... . Ammonium Chloride Our main market is Japan, NewZealand, Korea, USA and Australia, Singapore, ect. Especially in New Zealand, this product sells ... , which can adjust the soil PH value, prevent soil acidification and harden. Compared with magnesium sulfate, magnesium oxide is not water ... soluble, so it’s not easy volatile, the effect is much better.Our company sells 800 ...