Orex Exploration Issues Final Assay Drill Results from the Phase 2 Program at Goldboro

OREX EXPLORATION INC. (TSX VENTURE:OX)(FRANKFURT:O5D) ("Orex" or the "Company")
is pleased to provide shareholders with additional results from the Phase 2D
diamond drilling campaigns at the Company's wholly-owned Goldboro Gold Property
(the "Property") in Nova Scotia, where the project operator Osisko Mining
Corporation ("Osisko") is currently in the first year of an option agreement to
eventually earn a 50% direct property interest (refer below to the Osisko-Orex
Option Agreement terms). A total of 59 drill holes / 12,995.5 meters were
completed during the winter 2010 program in three campaigns (Phases 2D, 2E and
2F) covering the Ramp Area, West Goldbrook and Dolliver Mountain segments of the
gold mineralized Boston-Richardson Anticlinal Structure ("BRAS"). All gold
assays have now been received. Significant gold intervals from the remaining
gold assays from Phase 2D are as follows: 




----------------------------------------------------------------------------
                                             CORE         GOLD         GOLD 
                                           LENGTH        GRADE        GRADE 
HOLE #           FROM(m)        TO(m)          (m)        (g/t) (60 g/t cut)
----------------------------------------------------------------------------
Phase 2D                                                                    
----------------------------------------------------------------------------
OSK-10-34        181.08        184.0         2.92        15.56        15.56 
OSK-10-35          94.7         95.2          0.5     154.50(i)       60.00 
                  161.5        178.1         16.6         0.59         0.59 
OSK-10-46         22.80        33.00        10.20         0.92         0.92 
including         32.20        33.00         0.80        10.05        10.05 
                  89.95       111.00        21.05         9.32         3.62 
including         89.95        90.45         0.50       9.55(i)        9.55 
and              103.00       104.00         1.00       180.00        60.00 
OSK-10-47          6.20        18.50        12.30         0.89         0.89 
including         14.00        15.50         1.50         5.06         5.06 
OSK-10-48        135.50       136.00         0.50      49.80(i)       49.80 
OSK-10-49         61.00        99.00        38.00         0.61         0.61 
including         88.10        88.60         0.50      32.80(i)       32.80 
----------------------------------------------------------------------------
(i) Metallic Screen Assay / Visible Gold                                    



Mr. Alex S. Horvath, P. Eng., Senior Technical Advisor for Orex, stated, "All
gold intervals from the 2010 drilling are being reviewed and samples selected
for check assays using the Fire-Assay Method and/or the Total Metallic Screen
Method to produce the most reliable sample grades and validate intersections.
The multiple and Total Metallic Screen determinations yield average grades for
samples that demonstrate better continuity across mineralized intersections and
overall increased average gold grades, as was the case in the 2005 and 2008
drilling campaigns at Goldboro." 


The Goldboro Phase 2D, 2E and 2F diamond drilling program

The Phase 2D drilling (25 holes / 4,894 meters) tested the West Goldbrook area
over a 350-meter strike length along the BRAS between 25 meters and 200 meters
vertical depth, and also replaces non-compliant historic drill results with
compliant assay data, as well as extending the mineralization down-dip of known
intersections and westwards towards the Dolliver Mountain area.


The Phase 2E drilling (16 holes / 3,371.5 meters) tested the Dolliver Mountain
area within the projected historic mineralization over a 200-meter strike length
continuing westward from West Goldbrook and a 500-meter strike length at the
western end near the historic Dolliver Mountain mine. A 600-meter gap in
drilling between the east and west ends remains to be drill tested. Drilling in
this campaign is deemed exploratory, since the area has never been drilled by
Orex nor worked on since the early 1900's. 


The Phase 2F drilling (18 holes / 4,730 meters) generally replaced a number of
incomplete and/or non-compliant historic drill results with compliant assay data
primarily in the deeper portions of the Ramp Area and extending westward towards
West Goldbrook. The target area covers a 250-meter strike length of the main
gold mineralization along the BRAS between 75 meters and 250 meters vertical
depth, immediately below the current Mineral Resources area. 


QA/QC Sampling and Analytical Protocols

Please refer to the Company's news release dated April 29, 2010, detailing QA/QC
sampling and analytical protocols. After review of initial assay results and
reconciliation with the logged zones of mineralization, specific samples will be
identified for re-assaying by the Total Metallic Screen method while other
samples will have a second pulp prepared from the coarse reject and re-assayed
by the AAS Method. Multiple assay determinations provide a more accurate
determination of gold content in the samples. 


