If you are concerned about investing at the current PPS, just look at the current market cap for the company which is under 800M.

If they sell a minimum of 3M tons of phosphates a year to India, that alone is worth a minimum of 1.5B annually in todays market. They have quite a bit more capacity than 3 million tons, and the price per ton can go quite a bit higher as well.

The market cap of the company could easily go to 10 times earnings over the next two or three years. That will make $4.50 a share look like a steal.