China’s Ministry of Commerce (MOFCOM) said on Monday it has made a preliminary ruling that imports of pecan (Carya illinoensis) from Mexico and the US are being dumped, causing material injury to China’s domestic pecan industry.

The investigation follows Mexico’s maximum 50% tariff hike on about 1,400 product categories, imposed under pressure from Washington.

In a significant trade move, China unveiled stringent tariffs on imported pecans from both the United States and Mexico. Mexican pecans will be burdened with tariffs ranging from…