Joseph Mathunjwa, the leader of the Association of Mine workers and Construction Union (AMCU), has called for Mr Zuma to take a lead in resolving the situation.
Mining accounts for about 20% of South Africa's national output and the country is home to 80% of known reserves of platinum.
The price of the element, which has a wide range of industrial and medical uses, has gained nearly 20% since the police shootings at Lonmin's Marikana mine.
Shares in both Anglo American and Lonmin have been hit by the miners' actions.
- BBC






