In a speech at South Korea's Yonsei University, Lam urged South Korean companies to keep investing in Vietnam and warned of the risk of fragmenting supply chains. "Vietnam welcomes South Korean enterprises to expand their investments in the country, emphasising substantive cooperation in technology," Lam said.

South Korea and Vietnam pledge stronger trade cooperation to counter U.S. tariffs, aiming to boost economic ties and regional growth.

The two nations have pledged to nearly double bilateral trade and explore closer military ties, with expanded arms sales on the cards.