If she knows too many secrets and is about to squeal to the US authorities, the Chicoms might kill her. Disguised as a 'suicide' or 'accident', of course.
The Chicoms had already assassinated this guy:
https://en.wikipedia.org/wiki/Wang_Jian_(businessman)
Right now, Canada PM Trudeau very dulan about Iran shooting down that plane, killing many Canadians. Meng Wanzhou was arrested precisely she (Huawei) defied US sanctions and had traded with Iran. Whether she was merely following instructions, we may never know.