"The agreement is in line with current mining inflation of (about) 6.5% and considers the reality of sustained inflationary pressures faced by our employees," Impala said in a statement, adding that the wage deal takes effect on 1 July.
The pay deal covers increases in basic salaries, living-out and home-ownership allowances, medical aid and pension fund contributions, the company said, without providing specific figures.
Impala said the agreement secures five years of stability at its operations in South Africa, a country where strikes have often interrupted mine production.
Last month, Anglo American Platinum also agreed to a five-year pay deal with unions.
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