Please take Metro Line 7 and get off at Huamu Rd. station, which is near the Entrance 1#.

Check Shanghai Metro Network Map

You can use the car-hailing APP called "Didi" to order a taxi, and please show the SNIEC address to the taxi driver. Address: 2# Entrance Hall, SNIEC, 2345 Longyang Rd., Pudong New Area, Shanghai.
Address in Chinese: 上海市浦东新区龙阳路2345号新国际博览中心2号入口厅