Orko Silver Corp fka OK

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Orko Silver Increases Resource Estimate by 86% to 73.1 Million Ounces Silver Equivalent

Monday October 1, 12:05 am ET

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Oct. 1, 2007) - Orko Silver Corp. (TSX VENTURE:OK - News) is pleased to report that an "independently verified" NI 43-101 compliant mineral resource estimate has been completed on its La Preciosa Project in Durango, Mexico. The study concludes that work to date on the property has outlined an estimated Inferred Resource of 10.36 million tonnes grading 0.328 g/t Au and 200.0 g/t Ag at a cut-off grade of 100 g/t for a Silver-Equivalent grade of 219.0 g/t.

Contained metal in the Inferred Resource equals 2,070 million grams Ag (66.6 million oz Silver) and 3.28 million grams Au (109,000 oz Gold) for a silver-equivalent 2,274 million grams Ag-Eq (73.1 million oz Silver Equivalent). Silver-equivalent values reported in this Resource Estimate are determined by adding the silver grade to 60 times the gold grade. Metallurgical recoveries and net smelter returns are assumed to be 100%.

Table of Comparative Change between Resource Estimate III (March 2007) and Resource Estimate IV (September 2007):

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