Perhaps, it may well be that it could no longer afford to have its IP office online and/or that it has other pressing matters to contend with. (Certainly, Afro Leo is not remotely convinced with any of these assumptions)
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Apparently, China and Burundi are 'true friends' see here
Ethiopia's coffee brand to be promoted in China see here
Ethiopia's coffee brand to be promoted in China see here
Burundi's revenue from tea exports rose by 11% see here