June 13, 2007 12:41 ET

Detailed Systematic Geochemical Survey Undertaken by DIOS for Uranium Exploration on HOTISH

MONTREAL, QUEBEC, CANADA--(Marketwire - June 13, 2007) - An helicopter borne survey contract was negotiated by DIOS EXPLORATION INC. (TSX VENTURE:DOS) to undertake a lake bottom sediment sampling program for uranium exploration on its large HOTISH property, Otish mountains area, Quebec, to collect some 800 samples. This survey started over the week-end. Analytical results are expected for the end of the summer, to enable a follow-up field campaign in early Fall.

The HOTISH property comprises three main blocks, the HOTISH East block, directly adjacent to the Strateco property, the HOTISH main block, located on the western shallow edge of the Otish sedimentary basin, located directly west of a large CAMECO property, and the southern Papaskwasati block, located at the northeastern end of the Papaskwasati sub-basin. Research work through government files have shown the occurrence of one uranium lake anomaly on the HOTISH East Block and three aligned clusters of lake bottom sediments uranium anomalies on the HOTISH main Block, reaching up to 147 ppm U, as previously reported this spring from historical Uranerz survey data. The Papaskwasati south Block (a continental environment with uranium potential) was never sampled for lake sediments and will also be covered in the scope of the current survey as well as enlarged parts of the HOTISH property. Analytical techniques have evolved over the years and the DIOS' team believes in systematic detailed research work to evaluate a property.

A detailed airborne radiometric survey (200 m spacing) is also planned, more specifically on the HOTISH east Block, where a uranium lake anomaly is reported, and on the HOTISH main Block. This is where Uranerz conducted a very widely spaced radiometric survey (2 km) in the mid 1970's and, following an irregular pattern, delineated several radiometric anomalies on the DIOS' property. Ongoing ground radiometric prospecting in the scope of the current field campaign, will help the airborne survey planning.

This press release was prepared by Marie-Jose Girard, M.Sc. Geo., Qualified Person under NI 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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