The benchmark KOSPI gained 0.94% to close at 3,172 on Tuesday, rebounding from a two-day loss as easing trade concerns and regional optimism buoyed sentiment. A US federal appeals court ruled most of President Trump’s global tariffs unlawful for exceeding presidential authority, with enforcement paused until mid-October to allow a Supreme Court appeal. The decision reduced uncertainty around US trade policy and lifted export-oriented stocks. Additional support came from the Shanghai Cooperation Organization summit in Tianjin, where upbeat signals on regional cooperation encouraged risk appetite. Domestically, August inflation eased to 1.7%, a nine-month low, offering a modest supportive backdrop though external drivers set the tone. On the corporate front, semiconductors led the rebound, with Samsung Electronics (+2.22%) and SK Hynix (+1.76%) gaining. Internet firm Naver (+4.41%) also advanced, while Kakao Corp slipped (-3.10%), while automaker Hyundai Motor edged down (-0.23%).