AUM australian mining investments limited

australian mining opens up 20%

  1. 212 Posts.
    AUM - Company Announcement
    25 July 2003
    Part 1/1

    Aust Mining completes Mt Norma plant commissioning

    Sydney - Friday - July 25: (RWE) - Australian Mining Investments
    Ltd has completed the commissioning phase of the Mt Norma Copper
    Sulphate Plant at Cloncurry, Queensland.

    The company believes the commissioning phase confirms the AUM SX
    Column Technology will now operate at commercial levels of production.

    It has been experimenting with different-sized mediums and
    loading procedures to obtain the maximum flow and loading of copper
    within the circuit.

    The optimum medium has been identified, resulting in a flow of
    300 cubic metres p/h per column and increased copper recovery.

    As a result of the additional testing of medium and loading
    procedures during commissioning, the company's metallurgical team
    discovered a new addition to the loading cycle which increased the
    copper loading of the columns over and above the results from the pilot
    plant results.

    The appropriate sized medium has been ordered to load all the
    columns and it is expected the plant will be operating at the full
    capacity of 6000 tonnes a year production within the next six weeks.

    Plans are under way for the mining of high-grade copper ore from
    the Mt Norma orebody and the construction of a 50,000 tonne vat leach
    pad with the view to increasing production.


    25-07 1007

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