Acquisition by Comalco

Rio Tinto PLC 18 June 2001 Comalco moves to 38.6% stake in QAL Comalco, a wholly owned subsidiary of Rio Tinto, today announced that it had signed an agreement with Kaiser Aluminum to purchase an additional 8.3% equity in the Queensland Alumina Limited (QAL) refinery at Gladstone. The transaction is subject to certain approvals, including the Foreign Investment Review Board. The total value of the transaction amounts to approximately US$189 million, consisting of approximately US$159 million in cash plus Comalco's assumption of approximately US$30 million of off-balance sheet QAL indebtedness currently guaranteed by Kaiser. The transaction will increase Comalco's interest in QAL from 30.3% to 38.6%. Comalco's CEO, Sam Walsh, said the transaction was a continuing demonstration of Comalco's strong commitment to the Gladstone region. 'Queensland Alumina Limited, one of the largest and lowest-cost alumina refineries in the world, is regarded by Comalco as a core asset,' he said. 'Comalco has been a major shareholder in QAL since its inception and we are very pleased to increase our participation in the Gladstone region's aluminium industry.' Following completion of the transaction in the third quarter of 2001, the new ownership structure of QAL will become: Comalco 38.6% Alcan_____________________________________21.4% Kaiser 20.0% Pechiney__________________________________20.0% For further information, please contact: LONDON AUSTRALIA Media Relations Media Relations Lisa Cullimore George Bujtor + 44 (0) 20 7753 2305 +61 (0) 7 3867 1825 Investor Relations Investor Relations Peter Cunningham Daphne Morros + 44 (0) 20 7753 2401 +61 (0) 3 9283 3639 Jonathan Murrin + 44 (0) 20 7753 2326 Website: www.riotinto.com

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Rio Tinto (RIO)
UK 100

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