1. This is the full tracking of your parcel on the China Post EMS site:

2016-12-08 00: 00: 00.0 01:36:00 Guangzhou Post Express Logistics International Business Branch Received

2016-12-08 00: 00: 00.0 03:18:00 Guangzhou City to reach the processing center, from Guangzhou Post Express Logistics International Business Branch

2016-12-08 00:00:00.0 03:37:00 Guangzhou City to the Customs and Excise Department

2016-12-08 00:00:00.0 03:38:00Customs Clearance of Guangzhou Customs Issued

2016-12-08 00: 00: 00.0 16:15:00 Guangzhou leaves the processing center and sends it to USORDQ = ISC CHICAGO IL (USPS)

2016-12-08 00: 00: 00.0 20:09:41 Guangzhou Post express logistics company international business branch to leave the processing center, sent to Guangzhou Terminal

2. Your parcel was receive by China Post EMS on the 08 Dec. Your parcel is On Rote/In Transit to your country USA Chicago. I would not be surprise that your parcel got delayed in China because of this:

When your parcel was sent it was not normal condition. Because:
Holiday Season
China Post has too many parcels to send overseas
Not enough room on the Aircraft for parcels
Smog in China delaying Aircraft or cancelling them
Rescheduling of mail bags
Chicago overwhelming of parcel incoming from Overseas.

3. Now what needs to happen is USPS scan your parcel on Arrival or when they have time to do it.

4. Just continue to track your parcel on the USPS site for any new movement.

Thanks.