Question for TIGRAY REGION INVESTMENT OFFICE

HI MY NA ME IS HAILE, I JUST WANT TO INVEST IN SMALL COTTAGE OIL INDUSTRY. THEREFOR MY QUESTIONS ARE
1- HOW MANY EDIBLE OIL PRODUCING COMPANIES ARE THERE ESP. IN TIGRAY ?
2- HOW LONG DOES IT TAKE LICENSING FOR THIS MATTER IN TIGRAY ?
3- WHAT HELP DO I EXPECT FROM REGION GOV. OR INVESTMENT OFFICE ?
4- I"M GOING TO IMPORT THIS SMALL MACHINERY FROM CHINA, SO HOW MUCH IS THE TAXATION ?