China has restricted fertiliser exports, banning shipments of nitrogen-potassium blends and certain phosphate varieties in mid-March. Only a handful of products such as ammonium sulphate can now be exported on top of existing urea bans and quotas.
Reuters estimates between half and three quarters of China's prior-year exports are now restricted, up to 40 million tons.
China is a major fertiliser exporter, and the loss of these tons on top of Hormuz disruption tightens global nitrogen and phosphate supply, supporting higher urea and phosphate prices that raise feed grain production costs.
After 129 past bullish policy events, Urea moved a median -0.1% over 5 sessions (47% higher; middle half -1.3% to +2.3%), and +1.4% over 20.
After 151 past bullish policy events, DAP moved a median +0.0% over 5 sessions (50% higher; middle half -0.6% to +0.9%), and +1.9% over 20.
Not enough comparable past events yet for a historical read.
After 318 past bullish policy events, Corn moved a median -0.1% over 5 sessions (48% higher; middle half -1.4% to +1.5%), and -0.2% 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.
China's mid-March ban on certain phosphate exports cuts export availability, tightening DAP supply, though the news came a week before the move and was likely partly priced in.