硫酸镁
Magnesium sulfate is Umai Chemical's main product and it has the top market share for sales of it in Japan. Other products manufactured include liquid magnesium chloride, sodium nitrate, nickel nitrate, dipping agents for cows ("Silky Dip"; antiseptic for protection from mastitis) and AdBlue. The company also trades in more than 100 chemical products and has the offices in Tokyo, Osaka, and Tokushima.