Tropicana JV com­mits to Long Is­land

The Australian Mining Review - - NEWS - CAMERON DRUMMOND WA

ANGLOGOLD Ashanti and In­de­pen­dence Group have locked in $46 mil­lion for Phase One of its Long Is­land strat­egy at the Tropicana gold mine, 330km north­east of Kal­go­or­lie in WA.

The de­vel­op­ment will see 2.1 mil­lion ounces (moz) added to the Tropicana busi­ness plan, ex­tend­ing the mine life un­til 2027.

Tropicana will also in­stall a 6 megawatt ball mill to in­crease pro­duc­tion and gold re­cov­ery rates by 3 per cent, to 92 per cent.

The JV part­ners said the Long Is­land strat­egy was driven by de­vel­op­ing a more cost-ef­fec­tive way to mine waste.

It in­volves us­ing a strip-min­ing ap­proach that min­imises waste haulage dis­tances by us­ing in-pit back­fill, rather than truck­ing the ma­te­rial long dis­tances to sur­face waste dumps.

“This project is in line with our ap­proach of de­vel­op­ing cost-ef­fec­tive brown­field projects with at­trac­tive pay­back pe­ri­ods that ex­tend life and im­prove mar­gins,” AngloGold Ashanti Aus­tralia se­nior vice pres­i­dent Michael Erick­son said.

“The project val­i­dates the in­no­va­tive ideas de­vel­oped by our site team and tech­ni­cal spe­cial­ists, and also gives us an ex­cel­lent base from which we can in­ves­ti­gate adding ad­di­tional value through un­der­ground min­ing op­por­tu­ni­ties and re­gional ex­plo­ration.”

An­goGold stated that pro­duc­tion over Tropicana’s re­main­ing life of mine was now fore­cast to be about 4moz.

This did not in­clude po­ten­tial un­der­ground pro­duc­tion from the Bos­ton Shaker ore body, where a pre-fea­si­bil­ity study would be un­der­taken some­time in 2018.

Tropicana has de­liv­ered a 72 per cent in­crease in ore re­serves since the project was ap­proved in Novem­ber 2010.

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