ɪn tˈuː θˈaʊzənd nˈaɪn, mˈaɪnɪŋ dʒˈaɪənt ɹˈiːoʊ tˈɪntoʊ dᵻklˈaɪnd ɐ kˈɑːntəmplˌeɪɾᵻd dˈiːl ɪnwˌɪtʃ tʃˈælkoʊ wʊd pˈeɪ dˈɑːlɚ nˈaɪntiːn.fˈaɪv bˈɪliən ɪn ˈɔːɹdɚ tʊ ɪŋkɹˈiːs ɪts stˈeɪk ɪn ɹˈiːoʊ tˈɪntoʊ.
In 2009, mining giant Rio Tinto declined a contemplated deal in which Chalco would pay $19.5 billion in order to increase its stake in Rio Tinto.