Mr. Bristow also made it clear that he will not be rushed into any fire sale of the company's various non-core mines. In November, Barrick said it was in talks to sell its Lagunas Norte gold mine in Peru and that an announcement was possible before the end of last year. But on Wednesday Mr. Bristow said that while still possible, a sale of Lagunas is no longer imminent as he conducts his own review of Barrick's portfolio of mines.