What do the COMESA Customs Union and COMESA-EAC-SADC Tripartite Free Trade Area mean for Zambia’s import trade and trade tax revenue?

"Zambia has participated actively in the Common Market for Eastern and Southern Africa (COMESA) and Southern African Development Community (SADC) regional integration programmes. Within SADC it is now reportedly a full participant in the SADC Free Trade Area (FTA), granting duty-free and quota-free access to goods originating from the SADC region. It is also a founding participant in the COMESA FTA and is now looking ahead to participate in the establishment of the COMESA Customs Union. The country is also committed to participate in the recently announced Tripartite FTA, which will establish a free trade area and then eventually a customs union, consolidating the regional economic communities of COMESA, SADC, and the East African Community (EAC). The study elaborates Zambia’s bilateral, regional and multilateral trade policy arrangements as well as some of its trade policy intentions. It explained the country’s Most Favoured Nation (MFN) tariff structure and the tariff structures under the SADC trade protocol in 2010 and currently. In 2010 Zambia was in a tariff phase-down stage towards fully implementing the FTA and, reportedly, in 2012, it has started applying a full FTA with SADC countries, having completed the phase-down."