According to Baidu map query:
Drive into Suntech Expressway from Yushan West Toll Station in Shangrao City (S 19 Suntech Expressway entrance) and drive for 47.0km. ..
Then drive into Hangchang Expressway, drive 26.7 kilometers on this road, then drive into Suntech Expressway and drive 2 1.2 kilometers to reach the destination.