Rochester Resources Provides Exploration and Development Update at the Florida Area, Mina Real Project

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Sept. 3, 2008) - Rochester Resources Ltd. (TSX VENTURE:RCT)(OTCBB:RCTFF)(FRANKFURT:R5I) is pleased to provide an update on exploration and development at the Florida Area, Mina Real Project. Extensive work has been completed over the past several months, cutting 13 new vein systems at Florida NW in addition to the discovery of the Florida 4 vein system. In order for the company to access the Florida North area and particularly Florida 4, 6.3 kilometres of access roads were completed. These access roads ended up cutting and exposing 13 vein systems at Florida NW at the 1300m - 1400m elevation, above the known favourable mineralized horizon in the area.

The company is developing a long range mine plan, using drift development as an exploration tool at Florida 4 by harnessing the local topography to develop 7 drifts at different topographic elevations. These 7 drifts will help build an infrastructure for mine development, and generate a clearer understanding of the mineralogy and economics of the vein system. Furthermore the drifts will create an access point from the centre of the Florida 4 vein system to the 13 vein systems located due east at Florida NW by way of a cross-cut. The cross-cut will take place at the 1140 metre elevation level, understood to be an elevation in the area where economic mineralization is prevalent. The cross-cut will be approximately one kilometre from the centre of the Florida 4 vein system and is planned to intersect all 13 vein systems at Florida NW. This is expected to be the most cost-effective and efficient method to access these vein systems at their favourable horizon. Upon success, the company will have an extensive infrastructure in place to mine 14 vein systems. The company anticipates these developments will translate to significant internal growth for the company in 2009. Currently, the company is developing the 7 drifts at Florida 4 and anticipates being in the centre of the Florida 4 system at the 1140m level within 3 to 4 months. The completion of the cross-cut to Florida NW's 13 vein systems should take an additional 4 to 6 months at which point the company, if successful, will be in position to further expand operations.

About Rochester Resources Ltd.:

Rochester represents a pure-play in the exploration, development and production of high-grade gold and silver properties located in Nayarit, Mexico. The Company is a niche player in Mexico which has assembled an attractive portfolio of properties in the Sierra Madre Occidental Range. This is the largest epithermal precious metal region in the world, hosting the majority of Mexico's large tonnage gold and silver deposits.

Rochester is well positioned to advance its Projects and can very quickly become a significant player in Mexico. Rochester has a strong senior management team based in Mexico, and a workforce in place to advance its projects through to mine development.

ON BEHALF OF THE BOARD

Dr. Alfredo Parra, President and CEO

Forward Looking Statements

This Company Press Release contains certain "forward-looking" statements and information relating to the Company that are based on the beliefs of the Company's management as well as assumptions made by and information currently available to the Company's management. Such statements reflect the current risks, uncertainties and assumptions related to certain factors including, without limitations, competitive factors, general economic conditions, customer relations, relationships with vendors and strategic partners, the interest rate environment, governmental regulation and supervision, seasonality, technological change, changes in industry practices, and one-time events. In addition, the Company has not conducted an independent feasibility study on the Mina Real project which may increase the risk that the planned operations are not economically viable. Should any one or more of these risks or uncertainties materialize, or should any underlying assumptions prove incorrect, actual results may vary materially from those described herein.

The TSX Venture Exchange has not reviewed and does not accept responsibility for the adequacy or the accuracy of this release.

For more information, please contact Investor information contact: Empire Communications Inc. (604) 484-0066 Email: info@rochesterresources.com Website: www.rochesterresources.com