Exxaro is a South Africa-based mining group, listed on the Johannesburg Stock Exchange (JSE), a constituent of the JSE's Top 40 index and one of the best performing constituents of the JSE's Socially Responsible Investment (SRI) index. At 31 December 2011, Exxaro had assets of R37 billion and a market capitalization of R60 billion ($7 billion). Exxaro has a diverse and world-class commodity portfolio in coal and ferroalloys, and growing exposure to iron ore.