.3 0.1 2.0 5.8 3.7 5.9  
        and 1017.7 1018.4 0.6 0.6 2.9 0.0 2.2 4.1 0.1 1.0 6.4 3.9 6.2  
        and 1048.4 1049.0 0.6 0.3 4.6 0.1 4.1 1.7 0.5 1.0 6.3 5.5 8.7  
  FNX6070-W2 Levack R2   788.0 788.4 0.4 0.8 0.2 0.0 2.2 2.5 0.5 6.0 5.2 1.7 2.6  
        and 1035.7 1036.1 0.3 1.1 0.3 0.0 1.3 1.0 1.5 9.0 3.8 2.1 3.3  
        and 1046.0 1047.3 1.3 1.2 0.2 0.0 0.4 0.4 4.2 11.0 5.0 3.0 4.7  
        and 1050.5 1060.0 9.5 2.2 0.2 0.0 1.2 2.0 1.0 13.6 4.3 2.6 4.1  
        including 1053.0 1053.4 0.4 26.0 1.5 0.0 1.1 11.8 2.5 146.0 15.5 20.2 31.9  
        and including 1057.6 1057.9 0.3 13.3 1.6 0.0 1.2 11.5 12.5 78.0 25.2 17.4 27.5  
        and 1071.2 1072.8 1.7 13.0 2.0 0.0 4.1 11.3 3.5 85.2 19.0 13.7 21.7  
        including 1071.5 1072.2 0.8 27.3 4.0 0.0 7.4 23.5 2.0 175.0 32.9 25.8 40.7  
  MLV-26-46 Levack Footwall   98.1 98.4 0.3 0.2 0.1 0.0 4.2 3.3 0.6 16.0 8.1 1.7 2.8  
        and 99.7 100.0 0.3 0.4 0.1 0.0 3.7 4.4 1.2 22.0 9.3 2.3 3.6  
  MLV-26-47 Levack Footwall   No significant Results  
  MLV-26-48 Levack Footwall Exploration   No significant Results  
  MLV-26-49 Levack Intermediate   51.8 52.3 0.5 2.8 0.4 0.1 2.0 1.3 0.7 5.0 3.9 3.1 4.9  
  MLV-26-50 Levack Intermediate   60.5 62.1 1.6 0.4 1.1 0.0 0.5 1.5 0.1 3.4 2.1 1.5 2.4  
        and 73.8 74.2 0.4 0.2 2.1 0.0 1.3 2.3 0.0 3.0 3.6 2.5 4.0  
  MLV-26-51 Levack Intermediate   34.0 35.4 1.4 2.0 2.6 0.1 2.0 3.1 0.2 7.7 5.3 4.5 7.0  
        and 24.4 24.7 0.3 1.2 1.0 0.0 0.5 0.5 0.2 7.0 1.2 1.8 2.9  
  MLV-26-52 Levack Intermediate   42.5 44.3 1.7 1.1 1.8 0.0 1.2 0.3 0.2 3.3 1.7 2.6 4.1  
  MLV-26-53 Levack Intermediate   35.2 36.6 1.4 1.4 0.6 0.0 0.9 1.9 0.1 4.2 2.9 1.8 2.9  
  MLV-26-54 Levack Intermediate   91.9 99.2 7.4 1.3 0.8 0.0 0.9 1.6 0.1 4.3 2.6 1.9 3.1  
        including 98.5 99.2 0.8 7.2 2.4 0.0 2.8 3.5 0.3 22.8 6.6 7.6 12.1  
      R2 and 424.0 424.3 0.3 15.3 0.6 0.0 1.7 8.5 6.0 58.0 16.2 14.3 22.6  
  MLV-26-58 Levack Intermediate   31.7 32.0 0.3 0.6 2.1 0.1 0.7 0.9 0.3 3.0 1.8 2.6 4.2  
          73.2 75.5 2.3 1.4 0.7 0.0 0.4 1.4 0.1 5.2 1.8 1.8 2.9  
          93.1 93.6 0.4 1.1 1.2 0.0 0.8 0.9 0.1 7.0 1.7 2.0 3.2  
          112.5 113.0 0.5 1.5 0.5 0.0 0.7 3.2 0.2 9.0 4.1 2.1 3.3  
          126.3 126.6 0.3 0.4 3.3 0.0 2.5 4.0 0.1 2.0 6.6 4.2 6.6  
          134.7 135.2 0.5 2.4 0.3 0.0 0.7 0.9 0.1 11.0 1.7 2.0 3.2  
          147.4 148.6 1.2 1.0 1.5 0.0 1.4 1.9 0.1 3.8 3.5 2.5 4.0  
          155.3 159.1 3.8 2.4 2.7 0.1 2.0 2.4 0.1 7.4 4.5 4.6 7.2  
        and 166.0 166.5 0.5 1.2 1.1 0.1 3.0 2.2 0.2 5.0 5.4 2.8 4.5  
  MLV-26-60 Levack MOB   189.2 196.6 7.5 0.4 2.3 0.1 0.0 0.0 0.0 1.0 0.1 2.2 3.5  
        including 189.2 191.9 2.7 0.4 3.2 0.1 0.0 0.1 0.0 1.0 0.1 3.0 4.8  
        and including 194.4 196.6 2.2 0.6 3.3 0.1 0.0 0.1 0.0 1.0 0.1 3.3 5.2  
  MLV-26-64 Levack MOB   198.7 203.3 4.6 1.7 4.0 0.2 1.5 1.9 0.2 4.1 3.5 5.2 8.3  
  MLV-26-65 Levack MOB   178.1 184.8 6.7 0.4 1.3 0.0 0.1 0.1 0.0 1.0 0.3 1.5 2.3  
  MLV-26-68 Levack MOB   177.0 209.9 32.9 0.4 1.7 0.0 0.2 0.2 0.0 1.1 0.4 1.8 2.9  
        including 178.0 181.2 3.2 0.2 3.2 0.1 0.0 0.0 0.0 1.0 0.1 3.0 4.7  
        and 189.5 204.4 15.0 0.5 1.9 0.0 0.1 0.1 0.0 1.1 0.2 2.0 3.2  
        including 206.0 209.9 3.8 1.0 2.9 0.1 0.7 1.1 0.1 1.8 1.9 3.5 5.5  

