Brazil and Mexico are their own, an item would only get [LAT] if released in multiple Central/South American countries that do not include Mexico or Brazil.
So, if a game is released in Mexico and other countries, should it include every country in the region, or only Mexico?
Should this entry be [AR][BO][CL][CO][CR][EC][SV][GT][HN][MX][NI][PA][PY][PE][UY]?
https://vgcollect.com/item/163231EDIT:
There's also something related. Some entries have text in Portuguese, but ESRB instead of ClassInd rating, so I can't determine if they were sold in Brazil. What should be the procedure in that case?