Ask HN: Chinese domain name registration center, maybe scam?
No synthesized answer yet. Check the discussion below.
Making money by selling you a bunch of domain names that you don't need.
If any of your org's managers want to play it safe by spending the money, remind them that there are hundreds of TLD's, to run up the annual cost of that strategy - https://en.wikipedia.org/wiki/List_of_Internet_top-level_dom... And that registrars for most of those are free to "receive applications" for close variants of your domain name. And to develop subscription "monitoring services". And other upsells.
(And no, I would not trust your email's claim about "an application from Kai Rui Ltd on August 25, 2025". Even if technically true - it'd be trivial for that Kai Rui Ltd to be tiny shell company, which did nothing but send out thousands of such "applications" every hour.)