American sugar producers are seeking to curb imports from Mexico after the US said it would examine whether some shipments from the Latin American nation breached trade deal rules.

The American Sugar Coalition wants the government to lower the amount of sugar Mexico is allowed to send to the US by 44%, according to a March 12 letter sent to Secretary of Commerce Gina Raimondo. The curbs would be effective from April 1 and apply to the year ending in September.