Oil extraction is the first step for further oil application even in biodiesel production. Expelling is the most common physic process in industry, which reduces the usage of chemicals that might cause the negative impact on environment even on final products. Soybean oil is the most common materials in oil industry not only for food application but in biodiesel industry. Other co-products including soybean meal and soybean hulls can be used as animal feeds. Techno-economic analysis (TEA) is used to assess the total investment and the profits of soybean oil expelling process with SuperPro Designer based on 30 million kg annual production for every 10 years from 1980 to 2014. With the fluctuation of economic, the total capital investment has been increased from 20,066,000to43,347,000 from 1980 to 2014. However, the material cost has the major effect of 63% in the final profits. The revenues from soybean oil, soybean meal and soybean hull also have been also increased with materials prices increasing from 46,706,000peryearto101,420,000 per year. The gross margin of soybean oil expelling process was obtained as combining total cost and revenues, that has been increased from -2.9% to 1.5% as well
