1. This is the full tracking of your parcel:
Parcel No.RN409316025CN tracking result
2016-07-01 14:23:08.0 南岸区客户服务center received
2016-07-01 15:08:21.0 南岸区客户服务center customs scan
2016-07-01 16:28:55.0 leaving 南岸区客户服务center ，next station 重庆center
2016-07-02 09:51:30.0 重庆Transit Station export security scan
2016-07-02 10:10:59.0 重庆Transit Station export customs scan (domestic transit )

Another site is giving me this:
Number: RN409316025CN
Package Status: In Transit
Destination Country: Australia
Origin Country: China
2016-07-02 10:10 Exchange Bureau in Chongqing, have been exported to each other (internal transit)
2016-07-02 09:51 Exchange Bureau in Chongqing, has been exported to open
2016-07-01 16:28 District customer service center, left, next stop "Center of Chongqing"
2016-07-01 15:08 District customer service center,
2016-07-01 14:23 District Customer Service Center has been receiving and sending

2. You might want to read this:
What is the status of “Export Customs Scan” ? How long it will take?
On this site:

What is the status of “Export Customs Scan” ? How long it will take?

3. Your parcel either is traveling inside China to reach an Airfield that will fly to Australia or your parcel is having difficulty passing the China Post Customs check.

4. Just keep tracking your parcel for a new tracking information.

Hope this help.