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Callinex Announces Preliminary Magnetotelluric (MT) Geophysical Survey Results at the Pine Bay Project, Flin Flon Mining District, MB

Exploration Programs Sampling & Geoscience Results

Callinex Announces Preliminary Magnetotelluric (MT) Geophysical Survey

Results at the Pine Bay Project, Flin Flon Mining District, MB

Highlights:

Initial results have tight correlation with known Pine Bay deposit and structure;

Preliminary survey has identified a large target at depth on the Pine Bay horizon which could potentially represent the fold limb of the

Descendent;

MT survey is currently being expanded with longer survey lines over the Pine Bay, Descendent and Alchemist deposits and target area Odin; and

Survey being completed to provide additional information about the depth, location and potential of the deposits at the Project.

VANCOUVER, BC

,

March 4, 2024

/CNW/ -

Callinex Mines Inc.

(the "Company" or "Callinex") (TSXV: CNX) (OTCQX: CLLXF) is pleased to announce preliminary

results from the recently announced

magnetotelluric ("MT") geophysical survey

on the Company's 100% owned Pine Bay Project (the "Project") located in the Flin

Flon Mining District of

Manitoba

(

See news release dated

January 29, 2024

). The survey is being completed to add to Callinex's robust geophysical data set and

further aid exploration as Callinex focuses on expanding its numerous high-grade copper, gold, silver and zinc rich Volcanogenic Massive Sulphide ("VMS")

deposits at the Project.

The Company has received preliminary results from the MT survey over the Pine Bay where a 1km line of MT data has been collected and processed (

Pine Bay Project Plan View with Proposed MT Survey Lines

). MT is a geophysical tool that is used in mineral exploration to identify systems that produce

conductive minerals such as copper, gold and silver and mapping of geologic structures and features such as faults and folds. The system is known to have a

depth penetration from

50m

to several kilometers below the surface.

Preliminary results from the MT survey have, to date, tightly defined the known Pine Bay deposit as well as the known Pine Bay horizon/structure that hosts the

mineralization (

Preliminary Pine Bay MT Survey Data

). Additionally, the survey data has highlighted a sizeable low resistivity target emerging at depth which could

potentially represent the fold limb of the recently announced Descendent discovery (

See news releases dated

September 12, 2023

and

January 22, 2024

).

Previously, low resistivity has been a physical rock property the Company has used successfully in exploration for high-grade VMS deposits at the Project. For

example, the Company targeted low resistivity targets identified through an Induced Polarization ("IP") geophysical survey which was critical in the initial discovery

of the Rainbow deposit.

Preliminary Pine Bay MT Survey Results - March 2024 (CNW Group/Callinex Mines Inc.)

All the deposits discovered to date at the Pine Bay Project have a very steep dip and plunge and sit along a number of tight folds. Of particular interest is

mapping the structure at depth between the Pine Bay deposit and the emerging Descendent discovery where mineralized horizons/folds are interpreted to

converge at depth. Deposits that sit at the nose of a fold can host significantly wider lenses of mineralization and with it the potential to add significant volume

more quickly.

Based on these exciting preliminary results, the Company has mobilized Abitibi Geophysics ("Abitibi"), in partnership with Zonge International ("Zong"), to expand

the MT survey over the the Pine Bay, Descendent, Alchemist and target area Odin. The survey will cover 3km over each of the respective areas instead of the

originally planned 1km survey lines. The longer survey lines over each area will provide a higher confidence data set and better resolution at depth. The survey will

no longer be planned to go over the Rainbow deposit, as advised by Abitibi and Zong, due to its proximity to the high-voltage hydroelectric power line that sits in

close proximity that severely impacts the quality of the survey data.

Pine Bay Plan View with Proposed MT Survey Lines - March 2024 (CNW Group/Callinex Mines Inc.)

The number of deposits at Pine Bay are located within the Baker Patton Felsic Complex, one of the largest and most highly altered accumulations of felsic rocks

within the Flin Flon Greenstone Belt. The new Descendent discovery is directly associated with a major alteration zone that's previously been identified at surface

and spans

1,100m

by

700m

. Since the huge alteration zone seen at surface is structurally overturned, the exploration thesis is that the massive sulphides

associated with this mineralizing event would be preserved at depth, which we are now intersecting with the Descendent discovery (

See news release dated

January 22, 2024

). Typically, there is a correlation between the size of an alteration zone and the size of the VMS deposit it is

associated with. The Company is completing the MT survey to help provide additional information about the depth, location and potential of the Descendent,

Rainbow and other deposits at the Project.

