China's export growth gathered pace in April as factories raced to meet a wave of overseas orders from buyers seeking to stockpile components amid fears the Iran war could push global input costs even higher. Exports expanded 14.1% from a year earlier in U.S. dollar value terms, customs data showed on Saturday, outpacing the 2.5% gain in March and a 7.9% rise tipped by economists. Chinese exporters have so far weathered the fallout from the Middle East conflict, buoyed by overseas buyers