SOURCE: Grenville Gold Corporation

May 16, 2007 16:10 ET

Grenville Reports Sample Assays of up to 11.7% Copper

VANCOUVER, BC -- (MARKET WIRE) -- May 16, 2007 -- Grenville Gold Corporation (TSX-V: GVG) (PINKSHEETS: GVLGF) ("Grenville" or "the Company") is pleased to release additional underground samples on its La Espanola Copper-Gold Property located 100 miles southeast of Lima, Peru.

A total of 45 rock grab samples were collected from various underground workings with assays ranging from 70 parts per million to 11.37 per cent copper and 0.007 to 0.794 grams of gold/tonne. Mineralization on surface is hosted by steeply dipping malachite-stained quartz veins averaging between 0.5 to 3 meters wide. In the underground workings sulphide mineralogy consists of bornite and chalcopyrite. The average of the samples was 0.19 ppm Gold and 2.51% Copper. The table lists the complete results.

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Sample Number   Gold    Copper   Sample Number     Gold   Copper
                ppm       %                        ppm      %
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    01526      0.609     3.23        01549         0.027    0.52
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    01527      0.464     2.88        01550         0.011    0.53
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    01528      0.094     1.85        01633         0.043    5.05
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    01529      0.101     2.14        01634         0.018    1.64
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    01530      0.499     8.77        01635         0.185    4.35
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    01531      0.011     0.01        01636         0.597    2.96
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    01532      0.783     3.95        01637         0.189    0.94
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    01533      0.177     4.69        01638         0.283    2.17
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    01534      0.794     5.70        01639         0.052    2.93
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    01535      0.170     3.60        01640         0.111    5.46
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    01536      0.104     1.89        01641         0.103    0.52
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    01537      0.325     0.61        01642         0.457   11.37
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    01538      0.008     0.09        01643         0.189    5.70
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    01539      0.015     2.19        01644         0.239    4.60
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    01540      0.009     0.83        01645         0.189    1.51
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    01541      0.007     1.92        01646         0.189    3.03
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    01542      0.037     0.44        01647         0.048    1.54
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    01543      0.017     0.51        01648         0.114    0.04
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    01544      0.012     0.01        01649         0.364    1.46
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    01545      0.012     0.31        01650         0.445    3.88
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    01546      0.009     0.71        01419         0.142    0.10
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    01547      0.051     1.72        01420         0.153    2.67
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    01548      0.038     1.92      Averages        0.19     2.51
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Results are consistent with the former producing Raul/Condestable Mines, located 15 kilometers west of Espanola. These mines are reported to have produced over 20 million tons of ore grading 1.5% copper and 0.5 grams of gold per tonne.

Analyses for the samples reported herein were performed by Inspectorate Services Peru S.A.C in Lima, Peru. Inspectorate Services Peru S.A.C. is an International Organization for Standardization ("ISO") 9000 certified laboratory. ISO 9000 certification a quality assurance model ensuring organizations develop a quality system. The official ISO explanation of the ISO 9000 group of standards can be found at www.iso.ch/iso/en/iso9000-14000/index.html.

The exploration program on La Espanola is under the supervision of Manuel Escalano, Ph.D, Manager of Exploration and Mine Development for Inversiones Mineras Alexander S.A.C., a 90% owned Grenville subsidiary. The technical information contained in this release has been reviewed by Jeffrey Reeder, P.Geo, technical advisor for Grenville Gold and qualified person as defined in National Instrument 43-101.

About Grenville Gold Corporation

Grenville Gold www.grenvillegold.com is a junior resource company seeking prospective properties in Peru and Ecuador. The company has three subsidiaries: Inversiones Mineras Alexander S.A.C. in Peru, Minera MineGreville S.A. in Ecuador and Parkman Diamond Corp. in Ontario, Canada. Grenville Gold plans to leverage the experience of its Board and Management in exploration and mining to develop its growth strategy in North and South America.

On behalf of the Board of Directors,

"A. Paul Gill"
President & CEO

Ph. 604-669-8842
info@grenvillegold.com
We Seek Safe Harbour

The TSX-Venture Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this release. All statements, other than statements of historical fact, included herein are forward-looking statements that involve various risks and uncertainties. There can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from the Company's expectations are disclosed in the Company's documents filed from time to time with the TSX Venture Exchange, the British Columbia Securities Commission, the Ontario Securities Commission, and the Alberta Securities Commission.

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