How do trade blocs hurt small companies?

they hurt large TNCs (Transnational corporations) as they eliminate global players in global society. Rather, trade blocs encourage FREE trade - trade that largely works in the mutual benefit of both parties. Free trade enables the free movement of goods and services without imposed tariffs on goods. This is especially advantageous to countries in the global south who tend to find themselves 'priced out' of goods and services from the developed, wealthy global north. Certainly, trade blocs (an example of free trade) is the way that society can progress to ensure that inequalities do no longer exist.