June 26 (Reuters) - MISC :
* says unit AET Inc Ltd signed contract with Korea's Samsung Heavy Industries to buy four new Suezmax tankers at $67.8 million each.
* says four 158,500 dwt tankers will be delivered between April and October 2012. * "This will enable AET, the petroleum tanker arm of MISC Berhad, to deliver a more comprehensive global oil transportation services to its customers in the petroleum shipping industry," MISC said in a statement late on Friday.