Stmt.re Kennecott Utah Copper

Rio Tinto PLC 29 May 2001 The following was released on Friday 25 May 2001 by Rio Tinto's wholly owned subsidiary Kennecott Utah Copper Corporation. Kennecott To Curtail Operations MAGNA, Utah---May 25, 2001---Kennecott Utah Copper Corporation (KUC) will start to suspend operations at its North Concentrator Plant on or about June 1. Associated rail haulage operations will also be curtailed. The curtailment will impact about 235 hourly and salaried employees, and will reduce KUC's annual ore production by about 18 percent. Worker Adjustment and Retraining Notification Act notices were issued on May 25 announcing the curtailment. According to Bruce Farmer, Kennecott's president and CEO, 'The action is in response to difficult market conditions and the need to improve the Company's business performance. Our costs are too high and the closure of the higher cost, older North Concentrator Plant, will help reduce our costs over all. This action will be only a part of an ongoing drive to reduce costs and improve efficiencies.' In the last three years, continuing low copper prices and increased costs of production have resulted in United States copper production being reduced by more than 33 percent. 'Kennecott regrets the impact that this necessary action will have on employees. To minimize this impact, the Company is discussing an enhanced early retirement for eligible hourly and salaried employees. Meetings have been held with union officials to discuss the proposal for hourly represented employees. An early retirement program also will be offered to eligible salaried employees. We are hopeful that the loss of jobs can be minimized through attrition,' said company spokesman Louie Cononelos. He added that the Company believes that the proposed enhanced retirement plans and the reassignment of personnel should reduce the number of involuntary terminations. The North Concentrator is Kennecott's oldest plant. Its Bonneville Crushing and Grinding facility was built in 1966, and its Magna Flotation facility was upgraded in 1982. Following completion of Kennecott's Bingham Canyon Mine and Copperton Concentrator modernization in 1988, the North Concentrator was to be closed, but its operations were continued because of high copper prices. In 2000, KUC sold approximately 30,000 tons of copper in concentrate produced from the North Concentrator to independent smelting and refinery facilities because it was unable to process it on site. According to Farmer, KUC's smelting and refining production will be maximized as the Company reduces operating costs and improves efficiencies. For further information, please contact: LONDON AUSTRALIA Media Relations Media Relations Lisa Cullimore Ian Head + 44 (0) 20 7753 2305 +61 (0) 3 9283 3620 Investor Relations Investor Relations Peter Jarvis Dave Skinner + 44 (0) 20 7753 2401 +61 (0) 3 9283 3628 Jonathan Murrin Daphne Morros + 44 (0) 20 7753 2326 +61 (0) 3 9283 3639 Website: www.riotinto.com

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