The use of more efficient ships and cargo-handling installations in the ports enabled the costs of transporting mineral oil and bulk cargoes to be reduced.
Usetyenziso lwenqanawa yendlela efanelekileyo kunye nokufakwa kokuphathwa kwemithwalo kumazibuko enqanawa ivumela amaxabiso okuhanjiswa kwezimbiwa eziyi-oyile kunye nemithwalo enzima yehle