DIOS 33 Carats Gold Project: Significant Hydrothermal Anomaly Uncovered Associated With a Gold Tonalite Target

MONTREAL, QUEBEC, CANADA--(Marketwire - May 17, 2011) -DIOS EXPLORATION (TSX VENTURE:DOS) is very pleased to report the discovery of a significant hydrothermal potassic anomaly in association with a GOLD TONALITE TARGET (gold porphyry potential) hosted within a volcanic rock nosefold on its wholly-owned 33 CARATS diamond-gold project, which project is located adjacent to the Eastmain gold mine deposit and the Renard advanced diamond project, Otish region, Quebec, Upper Eastmain river area, in very close proximity to the route des Otish planned pursuant to the Quebec Government Plan Nord.

In 2010, the Quebec government flew an airborne magnetic-spectrometric survey covering the surface area of the 33 CARATS property. During winter and spring 2011, DIOS' research team processed that data with the help of an independent specialized geophysicist: a significant first priority potassic anomaly of 3 by 1-2 kilometers was delineated and is coincidental with a gold tonalite target area previously defined by DIOS in folded volcanics. DIOS thus found one more clue to understand that puzzling area with gold potential. In addition, detailed structural interpretation with the help of the magnetic data defined a major east-west structural zone or fault, where naturally will be the focus of next summer field campaign in the amount of a few hundreds thousand dollars. Nosefolds and structures are very good traps for gold.

The 33 CARATS property is overlying part of the Eastmain greenstone belt, hosting the Eastmain gold mine (in operation in the nineties). Advanced glacial studies completed by DIOS over the years outlined a 15-20 km x 3-5 km well-structured gold north-east anomalous dispersal train. The glacial gold train is composed of 80 till samples including 13 samples (16%) over 0.25 grams gold per ton and 4 samples over 0.50 grams gold per ton including 0.519, 0.583, 1.165, 2.090 grams gold per ton (from heavy mineral concentrates). The head source of this gold dispersal train is pointing out towards the volcanic belt wrapping around a tonalite complex on DIOS ground. It shows a lot of similarities with the gold dispersal train recently discovered by DIOS on its wholly-owned AU33 West project located a few hundreds kilometres more to the west in the lower Eastmain River Area. DIOS is looking forward to develop the 33 CARATS GOLD PROJECT alone or through partnership.

The technical content of this press release was prepared by M.J. Girard, M.Sc., P.Geo, a Qualified Person pursuant to National Instrument 43-101.