Euro Zone trade surplus widened in March to 4.5 billion euros compared with the revised 2.4 billion euros from 2.6 billion euros and median forecasts of 5.0 billion euros surplus. The seasonally adjusted reading showed that the trade surplus narrowed to 0.6 billion euros from 3.3 billion euros which got revised to 3.4 billion euros, below estimates of 4.4 billion euros surplus.