The world market is somewhere around $2Bn, even though current supply is not meeting demand. I think it can be much larger. If China and India were to use nuclear medicine at the same per capita basis as the US, those countries alone would be a market of $2Bn each, at a bare minimum.
I have proof of the desperate need of of these materials with two LOIs valued at up to $100M.
For the first phase of this project, which is mostly regulatory, I'm raising 1.5 on 12.