Registered under "Flags of Convenience", many tankers are manned by unskilled low-paid labour from the underdeveloped countries in order to increase the profit margins.
Ezibhaliswe phantsi ``kweeflegi eziluncedo'', iinqanawa ezininzi zokuthutha ipebroyile zixhotyiswa/zenziwa ngabasebenzi abangenabuchule ababhatalwa kancinci besuka kumazwe angekhulanga ngokwaneleyo ukuze kunyase umakhluko phakathi kweendleko nongeniselo.