Ann: Epanko Bankable Feasibility Study, page-60

That's a great question. As its an LOI and not binding, yes I believe they can simply not proceed with doing business with KNL. However I really don't think they would do this. TK wouldn't put there name to it unless they had the utmost confidence. All management posturing to date indicates that all is well and it's a matter of them know signing. The document is likely to be incredibly detailed which is a good thing and these things usually just take more time than what everyone wants.
However, If they were to pull out, I would go so far as to say it's a company breaker -no TK off take, less likely hood of funding, no mine up and running in 2017. Hello sub 10c
Just keeping it real ....