https://www.cnet.com/news/xiaomi-ipo/ >Xiaomi has officially filed for IPO, according to its regulatory documents listed on the Hong Kong stock exchange. >The move comes as Xiaomi is gaining momentum with its smartphone sales, having bounced back from a slump in 2015, which saw it fall behind rivals Huawei, Oppo and Vivo in China. Since then, the company has bounced back, with over 91.4 million smartphones sold in 2017, as reported in its filing.