as these are exceptional preferences that are not compatible with the positive or negative rule of world trade organization too is necessary to a waver these preferences
As these are exceptional preferences that are not compatible with the positive or negative non-discrimination rule of the World Trade Organisation (WTO), it is necessary to obtain a WTO waiver before awarding these trade preferences.
As these are exceptional preferences that are not compatible with the positive or negative rule of World Trade Organisation (WTO), is necessary to a waiver these preferences.