fish 
1.2 billion dollars industryThe business plan of the future is export fish one plane a week and grow to the point of export a plane a day....
Just that plane the Somalia brothers (brilliant) shipping from Mogadishu to Addis is 5000 tons at $1500 that’s about 7.5 million dollars let’s say pay taxes, labor, transportation... other expenses totaling 2.5 million....5.0 million in profits
Eritrea can do this 5 million dollars in 20 working days 100 million dollars a month business... oh my Goodness... Eritrea is blessed beyond imagination
Monday Addis
Tuesday Dubai
Wednesday Jedda
Thursday Rome
Friday Amsterdam
The sky is the limit
Starting capital fishing boats, a small cargo plane, fishermen, fishing gears, cold storage facility,...
Tourism is another one with similar profit (if not bigger)