Trade union Uasa has signed a five-year wage agreement with the management of the Cullinan mine, which is owned by London-listed Petra Diamonds.

The agreement is effective from July 1 this year to July 1, 2028, stipulating a 5.5% or consumer price inflation (CPI) increase for entry level, or C lower, employees for the first three years and a 6% increase in years four and five.