A PIIE blog analyses China's use of trade sanctions, citing antidumping duties of up to 212% on Australian wine announced November 28, 2020. It argues China has used trade measures for years, including against Australia after it sought a coronavirus origin investigation.
The piece is commentary on policy rather than a new agricultural trade action.
Broader Chinese willingness to use trade restrictions raises the risk of further import curbs on agricultural goods, a background risk for feed commodity buyers but with no direct price move.
Not enough comparable past events yet for a historical read.
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.