Looking forward, the Company remains focused on expanding the current resource base through additional step-out drilling with plans for an aggressive 2024

exploration campaign. Callinex is building upon an indicated mineral resource on the Rainbow deposit of 3.44 Mt grading 3.59% CuEq for 272.4 Mlb CuEq (238.3

Mlb Cu, 56.9 Mlb Zn, 37.6 koz Au, 692.8 koz Ag, 2.3 Mlb Pb), an inferred mineral resource on the Rainbow deposit of 1.28 Mt grading 2.95% CuEq containing

83.4 Mlb CuEq (72.1 Mlb Cu, 19.5 Mlb Zn, 11.1 koz Au, 222.2

Koz Ag

, 0.8 Mlb Pb) and an inferred mineral resource at the Pine Bay deposit of 1.0 Mt grading

2.62% Cu containing 58.1 Mlb Cu (

See news release dated

July 10, 2023

).

J.J. O'Donnell, P.Geo, a qualified person under National Instrument 43-101, has reviewed and approved the technical information in this news release.

About Callinex Mines Inc.

Callinex Mines Inc.

(TSXV:

CNX

) (OTCQX

: CLLXF)

is advancing its portfolio of base and precious metals rich deposits located in established Canadian

mining jurisdictions. The focus of the portfolio is highlighted by the rapidly expanding Rainbow deposit at its rich VMS Pine Bay Project located near existing

infrastructure in the Flin Flon Mining District. Callinex prepared an indicated mineral resource on the Rainbow deposit of 3.44 Mt grading 3.59% CuEq for 272.4

Mlb CuEq (238.3 Mlb Cu, 56.9 Mlb Zn, 37.6 koz Au, 692.8 koz Ag, 2.3 Mlb Pb), an inferred mineral resource on the Rainbow deposit of 1.28 Mt grading 2.95%

CuEq containing 83.4 Mlb CuEq (72.1 Mlb Cu, 19.5 Mlb Zn, 11.1 koz Au, 222.2

Koz Ag

, 0.8 Mlb Pb) and an inferred mineral resource at the Pine Bay deposit

of 1.0 Mt grading 2.62% Cu containing 58.1 Mlb Cu (see news release dated

July 10, 2023

). The second asset in the portfolio is the Nash Creek Project

located in the VMS rich Bathurst Mining District of

New Brunswick

. A 2018 PEA generates a strong economic return with a pre-tax IRR of 34.1% (25.2% post-

tax) and NPV8% of

$230 million

(

$128 million

post-tax) at

$1.25

Zinc (see news release dated

May 14

, 2018). The third asset, 100% owned Point Leamington

Deposit in

Newfoundland

, is located in one of the richest VMS and Gold Districts in

Canada

. Callinex prepared a pit constrained Indicated Mineral Resource of

5.0 Mt grading 2.5 g/t AuEq for 402 koz AuEq (145.7 koz gold, 60.0 Mlb copper, 153.5 Mlb zinc, 2.0 Moz silver, 1.5 Mlb lead), a pit constrained Inferred

Mineral Resource of 13.7 Mt grading 2.24 g/t AuEq for 986.5 koz AuEq (354.8 koz gold, 110.2 Mlb copper, 527.3 Mlb zinc, 6.2 Moz silver, 7.0 Mlb lead) and

an out-of-pit Inferred Mineral Resource of 1.7 Mt grading 3.06 g/t AuEq for 168.5 koz AuEq (65.4 koz gold, 13.3 Mlb copper, 102.9 Mlb zinc, 1.4

Moz Ag

, 2.6

Mlb lead) (see news release dated

October 25, 2021

).

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

responsibility for the adequacy or accuracy of this release.

Some statements in this news release contain forward-looking information. These statements include, but are not limited to, statements with respect to future

expenditures. These statements address future events and conditions and, as such, involve known and unknown risks, uncertainties and other factors which

may cause the actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or

implied by the statements. Such factors include, among others, the ability to complete the proposed drill program, obtaining satisfactory results from its drill

program and the timing and amount of expenditures. Except as required under applicable securities laws, Callinex does not assume the obligation to update

any forward-looking statement

.

View original content to download multimedia:

https://www.prnewswire.com/news-releases/callinex-announces-preliminary-magnetotelluric-mt-geophysical-survey-results-at-the-pine-bay-project-flin-flon-mining-district-mb-302078117.html

SOURCE

Callinex Mines Inc.

View original content to download multimedia:

http://www.newswire.ca/en/releases/archive/March2024/04/c2873.html

%SEDAR: 00031889E

For further information:

Callinex Mines Inc., Max Porterfield, President and Chief Executive Officer, Phone: (604) 605-0885, E-mail: [email protected]

CO: Callinex Mines Inc.

CNW 06:30e 04-MAR-24