South Korea's economy grew 1.0% in the third quarter of 2026, more than triple the Bank of Korea's August forecast of 0.3%, driven by surging demand for AI semiconductors . The year-on-year expansion reached 3.4%, putting the economy on track for its strongest annual growth since 2011 .
Analysts warn that growth remains "heavily concentrated in the semiconductor sector," leaving South Korea vulnerable to a slowdown in global AI spending . The country's current account surplus hit a record $116.6 billion in Q2, exceeding the combined surpluses of Germany and Japan .
Finance Minister Lee Hyoung-il expects full-year 2026 growth of 3.4–3.6%, which would be the best performance since 2011, excluding the pandemic period . The Bank of Korea's advance estimates underscore the economy's reliance on two dominant chipmakers, SK Hynix and Samsung Electronics, which control roughly 80% of the global high-bandwidth memory market .
