Where is the S/N on Apple EarPods(MD827FE/A) box?

I'm from South Korea and in person, someone stole my earpods.

Since I have the box of the product I wanted to find out the S/N of it so that I can compare the S/N when after I find my earpods back.

But I can't find the S/N on the box or anywhere else inside the box.

There are two stickers on the outside of the box, one has an info written in Chinese and the other one with UPC and JAN Barcode on it.

Where can I find S/N of my Earpods.

Please help. Thanx