Nanning Qinglong Trading Co., Ltd. is based in China and lists manganese oxide, zinc sulphate, magnesium oxide and manganese ore on Global Trade Plaza. The manganese oxide is offered with MnO 60% minimum, manganese 46% minimum and limits for lead, cadmium and arsenic. Zinc sulphate is available as monohydrate (ZnSO4·H2O 96.0% min, zinc 35.0% min) and heptahydrate (zinc 20.0% min) with stated sieve specifications. Magnesium oxide is offered in grades from 50% to 95% MgO. Manganese ore for dry cell production is listed with MnO2 content of 60% and 70%. Buyers can send an enquiry through Global Trade Plaza.