South Korea’s government and major companies announce large investments to expand semiconductor and AI infrastructure beyond the Seoul area, focusing on a new semiconductor complex in the southwestern Honam region and parallel AI data center plans. The centerpiece is an 800 trillion won ($585 billion) semiconductor complex led by Samsung Electronics and SK hynix, with each company building two memory chip fabs in the southwest. The government also plans AI data centers backed by 550 trillion won from SK Group, GS Group and Naver, starting with 8.4 gigawatts of capacity and expanding to 18.4 gigawatts by 2035. The plan is part of the “three flagship megaprojects” initiative covering semiconductors, physical AI and AI data centers, aimed at strengthening Korea’s capacity to meet rising AI demand. Reports also note skepticism about whether the southwest has enough electricity supply and broader infrastructure, workforce and utilities to support the new fabs; a presidential official dismisses those concerns and cites the region’s potential advantages, while industry leaders emphasize the need for sufficient power, water and skilled workers. Separately, the tripolar approach includes complementary roles for other regions, such as semiconductor packaging in central Chungcheong and additional industry investment projects in the southeast.