Judge Hamilton Cele is expected to deliver judgment following an application by the Chamber of Mines to prevent a strike at the country’s gold mines.
The union members and their supporters wore green Amcu t-shirts, and sang revolutionary songs at the court entrance.
“Foward with a living wage for miners, forward!” screamed a man who led them in song.
They carried placards and Amcu flags, and waved them as they sang.
The Association of Mineworkers and Construction Union intends to strike in the gold sector after issuing employers with strike notices.
The union wants an entry-level monthly salary of R12,500.
Strikes are scheduled to take place at Sibanye Gold’s Driefontein Mine, Harmony Gold’s Kusasalethu and Masimong mines, and at all AngloGold Ashanti’s South African operations.
Gold producers, represented by the Chamber of Mines, have challenged the legality of the strike, and are seeking damages from the union.