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Message: San Anton Reports Progress at Cerro del Gallo
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June 17, 2008
San Anton Announces Cerro del Gallo Mineral Resource Update

Significant Increase in Tonnage and Contained Metal
TORONTO, ONTARIO--(Marketwire - June 17, 2008) - San Anton Resource Corporation (TSX:SNN) is pleased to announce an updated mineral resource estimate, including a significant increase in tonnes and contained metal for the Cerro del Gallo copper-gold-silver deposit at San Anton, Guanajuato State, central Mexico. The updated mineral resource estimate now contains 1.1 billion pounds of copper, 3.9 million ounces of gold, and 163 million ounces of silver in the Measured and Indicated Mineral Resources.

Highlights of the Cerro del Gallo mineral resource update include:

- 43% increase in the Measured and Indicated Mineral Resources tonnes to 461 Mt

- 28% increase in the Measured and Indicated Resources contained metal to 1,087 Mlbs Cu, 3.9 Moz Au, and 163 Moz Ag

- In addition to the Measured and Indicated Resources, there are 166 Mt of Inferred Resources containing 356 Mlbs Cu, 0.6 Moz Au, and 39 Moz Ag

The updated mineral resource estimate is based on 350 drill holes for a total of 94,403 metres completed since December 2004. This new data represents a significant increase in information since the last mineral resource estimate announced on 13 March 2007, which was based on a total of 57,592 metres and 232 holes. New information acquired during the last 18 months has assisted in improving the geological interpretation of the deposit which in turn has lead to a refinement of the 3-D model for mineral resource estimation.

John Cook, President & CEO, said that "The updated mineral resource reflects an increased level of geological understanding and confidence, and will provide a strong basis for the current and future studies and represents another step forward in the evaluation of the Cerro del Gallo copper-gold-silver deposit."

Geological Modelling

The Cerro del Gallo deposit was modelled as three broader geological domains based on the primary rock types and alteration, which was further sub-divided based on the predominant metal occurrence. The domains were defined from the drilling and surface mapping as shown in Figure 1 (Cerro del Gallo Geology and Mineral Resource Extent available at http://www.sanantonresourcecorp.com/... ). The central intrusive domain is based on surface mapping and drill hole logging. The gold domain is a gold-rich zone based on gold grades greater than a nominal 0.2 g/tAu that predominantly occurs within the hydrothermally altered ash-flow tuff sequence peripheral to the major intrusives, but also in part transects the major intrusives. The copper domain forms an outer copper-silver-rich zone also within the altered ash-flow tuff sequence and was based on gold equivalent grades nominally greater than 0.3 g/tAuEq. The mineralization appears to be constrained within the altered tuff sequence, with some apparent structural controls on the limits of the alteration. All major constraining faults were modelled to the north, south and west of the deposit, and a constraining shale contact along the eastern side of the deposit. The outer limit of the alteration domain appears to have been defined by these major constraining faults and or drilling, except in the south-eastern and north-western areas.

Mineral Resource Estimate

The significant amount of new drilling from both infill and step-out drill holes has allowed for the significant increase in the size and confidence of the mineral resource with an increase in the higher confidence Measured and Indicated Mineral Resources of 43% in tonnes and 28% in contained metal to now contain 1,087 Mlbs Cu, 3.9 Moz Au, and 163 Moz Ag. The Inferred Mineral Resources have increased by 48% in tonnes and 14% in contained metal to now contain 356 Mlbs Cu, 0.6 Moz Au, and 39 Moz Ag.

The majority of the Inferred Mineral Resources occur in the outer copper domain, and remain open to the north-west, south-east, and at depth. The mineral resource has only been reported for material above the 1,800 mRL, which is considered to be the maximum depth with reasonable prospects of eventual economic extraction with the prevailing metal prices.

The classification of the mineral resource estimate, reported with a 0.2g/t Au cut-off grade in the gold domain and 0.07% Cu cut-off grade in the copper and intrusive domains, is shown in Table 1. The classification of the mineral resource by geological domain is shown in Table 2.

 
                                    Table 1
                        Cerro del Gallo Mineral Resource

----------------------------------------------------------------------
Resource Category     Tonnes     Au    Ag     Cu     Au     Ag      Cu
                    millions    g/t   g/t      %    Moz    Moz    Mlbs
----------------------------------------------------------------------
Measured                 225   0.35    13   0.11    2.5     91     541
----------------------------------------------------------------------
Indicated                236   0.19    10   0.11    1.4     72     546
----------------------------------------------------------------------
Measured + Indicated     461   0.27    11   0.11    3.9    163   1,087
----------------------------------------------------------------------
Inferred                 166   0.11     7   0.10    0.6     39     356
----------------------------------------------------------------------
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