"EOAS" ni izina rifitanye isano n'amavuta y'ibirungo kuva mu 1894. Kuva mu 1999, EOAS yashyizwe mu isoko rikomeye ryohereza amavuta y'ingenzi muri Sri Lanka. Kuva mu mwaka wa 2017, EOAS ifite ubwoko bushya bw'amata y'ibitoki mu macupa. DTS itanga ibikoresho bivuye mu byuma bisukura, ibiryo bishyushya, ibyuma bisukura, ibirahuri n'ibindi. DTS yiyemeje gufasha inganda zo muri Sri Lanka kwikura mu maboko yazo no gutanga ibicuruzwa byiza kugira ngo byagure amasoko yazo.
