Inverse relationship between China A50 and RMB.

China A50

CNY (RMB)

From the 2 charts above, we can see that there is an inverse relationship between RMB and China A50.  Therefore, investors who are interested in China A50 have to monitor RMB movements as it will affect the trajectory of China A50 on SGX.  If you can predict the future RMB trajectory, you can determine the China A50 trajectory too.