Ressources Minières Pro-Or Inc.

Ressources Minières Pro-Or Inc.

August 11, 2009 14:21 ET

Ressources Minieres Pro-Or Inc./Menarik 2008: Summary of Exploration Work and Results

MONTREAL, QUEBEC--(Marketwire - Aug. 11, 2009) - Ressources Minieres Pro-Or Inc. ("Pro-Or") (TSX VENTURE:POI) presents the results of the prospection and drilling campaign completed on its Menarik property in 2008. This work was done under the supervision of Mr. Yvan Bussieres, consultant engineer in geology. The twenty drill holes, totalling 6,069 meters, were aimed at targets located both within and oustside of the ultramafic complex. Within the ultramafics, the holes targeted chromite showings far from the resources previously evaluated, as well as nickel and palladium showings partly explored by previous drilling. The holes outside of the complex were planned to explore surface showings of gold and base metals that had not been tested yet by drilling.

The Hole MK-08-05 located near showing Cr-11, produced the most interesting results for chromite: it intersected a 28.2 -meter section grading 14.8% Cr2O3, including a rich section of 7.2 meters with 35.1% Cr2O3 and an excellent bulk chromium to iron ratio of 1.93. Further drilling will be necessary to define the orientation and potential extent of this zone.

The Hole MK-08-02 under showing Cr-6 also returned promising results: two wide chromite intersections, one of 25.8 meters bearing 4.1% Cr2O3, the other of 23.3 m with 4.9% Cr2O3. The similarity of the two sections leads the geologist to suspect a doubling of the same zone by a fold or a fault. Taking into account intersections observed in three holes drilled nearby in 2007, namely 10.6% Cr2O3 along 16.5 m, 15.4% Cr2O3 along 14.3 m and 7.6% Cr2O3 along 7.3 m, Mr. Bussieres feels confident that further drilling can lead to the delimitation of new chromite resources in this sector.

The total chromite resources previously identified on the property have been re-evaluated in 2008 by Mr. Bussieres according to the 43-101 norms using all data presently available: measured resources were evaluated at 4.1 million metric tons grading 7.9% Cr2O3 and indicated resources at 2.1 million tons with 7.2% Cr2O3. Amongst the other 2008 results of interest with respect to the potential extent of chromite resources at depth, one 2008 drill hole intersected a new zone 6.8 meters wide grading 9.2% Cr2O3 at a vertical depth of 440 meters, well beyond the depth at which identified resources have yet been evaluated.

Five drill holes were aimed towards an electro-magnetic target detected in the complex by the 1996 airborne survey. The first three holes drilled on this target in 2007 had intersected a promising zone of nickel-copper mineralization. The five 2008 drill holes and a down-hole EM survey confirmed its continuity. The main mineralized sections observed so far in the drill holes are given below:

- MK-07-76 0.7% Ni + 0.4% Cu over 0.35 m from 106.7 to 107.05 m
1.0% Ni + 0.4% Cu over 2.7 m from 125.7 to 128.4 m
- MK-07-77 2.15% Ni + 0.66% Cu over 0.55 m from 132.8 to 133.35 m
1.2% Cu over 1.3 m from 140.7 to 142.0 m
- MK-07-78 0.8% Ni + 0.6% Cu over 1.55 m from 191.35 to 192.9 m
- MK-08-06 1.9% Ni + 0.4% Cu over 4.5 m from 145.1 to 149.6 m
- MK-08-07 1.1% Ni + 0.3% Cu over 3.8 m from 80.7 to 84.5 m
- MK-08-08 0.6% Ni over 4.7 m from 75,0 to 79,7 m
- MK-08-09 1.6% Ni over 0.2 m. from 139,6 to 139,8 m
- MK-08-10 0.5% Ni + 0.3% Cu over 1.8 m from 348,5 to 350,3 m
1.5% Ni over 1,0 m from 397,3 to 398,3 m

Another down-hole EM survey is planned in this sector in 2009 to optimize the next drill program. Pro-Or is also considering the realization during the winter of a surface EM survey with deep penetration capability in order to detect potential Ni-Cu concentrations near the base of the ultramafic complex.

Four new drill holes were also aimed towards the nickel-copper deposit identified as Ni97 which is located in a secondary ultramafic body west of the main intrusion. Unfortunately, a fire that started in the drillers' camp near the end of the planned drill program destroyed an important portion of the core and samples taken from them.

Hole MK-07-96, first drilled in 2007, was extended in 2008 to pass 50 meters below a 3.2 m section with 11.9 g/t palladium and 0.9% Ni intersected by hole MK-07-59. The extension of MK-07-96 cut a 0,9 m section grading 1.2% Ni and 2.4 g/t Pd. This mineralization should be followed up concurrently with numerous other Ni-Cu sections observed in other holes in the vicinity.

Three holes were drilled to explore low resistivity zones detected by the 1996 airborne survey under Menarik Lake near the southern limit of the ultramafic complex. Rhyolite sections more than 10 meters were observed under each of these targets and were found geochemically enriched in zinc and copper. One of these sections also contained a 5.3m quartz vein, of which 2.4m graded 1.9 g/t gold. The southern bank of Menarik Lake will be prospected in August 2009 with the hope of observing these gold and base metals targets at the surface.

The last five holes of 2008 were aimed under surface showings of gold, copper, zinc and silver discovered by the prospection of 2006 and 2008. One of the holes was not completed because of the fire and did not reach the planned target; the core of another was lost in the fire. No mineralization similar to the surface showings was observed in the other three. An induced polarization survey, covering 30 line-kilometers will be done in August 2009 to detect and delineate these and other targets in this sector before further drilling.

The numerous mineralized sections observed in the drilled holes going through this ultramafic complex suggest a very favorable potential for the discovery of deposits of commercial interest for Ni-Cu, Cr, and possibly also for Pd and other platinum-group metals. The many other showings of gold and base metals discovered around the complex also indicate a favorable potential for these metals although the drilling has not yet demonstrated a significant continuity of these mineralizations, as they have for Cr and Ni-Cu.

All samples were analyzed by ALS-Chemex Laboratory. The samples were first submitted to a geochemical multi-element procedure involving the primary extraction by four strong acids and analysis by ICP spectrometry. Samples with higher contents of Ni and Cu were then submitted to a quantitative procedure similar to the preceding but optimized for the accuracy of higher grades; in 2008, primary extraction of these metals was done by fusion with sodium peroxyde rather than with acids. Samples with higher grades of Cr were all fused with peroxyde before ICP analysis. For Au, Pd and Pt, the assays were done by pyro-analysis of 30-gram aliquots finished by ICP.

This press release has been prepared by the direction of Pro-Or in collaboration with Mr. Yvan Bussieres, engineer in geology, a qualified person under 43-101, who has authorized its release.

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