Orko Silver Corp.
TSX VENTURE : OK

Orko Silver Corp.

July 18, 2007 09:00 ET

Orko Silver Continues to Hit Martha Vein; Adds Third Drill Rig to Projects in Mexico

VANCOUVER, BRITISH COLUMBIA--(Marketwire - July 18, 2007) - Orko Silver Corp. (TSX VENTURE:OK) is pleased to announce that it has received further assay results from the current diamond drilling program on La Preciosa Project in Durango, Mexico.

The Martha Vein, first discovered in drill hole BP06-77, is proving to be a major structure. To illustrate the Martha Vein's emerging importance, the table below summarizes the intercepts to date.

Gary Cope, President of Orko, adds, "These latest assays continue to support the consistency of our overall excellent results from La Preciosa to date, and in particular the strength of the Martha vein. Furthermore, we have managed to add a third rig, which is now drilling on the San Juan property, adjacent to La Preciosa. We are looking forward to results from early targets there."



Martha Vein Intercepts

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

-------------------------------------------------------------------
BP06-77 434.89 445.50 10.61 9.97 0.339 249.5 269.8
-------------------------------------------------------------------
BP06-85 537.87 540.10 2.23 2.10 0.248 121.8 136.6
-------------------------------------------------------------------
BP06-87 592.87 594.73 1.86 1.75 0.363 116.4 138.2
-------------------------------------------------------------------
BP06-90 338.59 358.62 20.03 18.82 0.286 144.8 161.9
-------------------------------------------------------------------
BP07-92 425.96 439.93 13.97 12.10 0.212 127.9 140.6
-------------------------------------------------------------------
BP07-95 430.41 433.43 3.02 2.84 0.145 110.5 119.2
-------------------------------------------------------------------
BP07-96 341.85 347.47 5.62 5.42 0.181 187.5 198.4
-------------------------------------------------------------------
BP07-98 389.23 404.97 15.74 14.79 0.389 240.0 263.4
-------------------------------------------------------------------
BP07-99 475.34 478.56 3.22 3.03 0.300 269.8 287.8
-------------------------------------------------------------------
BP07-101 537.33 540.18 2.85 2.47 0.839 74.0 124.3
-------------------------------------------------------------------
BP07-102 442.16 456.17 14.68 13.79 0.320 376.5 395.7
-------------------------------------------------------------------
BP07-103 412.64 439.39 26.75 23.17 0.532 216.5 248.4
-------------------------------------------------------------------
BP07-104 479.50 481.47 1.97 1.71 0.545 149.3 182.0
-------------------------------------------------------------------


Third Drill Rig

Major Drilling S.A. de C.V. of Hermosillo, Sonora, Mexico, has delivered a third diamond drilling rig and crew to Orko Silver's San Juan project located immediately adjacent to Orko Silver's 100% owned La Preciosa project which saw drilling begin on March 21st, 2005 with the first rig and has since contracted a second rig and drilled in excess of 50,000 metres to date. Recently, Orko Silver succeeded in contracting a third rig which is currently operating on the San Juan property, a joint venture project with Silver Standard Resources Inc.

New Drill Results

New results from drilling on La Preciosa Project have been received for holes BP07-95, 96, 99, and 104.



BP07-95

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

-------------------------------------------------------------------
Abundancia 232.16 236.13 3.97 3.91 0.173 180.5 190.9
-------------------------------------------------------------------
Includes 233.54 236.13 2.59 2.55 0.207 222.8 235.2
-------------------------------------------------------------------

-------------------------------------------------------------------
Unnamed 394.54 395.18 0.38 0.34 0.215 698.7 711.6
-------------------------------------------------------------------

-------------------------------------------------------------------
Martha 427.94 434.54 6.60 6.20 0.194 98.4 110.1
-------------------------------------------------------------------
Includes 430.41 433.43 3.02 2.84 0.145 110.5 119.2
-------------------------------------------------------------------

-------------------------------------------------------------------


Hole BP07-95 was collared north of La Preciosa Ridge in "Mina La Preciosa Sector", east of holes BP05-10, 11 & 99 and west of holes BP07-92 & 90 on mine-section 15,600 N, azimuth 090, dip -45 degrees. Note: The Martha Vein intercept had poor core recovery in a leached area, possibly resulting in local removal of silver.



BP07-96

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

-------------------------------------------------------------------
Abundancia 63.39 74.40 11.01 10.84 0.065 57.8 61.8
-------------------------------------------------------------------
Includes 63.39 65.92 2.53 2.49 0.148 108.0 116.9
-------------------------------------------------------------------
Includes 63.39 64.70 1.31 1.29 0.216 139.4 152.4
-------------------------------------------------------------------

-------------------------------------------------------------------
Luz Elena 115.05 119.09 4.04 3.80 0.047 110.2 113.0
-------------------------------------------------------------------
Includes 117.05 119.09 2.04 1.92 0.047 159.1 162.0
-------------------------------------------------------------------
Includes 115.05 115.65 0.60 0.56 0.150 172.3 181.3
-------------------------------------------------------------------

-------------------------------------------------------------------
Martha 341.85 347.47 5.62 5.42 0.181 187.5 198.4
-------------------------------------------------------------------
Includes 341.85 346.08 4.23 4.09 0.217 232.3 245.3
-------------------------------------------------------------------

-------------------------------------------------------------------


Hole BP07-96 was collared north of La Preciosa Ridge in "Mina La Preciosa Sector", east of holes BP05-12, 13 and BP07-98, 102, 103 and 104 on mine-section 15,500 N, azimuth 090, dip -45 degrees. Abundancia vein is immediately below the paleo-surface at the base of the basaltic cover and is strongly leached. Martha Vein is strong and up-dip from the intercept in BP07-98.



