It said operations had been halted since the evening of September 5, with engagement ongoing with unspecified union representatives.
Bushveld said the strike was related to worker pay and structure disagreements prior to its acquisition of Vametco in May last year, when it bought an initial 26.6% stake.
It said union representatives had agreed to urge workers to resume work immediately, on the basis of a commitment between both parties to negotiate and agree an employee share ownership plan during next week.
Bushveld said it hoped for a speedy resolution and resumption of operations.
The company's shares were down 3.62% Friday at 21.7p (US2.8c).