So far I can't prove corruption up to this point. There are at least 2 assessments which fit the scenario. So equally possible no corruption without knowing more.
I have no way of assessing what happened in regards to the transaction. You see during these times the leadership of these countries was very uncertain. Very primitive legal system. No established financial system in a modern sense. Elections were god only knows how bad. And it was uncertain how long the government would survive. In fact the government basically didn't even exist other than the fact they had been put in power "SOMEHOW"!!! They were broke *** bitches so there really WAS no government of any value. The government somehow spent all the money given them by the US and several European nations and then some. Then a LOT OF SOME!!! And couldn't honor the contract with UF. Could have been corruption but could also have just been poor management. Few records exists to determine the truth.
If there were corruption or evil which occurred it would seem reasonable to believe it was on the side of the government leadership. Minor Keith was obviously just trying to save his financial ***. I can only imagine the risk he took. Risk is a big part of what a deal is worth. He was risking essentially more wealth than existed in the entire country!!!! 3X the wealth at least!!!! And what he was getting in return was nearest I can tell pipe dreams for future prosperity. Wow!!! If he had come to me asking for investors I know I wouldn't have taken his side of the deal!!! Sounds like something only my brother would invest in.
Case in point was a similar project called the panama canal. Cost overruns and difficulties eventually bankrupted France and they had to sell their interest to the US to remain solvent. Several other nations had previously made the same bad risk.