BNFL and it's subsidiary Pacific Nuclear Transport Ltd, owns 7 ships which transport nuclear waste fuel and other nuclear materials, including plutonium, around the globe.
The ships carry nuclear waste fuel from BNFL's overseas customers in Japan, Germany, Switzerland and the Netherlands to its notorious Sellafield nuclear plant in Cumbria. The ships also carry nuclear waste fuel from the same overseas customers to the French version of Sellafield, La Hague.