The reported intervals in all three tables represent weighted average intervals
of no less than 10 meters (for bulk mining scenarios) of individual assays
grading above a 0.35 g/t cut-off. In some instances, weighted intervals of less
than 10 meters are reported to highlight significantly higher grade
intersections. The weighted average grades are also reported in the adjacent
column applying a 60 g/t gold maximum value to samples exceeding 60 g/t gold in
any interval. The addition of an assay grade cutting factor at the exploration
stage is traditionally used to reduce the effect of higher gold grades. Assay
grades at Goldboro were cut to 66 g/t gold for the August-September 2009 Mineral
Resources estimates, with the number being derived from the geostatistical
analysis of all assay grades to that time - refer to the National Instrument
43-101 Technical Report titled The 2009 Mineral Resource Estimate for the
Goldboro Property (Guysborough County, Nova Scotia), by D. Gervais, B.Sc.,
P.Geo., A. Carrier, M.Sc., P.Geo., and K. Brousseau, B. Sc., Eng., of InnovExplo
- Consulting Firm, Val-d'Or (Quebec), dated September 15, 2009, available under
Orex Exploration Inc., on SEDAR at www.sedar.com. 


The drill holes were angled from each side (i.e., north and south) of the
approximately 100-metre wide BRAS. Each drill hole was terminated near the BRAS
hinge to prevent down-dip drilling on the opposing limb, thus each hole
penetrated only 50% of the total width of the deformation zone (i.e., one limb
of the BRAS). Gold is linked to dilatant zones in shears (such as the "123",
"456" and "78" Zones) combining quartz veins, veinlets and stockworks, the
geometry of which are influenced by the highly altered host rocks. These high
grade zones host millimetre to centimetre sized gold nuggets in both the quartz
veins and host rocks. Assays vary from higher gold grades (in excess of 10 g/t,
commonly in the hundreds of g/t) when nuggets are encountered to lower grades
(under 2 g/t) when host rocks are altered with silica, chlorite and sulphides.
Correlation of the higher grade individual mineralized shear zones is still
pending. 


The Goldboro Gold Property

The current Mineral Resource Estimates ("MRE") for Goldboro at a cut-off gold
grade of 1.5 g/t are 2.711 million tonnes grading 4.56 g/t gold, totalling
397,200 gold ounces in the Measured + Indicated Resources categories, with an
additional 3.438 million tonnes grading 3.67 g/t gold totalling 405,926 gold
ounces in the Inferred Resource category. Assuming a lower 0.5 g/t cut-off, the
Measured + Indicated Resources are 7.933 million tonnes grading 2.13 g/t gold
totalling 542,000 gold ounces, with additional Inferred Resources of 10.389
million tonnes grading 1.78 g/t gold totalling 594,121 gold ounces (refer to
Orex's news release dated August 4, 2009, and the NI 43-101 Technical Report
posted on SEDAR at www.sedar.com). 


Option on Goldboro Gold Property Granted to Osisko Mining Corporation

In order to acquire a 50% undivided interest in the Goldboro Gold Property on or
before September 29, 2013 (the Initial Option), Osisko shall incur exploration
and development expenditures in the amount of at least $1,500,000 on or before
September 29, 2010; in the aggregate amount of at least $3,500,000 on or before
September 29, 2011; and in the aggregate amount of at least $8,000,000 over the
following two years, that is, on or before September 29, 2013. Osisko may, at
its sole discretion, accelerate and apply exploration and development
expenditures to future years' expenditures and, accordingly, the Initial Option
may be exercised sooner. Osisko shall solely fund a prefeasibility study to earn
an aggregate 60% interest (that is, an additional 10% interest) in the Property
on or before September 29, 2015 (the Additional Option).


About Orex Exploration Inc. 

Orex Exploration Inc. is a Canadian-based junior resource and exploration
company trading under the symbol OX on the TSX Venture Exchange and O5D on the
Frankfurt Stock Exchange. The Company holds a 100% interest in the Goldboro Gold
Project in Nova Scotia. You are invited to browse the Company's website at
www.orexexploration.ca.


The technical information contained in this news release has been prepared by
Mr. Alex Horvath, B.A.Sc., P. Eng., of A. S. Horvath Engineering Inc. (Ottawa,
Ontario), Technical Advisor to Orex, and Mr. Jean Lafleur, M.Sc., P. Geo.
(Laval, Quebec), Manager of the Goldboro Project for Osisko Mining Corporation.
Both individuals are Qualified Persons under National Instrument 43-101
regulations.
Orex Exploration Inc. (TSXV:OX)
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