U.S. stocks tick down as Apple drags tech sector lowerChina's auto export ranks first globallyFour Long March 11 launches by sea plannedChina's tech giants spend big on digital 'red envelope war' to gain more mobile usersNASA's next Mars mission to probe deep interior of red planetChina launches new Earth observation satelliteChina launches new mobile telecommunication satelliteChinese companies retain 2nd place on Hurun Top 500Shanghai makes great strides in improving business environmentByteDance's platform takes on U.S. e