No final resolution has been reached in wage discussions between Eskom and the National Union of Mineworkers, the union said on Friday.

"Yesterday [Thursday] we finished late in the evening. This is not the final round of negotiations. We will continue the week after next," said NUM energy sector coordinator Job Matsepe.

He added that the union would not go on strike unless negotiations reached an impasse.

Matsepe said Eskom had offered a seven percent increment.

This was a renewed offer, after NUM rejected a five-and-a-half percent increase on Wednesday evening.

The union was demanding 16 percent.

Additional points of contention were the issue of a minimum service level agreement and Eskom's shift from a defined benefit pension scheme to a defined contribution scheme.

A defined benefit scheme ensures a certain payout at retirement, while in a defined contribution plan the amount is dependent on the amount contributed as well as investment performance.

Eskom said it would comment on the matter later in the day.

On Thursday, Eskom said the normal route of negotiations would be followed.