Xiaomi released the Redmi K30 phones in China back in December last year. Since then, the phones have sold reasonably well, with Xiaomi announcing that it has sold three million units in the Chinese market, and temporarily slashing prices of the Redmi K30 4G by up to US$85.
https://www.notebookcheck.net/Xiaomi-temporarily-slashes-Redmi-K30-price-tag-by-up-to-85-in-celebration-of-impressive-sales-landmark.480579.0.html