The 0.2% levy is not in contradiction of others international agreements. Infact, the levy is not new and indeed variations of such levy are already being used by several regional organizations globally. In Africa, levies on imports are being used by ECOWAS, ECCAS and CEMAC and has proven reasonably effective.
Such levies are ordinarily applied within the framework of customs unions and Free Trade Areas and do not conflict international norms. With the intended introduction of the Continental Free Trade Area in 2017, which will in essence include an Africa-wide customs union, such a levy therefore becomes possible and fully justifiable.