South Korean President Lee Jae-myung is nearing the end of the longest overseas trip of his 14-month presidency, an 11-day swing that carried him from Silicon Valley’s technology corridor to the mineral-rich economies of South America. Brazil and Argentina anchor Mercosur, the four-nation South American trade bloc that also includes Paraguay and Uruguay. Kim Yong-beom, the policy chief for Lee, said the meetings were meant to advance South Korea’s three flagship megaprojects – a government investment push spanning semiconductors, AI data centers and physical AI that Lee announced earlier in his term. On July 29, Lee arrived in Santiago, Chile, becoming the first South Korean president to visit Chile since Park’s South America tour 11 years ago. It’s the first bilateral visit by a Korean president to Argentina in 22 years.