When President Trump and North Korean leader Kim Jong-un sat down for their brief conversation on Wednesday evening, one of the issues raised was the economic potential of North Korea. <br /> Reflecting their interest in overhauling the regime's economy,...Kim's top foreign policy and economic aides visited several high-tech factories in Vietnam earlier in the day. <br />Officials including Ri Su-yong, who heads Pyeongyang's International Department and O Su-yong, the regime's top economic policymaker, went to the industrial port town of Haiphong.<br />They toured an automotive manufacturer called VinFast...a member of Vingroup,... one of the largest private enterprises in the Southeast Asian country.<br />Analysts say this signals Kim's interest in Vietnam's economic reform model. <br />