The South Korean won remained near a two-year high against the U.S. dollar despite pressure from higher oil prices, weaker Korean shares and rising U.S. Treasury yields. The rate closed at 1,339.2 won in Seoul on the 10th, up 3.1 won, or 0.23%, from the previous session, while a later market update placed it around 1,346 per dollar. Brent crude rose above $107 a barrel amid escalating U.S.-Iran tensions, and the U.S. 10-year Treasury yield approached 5% after stronger producer inflation increased bets on a Federal Reserve rate hike next week. South Korean inflation remained above the Bank of Korea's target, while exports surged in September's first 10 days, led by semiconductors.