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Message: Headline: Orko Silver Hits 25.59 Metres Grading 222.3 g/t Silver-Equivalent on M

Headline: Orko Silver Hits 25.59 Metres Grading 222.3 g/t Silver-Equivalent on M

posted on Apr 28, 2008 05:06AM
Orko Silver Hits 25.59 Metres Grading 222.3 g/t Silver-Equivalent on Martha Vein
Symbol: OK

VANCOUVER, BRITISH COLUMBIA--(Marketwire - April 28, 2008) - Orko Silver Corp. (TSX VENTURE:OK) is pleased to announce that it has received further assay results from its on-going diamond drilling program at La Preciosa Project in Durango, Mexico.

Gary Cope, President of Orko, adds, \"The Martha Vein continues to yield excellent grades across exceptionally wide intercepts. The strike length of the Martha structure is growing to the south east and current drilling is focused towards that direction. We are currently drilling holes 236-240 and we now have 85-90 holes drilled that were not in the last resource estimate. This, along with the significant intercepts from yet unnamed veins gives me cause for great optimism about the Company's future.\"

BP07-169  --------------------------------------------------------------------------               From         To      Core     True      Au       Ag    Ag-Eq Vein       (metres)   (metres)   Length    Width    (g/t)    (g/t)    (g/t) --------------------------------------------------------------------------  -------------------------------------------------------------------------- Unnamed     219.19     219.82      0.63     0.59   1.489    513.9    603.2 --------------------------------------------------------------------------  -------------------------------------------------------------------------- Unnamed     226.70     228.14      1.44     1.35   1.363    242.1    323.9 --------------------------------------------------------------------------  -------------------------------------------------------------------------- Martha      249.94     276.43     26.49    25.59   0.306    204.0    222.3 --------------------------------------------------------------------------  Includes   251.16     263.95     12.79    12.35   0.342    343.3    363.7 --------------------------------------------------------------------------  Includes   262.30     262.87      0.57     0.55   1.846  1,748.3  1,859.1 --------------------------------------------------------------------------  


Hole BP07-169 is located east of La Preciosa Ridge on mine section 15,300 N, with a Martha intercept 100 metres south of hole BP06-75ext. It is oriented azimuth 090, dip -75 degrees. Martha Vein is a strong structure in andesite near the conglomerate contact.



BP07-168

--------------------------------------------------------------------------
From To Core True Au Ag Ag-Eq
Vein (metres) (metres) Length Width (g/t) (g/t) (g/t)
--------------------------------------------------------------------------

--------------------------------------------------------------------------
Unnamed 171.86 172.26 0.40 0.38 0.041 487.7 490.1
--------------------------------------------------------------------------

--------------------------------------------------------------------------
Unnamed 214.08 214.83 0.75 0.72 0.137 153.8 162.0
--------------------------------------------------------------------------

--------------------------------------------------------------------------
Unnamed 264.17 265.36 1.19 1.03 0.052 99.6 102.7
--------------------------------------------------------------------------

--------------------------------------------------------------------------
Martha 272.62 301.61 28.99 28.00 0.295 116.2 133.9
--------------------------------------------------------------------------
Includes 274.56 285.08 10.52 10.16 0.512 137.2 167.9
--------------------------------------------------------------------------
Includes 274.56 279.89 5.33 5.15 0.801 208.9 257.0
--------------------------------------------------------------------------
Includes 294.64 295.74 1.10 1.06 0.748 1,049.8 1,094.7
--------------------------------------------------------------------------



Hole BP07-168 is located east of La Preciosa Ridge on mine section 15,300 N, with a Martha intercept 100 metres west of hole BP08-169 and south of hole BP06-77. It is oriented azimuth 090, dip -75 degrees. Martha Vein is a strong structure in andesite and conglomerate as veins and stockworks.



BP07-154

--------------------------------------------------------------------------
From To Core True Au Ag Ag-Eq
Vein (metres) (metres) Length Width (g/t) (g/t) (g/t)
--------------------------------------------------------------------------

--------------------------------------------------------------------------
Unnamed 152.51 159.02 6.51 6.41 0.401 191.3 215.4
--------------------------------------------------------------------------
Includes 154.02 157.15 3.13 3.08 0.765 310.6 356.5
--------------------------------------------------------------------------
Includes 155.95 156.42 0.47 0.46 4.460 707.2 974.8
--------------------------------------------------------------------------

--------------------------------------------------------------------------
Unnamed 182.79 183.50 0.71 0.67 0.047 420.0 422.9
--------------------------------------------------------------------------

--------------------------------------------------------------------------
Martha 444.88 453.96 9.08 8.94 0.144 33.8 42.5
--------------------------------------------------------------------------
Includes 452.38 453.96 1.58 1.56 0.101 91.4 97.5
--------------------------------------------------------------------------
Includes 453.27 453.58 0.31 0.31 0.175 283.8 294.3
--------------------------------------------------------------------------



Hole BP07-154 is located east of La Preciosa Ridge on mine section 14,800 N, 100 metres east of BP06-67ext. It is oriented azimuth 000, dip -90 degrees. Of particular significance is an unnamed flat-lying vein which is hosted in andesite. This new vein, yet to be named, makes grade and thickness in this hole at 6.41 metres true width grading gold 0.401 g/t and silver 191.3 g/t for a silver-equivalent of 215.4 g/t. Martha is a vein and veinlets structure near the conglomerate/schist contact. Base metals are elevated in Martha at Zn 0.72 % and Pb 0.37 %.



