ESO Uranium Corp.& Hathor Exploration Limited

ESO Drills Radioactive Intervals in Eight Drill Holes Testing Radon Anomalies on The Carswell Project Near the former Cluff Lake Mine, West Athabasca Basin, Saskatchewan

    Vancouver, Canada (ots/PRNewswire) - ESO Uranium Corporation (TSX-V: ESO), the Company, announces with Hathor  Exploration Limited (TSX-V: HAT) that 21 holes have been completed in the  current drill program being operated under the new joint venture between  the Companies. Two drill holes have intersected radioactive intervals in the area East of Bridle Lake, close to a percussion hole drilled by Mokta ( an Areva predecessor company) that reported 0.11% (equivalent) uranium  oxide over 1.5 meters at a shallow, 41 meters depth.

    6 holes, of a further 7 holes, have intersected radioactive intervals  in an area of a radon anomaly 1.5 kms east of Bridle Lake. The best  interval thickness was in the second group of drill holes and was  approximately 8 meters wide with average gamma probe results comparable to  the level encountered in the two holes close to the Mokta hole discussed  above. These drill intersections are all located on a claim adjoining the  Cluff Lake mining lease of Areva.

    The first two holes were designed to test possible extensions of mineralization indicated by the earlier Mokta Bridle Lake drilling, in an  area that had been identified by prospecting and radon surveys. The second  segment of the current drill program is testing an area with radon  anomalies, described in assessment reports by Mokta, which is over 300  meters long across the main direction of ice movement during the last  glacial period. According to available records, Mokta did not drill test  these anomalies.

    The widest radioactive intersection is in drill hole BR-18 in the eastern radon anomaly and has a width of approximately 8 meters with an  approximate average of 3500 counts per sec (cps). This width may not be a  true width but the bottom of the intersection terminates against a fault  structure which opens the possibility of a larger total original width of  mineralization. Below the fault the radioactivity drops immediately to  background levels of about 50 cps.

    A higher level of radioactivity was reported in the probe chart of drill hole BR-18 at 41 meters hole depth. This interval was about 10,300  cps over an interval of 15 cms width. The radioactive intercepts in 5 holes  contiguous with BR-18, BR-15 through BR-19 and BR-21, were in the 10 to 15  mm width range with probe values in the range of 1750 to 3500 cps at depths  of 80 to 110 meters down hole. The gamma probe used in the drill holes has  not been calibrated sufficiently to allow an estimate of grade at this time.

    The radioactive intersections have been identified both with a hand  held scintillometer check of drill core and by probing the drill holes with  a Mt Sopris total counts gamma probe. The rocks containing the  radioactivity have a characteristic strong red haematization of feldspars  in a coarse-grained, sub-pegmatitic phase of basement rocks. These results  encourage further drilling of the radon anomaly area and deeper testing  beneath drill holes with significant alteration. The samples have been  split and forwarded to Loring Laboratories in Calgary to be assayed for  uranium and gold.

    The Carswell Project includes mineral tenure that adjoins the former  producer, Cluff Lake Mines, and covers more than 67,000 acres (27,000  hectares) of prospective uranium exploration lands. Cluff Lake Mines  produced more than 60 million pounds of uranium oxide during the period  1980 to 2002. More than 8,000 ounces of gold were produced in the last 3-4  years of the mining operation, before decommissioning and achieving ISO  14001 environmental classification. The Cluff Lake mineralization, with an  average grade in the order of 0.85% (17 lbs per ton) uranium oxide, was  much shallower than that of most of the other Athabasca Basin mines and was  mined mainly by a number of small open pit mines and a few shallow  underground mines.

    The Carswell Structure is considered by many geologists to be an astrobleme impact site. The comet or meteorite that crashed into this part  of the Athabasca sedimentary basin is believed to have punched right  through the sedimentary rocks and, on the rebound of the rocks after the  impact, the basement rocks beneath the sediments were lifted up to the  present day surface. This very energetic process is similar to what can be  observed at a smaller scale when a stone is thrown into a mud puddle and  the mud splashes upwards after the initial impact of the stone.

    Towards the rim of the Carswell impact site, the sand stone was also  displaced upwards and outwards and in some areas the original basement  rocks can overlie sandstones of the younger Athabasca Basin formations. It  is this displacement that positioned the basement contact type  mineralization and its roots close to the present day surface. The target  environment being explored would be similar to the root zone of a typical  Athabasca Basin uranium deposit such as found in the nearby Shea Creek type  mineralization.

    For reference, the current spot price quoted by for uranium  oxide is US$90 per pound of U3O8; an assay reported as 1.0% of U3O8 is  equal to 20 pounds of uranium oxide per short ton - the conversion of  percent metal or metal oxide from percent to pounds per short ton is done  by multiplying the %  value by 20.

    On behalf of the Board of Directors of ESO Uranium Corp.

    "Ben Ainsworth"


    Vice President, Exploration

    Please refer to the ESO Uranium website for further and updated information.

    The Toronto Venture Exchange has not reviewed nor accepted responsibility for the adequacy or accuracy of the contents of this news  release which has been prepared by management. Statements contained in this  news release that are not historical facts are forward looking statements  as that term is defined in the private securities litigation reform act of  1995. Such forward looking statements are subject to risks and  uncertainties which could cause actual results to differ materially from  estimated results. Such risks and uncertainties are detailed in the  Company's filing with the Securities and Exchange Commission.

    Trading Symbol TSX-V - ESO

    Frankfurt - E2G

ots Originaltext: ESO Uranium Corp.& Hathor Exploration Limited
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For further information: For corporate communications please contact:
Tom Corcoran or Bob Meister, ESO Uranium Corp., Vancouver, BC, Phone:
+1-(604)-629-0293, Toll Free: 1-866-629-0293, Email:

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