Callinex Provides Update on Drilling to Define High-Grade Copper Rainbow Deposit and Test Priority Targets in the Flin Flon Mining District, MB

Highlights:

• One drill rig has completed 11 holes to define the Rainbow in anticipation of a NI 43-101 resource estimate on the deposit;
• A second rig has begun to test three of the five previously announced target areas; and
• Assays pending on all holes from the current drill campaign.

VANCOUVER, July 19, 2022 - Callinex Mines Inc. (the "Company" or "Callinex") (TSXV: CNX) (OTCQX: CLLXF) is pleased to announce that it has completed 21 drill holes during the ongoing 2022 drilling campaign (the "Campaign") at its Pine Bay Project (the "Project") located 16km from Flin Flon, MB (District Overview Map). The 21 holes drilled to date have completed 12,950 meters of the fully funded 20,000 meter drilling campaign with a focus on delineating the high-grade copper Rainbow Deposit (the "Rainbow") and test recently identified regional exploration targets.

One drill rig has completed 11 drill holes as the Company completes step out and infill drilling on the Red, Orange and Yellow zones of the Rainbow Deposit (Rainbow Deposit Long Section). The Company anticipates another 9 holes will be completed on the Rainbow before the end of this campaign and ahead of the publication of a maiden NI 43-101 resource estimate on the deposit. Additionally, re-sampling of the historic core from the Pine Bay deposit is underway in preparation for an updated NI 43-101 resource estimate that is planned. Rainbow and Pine Bay are located on Callinex's mineral lease, less than 250m from a high-voltage power-line and 550m from a historic shaft with direct road access to processing facilities in Flin Flon, MB.

A second rig has begun testing three of the five high-priority exploration targets that were recently identified (Pine Bay Project Plan View). The Company has drilled eight holes to test electromagnetic ("EM") geophysical targets identified at the base of the interpreted growth fault that hosts Rainbow and five other deposits, three of which have seen some level of historic production (See News Release dated March 10, 2022). Two drill holes tested Anomaly A and six holes tested Anomaly B which are being processed and pending assay and geochemical results. The Company plans to return Anomaly B prior to the conclusion of the current exploration campaign. Currently, the Company is planning to mobilize to test an additional previously unannounced priority Induced Polarization ("IP") and coincident EM target located between Anomaly B and Rainbow based on results to date.

The Company has tested Target Area 2, one of three targets identified from regional induced polarization and EM surveys completed along 5.5km of the trend that hosts the Rainbow and Sourdough deposits and past-producing Centennial Mine (See News Release dated February 2, 2022). Based on favorable geology intersected and results from a subsequent borehole pulse EM ("BPEM") the Company has plans to immediately follow-up with additional drill testing.

Additionally, Callinex is currently in the process of refining Target Area 1 by completing a refined BPEM survey on drill hole PBM-120 which was drilled in the vicinity. Based on the interpretation of the BPEM survey results a exploration drill hole will be planned to test this target area.

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

Figure 1: Flin Flon Mining District Region Overview

Figure 2: Pine Bay Long Section Looking West with 2022 Drilling

Figure 3: Pine Bay Plan View with Define Exploration Targets and 2022 Drill Traces

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 Discovery at its rich VMS Pine Bay Project located near existing infrastructure in the Flin Flon Mining District. 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. 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), an 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).

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 future drill programs 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.

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SOURCE Callinex Mines Inc.