Eskom has requested the cooperation of McKinsey and Trillian as it aims to recover money it unlawfully paid to the two firms.
In a statement released on Thursday, the power utility admitted that interim reports from Eskom investigations into the circumstances surrounding payments, point to certain decisions by the utility, and resultant payments as being unlawful.
In the report seen by Eyewitness News, the power utility obliged to act to try and set aside the unlawful contract it entered into with McKinsey.
Gupta-linked Trillian was also paid as a "sub-contractor" although there was no provision for this in the contract.
Commenting on the issue Stephen Grootes says the corrupt activity revealed at Eskom is a tragedy.
We talking about over a billion and a half rand here. This is, I would call it generational money...— Stephen Grootes, 702 anchor and Eyewitness News reporter
Basically if you are in the top management at Eksom, unless you resign you must be corrupt. I cannot see it any other way.— Stephen Grootes, 702 anchor and Eyewitness News reporter
The mentioned internal report detailing the utility's actions was handed to Minister Lynne Brown on 1 September, although she says she only received the final version on Monday.
Minister stop lying to us, we can see from the situation around Eskom, the situation around you. You must be as captured as Mosebenzi Zwane.— Stephen Grootes, 702 anchor and Eyewitness News reporter