BP07-99

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

----------------------------------------------------------------------
Unnamed 246.07 248.97 2.90 2.73 0.130 52.9 60.7
----------------------------------------------------------------------
Includes 246.57 246.83 0.26 0.24 0.150 92.0 101.0
----------------------------------------------------------------------
Includes 248.73 248.97 0.24 0.23 0.140 327.3 335.7
----------------------------------------------------------------------

----------------------------------------------------------------------
Abundancia 281.55 286.28 4.73 4.44 0.208 166.0 178.4
----------------------------------------------------------------------
Includes 283.13 286.28 3.15 2.96 0.217 178.3 191.4
----------------------------------------------------------------------
Includes 283.40 285.67 2.27 2.13 0.251 219.7 234.8
----------------------------------------------------------------------
Includes 283.40 284.79 1.39 1.31 0.252 228.5 243.6
----------------------------------------------------------------------

----------------------------------------------------------------------
Martha 475.34 478.56 3.22 3.03 0.300 269.8 287.8
----------------------------------------------------------------------
Includes 476.95 478.56 1.61 1.51 0.516 511.2 542.2
----------------------------------------------------------------------
Includes 478.17 478.56 0.39 0.37 0.585 1,170.3 1,205.4
----------------------------------------------------------------------

----------------------------------------------------------------------


Hole BP07-99 was collared north of La Preciosa Ridge in "Mina La Preciosa Sector", east of holes BP05-10 & 11 and west of holes BP07-95 & 92 on mine-section 15,600 N, azimuth 090, dip -45 degrees.



BP07-104

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

----------------------------------------------------------------------
La Gloria 53.30 55.88 2.58 2.23 0.025 90.6 92.1
----------------------------------------------------------------------
Includes 53.30 53.98 0.68 0.59 0.053 135.3 138.5
----------------------------------------------------------------------
Includes 55.57 55.88 0.31 0.27 0.020 289.9 291.1
----------------------------------------------------------------------

----------------------------------------------------------------------
Abundancia 92.57 96.94 4.37 4.11 0.174 318.2 328.6
----------------------------------------------------------------------
Includes 92.57 96.26 3.69 3.47 0.204 370.6 382.9
----------------------------------------------------------------------
Includes 92.57 95.33 2.76 2.59 0.261 448.4 464.1
----------------------------------------------------------------------

----------------------------------------------------------------------
Carmen 240.17 243.14 2.97 1.91 0.283 481.0 498.0
----------------------------------------------------------------------
Includes 240.43 242.83 2.40 1.54 0.331 571.3 591.1
----------------------------------------------------------------------
Includes 241.40 241.75 0.35 0.22 1.430 1,801.3 1,887.1
----------------------------------------------------------------------

----------------------------------------------------------------------
Unnamed 403.82 404.05 0.23 0.22 0.398 2,389.6 2,413.5
----------------------------------------------------------------------

----------------------------------------------------------------------
Martha 471.80 481.47 9.67 8.37 0.254 56.2 71.4
----------------------------------------------------------------------
Includes 479.50 481.47 1.97 1.71 0.545 149.3 182.0
----------------------------------------------------------------------
Includes 479.90 481.18 1.28 1.11 0.727 210.4 254.0
----------------------------------------------------------------------

----------------------------------------------------------------------


Hole BP07-104 was collared north of La Preciosa Ridge in "Mina La Preciosa Sector", east of holes BP05-12, 13 and west of hole BP07-102 on mine-section 15,500 N, azimuth 090, dip -45 degrees. It contains many silver-gold mineralized veinlets and several major veins. La Gloria vein is near the paleo-surface contact beneath the basaltic cover and is locally leached.

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

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

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

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

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

http://www.investorhub.ca/orkonews.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%.

About Orko Silver Corp.

Orko Silver Corp. is a professional exploration company with an increasing silver resource. Orko Silver's principal project, La Preciosa, located near the city of Durango, Mexico, is an advanced silver and gold project. The Company is currently drilling at La Preciosa using 2 rigs working 24 hours a day, 7 days a week. The deposit remains open in all directions and to depth. Two additional projects include the Santa Monica east of La Preciosa and the San Juan west of La Preciosa. All are undergoing exploration.

ON BEHALF OF THE BOARD OF DIRECTORS

Gary Cope, President

This News Release may contain forward-looking statements including but not limited to comments regarding the timing and content of upcoming work programs, geological interpretations, receipt of property titles, potential mineral recovery processes, etc. Forward-looking statements address future events and conditions and therefore involve inherent risks and uncertainties. Actual results may differ materially from those currently anticipated in such statements. Orko relies upon litigation protection for forward-looking statements.

Cautionary Note to U.S. Investors - The United States Securities and Exchange Commission permits U.S. Mining companies, in their filings with the SEC, to disclose only those mineral deposits that a company can economically and legally extract or produce. We use certain terms in this press release, such as "measured", "indicated", and "inferred" resources, which the SEC guidelines strictly prohibit U.S. registered companies from including in their filings with the SEC. U.S. Investors are urged to consider closely the disclosure in our Form 20-F, File No. 000-51923, which may be secured from us, or from the SEC's website at http://www.sec.gov/edgar.shtml.

The TSX Venture Exchange has not reviewed and does not accept responsibility for this news release.

Contact Information