The leadership of the National Union of Mine Workers (NUM) signed a memorandum of understanding with striking workers at KDC East mine, Gold Fields said on Friday evening.
Spokesman Billy Jacobs said the memorandum meant that the strike was at an end and workers would resume their duties on Tuesday.
NUM president Senzeni Zokwana said: "It does not necessarily mean that the strike is over, it is just an understanding".
On Friday afternoon, a NUM team met the representatives of the striking workers, but some of the workers did not agree to the conditions.
Zokwana said that some of the workers might have been inebriated because the meeting was held so late, and so another meeting was scheduled for Saturday morning.
At this meeting the team would engage with workers to try to persuade them to accept the terms of the memorandum.
As such, it would be clearer on Saturday whether there was any progress toward ending the strike.
Earlier, another Gold Fields' spokesman Sven Lunsche said the company would continue to support the engagements between the NUM and workers.
The company could decide as early as next week what action could be taken if workers did not return to work.
Workers at Gold Fields have been on a wildcat strike for 11 days, in demand of a monthly salary of R12 500 after deductions.