Mexico Fertilizer Tariffs Hit Chinese Ammonium Sulfate at US$149 a Tonne
Mexico locked in a definitive anti-dumping duty on Chinese ammonium sulfate days after China hit Mexican pecans, adding to a widening trade rift. The post Mexico Fertilizer Tariffs Hit Chinese Ammonium Sulfate at US$149 a Tonne appeared first on The Rio Times .
Mexico imposed a definitive anti-dumping duty of US$0.1488 per kilogram (approximately US$149 per tonne) on ammonium sulfate fertilizer imported from China, effective August 14, 2026. This measure came just days after China levied anti-dumping levies on Mexican pecans, hinting at a potential trade dispute between the two nations.
The duty targets ammonium sulfate, a nitrogen-and-sulfur fertilizer, under customs line 3102.21.01, as the product is imported at below fair value. The investigation into the fertilizer trade began in February 2025, preceding the pecan dispute that emerged in August 2026. China's commerce ministry had announced preliminary anti-dumping duties on Mexican pecans and U.S. pecans on August 10, 2026, with rates ranging from 17.8% to 51.6%.
The fertilizer duty is part of a broader tariff shift, as Mexico raised tariffs on roughly 1,463 product lines from non-free trade agreement countries on December 29, 2025, effective January 1, 2026. The move aims to protect local industries, foster alignment with the United States, and signal a reluctance to serve as a conduit for Chinese imports into North America.
Written by urgent.news from The Rio Times's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.