No. It was China Rom out of the box. But I flashed it with xiaomi.eu rom a week after and currently using it.

Hey there, finally someone in the same boat 😄️

I refer this guide to unlock bootloader,

https://www.ytechb.com/how-to-root-redmi-k3...ock-bootloader/

After unlocking the bootloader, I follow the guide from xiaomi.eu to flash the rom.

For miui 11, https://xiaomi.eu/community/threads/miui-11...-release.52628/

OR

For miui 12 beta, https://xiaomi.eu/community/threads/20-5-28.56038/
Things to note, in case you didn't know,

1. Requesting to unlock bootloader will take one whole week to get permission from xiaomi server. If u r planning to flash EU rom, it's best to do this first before setting up adb on your PC.
2. Unlocking bootloader will full wipe your data so you might want to make a full backup beforehand.
3. Redmi k30 pro standard edition, zoom edition and poco f2 pro can be flashed with the same EU rom. Not sure with other region rom (I don't dare to try since the anti-rollback from the official rom might cause hard-brick).
4. We also share the same TWRP custom recovery.
5. In the xiaomi.eu website, look for Redmi K30 Pro rom (or lmi) to download, strictly follow the xiaomi.eu guide to flash. DONT EVER WIPE SYSTEM AND PERSIST PARTITION.

Hope this helps and good luck 😄️