EVOLUTION MINING LIMITED — Regulatory Filings 2008

Sep 2, 2008

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3 September 2008

CATALPA RESOURCES LAUNCHED TODAY

Westonia Mines Limited (ASX: WEZ) has formally commenced trading as Catalpa Resources Limited (“Catalpa”), on Australia Securities Exchange code CAH.

Following overwhelming shareholder approval, the change has been approved by the Australian Securities and Investments Commission. The Company’s head office and telephone contact details remain the same, with the Company website now available at catalparesources.com.au.

Catalpa Managing Director Bruce McFadzean said the name and brand better reflect the company’s forward-looking focus and direction.

“The timing was right to make the change as the Company is on the cusp of a new phase of development towards production at the Edna May Project assets near Westonia, WA,” Mr McFadzean said.

“The Company has evolved considerably in recent months. With the appointment of a new management team and an experienced Board we are moving closer to our goal of utilizing the Company’s assets as a platform to develop, explore, acquire and grow a mid tier resource business.

“We have initiated an update to the 2006 Edna May Gold Project Feasibility Study which is scheduled for completion in the September quarter 2008. We also have a renewed exploration focus on both underground and near mine surface targets, and regional targets to increase Catalpa’s Resources and Reserves.

“Given the progress we have made and the buoyant outlook on the gold price, we believe that Catalpa Resources Limited presents a sound investment opportunity with significant upside potential on the current share price.

“Notably, there have been three successful mining programs which have occurred both above and below the planned open pit. We believe this significantly reduces the risk of the Edna May Project”.

ASX Code: CAH

Capital Structure

Total number of shares: On issue: 345,377,313 Share Price Current: (2 Sept 2008) $0.045 (Market cap changes according to share price) 12 month range: $0.075 (high) - $0.038 (low)

Board of Directors

Mr John Rowe: Chairman Mr Bruce McFadzean: Managing Director Mr Murray Pollock: Director Mr Barry Sullivan: Director Mr Chris Melloy: Director Nigel Johnson: Director Mr Graham Anderson: Company Secretary Mr Leonard Math: Company Secretary

Major Shareholders

Major Shareholders
Lion Selection Group Limited	44.04%
Goldrich Holdings	4.05%
Zero Nominees	2.57%
HSBC Custody Nominees Aus. Charlemagne Investments Drummond Shay Margaret	2.03% 1.35% 1.16%
Geddes Angus William	0.88%
ANZ Nominees Limited	0.78%
Pretorius Leon Eugene	0.58%

“It is the belief of the Board, and supported by others in the investment community, that our current share price is significantly undervalued and that it is timely for the Company to return to the investor radar.

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“We have a sound Resource base at Edna May with significant upside to grow resources and reserves and move towards production. Re-naming the Company to Catalpa Resources Limited is a critical link in the rebirth and growth of the company,” Mr McFadzean concluded.

What’s in a name?

The name Catalpa has an interesting history in Western Australia. Catalpa is the name of a boat attached to a well-planned, brave, brazen and successful rescue of Fenian prisoners off the Perth coastline near Rockingham in 1876.

“We believe that the name Catalpa symbolises the determination of the considerable historical mining efforts at Westonia on three separate occasions in the last 100 years. The success and determination of all involved in the Catalpa Rescue can be likened to the resolve and commitment of the current Board and Management to the success of Catalpa Resources Limited and our vision of becoming a successful mid tier resource company,” Mr McFadzean explained.

ABOUT CATALPA RESOURCES

Perth-based Catalpa Resources Limited aims to become Australia’s next mid tier gold producer by developing its open pit assets, located on its wholly owned mining tenements in Western Australia.

Catalpa has an experienced and innovative management team that aims to realise a production and cash flow profile from the development of the Edna May open pit resources in the earliest possible timeframe. This is the company’s immediate strategy.

Catalpa is also pursuing parallel growth by exploring its 800km² of under-explored Westonia Greenstone Belt and reviewing other regional opportunities for acquisition and/or joint venture. In particular, the Company seeks to identify and develop new projects and/or acquisitions on its extensive land holding or within the region, which is prospective for gold, nickel and base metals.

ENDS

For further enquiries contact:

Bruce McFadzean Warrick Hazeldine / Annette Ellis Managing Director Media and Investor Relations Catalpa Resources Limited Purple Communications Tel (08) 9321 3088 Tel: (08) 9485 1254

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