The second is classified as "bilateral" (BTA) when signed between two sides, where each side could be a country (or other customs territory), a trade bloc or an informal group of countries (or other customs territories). Both countries loosen their trade restrictions to help businesses, so that they can prosper better between the different countries. This definitely helps lower taxes and it helps them converse about their trade status. Usually, this revolves around subsided domestic industries. Mainly the industries fall under automotive, oil, or food industries.