Copper fell for a fifth straight day on Friday, posting its biggest weekly loss since mid-March, as mounting inflationary pressure in China cast a shadow over the near-term demand outlook. COMEX May copper shed 2.65 cents to settle at $4.2575 per lb.
Chinese consumer price inflation sped to 5.4 percent in the year to March, the fastest since July 2008 and topping market forecasts of 5.2 percent. Gross domestic product in China, the world's top copper buyer, eased a touch.