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QUEBEC CITY, QUEBEC--(Marketwire - June 3, 2010) - Plexmar Resources Inc. (TSX VENTURE:PLE) announces that,through its wholly owned Peruvian subsidiary, it has granted rightsto Minera Trece Barras S.A.C. to provide exploration services and exploitation of high grade gold veins ontheBolsa del Diablo project. The agreement covers the oxide portion containing more than 6 g/t Au and has a 10 year maximum duration. (The oxide has an average depth of 50 meters.)In return, a 2% Net Smelter Royalty will be paid to Plexmar as well as revenues sharing from future exploitation. Ores extracted from the Bolsa del Diablo project may be purchased to feed the Malin plant.

Part of Trece Barras obligations is to comply with the Mining Law and obtain all necessary permits to allow exploration and exploitation including permissions from the local communities, environmental impact studies and all ministerial authorization.

Minera Trece Barras S.A.C. is a prominent Peruvian mining Company with 30 years of experience in processing precious metals and dealing with mining communities.

The Hans XX and Angolos concessions are not part of this agreement as the current option agreements have not been completed to allow such a transaction.

Plexmar can terminate this agreement should Trece Barras is not able to fulfill its obligations. This agreement was negotiated at arm's length; the two parties are totally independent from each other.

This press release includes certain statements that may be deemed "forward-looking statements". All statements in this release, other than statements of historical facts, that address future exploration drilling, exploration activities and events or developments that the Company expects, are forward looking statements. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results or developments may differ materially from those in forward-looking statements. Factors that could cause actual results to differ materially from those in forward-looking statements include market prices, exploitation and exploration successes, continued availability of capital and financing, and general economic, market or business conditions.

177 M shares outstanding

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.