Workers load coal into a railcar at a railway station in Jiujiang, eastern China’s Jiangxi Province, in this file photo. China’s rail freight volume, an indicator of broad economic activity, rose 9.1 percent year on year in 2018, Xinhua quoted China Railway Corp. as saying Wednesday. Railways carried 4.02 billion tons of freight last year, 334 million tons more than the previous year, data from the company showed. Xinhua