Comment by tooltalk

>> That happened due to the China-South Korea trade war following the installation of THAAD in SK in 2016 [0]. <<

Not really. THAAD really plays no part in Samsung's fall in China. Samsung's smartphone sales in China was already down by -70% by the time THAAD broke out in 2016 from its peak in 2013 and still went down further to less than 1%. Samsung packed up and closed the last Chinese factory in 2019 -- went to Vietnam instead.

Patrick McGee recently released Apple in China: The Capture of the World's Greatest Company: it better describes the anti-foreign political situation in China at the time and what it meant to the smartphone industry. And how Apple avoided Samsung's fate, but is now captured by it. See Chapter 26 "Despot" and on.