Never mind the possibility, however far-fetched, that anyone would negotiate long term supply for a volume play with bespoke manufacturing requirements.
I do not rule out (totally) that is was the "idea", but it makes the case worse ...
But I do not think: as we see the purchase commitment is all time low* ... meanwhile - due to EU / China - more likely they will sell more bottle than ever.
* btw: due to this I still do not think they involve any new supplier recently (e.g. BASF)
Yes ... since you could sue anybody for anything ... totally baseless.