Manganese (II) ions function as cofactors for a number of enzymes; the element is thus a required trace mineral for all known living organisms. List of Mining Countries Edit This is a list of countries by manganese ore mining in 2015, based on United States Geological Survey accessed in 2016.
Jan 23, 2018· Production and Distribution of manganese. India has the second largest manganese ore reserves in the world after Zimbabwe. The total in situ reserves of manganese ore are 406 million tonnes out of which 104 million tonnes are proved, 135 million tonnes are probable and 167 million tonnes are in possible categories.