Xiaomi had planned a sales event for the Mi 9 Transparent Edition, as well as the Mi 9 SE, for today (March 14, 2019) in China. However, reports that it has been abruptly cancelled have come in from that country. The OEM cited unit supply issues while apologizing for this move.
https://www.notebookcheck.net/Xiaomi-cancels-Mi-9-Transparent-Edition-sales-at-the-last-minute.414498.0.html