Second, it examines variations in the supply chain for different species present in the focus countries - and their corresponding impact on corruption risk. This variation owes to the fact that countries in the same region occupy - at times substantially - different positions in the broader IWT supply chain. Of course, some corruption risks are common to multiple countries, including at the source and transit stages. However, semi-structured interviews revealed a number of differences across the focus countries in the precise profile of corruption risks cited. However, a closer look at each country reveals key differences in the extent of their roles in sourcing and transit processes, as follows.