Arrests were made after violent protests broke out in Ficksburg, leading to the blocking of the R26 "Maluti Road."
South African poultry producers are hoping that the government will view them as favourably as the potato producers.
Police are monitoring the situation in the town but schools were advised to remain closed on Friday.
Grand corruption case involved the alleged purchase of shipping fleets.
Organised syndicate member believed to among arrested suspects.
Sawatu is calling the privatisation a Trojan horse for mass retrenchment.
Several reports of protest action led to road closures on Thursday.
High numbers of injuries and fatalities of crew members have made seafarers fearful of launching lifeboats.
According to the ship owner's statement on Monday, the six kidnapped crew members were rescued in Nigeria.
Captain Knowledge Bengu, commander of the SA Agulhas II, faced the challenge of studying while on long sea voyages.