December 30, 2008 09:00 ET

DIOS Exploration Inc.: UPINOR Diamond Drilling Program Results

MONTREAL, QUEBEC--(Marketwire - Dec. 30, 2008) - DIOS EXPLORATION (TSX VENTURE:DOS) announces the results of the 2008 summer diamond drilling program on the UPINOR uranium property, James Bay, Quebec. A cumulative core length totalling 897 meters consisting of 893 samples returned uranium grades up to 200 ppm (0.025% uranium oxide) on close to four-meter intercepts.

The twelve-hole helicopter-borne drilling program totalled 1,369 meters and was completed along a 3 km-strike length over the A1 zone. An extensive radiometric anomaly characterizes this zone as well as numerous U3O8 outcrop grades ranging from 0,05% to 0,8% and more, that is over 2% uranium oxide (see 08-08-10, 08-09-18 and 08/06/05 press releases). This A 1 anomaly is shown on DIOS website: http://www.diosexplo.com/pdfs/Carte_resultats_2007-2008.pdf The preliminary drilling program report dated December 23, just received by DIOS, does not confirm the continuity of high grade values at depth of the significant uranium surface occurrences of the A1 zone. This is possibly caused by an erratic distribution of the uraninite mineral, easily located with the use of spectrometers on surface but rather difficult to intersect through a drill hole. However, there is no or almost no superficial enrichment, which could have at least explain the surface high grade occurrences.

The half-core one meter samples were collected and prepared by IOS Services Geoscientifiques Inc. of Saguenay, Quebec. They were assayed at the Saskatchewan Research Council laboratory with partial digest(i). Industry-standard quality controls were applied, including blank, standard and duplicate inserts in the sample series. Furthermore, close to one hundred divergent samples from the same drill hole, which returned higher uranium grade than the published ones from total digest analysis(ii) were submitted for re-assaying in a second laboratory for double checking.

Prospecting results from other anomalies carried out during fall 2008 are pending.

The UPINOR property is owned 50%-50% in partnership with Sirios Resources (TSX VEBNTURE:SOI).

(i)Trace elements analysis by inductively coupled plasma with atomic emission spectroscopy (ICP-AES) following aqua regia partial digest.

(ii) Major and trace elements analysis by inductively coupled plasma with mass spectroscopy (ICP-MS) following multi-acid total leach.

This press release was prepared by MJ Girard, M.Sc., Geo, President of DIOS, Qualified Person.

A map is available at the following address: http://media3.marketwire.com/docs/dios_map_1230.pdf

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

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