All lengths are downhole length. True widths are highly variable and estimated to range from 30-80% of downhole length. Ni Eq % = (Ni% x 85% Recovery 2204 x Ni Price $/lb) + (Cu% x 96% Recovery x 2204 x Cu Price $/lb) + (Co% x 56% Recovery x 2204 x Co Price $/lb) + (Pt g/t x 69% Recovery / 31.1035 x Pt $/oz) +(Pd g/t x 68% Recovery / 31.1035 x Pd $/oz) + (Au g/t x 68% Recovery / 31.1035 x Au $/oz))/2204 x Ni $/lb. Cu Eq % = (Ni% x 85% Recovery 2204 x Ni Price $/lb) + (Cu% x 96% Recovery x 2204 x Cu Price $/lb) + (Co% x 56% Recovery x 2204 x Co Price $/lb) + (Pt g/t x 69% Recovery / 31.1035 x Pt $/oz) +(Pd g/t x 68% Recovery / 31.1035 x Pd $/oz) + (Au g/t x 68% Recovery / 31.1035 x Au $/oz))/2204 x Cu $/lb. Metal prices in US$: $7.72/lb Ni, $4.88/lb Cu, $18.12/lb Co, $1,410/oz Pt, $1,156/oz Pd and $3,815/oz Au.  

Figure 1: Location of Magna Mining’s Properties, Including the Levack Mine and Key Sudbury Infrastructure


Figure 2:  3D Longitudinal View Looking North, Showing the Levack Mine Mineralized Zones in Relation to the R2 Footwall Zone, Intermediate Orebody and West Main Orebody.


Figure 3:  3D Longitudinal View Looking North Northeast, Showing the R2 Footwall Zone and recent Assay Results.


Figure 4:  3D Longitudinal View Looking North-Northwest showing the Recent Drilling within the Near Surface Western Extension of the Main Orebody

Table 2: Drillhole Collar Coordinates

                 
  BHID Easting Northing Elevation Azimuth Dip Depth  
  FNX2038A-W1 471667 5167001 398 98 59 1182  
  FNX2038A-W2 471667 5167001 398 98 59 1180  
  FNX6070-W2 472109 5166291 339 17 72 1145  
  MLV-26-46 471829 5166195 -705 20 10 150  
  MLV-26-47 471829 5166195 -705 351 11 204  
  MLV-26-48 471829 5166196 -705 355 -24 176  
  MLV-26-49 471999 5166519 -169 319 6 99  
  MLV-26-50 472000 5166518 -169 318 -6 99  
  MLV-26-51 471999 5166519 -169 318 35 46  
  MLV-26-52 471999 5166518 -169 282 10 47  
  MLV-26-53 471999 5166518 -169 282 35 46  
  MLV-26-54 472004 5166523 -170 19 46 643  
  MLV-26-58 472004 5166523 -169 354 37 610  
  MLV-26-60 471531 5166372 336 305 52 227  
  MLV-26-64 471529 5166371 336 304 55 224  
  MLV-26-65 471529 5166370 336 294 59 230  
  MLV-26-68 471530 5166371 336 322 90 211  

Qualified Person for Technical Information

The scientific and technical information in this press release has been reviewed and approved by David King, M.Sc., P.Geo. Mr. King is the Senior Vice President, Exploration and Geoscience for Magna Mining Inc. and is a qualified person under National Instrument 43-101.

