Mineral Commodity Report 7
Manganese prices increased dramatically from 1987 to 1990 but have since declined to 1988 levels. In May 1995, manganese ore (48–50% Mn and maximum of % P) was US/t, and manganese metal (%) was US1700–1780/t. World Production and Consumption The annual world production of manganese ore is about 20 Mt ( Mt in 1993; Dancoisne ...