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Magna Mining Announces Additional High- Grade Intercepts near Surface in the 109 Footwall Zone, and Provides an Update on the Preliminary Economic Assessment

Drill Results

Magna Mining Announces Additional High-

Grade Intercepts near Surface in the 109

Footwall Zone, and Provides an Update on the

Preliminary Economic Assessment

Sudbury, Ontario--(Newsfile Corp. - June 20, 2023) - Magna Mining Inc. (TSXV: NICU) ("Magna" or the

"Company") is pleased to release additional assay results from a series of short, near surface drillholes

immediately beneath the surface exposure of the 109 Footwall ("FW") Zone. The surface expression of

this high grade PGM zone has been identified as a potential site for an exploration bulk sample in late

2023, which could be processed through a third-party mill in Sudbury. The technical assessments

necessary for such a third-party milling agreement are already underway and are expected to conclude

in Q3 2023.

Additionally, Magna is pleased to provide an update on the progress of the Preliminary

Economic Assessment (PEA) that was initiated in Q4 2022.

Highlights from the new assay results include:

MCB-23-018: 0.2% Ni, 0.1 % Cu, 5.4 g/t Pt + Pd + Au over 27.0 metres,

including 0.2 % Ni, 0.1% Cu and 11.2 g/t Pt + Pd + Au over 3.9 metres,

and 0.4 % Ni, 0.2% Cu and 11.1 g/t Pt + Pd + Au over 5.7 metres

MCB-23-021: 0.2% Ni, 0.5 % Cu, 7.3 g/t Pt + Pd + Au

over 16.9 metres

including 0.4 % Ni, 5.3% Cu and 11.0 g/t Pt + Pd + Au over 0.3 metres,

and 1.2 % Ni, 7.7% Cu and 12.3 g/t Pt + Pd + Au over 0.3 metres

Jason Jessup, CEO of Magna, stated, "Activities at Crean Hill are progressing on schedule. The

additional 109 FW Zone assay results reported today are part of a definition drilling program to improve

our understanding of the near surface mineralization in this area.

The near surface location of this high-

grade mineralization, along with the proximity to third-party mills in Sudbury, will allow for a low-cost bulk

sampling program and we expect to be able to fund the surface bulk sample from our existing cash

balance. The surface bulk sample is expected to be completed before the end of the year, and it will be a

significant step towards our goal of producing from near surface underground zones of the Crean Hill

deposit via ramp access in in early 2024."

The 109 FW Zone is considered a low sulphide, high-grade platinum, palladium and gold mineralized

zone, hosted within a breccia system extending southwest from the historically mined Main Zone contact

nickel /copper orebody. Results reported today from the near surface portion of the 109 FW Zone are in

addition to the initial assay results reported earlier this month (

See news release dated June 7, 2023

).

Drilling continues to intersect near surface, high grade precious metal mineralization, and improve the

understanding of the distribution of mineralization within the footwall breccia.

The location of the 109 FW Zone diamond drilling is illustrated in Figures 1-2, assay results are

summarized in Table 1, and drillhole coordinates in Table 2.

PEA Update

Magna is also pleased to provide an update on the progress of the ongoing Preliminary Economic

Assessment ("PEA"), which is nearing completion, and expected to be released in late July.

The PEA base-case will consider Crean Hill as a stand-alone operation, with mineralization processed

through one of the third-party mills in Sudbury. In Section 24 of the PEA, an alternative processing

scenario will be evaluated, where Crean Hill material is processed through a future mill at Magna's

Shakespeare Project.

Dave King, SVP Technical Services, added, "The drilling that Magna has completed since releasing the

Mineral Resource Estimate for Crean Hill has been quite positive and has greatly enhanced our

understanding of the footwall zones at the deposit. We now believe that with more detailed wireframing

and block modeling, there may be improvements to the grade of both the 101 and 109 FW Zones. After

internal discussions, the decision has been made to not include any of Magna's drilling in the PEA, in

order to have the PEA completed and released in Q3. These results, along with the remaining 7000-

8000 metres of drilling yet to be completed in 2023, will be included in the next technical study."

