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'''BHP Billiton''' (BHPB) is an international mining firm which describes itself as "the world's largest diversified resources company." It mainly deals in minerals and petrochemicals, but also is one of the world's leading exporters of "thermal coal," i.e. coal used for power generation.<ref>[http://www.bhpbilliton.com/bb/ourBusinesses/energyCoal.jsp "Energy Coal,"] BHP Billiton website, accessed 3/08</ref> In 2006, BHPB's profits exceeded US$10 billion.