Trade union Uasa has signed a five-year wage agreement with the management of the Cullinan mine, owned by London-listed Petra Diamonds. The agreement, effective from July 1, 2023, to July 1, 2028, stipulates a 5.5% or consumer price inflation (CPI) increase for entry-level (C Lower) employees for the first three years and a 6% increase in years four and five. C Upper employees will receive a 5% or CPI increase annually for the first three