I took over a junior mining company, as CFO, that was bankrupt but didn't know it. It was a terrible company and turned out to be in worse shape than even I thought and ultimately failed. I tried to hire KIN as IR and they passed.
The head is a young cocky guy, who was riding the wave of Potash companies and made a ton of money on options, as well as, for brokers/shareholders. They are well connected and respected.
It may be that KIN knows that there is trouble in NDX and does not want to promote it to investor base. Their standard contract is 12 months and you pay even if you terminate them.
Just a thought, and for full disclosure, I am in the coal biz, and have not posted anything positive on NDX as I believe they are going the route the Royal Coal. But that is just my opinion, not shared by many here. Also, I own no shares of NDX.