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SOI.V ·

Sirios begins metallurgical tests on Cheechoo.

Metallurgy & Processing

TSX-V : SOI November 5, 2018

Sirios begins metallurgical tests on Cheechoo.

MONTREAL, QUEBEC – Management of SIRIOS (TSX VENTURE: SOI) is

pleased to announce a contract for a series of metallurgical tests was awarded to COREM

of Quebec. The tests will be undertaken on 5.5 tons of drill core samples from the

Cheechoo gold property.

The sample material comes from three PQ * calibre drill holes completed during the last

drilling campaign on Cheecho o, Eeyou Istchee, James Bay, Quebec. Drill holes #195,

197 and 198, totalling 454.5 metres, duplicated a portion of NQ drill holes #112, 108 and

86 as illustrated on the attached fi gure. These three drill holes were selected to represent

the high and low -grade gold mineralization found in the M ain area. These holes were

drilled and sampled to meet the following objectives:

1. Obtain a significant amount of material to undertake geostatistical and

metallurgical tests.

2. Evaluate the variability of gold grades for the three twin drill holes.

3. Evaluate the variability of gold grades between the standard drill core sampling

protocol with larger composites samples in the same drill hole.

4. Characterize the gold nugget effect.

The drill core is being prepared to be sent to COREM laboratories. To achieve objective

#2, the PQ drill core was sawed to yield a quantity of rock equivalent to a NQ half -core,

which is approximately 2.3 kg per metre, in order to duplicate the standard sample

protocol and assay used for NQ core. The remainder of the material of approximately

12.7 kg per metre, will be metallurgically processed for gravimetric gold recovery and

cyanidation, such to evaluate objectives #3 and 4.

In addition to the metallurgical tests, comminution test, as well as quantitative

mineralogy and gold deportment studies were ordered. The knowledge acquired by these

studies are crucial and will allow Sirios to optimize the development of the project and a

better understanding of the deposit.

*The diameter of a PQ drill core is 8.5 cm while it is 4.76 for a NQ drill core.

About COREM:

Based in Quebec City, COREM (www.corem.qc.ca) is the largest organization in Canada

totally devoted to mineral processing R/D. Recognized as a world- class organization,

COREM provides a wide range of mineral processing and analytical services to

companies that explore and develop ore bodies and transform or recycle mineral

substances. Its highly qualified staff of 145 employees is able to carry out the most

complex research projects, complete flow sheet d evelopment, pilot testing and ore

characterisation for its members and all mining companies worldwide.

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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For information, contact:

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

Nicole Gauthier, Exploration Manager, [email protected]

Tel.: (514) 510-7961