"Import fees" refer to the charges or taxes imposed by a government when goods or products are brought into a country from abroad. These fees are meant to cover costs such as customs duties, tariffs, or other charges. Full definition
Often, high import fees make e-readers inaccessible for your average reader. (goodereader.com)
Note that there may be import fees applied by your local authority. (astralnutrition.com)
As the publishers would be charged often heavy import fees if print editions were shipped, sending the files electronically prior to printing within that country should logically alleviate that cost. (goodereader.com)