Emami Biotech, a part of the Rs 2,000-crore Emami Group, will invest Rs 400 crore in a plantation project over five years in Oromia in Ethiopia. The company will engage in plantation of biofuel crops (jatropha) and other edible and non-edible oil seeds on 100,000 acres allotted to Emami Biotech by the Oromia Investment Commission.