Chinese stocks increased on Wednesday led by consumer-discretionary companies and trainmakers after a data showed that imports in China rose by 16.8% in April and the country's trade balance came in a $18.3 billion surplus. The Shanghai composite Index fell 0.2% to 2,239.67 as of 1:08 p.m. local time, while the CSI 300 Index gained 0.3% to 2,537.44.