LEEN develop and accurate and realitic feasibility study, analysis skills for costing and studies of negative and positive social and environmental impact. LEEN during last years developed around For example Feasibility for Tecnomass company for 5000 Fadden Mango, Fodders and strawberry. feasibilty study for Daking company for 5000 fadden for Grapfurits, Fodders and guar gums. LEEN farm feasibility study for livestocks and agriculture in Soba - Khartoum and North Sudan