Government officialsaddedthattheyareinvestigatingaMalaysiancompanythatexported40tonsofsodiumcyanidetoNorth Korealastmonth, amongwhich15tonsaresuspectedtohaveoriginatedin the South.The Korea Herald소리듣기정부 관리들은지난달에시안화나트륨 40톤을북한에수출한말레이시아의한회사를조사하고있는데그중 15톤은한국에서제조된것으로추정되고있다고덧붙였다.