The won weakened past 1450 per dollar on February 28, its first move above that level in two weeks. The move was attributed to safe-haven dollar demand driven by new Trump tariff threats and a widening Korea-US rate gap after the BOK cut.
A weaker won raises the cost of dollar-denominated feed and grain imports for Korean buyers, and a firmer dollar tends to pressure dollar-priced commodities.
Not enough comparable past events yet for a historical read.
After 2,356 past bullish macro events, US Dollar (Broad) moved a median +0.2% over 5 sessions (60% higher; middle half -0.3% to +0.7%), and +0.4% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.