On 5 May 2016, the Brazilian Foreign Trade Council (Camex) issued Resolution No. 42 changing the import tariff on a number of specific goods by including or excluding them from the List of Exceptions to the Common External Tariff (LETEC). Such goods are specified under the Mercosur Common Nomenclature (NCM) product codes.

The import tariff was reduced on the following four goods subsequent to their removal from LETEC: certain preserved peaches (NCM 2008.70.71) reduced from 55% to 35% and bricks (NCM 6902.10.18) reduced from 35% to 10%.

 
List of Exceptions to the Common External Tariff
The tariff codes were included in the List of Exceptions to the Common External Tariff (LETEC) of Mercosur. LETEC is a mechanism that allows member states of Mercosur to apply customs duties that are lower or higher than otherwise listed in the Mercosur Common External Tariff schedule. However, the tariffs shall not surpass the ceilings given by the WTO.
Mercosur Decision CMC no. 26/15 gives Brazil the right to maintain a LETEC of 100 codes based on the NCM until 31 December 2021. Due to this restriction, Brazil had to retrieve a number of other goods, as noted above.
Affected trading partners are identified based on UN Comtrade's import data from 2014.

Update
On 25 October 2018, the Brazilian Foreign Trade Council has adopted Resolution 82 revoking 124 resolutions including this one.