The country's No.1 gold producer says the "brief" spill affecting the operation has already been halted and blamed vandals for destroying or stealing sections of the pipe it uses to move waste water.
Foreign platinum and diamond miners have been restricted to only 49 percent ownership of their Zimbabwe operations by the black economic empowerment law.
Zimbabwe holds the world’s second-largest known reserves of platinum-group metals after South Africa, plus substantial deposits of gold, diamonds, lithium, iron ore, coal, chrome and nickel.