You should never sue your own company. The more obvious thing is...

You should never sue your own company. The more obvious thing is to sue the staff responsible, directors often have insurance for this which means there is plenty of money for you if you win. I think you can get 5% of shareholder to trigger a spill of the board for election.

The issue with FBR is if it can get non recourse loans against any machines built. The machines should be worth a lot more then their cost to build. The risk is that there could be a deal being made that values the company at or less then it's share price or that shareholder's are screwed over somehow. But perhaps Wienerberger could just ask for a higher preportion of wall as a service and actually buy some of the machines at a profit.

If new models could be made 5* faster and the machines can be made 5* cheaper on mass then you multiply the existing margins (which may be 50 to 100%) by 25 and it makes a pretty good upside when added with other potential applications. However third parties are not obliged to act in shareholders best interests.