Phosphate

　　All phosphate fertilizers are obtained by extraction from minerals containing the anion PO43−. In rare cases, fields are treated with the crushed mineral, but most often more soluble salts are produced by chemical treatment of phosphate minerals. The most popular phosphate-containing minerals are referred to collectively as phosphate rock. In the nitrophosphate process or Odda process (invented in 1927), phosphate rock with up to a 20% phosphorus (P) content is dissolved with nitric acid (HNO3) to produce a mixture of phosphoric acid (H3PO4) and calcium nitrate (Ca(NO3)2). This mixture can be combined with a potassium fertilizer to produce a compound fertilizer with the three macronutrients N, P and K in easily dissolved form.

　　We also participating in the trade of phosphate fertilizers since company was established. Today, trading volume of phosphate fertilizers is around 25% of Allied Harvest’s turnover .

　　Here is the portfolio of our phosphates:

　　Monoammonium Phosphate (MAP)
　　Diammonium phosphate(DAP)
　　Triple Superphosphate (TSP)
　　Single Superphosphate(SSP)
　　Double Superphosphate(DSP)
　　Nitro Phosphate (NP)
　　Nitro Phosphate (NPs)

• MAP
• DAP
• TSP