Refinancing Presentation

Debt maturity profile significantly extended Former Debt Maturity (US$ million) Revolver Facility1 $50 $50 $350 Existing Senior Notes $300 Current Debt Maturity (US$ million) Revolver Facility $140 New Senior Secured Notes $300 Existing Senior Notes $300 2013 2014 2015 2016 2017 2018 2021 2013 2014 2015 2016 2017 2018 2021 No maturity prior to 2016 1 Scheduled reductions in commitments in 2014 and 2015 under bank loan facility (per amendment dated 29 June 2013) BOART LONGYEAR" Refinancing Presentation - October 2013. CO 6

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