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Petra Diamonds : ウィキペディア英語版 | Petra Diamonds
Petra Diamonds Ltd is a diamond mining group headquartered in Jersey. It has a diversified portfolio, with interests in eight producing mines in South Africa and Tanzania and an exploration programme in Botswana. Petra Diamonds' focus has shifted from exploration to production, becoming one of the largest independent producers of diamonds in Africa. In June 2012, Petra owns 5 of the world's most productive mines historically. These mines include the Cullinan Diamond Mine famed for having produced the world's largest rough and polished diamond. Petra is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index. == History== Petra Diamonds was founded by Adonis Pouroulis in 1997 and was first listed on the Alternative Investment Market later that year.〔(Johan Dippenaar: Prices for both rough and polished are performing well currently and we believe that the longer-term fundamentals of the market are robust ) Rough & Polished, 27 June 2011〕 It transferred to the Main Market in December 2011.〔(Petra Diamonds shares begin Main Market trading ) Mining Journal, 21 December 2011〕
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