Tres-Or Resources Ltd.
TSX VENTURE : TRS

Tres-Or Resources Ltd.
Arctic Star Diamond Corp.
TSX VENTURE : ADD

Arctic Star Diamond Corp.

March 18, 2008 12:21 ET

Amendment to Tres-Or and Arctic Star Joint Venture Agreement-Tres-Or Acquires Lapointe Kimberlite Pipe, Ontario

VANCOUVER, BRITISH COLUMBIA--(Marketwire - March 18, 2008) - Tres-Or Resources Ltd. ("Tres-Or") (TSX VENTURE:TRS) and Arctic Star Diamond Corp. ("Arctic Star") (TSX VENTURE:ADD) are pleased to report that the parties have executed an Amendment to the December 2005 Joint Venture Agreement. Arctic Star has agreed to transfer its interest in the Lapointe Kimberlite Pipe to Tres-Or in order to maintain an undiluted interest in exploration outside of Lapointe for additional diamondiferous kimberlites. Tres-Or assumes the full costs of the exploration programs carried out at the Lapointe Pipe, and has acquired a 100% interest in Lapointe subject to a 5.0% Net Profits Interest granted to Arctic Star. Most importantly, this exploration includes the recently collected 50 tonne sample for macro-diamonds, which has yet to begin processing for diamonds.

Outside of the Lapointe Kimberlite, Arctic Star will continue with a 40% interest in the Joint Venture exploration property activities within a 10,700 square kilometer Area of Interest surrounding the Lapointe discovery. Arctic Star continues to participate in the exploration of the Joint Venture's properties outside of Lapointe and to contribute it's pro rata portion of the ongoing expenditures.

The Lapointe kimberlite pipe (+21 hectares in size) is located about 80 km southeast of Timmins, Ontario. In February 2008, Tres-Or successfully completed the recovery of a large sample of more than 50 tonnes of kimberlite for macro-diamond processing (see Tres-Or news release dated February 11, 2008). The large tonnage sample was shipped to a secure storage facility pending engagement of a DMS plant facility to process the kimberlite for macro-diamond content.

Caustic fusion tests of almost 4 tonnes of the Lapointe Kimberlite yielded 440 diamonds and have returned results suggestive of a potentially coarse size distribution. Such hints of a coarse distribution warrant further examination due to the large size of the body (+21 hectares) and low mining costs in the area. The primary goal of the 50 tonne test is to recover macro-diamonds and confirm the coarse size distribution.

Tres-Or and Arctic Star are continuing exploration together in the Joint Venture Area of Interest, including drill testing of already identified priority geophysical targets, and intensive indicator mineral sampling program near the Lapointe Kimberlite itself.

Harrison Cookenboo, Ph.D., P.Geo., a Qualified Person by the standards of National Instrument 43-101 has reviewed and approved the contents of this news release. Dr. Cookenboo is responsible for the design and implementation of the field programs.



ON BEHALF OF ON BEHALF OF
THE BOARD OF DIRECTORS OF THE BOARD OF DIRECTORS OF
TRES-OR RESOURCES LTD. ARCTIC STAR DIAMOND CORP.

Laura Lee Duffett, President Patrick Power, President


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

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