DIATREME RESOURCES LIMITED — Board/Management Information 2011

May 26, 2011

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DIATREME RESOURCES LIMITED

ABN: 33 061 267 061

Postal Address: P.O Box 10288 Brisbane Adelaide Street QLD 4000 Registered Office: Level 2 87 Wickham Terrace Spring Hill QLD 4000 PH: +61 (0)7 3832 5666 FX: +61 (0)7 3832 5300 www.diatreme.com.au manager@diatreme.com.au

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ASX : DRX

27 May 2011

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

APPOINTMENTS OF DIRECTOR AND JOINT COMPANY SECRETARY

The Board of Diatreme Resources Limited (ASX: DRX) is pleased to announce the following two appointments, effective immediately:

Mr Cheng (William) Wang (MBA): Non-Executive Director

William has a finance major from The Chinese University of Hong Kong. For 15 years he held senior management positions in several major Chinese state owned companies, with most recent role being in charge of an international commodities trading arm with group assets exceeding $1.5 billion. Having worked across most provinces in China and understanding Chinese politics and government systems, he has developed wide business connections within China. Now domiciled in Australia, he has over recent years been active with Australian companies including directorships with China Century Capital Limited and Jupiter Mines Limited. William is currently the director of Investment Banking for the AIMS Financial Group and a director of Gulf Alumina Limited and Katana Group Limited.

Mr Tuan Do (BComm): Joint Company Secretary

Tuan is a Chartered Accountant with over 20 years experience in senior finance roles for public companies in Australia and New Zealand.

Ms Stanley continues in the role of Company Secretary jointly with Mr Do.

Yours sincerely Diatreme Resources Limited

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LENI STANLEY

Joint Company Secretary