South Korean memory giants Samsung and SK Hynix are poised to announce significant long-term supply deals and strategic partnerships with leading U.S. tech companies during President Lee Jae Myung’s visit to the San Francisco AI summit. These deals, involving "very large sums," are expected to cover memory chips and convert a portion of South Korea's recent $880 billion AI investment plan into concrete projects. U.S. companies currently account for 80-90% of underlying orders driving South Korea's domestic chip production expansion.