The U.S. Department of Agriculture’s (USDA) Agricultural Marketing Service (AMS) and Mexico’s National Service for Animal and Plant Health, Food Safety and Quality (SENASICA) are committed to increasing transparency and strengthening monitoring and enforcement controls for organic products traded between the two countries. One important mechanism for achieving this goal is the use of import certificates.
In October 2016, USDA and SENASICA established an agreement to require import certificates for all organic products traded between the United States and Mexico.
On Jan. 16, 2017, the new requirement will become effective for all products entering the United States from Mexico, and these products must be accompanied by a National Organic Program (NOP) import certificate. Mexico will implement its own requirement for organic products entering Mexico from the United States in early 2017.
I was not able to find import information of organic products into Mexico. Probably because it is "one way" due to the demand for organic products in the US and lack of demand in Mexico. An interesting discussion can be found by clicking here.