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SOI.V ·

Sirios Starts Exploration Drilling to the East of the Cheechoo Gold Deposit

Exploration Programs

TSX-V: SOI October 18, 2023

Sirios Starts Exploration Drilling to the East of the Cheechoo Gold Deposit

MONTREAL (QUEBEC) – Management of SIRIOS RESOURCES INC. (TSX -V: SOI) is

pleased to announce the start of a 1,200-metre diamond drilling program on Sirios' Cheechoo gold

property in Eeyou Istchee, James Bay, Quebec. The proposed holes will test the lateral and depth

continuity of gold mineralization discovered in the 2022 trenches (Figure 1), from which an

interval grading 2.65 g/t Au over 11.0 m (Figure 2) was obtained. This gold mineralization,

identified in meta -sedimentary rocks, was also intersected in holes #67, 129 and 269, which

included an interval of 0.9 g/t Au over 15.7 m (ref.: press release dated 04/24/2018).

Dominique Doucet, President of Sirios, stated: "We are very excited to follow up on the excellent

results we initially obtained on surface in the area we refer to as 'Meta-Sediments' outside the

Cheechoo deposit. Gold mineralization in this area is hosted in meta-greyackes, the same host rock

as the nearby Éléonore mine, suggesting the potential to discover not only a new zone, but perhaps

even another gold deposit."

Figure 1: Location of the three summer 2022 trenches and drill holes in the” Meta-Sediments” area.

Figure 2: Central part of stripping 2022-B.

About Cheechoo Property

Sirios’ 100% owned Cheechoo property is in the Eeyou Istchee James Bay region of Quebec,

approximately 800 km north of Montreal, 200 km east of Wemindji and less than 10 km from

Newmont’s Eleonore gold mine.

The last update of the mineral resource estimate for Cheechoo, based on an open pit constrained

model, includes an indicated resource of 1.4 million ounces of gold contained in 46.3 million

tonnes at an average grade of 0.94 g/t Au , and an inferred resource of 0.5 million ounces of

gold contained in 21.1 million tonnes at an average grade of 0.73 g/t Au (ref.: press release dated

12/06/2022).

About Sirios

Sirios Resources is a Canadian -based mining exploration company focused on developing its

portfolio of high-potential gold and lithium properties in the Eeyou Istchee James Bay region of

Quebec.

Cautionary note regarding forward-looking information

This news release contains “forward -looking information” within the meaning of applicable

Canadian securities legislation based on expectations, estimates and projections as at the date of

this news release. Forward-looking information involves risks, uncertainties and other factors that

could cause actual events, results, performance, prospects and opportunities to differ materially

from those expressed or implied by such forward -looking information. Factors that could cause

actual results to differ materially from such forward -looking information include, but are not

limited to, capital and operating costs varying significantly from estimates; the preliminary nature

of metallurgical test results; delays in obtaining or failures to obtain required governmental,

environmental or other project approvals; uncertainties relating to the availability and costs of

financing needed in the future; changes in equity markets; inflation; fluctuations in commodity

prices; delays in the development of projects; the other risks involved in the mineral exploration

and development industry; and those risks set out in the Company’s public documents filed on

SEDAR at www.sedar.com. Although the Company believes that the assumptions and factors

used in preparing the forward looking information in this news release are reasonable, undue

reliance should not be placed on such information, which only applies as of the date of this news

release, and no assurance can be given that such events will occur in the disclosed time frames or

at all. The Company disclaims any intention or obligation to update or revise any forward- looking

information, whether as a result of new information, f uture events or otherwise, other than as

required by law.

The estimate of Inferred Mineral Resources mentioned in this press release conform to National

Instrument 43 -101 standards and was prepared by Pierre -Luc Richard, P. Geo., independent

qualified person, as defined by NI 43-101 guidelines. The effective date of the estimate is October

31, 2020. The above -mentioned mineral resources are not mineral reserves as they do not have

demonstrated economic viability. The quantity and grade of the reported Infe rred Mineral

Resources are conceptual in nature and are estimated based on limited geological evidence and

sampling. Geological evidence is sufficient to imply but not verify geological and grade or quality

continuity.

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.

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Contact:

Dominique Doucet, President,

P.Eng. Tel: (450) 482-0603

[email protected]

website:

www.sirios.com