SIRIOS Resources Inc.
TSX VENTURE : SOI

SIRIOS Resources Inc.

February 28, 2008 10:34 ET

SIRIOS Hits 0.62%U308 in Rock Samples on OPINACA NORD

MONTREAL, QUEBEC--(Marketwire - Feb. 28, 2008) - SIRIOS RESOURCES INC. (TSX VENTURE:SOI) received rock samples assays from outcrops on its OPINACA NORD uranium property located 30 kilometers east of the Goldcorp Eleonore deposit, James Bay, Quebec, Canada. Those samples, taken last Fall on the property, were assayed at the laboratory of the Saskatchewan Research Council and graded up to 0.618 % U3O8, as well as 0.162%, 0.142%, 0.136% and 0.103% U3O8. Work completed up to now consisted mainly of large scale ground prospecting targeting uranium lake sediment anomaly clusters and follow-up work is planned to fully evaluate the size of the radioactive zones and to systematically investigate a 25 km-long uranium lake sediment anomalies trend.

From thirty-eight rock grab samples taken during last Fall reconnaissance prospecting campaign, 5 returned values higher than 0.10% U3O8, 7 had values between 0.03% and 0.10% U3O8 and 8 between 0.01 and 0.03% U3O8. Field work was completed by independent firm IOS Services Geoscientifiques Inc., Saguenay, Quebec.

The OPINACA NORD property is wholly owned by SIRIOS, it covers 300 sq. kilometers (576 claims) encompassing the Laguiche meta-sedimentary Basin. It is subject to an option agreement signed on May 2007 entitling DIOS EXPLORATION INC. (TSX VENTURE:DOS) to earn a 50% interest for exploration expenditures of 1,25 M$ over a 5-year period and yearly installments of 25,000 $ (ref.: 05/16/2007 Press Release). SIRIOS holds approximately 4% of the share capital of DIOS.

In 2007, DIOS and SIRIOS outlined three kilometric size radioactive outcrop areas on OPINACA NORD (ref.: 08/21/2007 Press Release). The NW anomaly returned 1,300 to 20,550 cps (radioactive counts per second) over 1,000 m by 300 m. The NE anomaly located 20 km due east of the NW one, is characterized by 1,000 to 8,500 cps over a minimum area of 500 m by 300 m. The SW anomaly, located about 3 km south of the NE one, showed 1,500 to 16,000 cps over 2,000 m by 300 m. All radioactive outcrop areas are underlain by anatexis granite or white pegmatitic granite injected along a regional east-west trending structural corridor.

This press release was prepared by Dominique Doucet, P. Eng., President, Qualified Person pursuant to National Instrument 43-101.

The TSX Venture has not reviewed and does not accept responsibility for the adequacy or accuracy of this release.

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