In an era when global supply chains are fracturing and old alliances are being redrawn, South Korean President Lee Jae-myung has arrived in South America carrying a proposition older than diplomacy itself: that two parties with complementary strengths are stronger together than apart. Touring Brazil, Chile, and Argentina, Lee is pressing to transform a relationship long defined by the exchange of raw materials for finished goods into something more reciprocal — a partnership built on shared technology, investment, and the minerals that will power the next century's industries. The visit reflec