Major increase of indicated resources at Northgate's Young-Davidson Project

Northgate Minerals Corporation (TSX: NGX, AMEX: NXG) is pleased to report the results of a new underground mineral resource estimate at its Young-Davidson property near Matachewan, Ontario. The estimate combines the results of the 2007 diamond drill program with historic drilling data. A re-estimate of the indicated resources mineable by open pit methods, incorporating the results of a recently completed infill drilling campaign, is presently underway and will be released at a later date.

EXPLORATION HIGHLIGHTS

- Total gold resources on the property including those mineable by open
pit methods is now 2.34 million ounces

- Total underground gold resources in the four main ore zones have
increased to 1.86 million ounces

- Indicated resources underground have increased to 1.42 million
ounces, a gain of 137% compared to last year's estimate

- The percentage of total resources underground in the indicated
category has increased from 36% to 76%

- Vertical continuity of the zones has been established to a depth of
1,350 metres below surface

- Horizontal continuity on two levels between the two historic mines
has now been demonstrated by drill intersections

Ken Stowe, President and CEO, commented, "Since we acquired the Young-Davidson property two years ago, we have essentially achieved our goal of doubling the underground gold resource base. We have clearly established that there are large areas of continuous mineralization both between and below the workings in the two historic mines. An equally important objective has been the conversion of inferred resources to the indicated category and we are very pleased that we now have 1.4 million indicated ounces underground with more to come in 2008. The first priority of our 2008 diamond drill program will be to increase the indicated ounces underground by an additional 0.5 million ounces focusing the drilling in the prospective areas between the two Boundary Zones and the Lucky/Lower YD Zones. Maximizing the number of indicated resource ounces is important as it is these ounces that can be converted into reserves in the upcoming Feasibility Study. The tight spatial distribution of the resources on the property will be beneficial in minimizing the required underground infrastructure."

OVERVIEW OF YOUNG-DAVIDSON EXPLORATION AREA

Gold mineralization on the Young-Davidson property is present primarily in an intrusive syenite host rock dipping at approximately 70 degrees to the south. Figure 1, shown below, presents known resource areas (as defined in the legend), historic mine workings, simplified geology, and potential new resource areas. Elevations in the longitudinal section are based on an artificial mine grid where the surface is defined as 10,355 metres.