Xiaomi Mi 6 suffering from ceramic and processor shortages
The ceramic edition of the Xiaomi Mi 6 replaces the phone's glass shell with one made of a ceramic material. This version of the phone comes with 128GB of native storage, and is priced at the equivalent of $435 USD. That is a small $15 or 3.6% premium over the cost of the 128GB standard variant of the Mi 6.
The bottom line is that the Xiaomi Mi 6 could be selling out a number of flash sales for the foreseeable future. Even without the shortages of the ceramic material and the Snapdragon 835 SoC, the Mi 6 might have faced a tight supply anyway. Xiaomi's flagship phone has historically provided a flagship quality handset at a good value, and the latest model is not an exception to that rule.
source: MyDrivers (translated) via AndroidAuthority