Quality Assurance and Control

Sample QA/QC procedures for Magna have been designed to meet or exceed industry standards. Drill core is collected from the diamond drill and placed in sealed core trays for transport to Magna’s core facilities. Levack drilling utilizes NQ or BQTK sized core and McCreedy West utilizes BQTK sized core. The core is then logged, and samples marked in intervals of up to 1.5m. Levack drill core is split and sampled ½ core, and McCreedy West is whole core sampled. Samples are then put into plastic bags with 10 bagged samples being placed into rice bags for transport to SGS Laboratories in Garson, Ontario for preparation, which are then shipped to Lakefield, Ontario for analysis.  Samples are submitted in batches of 50 with 4 QA/QC samples including, 2 certified reference material standards and 2 samples of blank material.

Cautionary Statement on Forward-Looking Statements

All statements, other than statements of historical fact, contained or incorporated by reference in this press release constitute “forward-looking statements” and “forward-looking information” (collectively, “forward-looking statements”) within the meaning of applicable securities laws. Generally, these forward-looking statements can be identified by the use of forward-looking terminology, such as “may”, “might”, “potential”, “expect”, “anticipate”, “estimate”, “believe”, “could”, “should”, “would”, “will”, “continue”, “intend”, “plan”, “target”, “forecast”, “prospective”, “significant” or other similar words or phrases or variations thereof. Forward-looking statements are necessarily based upon a number of assumptions that, while considered reasonable by management, are inherently subject to business, market, economic, technical and other risks, uncertainties and contingencies that may cause actual results, performance or achievements to be materially different from those expressed or implied by forward-looking statements, including risks and uncertainties relating to the failure of additional drilling and assays to support assumptions, expectations or estimates of potential mineralization, metal tons or grade, such as in the R2 Footwall Zone and the West Main Orebody at the Levack mine, the failure of additional drilling to support additional expansion or delineation of estimated resources, the failure to have accurately estimated declared mineral resources or mineral reserves, the failure of additional drilling to support production planning or replenish production or mined ore, the failure to maintain an adequate rate of development or access to stopes to maintain production, the failure to meet production, cost, cash flow or development expectations, forecasts or guidance, the lack of availability of drill rigs to implement exploration or other programs or the failure to proceed as quickly as planned with additional exploration, development, production or other drilling, continued delays for assay results, the failure to bring the Levack and Crean Hill mines back into production subsequent to the completion of the current preliminary economic assessment and pre-feasibility study now underway for these projects, and other risks disclosed in the Company’s most recent annual information form for the year ended December 31, 2025 , available on the SEDAR+ website (at: www.sedarplus.ca). Although the Company has attempted to identify important risks, uncertainties, contingencies and factors that could cause actual results to differ materially from those expressed or implied in forward-looking statements, there can be no certainty or assurance that the Company has accurately or adequately captured, accounted for or disclosed all such risks, uncertainties, contingencies or factors. Readers should place no reliance on forward-looking statements as actual results, performance or achievements may be materially different from those expressed or implied by such statements. Resource exploration and development, and mining operations, are highly speculative, characterized by several significant risks, which even a combination of careful evaluation, experience and knowledge will not eliminate. Forward-looking statements speak only as of the date they are made. The Company does not undertake to update any forward-looking statements, whether as a result of new information or future events or otherwise, except in accordance with applicable securities laws.

About Magna Mining Inc.

Magna Mining Inc. is a producing mining company with a strong portfolio of copper, nickel, and precious metal assets located in the world-class Sudbury mining district of Ontario, Canada. The Company’s primary asset is the McCreedy West Mine, currently in production, supported by a pipeline of highly prospective past-producing properties including LevackCrean HillPodolsky, and Shakespeare.

Magna Mining is strategically positioned to unlock long-term shareholder value through continued production, exploration upside, and near-term development opportunities across its asset base.

Additional corporate and project information is available at www.magnamining.com and through the Company’s public filings on the SEDAR+ website at www.sedarplus.ca.

For further information, please contact:

Jason Jessup
Chief Executive Officer
or
Paul Fowler, CFA
Executive Vice President
705-482-9667
Email: info@magnamining.com

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