Ann: Glencore Trial Shipment Update, page-2

  1. Not stopping to sort paragraphs, but it sounds better in writing than the results initially appear.

    UPDATE - PRIMARY ORE PROCESSING UPDATE – ROCKLANDS MINING ROCKLANDS TRIAL ORE PROCESSING AT ERNEST HENRY MINE COPPER MINE 29.5% COPPER & 6.7 GRAMS PER TONNE GOLD CONCENTRATE ACHIEVED Preliminary results from the mineral processing testwork at the Glencore-owned Ernest Henry Copper Mine processing plant were outstanding and surpassed expectations, considering only thirty hours of throughput was possible for the Rocklands ore. Approximately 22,000 tonnes of sulphide primary ore at 1.36% Cu + .49g/t Au was mined and transported, for the trial, the first and only sulphide ore mined at Rocklands to date. The near surface sulphide ore for the testwork was excavated from the South-East end of the Las Minerale Pit, immediately adjacent to the Native Copper zone. The ore was processed in a thirty hour window over two days, to test the ore for handling, crushing, milling, flotation and filtration characteristics through a full size production mineral processing facility. CuDeco metallurgists conclude the result demonstrates that the Rocklands primary ore is amenable to high recovery and as having good metallurgical characteristics for processing through flotation treatment. The testwork revealed no issues with processing the ore and the results were described as exceptionally pleasing, given that normally a much longer period of time is required to settle the circuit down before controlled adjustments of reagents within the rougher and the cleaner flotation circuits can be made. Recoveries were increasing over the period of the trial without optimum conditions being reached. Gold in concentrate was 6.7 grams per tonne average. The Ernest Henry Plant will not be treating any Native Copper ores from Rocklands. The native copper is to be processed entirely at the Rocklands Copper Project processing plant.
 
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