Rustenburg - Anglo Platinum [JSE:AMS] (Amplats) will not consider striking workers' wage demands, CEO Chris Griffith said on Wednesday.
"It will be irrational as it is outside any form of bargaining," he told reporters in Rustenburg.
"We urge our workers to return to work and use recognised structures to present their demands."
He said the mine had an agreement with the union, ending in June next year.
"We will be renegotiating wages in six months' time."
Workers should return to work on Thursday, or face disciplinary measures that might lead to dismissal.
"I am making a personal appeal for all striking employees to return to work immediately.
"If our employees do not heed this call, we will simply have no choice but to begin disciplinary action tomorrow [Thursday] against any employees who remain on strike, and that action could lead to dismissal."
Workers at Amplats' Rustenburg operations went on a wildcat strike two weeks ago, demanding a R16 000 salary before deductions.
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