can someone please explain to me how the recievers of the uro turn profit?
Well this is the remarkable nature of employing crypto for commodities. As long as you can have a group of traders who are willing to commit to buying and selling physical product at 1URO per metric tonne of UREA, the price of UREA in FIAT only matters when they need to cash out some URO for funds. If they can convince the market that the deals are bone fide, the value of the coin should reach FIAT equivalent fairly quickly, thereby ensuring that their business ends up receiving the right price for the deals done now because they will still hold the coin to that value.
Sure, if this whole project fails then there is a risk that traders will lose out, the sellers anyway. It's commodities trading for future returns, not using the coin as a currency for cashing out today. Deals of this size regularly run into the millions and take months and months for commercial banking processes to complete, so they do have some leeway regarding time.
It will require the, rather infantile, crypto market traders of today to change how they perceive what commodities trading actually means and how it works. Long term its a solid process that would benefit multiple stakeholders.
But there is a short term risk that they obviously want to mitigate by way of getting the market to accept that these deals are being done at the quoted rates today so that the price floor rapidly grows to equal that of the FIAT trading levels.