DIOS EXPLORATION INC.
TSX VENTURE : DOS

DIOS EXPLORATION INC.

August 21, 2007 10:16 ET

Dios: Three Radioactive Areas Outlined by First Uranium Campaign on Opinaca Nord

MONTREAL, QUEBEC--(Marketwire - Aug. 21, 2007) - Dios exploration Inc. (TSX VENTURE:DOS)

A first reconnaissance campaign on DIOS-SIRIOS' Opinaca Nord project outlined three kilometric radioactive outcropping areas. The first one (NW anomaly) showed 1,300 to 20,550 counts per second (cps) over a minimum area of 1,000m by 300m. The second one (NE anomaly located 20km due east of the first one) is characterized by 1,000 to 8,500 cps over a minimum area of 500m by 300m. A third area (SW anomaly located about 3km south of the second one) showed 1,500 to 16,000 cps over a minimum area of 2,000m by 300m. One hundred and forty-one rock samples were collected during this campaign and are currently processed for uranium. All the radioactive outcropping areas are underlain by granite or pegmatitic granite injected along a regional east-west trending structural corridor. It should be noted that this campaign consisted mainly of reconnaissance work targeting the uranium lake sediment anomalies clusters and that follow-up work is planned to fully evaluate the size of these radioactive zones and to systematically investigate a 25km-long uranium lake sediment anomalies trend. A Rossing-type high tonnage low-grade uranium model may be considered in association with numerous anatexis granites occurring within paragneisses (metasediments) of the Laguiche Basin. It was the first exploration program on the Opinaca Nord Property since an option agreement was negotiated with Sirios Resources Inc. to acquire a 50% interest in the property for exploration expenditures and payments totaling 1,35 M$ (07-05-16 Press Release).

Two other areas associated with gold-arsenic lake sediment anomalies clusters are also currently being investigated for gold. The areas host favourable sulphide-bearing silicified biotite paragneiss and garnet-amphibole rocks.

Located about 30 kilometers east of the Goldcorp Eleonore gold deposit, the DIOS-SIRIOS' Opinaca Nord property is also located north of Sirios-Golden Valley's Shark gold property. The 300 sq. kilometer (576 claims) property encompasses the Laguiche sedimentary Basin.

The DIOS technical team considers that both uranium and gold potentials are good on the Opinaca Nord property. DIOS has 33 millions shares outstanding and is very well funded to carry out extensive exploration programs on its many projects.

This press release was prepared by M.-J. Girard, M.Sc. P.Geo., qualified person pursuant to National Instrument 43-101.

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

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