Passage: These outlets were abolished for intra-EU travellers in 1999, but are retained for travelers whose final destination is outside the EU. They also sell to intra-EU travelers but with appropriate taxes. Some special member state territories such as Åland, Livigno and the Canary Islands, are within the EU but outside the EU tax union, and thus still continue duty-free sales for all travelers.

Question: What are applied to intra-EU travelers by these outlets?
appropriate taxes