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Annual Report 2007 - Antofagasta plc

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CHAIRMAN’S REVIEWProduction of molybdenum, which is a by-product,increased to 10,200 tonnes compared to 9,800 tonnesin 2006, due to higher molybdenum ore grades whichrose from 0.028 per cent to 0.030 per cent. Revenuefrom molybdenum sales is treated as a credit againstcash costs and contributed to the negative cash costof US 10.8 cents per pound in <strong>2007</strong> compared tothe positive cash cost of US 16.4 cents per poundin 2006.Selected data for Los Pelambres326.729.3•8.7350.67.9•322.8 324.2(17.1)•7.9 8.716.4•289.9(10.8)•9.8 10.2Global economic pressures which affected energy,fuel and oil costs and, indirectly, equipment leasingand maintenance costs, were partially offset bylower TC/RC’s enabling Los Pelambres to holdcost increases to a minimum.‘03 ‘04 ‘05 ‘06 Ô07Copper production (‘000 tonnes)Molybdenum production (‘000 tonnes)• Cash costs (US cents per pound)The plant expansion project started in mid-2005was completed at the beginning of <strong>2007</strong> at a cost ofUS$192 million and the plant has been operating sincethen at the newly installed capacity of around 130,000tonnes per day.Copper production in 2008 is expected to beapproximately 330,000 tonnes with a grade of0.79 per cent copper – up on <strong>2007</strong> because of theimproved grade and the smaller percentage of primaryore while molybdenum production is expected todecrease to 6,800 tonnes in accordance with themine plan.125.9 128.1 127.4126.3113.3• •0.910.88• ••0.80 0.810.71‘03 ‘04 ‘05 ‘06 ‘07Plant throughput (000’ tonnes per day of ore)• Copper grade (per cent)The second stage of a two year explorationprogramme to identify additional resources beyondthe present 2.9 billion tonnes has been substantiallycompleted. The results of this programme in thearea to the south-east of the open pit have beenencouraging and additional drilling will be required todefine the resource and to evaluate its economics inrelation to the long-term mine plan of Los Pelambres.Negotiations with the mine and plant unionsrepresenting the whole labour force were dueto take place in September <strong>2007</strong> and July 2008respectively but in fact, contracts were agreedahead of time with both unions for up to four yearsreflecting the excellent relations between LosPelambres and its work force.<strong>Antofagasta</strong> <strong>plc</strong> <strong>Annual</strong> <strong>Report</strong> and Financial Statements <strong>2007</strong> 9

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