By: Matthew Hill
20th November 2007
Mackenzie was previously CE of diamonds and industrial materials at Rio Tinto, which BHP Billiton earlier this month announced an offer to buy for shares.
He had also served petroleum giant BP Petrochemicals for 22 years, last as group vice-president.
Mackenzie’s employment contract with Rio Tinto contained “obligations in relation to a period of notice that he will observe”, BHP Billiton said, adding that no start date has yet been fixed.
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