Buy Offer - Ammonium Nitrate

We are Starting a Cement Manufacturing Plant in Meghalaya. as the Rocks are Very High Hard and We have to Blast Them By Drilling Hole and Then Blast Them to Make the Ground Level to Reach the Lime Rocks.you are Requested to Send Details of a Suitable Grade for Our Job Which Should Be Economic You May also Suggest Some other Chemical Surving the Same Purpose.