The first signs of the presence of Phosphate were initially reported during the drilling of oil wells in southwest Iran during 1954.The National Geology Organisation programmed the exploration of Phosphate in Iran from end of 1963. From 1975 to 1981 with the cooperation of the French Research Geology & Mines (BRGM) the exploration of phosphate rocks was started  in Iran. With the forming of  Exploration Plans throughout Iran in 1982, a systemic exploration of phosphate was accomplished till 1993, resulting in indtroducing 27 potential phosphate reserves throughout Iran with a total deposits of 630 million tons with an average grade of 8.5% of P₂O₅ Igneous (about 30 million tons) were identified by the Geology Organisation of Iran of which most of  these  minerals have gone through exploration and semi-comparisons.

Mineral Dressing which in the past  for processing phosphate rocks all  the abovementioned minerals (in laboratory comparison  or semi-industrial) were performed showed that the Esfordi Phosphate is the most feasible.

The Esfordi Phosphate with signs of Igneous due the high grade of P₂O₅ and open pit being of the mine and the low costs of the exploration, it was considered as economical during that time.