Samsung SDI is trading 5.45% down at KRW 538,000 after a broad South Korean selloff on September 2, 2026, as renewed U.S.-Iran hostilities lifted oil prices and bond yields, intensifying inflation and risk-aversion concerns.

  • KOSPI fell 3.99%; LG Energy Solution declined 5.31%, supporting a global, sector-wide explanation, not a company-specific catalyst.
  • No fresh company-specific announcement explains the decline; Samsung SDI’s GM Indiana battery-stake news was tied to August 11, not September 2.