Grenville Changes Yearend

VANCOUVER, BC--(Marketwire - October 25, 2007) - Grenville Gold Corporation (TSX VENTURE: GVG) (PINKSHEETS: GVLGF) (FRANKFURT: F9I) (ISIN CA 3977181070) (WKN: A0KELU) ("Grenville" or "the Company") announces that its Board of Directors has approved changing its financial yearend date from October 31 to December 31. The Company will report the fiscal year October 31, 2006 to October 31, 2007 and then report a two (2) month short fiscal year from November 1, 2007 to December 31, 2007. Thereafter, the Company will report from January 1st to December 31st with interims at March 31, June 30, and September 30. The change of the financial year was implemented to align the Company's reporting periods with the yearends of its operating companies based in Peru. Under Peruvian law, all corporations must have a fiscal yearend of December 31 and the Board of Directors concur that this change to the parent company yearend is necessary for audit purposes.

About Grenville Gold Corporation

Grenville Gold www.grenvillegoldcorp.com is a junior resource company seeking prospective properties in Peru and Ecuador. The Company has three operating subsidiaries: 90%-owned Inversiones Mineras Alexander S.A.C. in Peru which owns the Silveria Property, Espanola Property and the Chorobal Property, Minera MineGreville S.A. in Ecuador which has an option to acquire the La Tigrera Project, and Parkman Diamond Corp. in Ontario, Canada which owns the Parkman Diamond Prospect. 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

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.