@winston - I am sending Rambo to see you... ;-)
BTW, if KPC did not have the ability to enter into the Agreement then it (or officers) committed FRAUD if done with the knowledge they did have the ability to offer such an Agreement...
Based on the above, KK has Locus Standi to ask KPC for compensation since KK made business decisions based on the Agreement.
As far as the loss of financial goodwill, marketing costs, etc:
1) There were demurrage costs for the vessel/s
2) There are financing costs
The others might be 'vague' but in KK's defense, they are in the business of importing & selling fuel. They have the numbers to back up the losses they suffered...
Greedy when others are fearful. Very fearful when others are greedy - to paraphrase Warren Buffett