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Cash and Cash Equivalents
12 Months Ended
Dec. 31, 2022
Cash and cash equivalents [abstract]  
Cash and cash equivalents
21.    CASH AND CASH EQUIVALENTS
United States Dollar
Figures in millions unless otherwise stated20222021
Cash at bank and on hand769.4 524.7 
Total cash and cash equivalents1
769.4 524.7 
1    Cash and cash equivalents include secured cash deposits of US$28.2 million (2021: US$nil) in Australia and US$10.0 million (2021: US$nil) in Peru, set aside for future rehabilitation costs. The contributions in Australia and Peru are pro-active and not legally required by local legislation.