Nitrogen 20.5% Sulphur 24% Moistur 1% Free Acidity 0.2% Our Advantages 1.All products are produced and sold by our own factory 2.Good quality with lower price 3.Offer a comprehensive after-sale service FAQ Q: Are you trading company or manufacturer? A: We are manufacturer. our main products are Ammonium sulfate and Cyanuric acid Q: How long is your delivery time. A; In generally it is 5-10 days or according quantity. Q: Do you provide samples? is free ? A: Yes, we have the qualification of MSDS certification to send samples by Air with free . Q: What is your terms of payments? A: 30% first pay,balanced against B/L or L/C.