Redmi's General Manager has confirmed that the Redmi K50 series will feature handsets powered by the Snapdragon 8 Gen 1 and the Dimensity 9000. However, Dimensity 9000-powered models will arrive 'a little later' than their Snapdragon 8 Gen 1 counterparts, for some reason. The Redmi K50 series should start arriving later this month.
https://www.notebookcheck.net/Xiaomi-Redmi-K50-Lu-Weibing-confirms-release-timings-of-Dimensity-9000-and-Snapdragon-8-Gen-1-models.596890.0.html