The judicial commission of inquiry into state capture is expected to hear aviation-related testimony on Monday when senior South African Airways (SAA) officials appear before it.
Head of fuel management, Mark Vaughan, and airport co-ordinator for SA Express, Estelle Loock, are expected to testify.
The commission is also expected to hear testimony from Kalandra Viljoen, the director of Asset Movement Financial Services.
Earlier this month, the commission heard that BnP Capital, the little-known firm which SAA contracted in mid-2016 for a R15bn loan, was privy to confidential briefings about the state of the airline's finances.