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SOI.V ·

Sirios Observes Additional Visible Gold in Definition Drilling on the Cheechoo Gold Project, Quebec

Drill Results

TSX-V : SOI August 30, 2021

Sirios Observes Additional Visible Gold in Definition Drilling on the

Cheechoo Gold Project, Quebec

Montreal, Quebec - The management of Sirios Resources Inc. (TSXV: SOI) is pleased to

announce that a total of 4,575 metres of diamond drilling has been completed to date on the

Cheechoo gold property in Eeyou Istchee James Bay, Quebec. Visible gold was observed in

thirty-six instances in thirteen of the nine teen definition diamond drill holes. As previous ly

announced, the presence of visible gold, as well as the lithologies intersected , are in accordance

with the expectations of Sirios' geologists and the modeling of the gold deposit.

The objective of the definition drilling program is to better define the Cheechoo deposit and

initiate an updated resource estimate (as early as 2022) that will allow for a significant amount of

inferred resources to be converted to indicated resources. The improved gold resource

classification of the project will increase the value of the Cheechoo deposit and help advance the

project to a more advanced stage with the completion of a P reliminary Economic Assessment

(PEA).

About the Cheechoo Property

The Cheechoo gold property, wholly- owned by Sirios, is located in Eeyou Istchee James Bay,

Quebec, less than 9 km from Newmont’s Eleonore gold mine. The latest resource estimate for

the Cheechoo project (October 2020) estimated an inferred resource of 2.0 million ounces of

gold contained in 93.0 million tonnes of rock at an average grade of 0.65 g/t Au, with significant

potential to increase this resource (BBA, P-L. Richard, P. Geo.; J. Torrealba, P. Eng.; D.

Evangelista, P. Eng., NI 43- 101 Technical Report, Mineral Resource Estimate Update for The

Cheechoo Project, 31/10/2020).

The scientific and technical content of this press release has been reviewed and approved by

Dominique Doucet, P.Eng. president and CEO of Sirios Resources Inc. and Jordi Turcotte,

P.Geo. senior geologist, both qualified persons under National Instrument 43-101.

About Sirios

A pioneer in the discovery of significant gold deposits in Eeyou Istchee James Bay, Quebec,

Canada, Sirios Resources Inc. is focusing primarily on its Cheechoo gold discovery, while

actively exploring the gold potential of its other properties.

Forward-Looking Statements:

This press release contains "forward -looking statement s" within the meaning of applicable

Canadian securities laws based on expectations, estimates and projections as of the date of this

press release. Forward -looking statements involve risks, uncertainties and other factors that

could cause actual events, re sults, performance, expectations and opportunities to differ

materially from those expressed or implied by such forward- looking statements. Factors that

could cause actual results to differ materially from those indicated in such forward- looking

statements include, but are not limited to: capital and operating costs that differ materially from

estimates; the tentative nature of metallurgical test results; delays or failures in obtaining

required governmental, environmental or other approvals; uncertainties related to the availability

and cost of necessary financing in the future changes in financial markets; inflation; fluctuations

in metal prices; delays in project development; other risks relating to the mineral exploration and

development industry; and risks disclosed in public filings of the Company on SEDAR at www.

sedar.com. Although the Company believes that the assumptions and factors used in preparing

the forward-looking statements contained in this news release are reasonable, readers should not

place undue reliance on this information, which speaks only as of the date of this news release,

and there can be no assurance that such events will occur or occur within the time periods

presented. The Company disclaims any intention or obligation to update or revise any forward -

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

required by applicable law.

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

Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Contact :

Dominique Doucet, President, CEO, Eng.

Tel. : (514) 918-2867

[email protected]

website : www.sirios.com