Thembinkosi Bonakele says Shan Ramburuth’s departure will not affect the commission’s work.
Public Works Dept launched its own investigation into the bid-rigging scandal.
Roger Jardine earlier announced his resignation, shortly after emerging from the construction sector scandal.
Aveng CEO Roger Jardine has announced his resignation after five years at the helm.
Union UASA is worried construction firms implicated in collusion will fire workers to pay fines.
Construction companies involved in collusion await ruling.