How much import tax is there on goods imported to Ethiopia? Is this the same for goods coming from other African countries?

Is there a 100% import tax on goods imported to Ethiopia? If yes, is this also true for cooperatives / development projects? If yes, would this also be true if the imports came from another African country, let’s say Kenya for example?  If yes, is there any other way to avoid the import tax?
Thanks,
 
Becx