Used as a source of manganese in agricultural fertilizers to correct manganese deficiency in soils, especially for crops like soybeans, wheat, and peanuts. Improves plant growth, chlorophyll production, and enzyme activation. Widely applied in animal feed supplements to support metabolic functions and bone development in livestock. Serves as an electrolyte in the production of manganese metal through electro-winning processes. Utilized in the manufacturing of dry cell batteries and as a catalyst or precursor in various chemical and industrial processes. Also found in some fungicides and plant growth enhancers.