Yep...that's where it belongs
I have a small additional piece of info to add to the post:
Document 4 (the Statutory Declaration of Single Status) from an Australian Embassy in China, can be obtained from 3 different Embassies.:
Beijing
Shanghai
Guangzhou
Obviously, you would go to the nearest one to your intended place of marriage. In my case, Guangzhou is the easiest.
I am advised that SOME (and I cant find our exactly which) Local Chinese Authorities only require Documents 1) , 2) and 3)...so you would be advised to check with the Local Marriage Registrar in the Town of your pending Marriage to determine if they actually need Document 4).
Chengdu Local Registrar advised me that they DO need this document.
And of course, you will need your passport too !!!
David