Strike action at Harmony Gold Mining Co. Ltd.'s Kusasalethu gold mine in South Africa is still ongoing even though an ultimatum set by the company expired the evening of April 4, a spokeswoman for the company told S&P Global Market Intelligence on the sidelines of the European Gold Forum in Zurich.

Marian van der Walt said the company was in active discussions with South Africa's Association of Mineworkers and Construction Union, or AMCU, and a meeting with the union's president, Joseph Mathunjwa, was set to take place "within the next day or two."

"At the moment we are still gathering feedback," she said, adding that this was taking place at the employee level.

The company has lost more than 10 days of gold output due to the illegal labor action, which was initiated in response to disciplinary action against 40 employees for the January sit-in at Kusasalethu.

No employees reported for work over the weekend or April 3, ignoring a Labour Court of South Africa order, which declared the ongoing labor action "unprotected."