14 May 2007 ASX – DIO TSX - LMA Frog’s Leg drilling results exceed expectations 13m @ 11.36 grams of gold per tonne 16m @ 9.8 grams of gold per tonne 3m @ 31.94 grams of gold per tonne 9m @ 10.94 grams of gold per tonne The Frog’s Leg joint venture (La Mancha Resources 51%, Dioro Exploration NL 49%) is pleased to announce results from seven diamond drill holes from the Frog’s Leg gold deposit near Kalgoorlie in Western Australia. A $5 million, 20,000m resource definition drilling program commenced in early 2007 with the aim of upgrading the 771,000 ounce underground resource estimate. Two diamond drill rigs have been on site drilling the Mist and Fog zones at the Frog’s Leg gold deposit since the start of March and results have been close to or above expectation with several intersections of high-grade mineralization. Recent drill intersections from Frog’s Leg (>1.0g/t Au) Hole No. Northing Easting Depth Dip Azimuth Interval Intersection MEDD102 6595943 333659 475m -61 51 418-431m 13m @ 11.36 g/t Au Incls. 418-426m 8m @ 17.49 g/t Au 437-441m 4m @ 4.29 g/t Au MEDD103 Results awaited MEDD104 6595785 333717 549m -61 51 457-487m 30m @ 6.26 g/t Au Incls. 458-474m 16m @ 9.80 g/t Au MEDD105 6595821 333694 522m -61 51 450-476m 26m @ 3.76 g/t Au 478-479m 1m @ 34.10 g/t Au MEDD106 6595881 333712 438m -61 51 374-377m 3m @ 31.94 g/t Au 380-384m 4m @ 3.63 g/t Au MEDD107 6595843 333648 553m -61 50 476-489m 13m @ 8.14 g/t Au Incls. 476-485m 9m @ 10.94 g/t Au MEDD108 6595907 333686 455m -61 51 387-389m 2m @ 18.29 g/t Au MEDD109 6595917 333595 555m -61 49 478-485m 7m @ 7.00 g/t Au All samples are half NQ2 diamond drill core sampled on a one-metre basis. Samples were assayed at Genalysis Laboratories in Perth, using a 400g LeachWell cyanide leach, followed by solvent extraction and flame AAS. The average true widths are just over one-half of the intersection length. The locations of the intersection points are shown in the accompanying long section. Several broad zones of high grade mineralization have been intersected in the lower portion of the Mist and Fog orebodies. In particular MEDD102 intersected 13m @ 11.36 g/t Au and MEDD104 intersected 16m @ 9.80 g/t Au. Recent drilling has improved delineation of a shallow plunging high-grade zone of mineralization that remains open to the north. Additional drilling is planned to test this position. The joint venture is currently collating all recent diamond drilling results from October 2006 to May 2007 and upgrading the geological resource model with intention of updating the Frog’s Leg underground resource estimation of 771,000 released to the market in March 2007. Technical Note: The technical information contained in this news release was prepared under the supervision of Martin Bennett (MAIG), who is the Qualified Person under NI 43-101. Mr. Bennett is a full time employee of La Mancha Resources. He has sufficient experience which is relevant to the style of mineralisation and type of deposit to qualify as a Competent Person as defined in the 2004 Edition of the “Australasian Code of Exploration Results, Minerals Resources and Ore Reserves”. Mr. Bennett consents to the inclusion in the report of the matters based on his information in the form and context in which it appears. ABOUT DIORO EXPLORATION NL Dioro Exploration NL is a diversified ASX listed (ASX Code DIO) exploration company that has exposure to gold, nickel, uranium and copper through projects in located in Western Australia. The Company’s principal asset is the 49% interest in the Frog’s Leg project with a growing 771,000 ounce gold resource located 25km west of Kalgoorlie. On completion of the resource estimation a definitive feasibility study will be completed with a decision to mine pending. The joint venture has also purchased key mining equipment and has recently recruited an experienced mining operations team in readiness for the commencement of mining in the second half 2007. Dioro continues to advance exploration on other 100% owned projects such as Penfold (Au, Ni), with a resource inventory of 267,000 ounces, Ottrey (Au, Cu) which is planned to be drilled tested this quarter and Kunderong (Au, U) which is prospective for unconformity style uranium mineralization. ENDS For further information please contact: Rhod Grivas, Managing Director Dioro Exploration NL Ph: +61 8 9389 8799 [email protected] www.dioro.com.au
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