According to the China Trade Remedies Information Network, on December 17, the Mexican Ministry of Economy issued an announcement stating that in view of the applicant's withdrawal of the application, it decided to terminate the second sunset review investigation against ammonium sulphate originating in the United States and end the anti-dumping duties on the products involved. The measures took effect the day after the announcement was issued.

According to the China Trade Remedies Information Network, on December 17, the Mexican Ministry of Economy issued an announcement stating that in view of the applicant's withdrawal of the application, it decided to terminate the second sunset review investigation against ammonium sulphate originating in the United States and end the anti-dumping duties on the products involved. The measures took effect the day after the announcement was issued.