Sri Lanka Exports of potroleum resins, coumarone-indene resins, polyterpenes, polysulfides to Vietnam was US$435 during 2016, according to the United Nations COMTRADE database on international trade. Sri Lanka Exports of potroleum resins, coumarone-indene resins, polyterpenes, polysulfides to Vietnam - data, historical chart and statistics - was last updated on February of 2026.