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Press release from Marketwire

Duvay Gold Project Mini Bulk Sample Update and Drill Results

Monday, November 21, 2011

Duvay Gold Project Mini Bulk Sample Update and Drill Results09:45 EST Monday, November 21, 2011VANCOUVER, BRITISH COLUMBIA--(Marketwire - Nov. 21, 2011) - Tres-Or Resources Ltd. ("Tres-Or") (TSX VENTURE:TRS) and partner Aurizon Mines Ltd. ("Aurizon") (TSX:ARZ)(NYSE Amex:AZK) are pleased to provide an update on field operations at the Duvay Gold Project ("Duvay"), located in the Abitibi Greenstone Belt approximately 17 kilometres northeast of Amos, in Duverny township, Quebec. Under the Option Agreement, Aurizon can earn 50% interest in Duvay Gold Project by making cash payments of $1,500,000 and completing $6,500,000 work, of which $2,500,000 million is a firm commitment (see news release dated September 27, 2011 for full details). Tres-Or is the project Operator.Tres-Or's current field operations at Duvay are centered around a mini-bulk sampling program, and drilling. Processing of the first two of the mini-bulk samples has been completed at Tres-Or's heavy mineral concentration facility on site. These two samples weighed 10 tonnes apiece, and were crushed to pass through a 0.85 mm screen before being passed across concentrating tables to yield heavy mineral concentrates, which were less than 1% of the original start weight. The first two pit sample concentrates have been shipped to an independent laboratory for analysis by fire assay. Processing of the third mini-bulk sample has begun. Additionally, the site has been completely winterized to allow for continued operations throughout the winter.Analytical results from the first 13 hole drill program totaling 1261.5 m have been received from Activation Laboratories Ltd., an independent ISO1EC 17025 rated laboratory in Ancaster, Ontario.Analyses include 83.194 grams per tonne (g/t) gold (Au) over 1 m from drill hole DV-012-11; 5.217 g/t Au over 1 m from drill hole DV-008-11; and 8 other intervals between 0.420 g/t Au and 1.930 g/t Au, from intervals between 1 and 7 m in length (Table 1). True thickness of the intervals cannot be determined at this early stage of drilling.Table 1: Selected intervals from the first 13 drill holes completed at Duvay by Tres-Or and Aurizon.Drill Hole #g/t AuLength (m)From (m)To (m)DV-012-1183.19415051DV-012-110.46021416DV-008-115.21711819and0.44443034and0.67815657DV-006-111.93016970DV-003-110.53772532DV-004-110.48145458DV-005-110.4202121123DV-009-110.47713233The drill results including 1 m intervals up to 83.194 g/t Au support Duvay's reputation as a nuggety gold occurrence, which extends back to government reports from the 1940s. Tres-Or and Aurizon expect the mini-bulk sample program to be critical in accounting for the nugget effect as we work towards establishing a gold resource at Duvay.The drill holes were designed to test structural intersections between the main west-northwest Duvay compressional shear zone, north-south striking near vertical extensional quartz veins, and northeast oriented faults and to investigate the continuity of one of the structures composing the Duvay mineralized area. Drill holes DV001-11 to DV006-11 were drilled across the most prominent northeast oriented fault, with two holes from each of three collar locations 75 m apart. From each collar location, one hole was planned to the northwest at approximately 45 degrees to 125 m, and the second hole was vertical to 75 m. Two more similar set-ups (DV008-11 + DV009-11 and DV011-11 and DV012-11) were located along a magnetically defined fault approximately 100 m northwest of the first fault. A sixth set-up for DV009-11 and DV010-11 tested the main shear zone approximately 150 m further west.The Duvay Gold Project is located in a favourable geological setting with potential to host low-grade, bulk tonnage gold mineralization. Visible gold was discovered at Duvay in the late 1930s. Gold mineralization at Duvay is associated with a northwest trending shear zone and intersecting northeast faults. The property encompasses kilometric zones of intense carbonate alteration (ankerite) with quartz stockworks. Native gold occurs on the property as well as disseminated pyrite, chalcopyrite, sphalerite and minor galena.Laura Lee Duffett, President and CEO of the Company, a qualified person by the standards of National Instrument 43-101, is overseeing the project and is responsible for the content in this news release.On behalf of the Board of Directors,Laura Lee Duffett President and CEOAbout Tres-Or Resources Ltd.:Tres-Or Resources Ltd. (TSX VENTURE:TRS) is a Canadian resource company exploring gold and precious metals projects and diamond assets in Ontario and Quebec. The experienced team has proven success in exploration through to discovery and mine development. Additional information related to the Company is available at: www.tres-or.com.FOR FURTHER INFORMATION PLEASE CONTACT: Dominic SpedaliereTres-Or Resources Ltd.Corporate Communications604-688-8700604-688-8884 (FAX)info@tres-or.comwww.tres-or.comNeither the TSX Venture Exchange nor its Regulation Service Provider (as the term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy of accuracy of this news release.