This IP is in China.
It appeared to me the first time when I tried to install Kali by the mini iso. I installed Kali as a vbox client. I run wireshark at the hosting PC during the installation and found that this IP was feeding me files. I ceased and deleted everything.
I then tried the bit torrent. Strange enough that the md5sum of the iso does not match with the one in the txt file.
In txt, it is 68b91a8894709cc132ab7cd9eca57513e1ce478b
The file from bit torrent gives 7431cfd02f7e96ce2e086bc06029a8a9
I have not used it.
I just try to download the iso directly from the link on your download page. Once again, the China IP appears as the source of the download!?
Is it normal?