A report suggests that the Redmi K30 Ultra and Xiaomi Mi 10 Ultra will be exclusive to China. A Xiaomi representative has confirmed that the company doesn't plan on selling either handset internationally, even as a Poco device.
https://www.notebookcheck.net/The-Xiaomi-Mi-10-Ultra-and-Redmi-K30-Ultra-will-not-be-released-globally.485479.0.html
Nah, at some point, they will sell those globally anyway. It's very bad for business if you miss the opportunity that everyone wants to buy it, but you don't sell it.
How is K30 ultra "significant upgrade" over K30 Pro? Mediatek processor is weaker than pro's 865.
Surely it's a bit cheaper, might even offer slightly higher value for money but it's not really a better phone.