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Sirios intersects 97.5 g/t Au over 2.4 meters in the Eclipse area at Cheechoo

Drill Results

TSX-V: SOI August 21, 2018

Sirios intersects 97.5 g/t Au over 2.4 meters in the Eclipse area at Cheechoo

MONTREAL – Management of Sirios Resources Inc. (TSX-V: SOI) is pleased to announce

the results of four drill holes undertaken in the Eclipse area , located at approximately 750 metres

west of the main drilled area on the Cheechoo gold property. Drill holes #161 and 163

intersected respectively 49.5 g/t Au over 2.2 m and 97.4 g/t Au over 2.4 m. These mineralized

intervals are part of a high-grade zone that was intersected previously by drill holes #95, 97 and

99, yielding 11.9 g/t Au over 13.5 m, including 100 g/t Au over 1 m (press release May 9, 2017).

This zone is continuous laterally for approximately 150 metres, between #161 and 97. It is

interpreted as being the depth extension of the high-grade veins system of the Moni S howing,

exposed on the surface o n the neighbouring Éléonore S outh property, located only a few metres

south of the border between the two properties.

Dominique Doucet, President, states: "The zone of high- grade gold veins of the Eclipse area

represents an important asset to our Cheechoo project. It adds high-grade veins to the ones in the

large, low-grade gold envelope of the main area located to the east. The near surface occurrence

of these gold-rich veins can provide a greater flexibility to a future mining project."

Significant results of drill holes CH18-161, 163, 166 and 168

Drill

hole

CH18-

From To Width Au

(g/t) *

161

24.5 28.5 4 2.1

35.5 37 1.5 5.5

91.8 94 2.2 49.5

incl. 91.8 92.6 0.8 133.9

163

82.9 84.2 1.3 3.1

90 92.4 2.4 97.5

incl. 90.8 91.6 0.8 289.7

166 47.7 49.4 1.7 1

64.3 66.8 2.5 1.2

168 106.4 109 2.6 1.2

*Grade un-cut

The gold zone of the Eclipse area forms a geometrically complex plain with an east-northeast

orientation and dipping at approximately 60 degrees to the north- west. The trace of the zone at

surface on the map below is based on surface data of Éléonore South (press release of Eastmain

Res. October 17, 2017) and on multiple mineralized boulders found on surface on Cheechoo

(press release February 28, 2017)

A table of collar coordinates is available at the following link:

http://www.sirios.com/BD-Coordinates-Drilled-20180821/

Sirios’ 100% owned Cheechoo property is located at Eeyou Istchee James Bay, Quebec,

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

Goldcorp’s Éléonore gold mine.

Assay quality control

All NQ drill core was described by Sirios personnel at the Cheechoo exploration camp. The drill

core was then sent to Rouyn- Noranda to be sawed in half, with one half sent to a commercial

laboratory for assaying and other half retained for future reference. A strict QA/QC program was

followed by integrating blanks and certified reference standar ds to the core sample sequence.

The samples were assayed for gold by fire assay with an atomic absorption finish by Actlabs in

Ste-Germaine-Boulé. Samples assaying more than 2 g/t, as well as drill core samples with visible

gold, were assayed by fire assay with metallic sieve based on a 1 kg sample.

Jordi Turcotte, MSc., Geo., and Nicole Gauthier, MSc., Geo, Qualified Persons pursuant to

National Instrument 43- 101, have prepared and verified the technical information of this press

release, as well as reviewing the final text.

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

-30-

For information, contact:

Dominique Doucet, Eng., President, CEO [email protected]

Nicole Gauthier, Exploration Manager, [email protected]

Tel.: (514) 510-7961