Name: Edna May mine.

Location: The Edna May mine is located 350 km east of Perth, in Western Australia.

Controlling Company: Evolution Mining.

Brief History: Edna May is one of five of Evolution’s producing assets. The company was formed through the merger of Catalpa Resources and Conquest Mining and the concurrent acquisition of Newcrest Mining’s Cracow and Mt Rawdon gold mines.

Brief Description: The Edna May mine poured its first gold in April 2010. It has a current mine life of nine years and the opportunity for reserve expansion, with the existing mineralisation being open at depth.

Mining Method: Openpit mining is through conventional drill-and-blast, load-and-haul methods. A bulk mining approach has been adopted for the extraction of remnant high-grade reef structures and associated stockwork mineralisation, with a life-of-mine strip ratio of 1.9:1. This allows the mine to employ a single mining fleet (owner operated) for most of the mine life. Mining of the openpit is carried out on 10 m benches and 2.5 m flitches.

Products: Gold.

Major Infrastructure and Equipment: The process plant was purchased and transported from the Big Bell mine site to the Edna May site in 2007 and consists of a 2 MW semiautogenous (SAG) mill and a 3.7 MW ball mill, along with other components necessary to provide a steady-state capacity of 2.6-million tons a year.

The process plant consists of a conventional carbon-in-leach (CIL) process and SAG ball mill pebble crusher feed forward circuit.

Geology/Mineralisation: The mine is located near the northern end of the Westonia greenstone belt, in the Southern Cross province of Western Australia’s Archaean Yilgarn craton. The Westonia greenstone belt comprises a series of outliers of predominantly amphibolite-grade metamorphic rocks, extending an estimated 100 km west-northwest from near Edwards Find, south of Southern Cross. The remainder of the terrain comprises granitic rocks and their metamorphosed equivalents.

The Edna May gold mineralisation consists of high-grade reef structures and associated stockwork, veining hosted within three en-echelon tonalitic gneiss intrusions – Edna May, Greenfinch and Golden Point. The deposits are bound to the north and south by an ultramafic amphibolite.

Reserves: Total ore reserves as at June 30, 2012, were 24.6-million tons, with a grade of 1 g/t gold for 0.77-million ounces of gold.

Resources: Total measured, indicated and inferred resources as at June 30, 2012, were 45.8-million tons, with a grade of 1 g/t of gold for 1.54-million ounces of gold.

Prospects: Contractor secondary crushing trials, to increase the Edna May milling rate to more than three-million tons a year, started in January. Early results have been encouraging. The crushing of meaningful quantities of ore was expected to occur in the March quarter of 2013.

Contact Person: VP investor relations and business development, Aaron Colleran.

Contact Details:
Evolution Mining,
tel +61 2 9696 2900, fax +61 2 9696 2901,
email admin.perth@evolutionmining.com.au, and
website www.evolutionmining.com.au/

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