Northam Platinum, which owns South Africa's deepest platinum mine, on Wednesday said it has lost an estimated 6500 ounces of platinum group metals production during the week that its mine was closed.
The platinum miner was given the government go-ahead to reopen its mine in the Limpopo Province after it was closed after a miner was killed by rockfall on Tuesday last week.
The company warned that it would lose 1000 ounces of platinum group metals for each day the mine remained closed.
Northam said the mine would be ramped up to full production by next week.
In the meantime, Anglo Platinum has also reopened the three shafts that were closed at its Rustenburg operations after a fatality last week.
Anglo Platinum, which said the closure was costing it 1300 ounces of refined platinum a day, expected to be back to full production by Thursday.
Uncertainty over the duration of South African platinum mine closures helped the platinum price hit an all-time high of $1454 a troy ounce late last week.
At 2pm, the precious metal was trading $11 weaker at $1433.