Top leaders of South Korea and Vietnam have agreed to boost trade, as the two export-dependent countries look to mitigate the impact of US tariffs. President Lee Jae Myung is hosting To Lam, the chief of Vietnam's ruling Communist Party. Seoul and Hanoi have inked several agreements, on nuclear and renewable energy, as well as infrastructure development. South Korean companies have historically been the biggest investors in Vietnam. As of last year, they have poured in US$92 billion — mainly in