Article 159U.K.
A royalty or licence fee in respect of the right to use a trade mark is only to be added to the price actually paid or payable for the imported goods where:
the royalty or licence fee refers to goods which are resold in the same state or which are subject only to minor processing after importation,
he goods are marketed under the trade mark, affixed before or after importation, for which the royalty or licence fee is paid, and
the buyer is not free to obtain such goods from other suppliers unrelated to the seller.