FOR IMMEDIATE RELEASE

September 28, 2007

MR. ALAN SNOWDEN JOINS THE BOARD OF TRI ORIGIN’S AUSTRALIAN SUBSIDIARY

Tri Origin Exploration (TOE:TSX-V), (“the Company”) is pleased to announce that Alan Snowden, a director of the Company since 1991 has now also joined the board of the Company’s 51% owned Australian subsidiary Tri Original Minerals Ltd (TRO:ASX).  Alan brings strong financial and business management background to both boards.  Alan’s appointment by the TRO board will further strengthen the close working relationship between the 2 companies.

The release lodged by TRO on the Australian Securities Exchange follows:

“As part of the continued growth of Tri Origin Minerals Ltd to a mining company, the Directors are pleased to advise that Mr Alan Snowden has been appointed as a non executive director effective 27 September 2007. Mr Snowden has previously been an alternate director for Dr Valliant.

The Directors also advise that Dr Robert Valliant has stepped down as an executive director of Tri Origin Minerals Ltd and will continue to contribute to the future direction of the Company as a non-executive director.

The Directors also advise that, subject to shareholders’ approval at the forthcoming Annual General Meeting on the 23 November 2007, the Company intends to issue 200,000 options to Mr Snowden or his nominee.”

Tri Origin Exploration also wishes to inform its shareholders that TRO has filed its June 30^th, 2007 year end financial statements with the Australian Securities Exchange.  These statements can be accessed at http://www.asx.com.au  and are posted on Tri Origin’s website at www.triorigin.com or available from the Company on request.

In addition, TRO has also made notification of a change of its corporate address in Sydney to:

Level 3,

50 Park Street,

Sydney, NSW 2000

Australia

Tel:  02 9267 8000

Fax:  02 9267 8066

For further information please contact:

Tri Origin Exploration Ltd.

Dr. Robert Valliant, President

Tel: (905) 294-9942

Fax: (905) 294- 9943

Web page: www.triorigin.com

E-mail: invest@triorigin.com

Tri Origin Exploration Ltd. is publicly listed on the TSX Venture Exchange under the trading symbol TOE. Tri Origin has leveraged exposure to mineral discoveries in Australia through its 51% equity interest in its subsidiary, Tri Origin Minerals Ltd.; a publicly traded company listed on the Australian Stock Exchange under the symbol TRO.