Is Kazakhstan Really Number One Exporter of Potassium?

So I was looking up the Kazakh national anthem, and I came across the parody of the Kazakh anthem from the movie Borat.
And that raises the question: Is Kazakhstan Really Number One Exporter of Potassium?

~~Sources~~
Original video:    • Real full Version!-Stereo sound -subtitles...  
Potassium chloride exports:https://knoema.com/atlas/topics/Agric...
Potassium sulfate exports: https://knoema.com/atlas/topics/Agric...
How much potassium is in a banana: https://www.livescience.com/45005-ban...
India banana production: https://www.whichcountry.co/top-10-la...
How much potassium is in spinach: https://healthyeating.sfgate.com/much...
How much spinach China produces: https://www.whichcountry.co/spinach-p...

~~Images~~
Banana : Evan-Amos
Belarus: Dmitriy-5-Averin
China: Nuclear Vaccuum
India, Kazakhstan: Stasyan117
Potassium Sulfate: Rasbak

~~Video~~
Chinese Flag: Videvo

~~Music~~
0:00, 0:38 Kazakh National Anthem - Meniń Qazaqstanym
0:14 Kazakhstan You very Nice Place
1:38 State Anthem of the Kazakh Soviet Socialist Republic
2:36 National Anthem of the People's Republic of China - March of the Volunteers

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