DIATREME RESOURCES LIMITED — Major Shareholding Notification 2007

Oct 16, 2007

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DIATREME RESOURCES LIMITED

ABN 33 061 267 061

Level 2, 87 Wickham Terrace, Spring Hill, Qld, 4000 PO Box 10288 Brisbane Adelaide Street Queensland 4000

Telephone : 61 7 3832 5666 Facsimile : 61 7 3832 5300 Email : manager@diatreme.com.au Website : www.diatreme.com.au

ASX Codes: DRX, DRXO

Company Announcement Office Australian Securities Exchange Level 4, 20 Bridge Street Sydney NSW 2000

17 October 2007

RELEASE OF VOLUNTARY ESCROWED SHARES DORAL MINERAL INDUSTRIES LIMITED

The Directors advise that the 3,000,000 ordinary fully paid shares issued to Doral Mineral Industries Limited, a major shareholder, and quoted on ASX in October 2006 have today been released from voluntary escrow.

For and on behalf of the Board

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DAVID H HALL

Executive Director - Operations