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Petra Diamonds Limited Sustainability Report 20125OVERVIEWOverviewOur operations Petra's OPERATIONSTanzaniaBotswana (exploration)South AfricaThe Petra Group encompassed 4,768 permanent employees and 807 contractors as at 30 June 2012.CullinanThe world's most celebrated diamond mineKEY FACTS$ Renowned for large, top quality gem diamonds - has produced over 750 diamonds of +100 carats and a quarter of all diamonds of +400 carats - and only reliable source of highly prized, rare blue diamonds$ Production of 867,780 carats and revenue of US$112.0 million in FY 2012$ 1,120 people: 1,081 employees and 39 contractors$ Petra ownership 74%; BEE partners 26% (14% Thembinkosi Mining Investments (Pty) Ltd, 12% Petra Diamonds Employee Share Trust)FinschA major producer with world-class infrastructureKEY FACTS$ Finsch produces a number of +50 carat stones annually$ Production of 1,104,618 carats and revenue of US$136.9 million in FY 2012$ 816 people: 762 employees, 54 contractors$ Petra ownership 74%; BEE partners 26% (21% Senakha Diamonds Investments (Pty) Ltd, 5% Petra Diamonds Employee Share Trust)KoffiefonteinOne of the world's top kimberlite mines by diamond valueKEY FACTS$ Regularly produces exceptional white diamonds of between five and 30 carats in size$ Production of 40,117 carats and revenue of US$18.9 million in FY 2012$ 521 people: 460 employees, 61 contractors$ Petra ownership 74%; BEE partners 26% (Re Teng Diamonds (Pty) Ltd)

Petra Diamonds Limited Sustainability Report 20126OVERVIEWOverviewOur operations continuedKimberley UndergroundOperation comprises Bultfontein, Dutoitspan and Wesselton kimberlite pipesKEY FACTS$ Historic source of large diamonds and fancy yellows$ Production of 68,422 carats and revenue of US$19.8 million in FY 2012$ 581 people: 581 employees and 0 contractors$ Petra ownership 74%; BEE partners 26% (Sedibeng Mining (Pty) Ltd)Petra Diamonds BotswanaBotswana is the world's largest diamond producer by valueKEY FACTS$ Petra holds 12,725km² of diamond exploration ground$ US$3.0 million exploration spend in FY 2012$ 11 people: eight employees and three contractorsWilliamsonTanzania's most important diamond producerKEY FACTS$ Renowned for high value white and 'bubblegum' pink diamonds$ Production of 57,050 carats and revenue of US$11.6 million in FY 2012$ 1,201 people: 563 employees, 638 contractors$ Petra ownership 75%; United Government of the Republic of Tanzania 25%Other DepartmentsKEY FACTS$ Petra has, along with its BEE partners, commenced a public disposal process in respect of the Fissure Mines, as they are no longer core to the Group's portfolio$ Production of 70,874 carats and revenue of US$17.7 million in FY 2012$ 1,219 people: 1,209 employees and ten contractors$ Helam ownership: Petra 74%, BEE partner 26% (Sedibeng Mining (Pty) Ltd)$ Sedibeng ownership: Petra 74.5%, 25.5% BEE partner (Sedibeng Mining (Pty) Ltd 17.85% and Bokone Properties (Pty) Ltd 7.65%)$ Star ownership: Petra 74%, BEE partner 26% (Sedibeng Mining (Pty) Ltd)Sorting, Marketing and SalesKEY FACTS$ Petra sorts its rough diamonds mined in Tanzania and South Africa$ Sales tenders are carried out in both South Africa (Johannesburg) and Belgium (Antwerp)Group/Corporate/Central Technical and Operations SupportKEY FACTS$ Petra is headquartered in Jersey, with administrative offices also in Johannesburg and London $ US$10.0 million corporate overhead spend in FY 2012Fissure MinesPortfolio of three mines (Helam, Sedibeng and Star)