MONTREAL, QUEBEC, CANADA--(Marketwire - Jan. 27, 2010) - OREXEXPLORATION INC. (TSX VENTURE:OX)(FRANKFURT:O5D) is pleased to announcethe start of the 2010 exploration campaign at the Company'swholly-owned Goldboro Gold Property, where Osisko Mining Corporationhas begun the winter 2010 diamond drilling program.

Osisko has advised Orex of the start of the 2010 drilling with thefirst of a three-part campaign. The 6,375 m / 25 holes Phase 2Fdrilling began last week with two drills, and this campaign is set toreplace incomplete and/or non-compliant historic drill results withcompliant data primarily in the Ramp Area and extending westwardtowards West Goldbrook. The historic drill results include drill holesthat were not sampled in their entirety and others sampled on longintervals. While assay results are accurate for the sampling of longerintervals, the sampling may not have been representative.

Two other campaigns are planned to follow totalling 8,750 m in 49holes. The Phase 2D and 2E drilling will continue westward along theremaining 1.7 km segment of the Boston Richardson Deformation Zone fromthe Ramp through West Goldbrook to Dolliver Mountain. Osisko isbudgeting $2.8 million for the Phases 2D, 2E and 2F drilling and aregional compilation and Goldboro reconnaissance program.

Mark Billings, President and CEO of Orex, commented, "I am pleasedthat Osisko has begun the final stages of our Phase 2 drillingcampaign. Once all Phases are completed, we will have 43-101-compliantdata for the entire 2.5 km strike length of our Goldboro Property. ThePhase 2F results will provide useful validation data and an enhancedinterpretation of the gold mineralization at Goldboro. We at Orex lookforward to working with our partner Osisko in advancing the developmentof this Property."

The Goldboro Gold Property

The current Mineral Resource Estimates ("MRE") for Goldboro at acut-off gold grade of 1.5 g/t are 2.711 million tonnes grading 4.56 g/tgold, totalling 397,200 gold ounces in the Measured+Indicated Resourcescategories, with an additional 3.438 million tonnes grading 3.67 g/tgold totalling 405,926 gold ounces in the Inferred Resource category.Assuming a lower 0.5 g/t cut-off, the Measured+Indicated Resources are7.933 million tonnes grading 2.13 g/t gold totalling 542,000 goldounces, with additional Inferred Resources of 10.389 million tonnesgrading 1.78 g/t gold totalling 594,121 gold ounces (refer to Orex'snews release dated August 4, 2009, and the NI 43-101 Technical Reportposted on SEDAR at www.sedar.com).

The MRE were modeled by extending the interpreted gold zones 825malong strike to the east and 500m to the west from the Company's 2006NI 43-101 mineral resources calculated to a -520m vertical depth fromsurface over the same 1.5km strike length of the Boston-RichardsonDeformation Zone. It was estimated that 97% of the MRE are locatedwithin the upper 350m from surface. The MRE are significantly higherand of better quality in terms of grade over the 2006 estimates and thesame 0.5 g/t gold cut-off grade and 1.5km distance. At a 0.5 g/t goldcut-off, the total Measured and Indicated resources grade 2.13 g/tgold, an 88% increase from 2006 grade estimates, with an additionalInferred resource grading 1.78 g/t gold, a 182% increase from 2006grade estimates.

Option on Goldboro Gold Property Granted to Osisko Mining Corporation

In order to acquire a 50% undivided interest in the Goldboro GoldProperty on or before September 29, 2013 (the Initial Option), Osiskoshall 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 applyexploration and development expenditures to future years' expendituresand, accordingly, the Initial Option may be exercised sooner.

Osisko shall solely fund a prefeasibility study to earn an aggregate60% interest (that is, an additional 10% interest) in the Property onor before September 29, 2015 (the Additional Option).

About Orex Exploration Inc.

Orex Exploration Inc. is a Canadian-based junior resource andexploration company trading under the symbol OX on the TSX VentureExchange and O5D on the Frankfurt Stock Exchange. The Company holds a100% interest in the Goldboro Gold Project in Nova Scotia. You areinvited to browse the Company website at www.orexexploration.ca.

The technical information contained in this news release has beenprepared by Mr. Alex Horvath, B.A.Sc., P. Eng., of A. S. HorvathEngineering Inc. (Ottawa, Ontario), Technical Advisor to Orex andQualified Person under National Instrument 43-101 regulations.

Neither the TSX Venture Exchange nor its Regulation ServicesProvider (as that term is defined in the policies of the TSX VentureExchange) accepts responsibility for the adequacy or accuracy of thisrelease.

FOR FURTHER INFORMATION PLEASE CONTACT:

Orex Exploration Inc.
Mark Billings
President & CEO
514-296-1641

[email protected]

Paradox Public Relations
1-866-460-0408
[email protected]