I know that my hon. Friend has considerable experience, particularly on issues such as China, in which I know he takes a deep interest. The key point is that it will be a sovereign choice for the UK whether it extends the implementation period. He alludes to the fact that significant work is already going on. For example, the economic and financial dialogues the Treasury has with countries such as China, India and Brazil lay the groundwork for much of the trade discussions that colleagues in the Department for International Trade are concluding.