Northern Orion Resources Inc.

Northern Orion Resources Inc.

July 21, 2005 13:53 ET

Northern Orion to Release Second Quarter Results on August 15, 2005

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - July 21, 2005) - Northern Orion Resources Inc. (TSX:NNO)(AMEX:NTO) will release its second quarter results after the close of market on Monday, August 15, 2005 and will host a telephone conference call on Tuesday, August 16, 2005 at 1:30 p.m. Pacific Time (4:30 p.m. Eastern) to discuss these results. The conference call may be accessed by dialing 1-866-898-9626 in Canada and the United States, or 1-416-340-2216 internationally.

The conference call will be archived for later playback until August 23, 2005 and can be accessed by dialing 1-800-408-3053 or 1-416-695-5800 and using the passcode 3159549#.

David Cohen, President and CEO

Contact Information