Transporters are claiming damages from DAF, Daimler/Mercedes, Iveco, MAN, Scania and Volvo/Renault after they were found guilty of price fixing.
A weaker rand and strong demand in the Northern hemisphere have driven prices upwards.
The oil company has become the first in the industry to achieve Road Transport Management System certification.
Industry feared that the Oshoek Border Post was also going to be closed indefinitely.
Construction work for the refurbishment of the key freight route will start in February.
Engineers have assessed the flood damage to infrastructure during the temporary suspension of operations.
R70 billion will be required over the next five years to bring the rail network infrastructure up to standard.
The association says inspections will ensure that all vehicles are roadworthy and reduce accidents due to mechanical failure.
The political protests also affected the rail corridor between South Africa and Mozambique in recent months.
