Johannesburg - Trade unions Satawu and Nehawu on Wednesday expressed shock at the appointment of former Limpopo roads and transport head Ntau Letebele as new CEO of Great North Transport.
"We view this decision as rather a perpetuation of flagrant forms of grafts that have been witnessed in the province," SA Transport and Allied Workers Union provincial secretary Paul Nephawe said in a statement.
It demanded that GTN's board reverse the decision as it only served the interests of "provincial cronyism".
Failing this Satawu members would go on strike.
Earlier this week, The Star reported that Letebele had been appointed GNT's new chief executive. GNT is a subsidiary of the Limpopo economic development agency, a provincial government entity.
Letebele, who is under an internal investigation over a multi-million rand tender, resigned as head of the Limpopo roads and transport department earlier this month.
The tender allegedly partly benefited former ANC Youth League leader Julius Malema.
The resignation came days after the announcement of an investigation into the awarding of a R53m contract to On-Point Engineering. Malema's business partner Lesiba Gwangwa is chief executive of On-Point.
In October, Public Protector Thuli Madonsela found Letebele's conduct in awarding the bid to On-Point "improper, and constituted maladministration".
Madonsela found the department's awarding of tenders to On-Point Engineering unlawful. She found On-Point and Malema benefited improperly from the contract.
The National Education, Health and Allied Workers' Union (Nehawu) called for Letebele's appointment to be revoked, and for Limpopo economic development MEC Pinky Kekana to be investigated.
"She has proven to be an unreliable and capricious individual who cannot be entrusted with such a serious position," Nehawu provincial secretary Jacob Adams said in a statement.
"It is disturbing how brazen this cabal is with their contempt for the law. This public display of conceit would be laughable if it were not so tragic for the workers and people of the province, who are subjected [to] this kind of corruption, factionalism and nepotism."
He said it was time for the ANC to prove it did not associate itself with incompetence and corruption.