Northgate Announces Increase in Gold Reserves at its Stawell Gold Mine
Monday September 8, 4:30 pm ET

Mine-Life Extended by 1.5 years Until Q4-2011
VANCOUVER, Sept. 8 /CNW/ - (All figures in US dollars except where noted) - Northgate Minerals Corporation (TSX: NGX, AMEX: NXG) is pleased to announce that exploration drilling since February 2008 has identified approximately 880,000 tonnes of additional mineral reserves at its Stawell Gold Mine located in Victoria, Australia. These newly defined reserves contain 140,000 ounces of gold and will extend the current mine-life by an additional 18 months until the fourth quarter of 2011.

Reserve Highlights

- 140,000 ounces of additional gold reserves have been delineated in
only five months at a cost of $20/ounce.

- Stawell's mine-life has been extended for an additional 18 months
until Q4-2011.

- The new GG6 reserve zone averages 6.0 g/t gold, which is
approximately 15% higher than the reserve grade in other areas of the
mine.

- GG6 remains open to the north, where there is excellent potential to
add additional high grade reserves.

- High-grade mineralization intersected below GG6 has provided
additional exploration targets, which will further enhance the GG6
zone.