Which blockchain projects with their own altcoins are shaking up African economy?? I only know about Kora Network (
https://kora.network/tokensale.html/), they're using blockchain to offer financial services (lending, credit, etc) to rural and impoverished people in the continent
What about Moya network? But it looks like the African economy doesn't give a lot of the contribution to the global affect. Moya is working on the different field. you can try to visit its announcement page on bitcoin talk.
I guess Moya ico has already ended too.