Photo taken on May 21, 2018 shows a freight train (1st R) to Fangchenggang in south China's Guangxi Zhuang Autonomous Region at a logistic base in Guiyang, southwest China's Guizhou Province. China's rail freight volume, an indicator of broad economic activity, rose 9.1 percent year on year in 2018, according to the China Railway Corporation. Railways carried 4.02 billion tonnes of freight last year, 334 million tonnes more than the previous year, data from the company showed. (Xinhua/Liu Xu)