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Commitments (Tables)
 12 Months Ended
Dec. 31, 2018
Text block [abstract]  
Schedule of Commitments

COMMITMENTS		         
   Capital expenditure         
   Contracted for      50.0        44.5     
   Operating leases2         
   – within one year      76.7        66.6     
   – later than one and not later than five years      256.5        257.9     
   – later than five years      324.2        448.0     

2 

The operating lease commitments consist mainly of power purchase agreements entered into at Tarkwa, Damang, Granny Smith and Gruyere. Included in these amounts are payments for non-lease elements of the arrangement.