Public Enterprises Minister Pravin Gordhan has called on Eskom to be vigilant in checking costs and contracts in a bid to reduce unnecessarily high prices and stop corruption in every step of its supply chain. “We’ve been saying to the Eskom management team that we can’t take these costs for granted. Are you checking what happened in the construction processes? Are you checking the coal contracts? Some coal suppliers make between 75% and 100% profit,” Gordhan told a joint meeting of portfolio committees at Parliament on Tuesday.