RE:RE:That $500MUnderground life of mine = 13 years starting 2025 to coincide with end of opencast.
Contained carats = 5M
Average revenue price per ct = $725
Underground operating costs (table 1-9) $8.72 per tonne milled or $56.48 per carat produced, giving a total of $285.4M operating costs over 13 years life of u/g mine. Based on 24/7, 365 operation.
Open pit costs taken from Q4 2019 were $31.88 per tonne milled.