Yangzijiang Shipbuilding (BS6) reported a 14% YoY rise in revenue to RMB3.05b and a 63% increase in net profit to RMB954.9m in 1Q11.The boost in net profit was mainly contributed by an increase in gross profit margin (27% in 1Q11 vs 23% in 1Q10) and higher other gains comprising mainly foreign exchange gains. 17 vessels were delivered in 1Q11, while…