Mainstream Minerals Intersects Wide Zones of Uranium, Rare Earths, Rare Metals, Sulfur and Iron at the Phyllis Lake Project, Ignace, Ontario.

Nov 26, 2008 (TheNewswire.ca via COMTEX) -- (via Thenewswire.ca)

November 26 2008 - Mainstream Minerals Corp. (TSX.V: MJO) and King's Bay Gold Corp. (TSX.V: KBG) are pleased to announce the successful completion of their Phase 1 drilling program on their joint-ventured Phyllis Lake Project located in Grummitt and Cathcart Townships near the Town of Ignace, Ontario.

The results from this program confirms the presence of wide zones of uranium, rare earths, rare metals and other minerals, notably sulfur and iron, at or near surface in East Zone Number 1. All of these minerals have significant economic value and given that these wide zones are at or near surface, they are amenable to open pit mining.

Both companies are also cooperating to stake more land in the immediate area which could triple the size of this project from the current 64 claim units (2,560 acres). The property is easily accessible via the TransCanada Highway and has a location advantage of being intersected by a railroad.

The results from the completed Phase 1 program are as follows:

Hole # 1

From 2.0 to 11.0 metres

9.0 metres grading 0.0204 % Uranium, 470.55 g/t Chromium, 27.40 g/t Gallium, 16.52 g/t Lithium, 18.22 g/t Scandium, 50.66 g/t Vanadium, 26.00 g/t Tellurium, 8.35 g/t Tantalum, 18.09 g/t Strontium, 5.50 g/t Zirconium, 7.23 g/t Cadmium, 1.021 % Calcium, 0.415 % Magnesium, 0.0654 % Manganese, 0.0343 % Titanium, 0.0222 % Copper, 0.0165 % Phosphorous, 15.03 % Sulfur and 28.80 % Iron.

From 18.0 to 29.5 metres

11.5 metres grading 0.0080 % Uranium, 606.66 g/t Chromium, 10.37 g/t Gallium, 18.58 g/t Lithium, 11.04 g/t Rubidium, 10.19 g/t Scandium, 21.79 g/t Vanadium, 8.58 g/t Tellurium, 3.33 g/t Tantalum, 5.91 g/t Strontium, 6.87 g/t Zirconium, 4.08 g/t Thorium, 8.45 g/t Cerium, 1.75 g/t Cadmium, 1.16 g/t Yttrium, 0.562 % Magnesium, 0.0603 % Manganese, 0.0513 % Titanium, 0.0245 % Phosphorous, 7.27% Sulfur and 15.32 % Iron.

Hole # 2

From 1.48 to 16.5 metres

15.02 metres grading 0.0285 % Uranium, 395.71 g/t Chromium, 30.22 g/t Gallium, 10.35 g/t Lithium, 20.39 g/t Scandium, 13.00 g/t Vanadium, 29.25 g/t Tellurium, 9.16 g/t Tantalum, …