It's a two-horse race between Nkosizana Dlamini Zuma and Cyril Ramaphosa for ANC presidency.
ANC delegates are expected to their votes for the top six position at the Nasrec Centre on Sunday night.
The election agency is preparing ballot papers and once the process is finished voting will start.
The nominations for the top six have been finalised and the voting process is underway.
The nomination are as follows:
ANC President
Nkosazana Dlamini Zuma was nominated by 1094 branches and Cyril Ramaphosa by 1469 branches.
Deputy President
David Mabuza 1128 and Lindiwe Sisulu 619
National chairperson
Gwede Mantashe 1499) and Nathi Mthethwa 804
Secretary-general
Senzo Mchunu 1479 and Ace Magashule 930
Deputy secretary general
Jessie Duarte 845 and Zingiswa Losi 361
Treasurer general
Paul Mashatile 1581 and Maite Nkoana-Mashabane