There is no PTSC as we know it since decades - it's Mosaic now - BUT:
We only own 10 % of the new company.

But as someone else already said:
It's better to own 10 % of something valuable than 100 % of nothing.

Hence IMO we have NOW - after all the legal losses - more chances than we had in the last seven years.

Anyway, I guess everyone has written off the money invested in PTSC - so if something positive would happen, it would be an extra none has expected anymore.