The 04A01 train (formerly known as AC05) is a current rolling stock used on Line 4 of Shanghai Metro.

They are developed by Siemens Mobility and built by CSR Zhuzhou Locomotive.

In March 2002, Siemens Mobility and CSR Zhuzhou Locomotive awarded the contract to build AC05 trains for the Pearl line Phase 2 project.

The first train built by CSR Zhuzhou Locomotive was completed on 18 December 2004.

Trains' signalling system were upgraded from ATO to DTO (TACS) and every car's indicators were increased from two to four.