no tol - no problem!, page-2

Thx Arafura, great link.
I hadn't read it in full before but it seems to totally apply to the LAMP.
As I see it the critical bits are (I've deleted some parts for brevity):

.... Malaysia has already agreed to give foreign companies a number of extensive rights including:

- A broad definition of ‘investment’ that includes protecting: existing investments in Malaysia,...., mining and manufacturing licences and permits ...

- Abiding by the principle of ‘fair and equitable treatment’ ... regulations cannot be changed and no new regulations can be imposed on investors...

- ... requires governments to give fair market value compensation and interest for any government actions that have been found to reduce the value of the investment ... including ... profits.

My Comment: I can't see how the present situation for Lynas doesn't fall under these guidelines. It appears to also cover existing investments, changing of goalposts and compensation for loss of value AND lost profit.