Key economic price assumptions

Key economic price assumptions

 

 

9 Year Mine Plan  
Key Assumptions Unit Total 2018 2019 2020 2021 2022 2023 2024 2025 2026
Ore mined/treated mt 32.4 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6
Waste mined mt 29.0 2.8 6.3 6.3 6.9 3.4 2.7 0.5 0.1
Total mined mt 61.4 6.4 9.9 9.9 10.5 7.0 6.3 4.1 3.7 3.6
Average strip ratio waste/ore 0.9 0.8 1.8 1.8 1.9 1.0 0.7 0.1
Recovered grade cpht 23.5 23.7 23.9 27.0 27.0 24.0 20.1 21.1 20.7 24.3
                       
Annual Production (Ave.) mcts pa                    
Total carats million 7.7 0.9 0.9 1.0 1.0 0.9 0.7 0.7 0.7 0.9
                       
Opex cost ZAR/t treated 175.5 186.2 198.7 199.0 204.9 176.9 170.7 151.1 144.6 144.1
Opex cost US$/t treated 13.0 13.8 14.7 14.7 15.2 13.1 12.7 11.2 10.7 10.7
Steady state operating exp US£/carat 55.2 58.3 61.6 54.5 56.2 54.7 62.8 53.1 51.7 44.0
                       

 

The Company retains full optionality in the medium-term to revert to a mine plan with greater ore mined and carats recovered, optimising value subject to an increase in realised prices.