The past 25 years have been characterised by a surge in international trade as economies have become increasingly inter-linked. In many advanced economies this surge has been associated with increased import competition from low-wage economies. This paper explores the effects of such competition on manufacturing jobs in the UK. We consider two developments that influenced the nature of international trade: the ascendency of China as an important player in global markets and the accession to the European Union of a number of Eastern European economies in 2004. Both of these changes were associated with a shift in trade regimes and led to a sharp rise in import competition in particular UK manufacturing sectors. We find that these changes are likely to have hastened the decline of UK manufacturing.