Table

1

: Summary of Assay Results

Drillhole

Zone

From (m)

To (m)

Length

(m)

Ni %

Cu %

Co %

Pt g/t

Pd g/t

Au g/t

TPM g/t

NiEq

MCB-23-

001*

109 FW

4.00

5.00

1.00

0.06

0.14

0.01

3.92

1.35

0.53

5.80

1.02

and

14.00

14.90

0.90

0.08

0.07

0.01

2.98

1.61

0.55

5.14

0.97

and

18.18

21.00

2.82

0.05

0.06

0.00

1.28

0.92

0.44

2.64

0.54

MCB-23-

002*

109 FW

3.50

7.00

3.50

0.05

0.10

0.01

0.93

0.51

0.33

1.78

0.40

and

14.00

14.83

0.83

0.12

0.18

0.01

4.52

3.08

1.44

9.04

1.75

and

21.00

22.91

1.91

0.10

0.35

0.01

3.56

2.11

1.16

6.83

1.40

MCB-23-

003*

109 FW

8.95

39.95

31.00

0.74

0.58

0.02

3.25

3.27

2.17

8.70

2.60

including

25.76

28.94

3.18

5.89

1.99

0.10

2.33

7.19

2.82

12.35

9.40

MCB-23-

004*

109 FW

14.32

15.22

0.90

0.10

0.12

0.01

2.66

2.22

1.10

5.98

1.22

and

19.00

20.12

1.12

0.11

0.12

0.01

1.02

0.65

0.41

2.08

0.53

MCB-23-

005*

109 FW

14.98

17.00

2.02

0.10

0.16

0.01

1.34

2.08

0.61

4.04

0.94

MCB-23-

006*

109 FW

1.85

20.00

18.15

0.12

0.21

0.01

2.42

0.93

0.85

4.19

0.89

including

16.14

20.00

3.86

0.18

0.24

0.01

4.53

2.26

1.71

8.50

1.71

MCB-23-

007*

109 FW

3.00

24.00

21.00

0.25

0.80

0.01

6.65

1.41

0.89

8.95

1.90

including

22.12

24.00

1.88

1.51

6.82

0.03

45.87

1.27

1.92

49.06

10.56

MCB-23-

008*

109 FW

13.01

19.43

6.42

0.13

0.24

0.01

3.47

1.07

0.66

5.20

1.03

MCB-23-

009*

109 FW

3.00

22.00

19.00

0.23

0.23

0.01

5.52

4.30

2.56

12.38

2.52

MCB-23-

010*

109 FW

9.03

12.00

2.97

0.12

0.07

0.01

2.49

1.79

0.92

5.20

1.06

and

14.95

16.99

2.04

0.08

0.17

0.01

3.15

0.85

0.58

4.58

0.85

MCB-23-

011*

109 FW

8.95

17.00

8.05

0.13

0.31

0.00

2.87

1.57

0.96

5.40

1.17

MCB-23-

012*

109 FW

8.04

21.00

12.96

0.36

0.56

0.04

2.12

15.17

1.58

18.88

4.77

Including

15.00

19.94

4.94

0.80

1.07

0.10

3.00

38.50

3.41

44.91

11.43

MCB-23-

013*

109 FW

11.72

12.40

0.68

0.05

0.47

0.01

0.06

0.17

0.10

0.33

0.33

MCB-23-

014*

109 FW

44.37

50.00

5.63

0.13

0.38

0.01

3.30

1.84

1.56

6.70

1.44

MCB-23-

015*

109 FW

15.00

26.00

11.00

0.07

0.46

0.01

0.60

0.44

0.38

1.43

0.53

including

18.17

18.49

0.32

0.48

8.04

0.04

2.73

5.60

3.95

12.28

6.36

MCB-23-

016*

109 FW

No Significant Values

MCB-23-

017

109 FW

10.50

11.00

0.50

0.06

0.03

0.01

3.34

1.22

0.71

5.27

0.91

MCB-23-

018

109 FW

20.98

48.00

27.02

0.15

0.12

0.01

2.67

1.73

0.99

5.38

1.13

including

20.98

24.87

3.89

0.18

0.11

0.01

5.11

3.98

2.09

11.19

2.20

including

32.00

37.65

5.65

0.36

0.17

0.01

5.48

3.60

2.06

11.14

2.35

MCB-23-

019

109 FW

14.00

17.98

3.98

0.09

0.07

0.01

3.46

2.59

1.25

7.30

1.40

and

28.00

29.00

1.00

0.09

0.08

0.01

11.50

2.33

1.68

15.51

2.38

MCB-23-

020

109 FW

No Significant Values

MCB-23-

021

109 FW

32.06

49.00

16.94

0.15

0.45

0.01

3.32

2.55

1.41

7.28

1.63

including

37.82

38.12

0.30

0.41

5.34

0.01

3.74

4.07

3.17

10.98

4.71

and

42.88

43.19

0.31

1.23

7.65

0.05

2.21

7.30

2.81

12.32

7.06

MCB-23-

022

109 FW

No Significant Values

MCB-23-

023

109 FW

Assays Pending

MCB-23-

024

109 FW

Assays Pending

MCB-23-

025

109 FW

Assays Pending

MCB-23-

026

109 FW

Assays Pending

*Previously Reported

All lengths are downhole length.

