Ammonium Sulfate (AS 21-0-0+24S) 
  
MAP 5-46 (Monoammonium phosphate)
 
     
 Chemical formula:Mainly calcium phosphate (Ca₃(po₄)₂), however, the phosphorus content can vary from 27% to 28%.
HS Code: Depends on the classification of phosphorous ore, usually 2510 or equivalent.
Application:Raw materials for the production of phosphorous fertilizers (DAP, MAP, TSP).
Use with direct application to the soil in acidic or medium-acidic areas.
Advantages:- A natural source of phosphorus, suitable for organic farming.
 - It reduces the cost of finished fertilizers.
 - Long-term effect in the soil due to the slow release of phosphorus.