China has retaliated against Donald Trump by raising duties on all American imports to 125 per cent from 84 per cent, declaring that it has no interest in responding further to what it calls a ‘joke’ policy. The higher rate will come into force from tomorrow. The announcement comes after the White House’s clarification that tariffs on Chinese exports have climbed to 145 per cent this year – a move China’s commerce ministry described as ‘economically meaningless’ and a tool for ‘bullying and coercion’.