Asian equities traded in narrow ranges as investors awaited President Trump's Iran deadline, dampening risk appetite across the region.
India's Nifty fell 0.5%, Singapore's STI slipped 0.2%, South Korea's KOSPI rose 0.2%, while Australia's ASX200 gained 1.5% on the day.
Oil prices hovered near multi-year highs above $110 per barrel, stoking global inflation fears amid the Middle East standoff.
Samsung Electronics projected an eightfold Q1 operating profit surge on AI chip demand, while LG Electronics reported a rebound in first-quarter earnings.