NiEq % = ( (Ni% x 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

gpt x 69% Recovery / 31.1035 x Pt $/oz) +(Pd gpt x 68% Recovery / 31.1035 x Pd $/oz) + (Au gpt x 68% Recovery / 31.1035 x Au $/oz))/2204 x Ni

$/lb

Figure 1: Plan View of the Crean Hill Property Showing the Location of the 109 FW Zone

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/8002/170571_47ac84c4342beb0b_002full.jpg

Figure 2: Plan View of the 109 FW Zone, Showing the Location of Drillholes

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/8002/170571_47ac84c4342beb0b_003full.jpg

Table 2: Drillhole Collar Coordinates

BHID

Easting

Northing

Elevation

Azimuth

Dip

Depth

MCB-23-001

473053

5141781

293

116

38

25

MCB-23-002

473052

5141781

294

89

39

50

MCB-23-003

473052

5141781

294

89

77

50

MCB-23-004

473052

5141781

294

160

38

26

MCB-23-005

473051

5141787

292

91

38

44

MCB-23-006

473051

5141787

292

61

38

38

MCB-23-007

473051

5141787

292

61

60

24

MCB-23-008

473051

5141787

292

32

38

20

MCB-23-009

473046

5141792

292

53

38

22

MCB-23-010

473046

5141792

292

7

63

17

MCB-23-011

473046

5141792

292

335

39

17

MCB-23-012

473037

5141805

288

90

38

22

MCB-23-013

473037

5141805

288

46

38

21

MCB-23-014

473028

5141821

288

120

38

50

MCB-23-015

473027

5141821

288

80

38

26

MCB-23-016

473027

5141821

288

10

38

17

MCB-23-017

473079

5141769

297

340

38

35

MCB-23-018

473079

5141769

297

303

39

50

MCB-23-019

473079

5141769

297

270

38

29

MCB-23-020

473079

5141769

297

270

55

18

MCB-23-021

473080

5141770

297

320

47

51

MCB-23-022

473070

5141754

294

350

42

25

MCB-23-023

473070

5141754

294

310

38

36

MCB-23-024

473061

5141726

293

252

42

80

MCB-23-025

473061

5141726

293

305

38

51

MCB-23-026

473048

5141780

292

265

38

30

*Drillhole Coordinates are in coordinate system NAD 83 Zone 17

Qualified Person

The 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, Technical Services for Magna Mining Inc.

and is a

qualified person under Canadian National Instrument 43-101.

QA/QC

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. The core is then logged, with samples marked in intervals of up to 1.5m. Samples are then

whole core sampled, bagged in plastic bags with 10 bagged samples being placed into rice bags for

transport to AGAT Laboratories in Mississauga Ontario via Gardewine Transport. Designated holes

have been split with a core saw to retain representative samples. Samples are submitted in batches of

50 with 5 QA/QC samples including 2 certified reference material standards, 2 samples of blank

material and 1 lab duplicate.

About Magna Mining Inc.

Magna Mining is an exploration and development company focused on nickel, copper and PGM projects

in the Sudbury Region of Ontario, Canada. The Company's flagship assets are the past producing

Shakespeare and Crean Hill Mines. The Shakespeare Mine is a feasibility stage project which has

major permits for the construction of a 4,500 tonne per day open pit mine, processing plant and tailings

storage facility and is surrounded by a contiguous 180km

2

prospective land package. Crean Hill is a

past producing nickel, copper and PGM mine with a technical report dated August 2022. Additional

information about the Company is available on SEDAR (

www.sedar.com

) and on the Company's

website (

www.magnamining.com

).

For further information, please contact:

Jason Jessup

Chief Executive Officer

or

Paul Fowler, CFA

Senior Vice President

Email:

[email protected]

Cautionary Statement

This press release contains certain forward-looking information or forward-looking statements as

defined in applicable securities laws. Forward-looking statements are not historical facts and are

subject to several risks and uncertainties beyond the Company's control, including statements

regarding the production at the Shakespeare and Crean HIll Mines, the economic and operational

potential of the Shakespeare and Crean Hill Mines, potential acquisitions, plans to complete

exploration programs, potential mineralization, exploration results and statements regarding beliefs,

plans, expectations, or intentions of the Company. Resource exploration and development is highly

speculative, characterized by several significant risks, which even a combination of careful evaluation,

experience and knowledge may not eliminate. All forward-looking statements herein are qualified by

this cautionary statement. Accordingly, readers should not place undue reliance on forward-looking

statements. The Company undertakes no obligation to update publicly or otherwise revise any

forward-looking statements whether as a result of new information or future events or otherwise, except

as may be required by law.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the

policies of the TSX Venture Exchange) accept responsibility for the adequacy or accuracy of this

press release.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/170571