GQ.V has 50 million ton Potash resource/ $28 Billion US "Great Quest has delineated an inferred resource of 50 million tonnes grading 24.8% P2O5
https://www.globenewswire.com/en/news-release/2018/03/08/1418664/0/en/Tilemsi-Phosphate-Exploration-Results.html
--------------------------
https://blogs.worldbank.org/opendata/fertilizer-prices-ease-affordability-and-availability-issues-linger
1 metric ton Potash price 562 US Dollars.
https://www.indexmundi.com/commodities/?commodity=rock-phosphate
--------
50 million ton Potash resource × 1 metric ton Potash 562 dollars= 28 billion dollars Potash resource.
_________
Plus the company has gold mine.