All of you are going off on a tangent about conspiracy theories and "America bad", but no one is asking why this turn of events is happening now, in particular at a moment where the US administration is barring sales of sensitive technology to China..
China has sent ultimatums to tech companies in the past (mostly software), where not meeting some condition or criteria, would result in getting booted from the market. IBM and SAP are all too aware of this.
YMTC is NOT on par with Samsung, SK Hynix or Micron. So why is no one asking about the choice?
Personally, I'd doubt the fail rate and durability of these NAND chips, but then again... they only need to last till their planned obsolescence date, right?