Below are the 15 countries that exported the highest dollar value worth of corn during 2018.
http://www.worldstopexports.com/corn-exports-country/
The listed 15 countries shipped 92.3% of global corn exports in 2018 by value
World Leaders In Corn (Maize) Production, By Country
https://www.worldatlas.com/articles/world-leaders-in-corn-maize-production-by-country.html
Below are the 15 countries that exported the highest dollar value worth of soya beans during 2018.
http://www.worldstopexports.com/soya-beans-exports-country/
The listed 15 countries shipped 99.2% of global soya beans exports in 2018 by value.
10 Countries With LargestSoybeanProduction
https://www.worldatlas.com/articles/world-leaders-in-soya-soybean-production-by-country.html