BP07-151

--------------------------------------------------------------------------
From To Core True Au Ag Ag-Eq
Vein (metres) (metres) Length Width (g/t) (g/t) (g/t)
--------------------------------------------------------------------------

--------------------------------------------------------------------------
Luz Elena 58.22 62.18 3.96 3.72 0.151 73.0 82.1
--------------------------------------------------------------------------
Includes 58.22 59.33 1.11 1.04 0.072 92.9 97.2
--------------------------------------------------------------------------
Includes 59.13 59.33 0.20 0.19 0.126 161.8 169.4
--------------------------------------------------------------------------

--------------------------------------------------------------------------
Unnamed 170.57 177.06 6.49 6.10 0.057 145.4 148.8
--------------------------------------------------------------------------
Includes 170.57 173.84 3.27 3.07 0.073 250.3 254.7
--------------------------------------------------------------------------
Includes 171.97 172.17 0.20 0.19 0.131 629.7 637.6
--------------------------------------------------------------------------

--------------------------------------------------------------------------
Unnamed 313.99 315.06 1.07 0.93 0.187 138.3 149.5
--------------------------------------------------------------------------
Includes 314.39 314.65 0.26 0.23 0.025 351.4 352.9
--------------------------------------------------------------------------

--------------------------------------------------------------------------
Martha 442.48 444.53 2.05 1.93 0.157 47.3 56.7
--------------------------------------------------------------------------
Includes 442.79 443.56 0.77 0.72 0.282 115.1 132.0
--------------------------------------------------------------------------
Includes 442.79 443.04 0.25 0.23 0.602 213.4 249.5
--------------------------------------------------------------------------

--------------------------------------------------------------------------
Unnamed 482.13 483.49 1.36 1.28 0.240 156.2 170.6
--------------------------------------------------------------------------



Hole BP07-151 is located east of La Preciosa Ridge on mine section 14,900 N, drilled from the same pad as BP06-70ext and BP07-153. It is oriented azimuth 090, dip -75 degrees. Martha vein in this location is a weak structure in conglomerates and does not make grade. Base metal values are higher in the lower portion of the hole.

Of particular note is the emergence of a structure below Luz Elena vein and above Martha vein. This new vein, yet to be named, makes grade and thickness in this hole at 6.10 metres true width grading gold 0.057 g/t and silver 145.4 g/t for a silver-equivalent of 148.8 g/t. The central core of this vein is 3.07 metres true width grading gold 0.073 g/t and silver 250.3 g/t, for a silver-equivalent of 254.7 g/t.



BP07-150A

--------------------------------------------------------------------------
From To Core True Au Ag Ag-Eq
Vein (metres) (metres) Length Width (g/t) (g/t) (g/t)
--------------------------------------------------------------------------

--------------------------------------------------------------------------
Martha 316.38 323.28 6.90 5.98 0.181 119.5 130.4
--------------------------------------------------------------------------
Includes 317.19 322.16 4.97 4.30 0.233 148.5 162.5
--------------------------------------------------------------------------
Includes 318.98 319.34 0.36 0.31 0.425 732.8 759.9
--------------------------------------------------------------------------

--------------------------------------------------------------------------
Unnamed 361.48 363.14 1.66 1.63 0.072 164.3 168.6
--------------------------------------------------------------------------
Includes 362.08 363.14 1.06 1.04 0.063 241.3 245.1
--------------------------------------------------------------------------
Includes 362.34 362.54 0.20 0.20 0.079 439.4 444.1
--------------------------------------------------------------------------



Hole BP07-150A is located east of La Preciosa Ridge on mine section 14,800 N, 100 metres south of hole BP07-143. It is oriented azimuth 090, dip -60 degrees. Martha vein is a strong structure in andesite. The lower vein is hosted in schist and has higher base metals.

A complete table of drill results is available at the link below:

http://www.orkosilver.com/i/pdf/drillresults.pdf

A detailed drill plan map is available at the link below:

http://www.orkosilver.com/i/pdf/drillplanmap.pdf

A printer friendly PDF format of this news release is available at the link below:

http://www.investorhub.ca/orkonews04282008.pdf

Ben Whiting, P.Geo., is the Qualified Person and takes responsibility for the technical disclosure in this news release. Full details of the Company's sampling protocols and QA/QC program can be located at our website at the link below:

http://www.orkosilver.com/s/QAQC.asp

Silver-equivalent for the purposes of this drilling program is defined as silver grade plus 60 times gold grade. Metallurgical recoveries and net smelter returns are assumed to be 100%.

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