For some reason, you cannot get detailed tracking info through EMS Track Trace for packages leaving China. They say they cannot full integrate China due to technical reasons. So for contrast purposes, I'm going to post screen shots from an order placed with a Korean company.
I've edited my tracking numbers for privacy, as well as the detailed city information where applicable.
Most things you get from outside of the country will come without tracking, or EMS with tracking. This post covers how EMS works, how to track it, and what the updates mean.
FAQ
What is EMS?
EMS is Express Mail Service. The US equivalent is Priority Mail International. It's expensive as hell, and all packages over a certain weight and dimension are required to be sent Priority Mail out of the States (this is why postal charges for mailing things out of the US start at a minimum of $30 usd).
How fast is EMS?
EMS is pretty fast. It usually takes around a week at most to ship from the origin country to US customs. Sometimes, weather, holidays, or other issues can cause shipping delays. Packages from Korea tend to arrive in the States within 3-5 days after acceptance at the origin post. Packages from China tend to take 5-7 days, occasionally more.