Efficient industrial technology of unsaturated fatty acid ethyl esters mixture production, with significant share (above 80%) of alfa-linoleic fatty acid ethyl ester (Omega-3). The resulting product will be utilized as an ingredient of among others: foodstuffs, food additives, supplements, medicines, cosmetics, fuel additives, dye additives and animal feed additives. By-product of process could be utilized as a fertilizer.