Prince Manufacturing Company was the leading supplier of colorants and additives to the North American brick industry when Prince acquired the business. It is the largest manufacturer and its market share is about 9% in 2019.

    Guizhou Dalong Huicheng New Material Co.,Ltd was founded in August 2007,which is high-tech private enterprise specialized in developing, manufacturing and marketing inorganic fundamental materials; Such as Manganese Sulfate, Manganese Oxide, Manganese Dioxide.  It is the second manufacturer and market share is about 8% in 2019.

    Mesa Minerals Limited is an emerging manganese producer and leader in manganese technology solutions for the manganese mining industry. It is the third manufacturer and its market share is about 5% in 2019.

    CITIC Dameng Mining Industries Ltd. is a large corporate group that specializes in manganese manufacturing—mining, processing and smelting. Its market share is about 5% in 2019.