Organised labour: Eskom’s decision to file for dispute is a declaration of war The unions have been in talks with Eskom for weeks with both parties not moving from their demands. Numsa and Cosatu joined a march by the National Union of Mineworkers over Eskom's agreement with Independent Power Producers, on 17 November 2018. Picture: @Numsa_Media/Twitter 3 hours ago JOHANNESBURG - Organised labour at Eskom have described the power utility’s decision to file for a dispute after wage negotiations deadlocked as a “declaration of war”. The unions have been in talks with Eskom for weeks, with both parties not moving from their demands.