AMV Monthly Output In 2019-2020 The total output of ammonium metavanadate in 2020 is about 9836 tons, which is 1561 tons less than that in 2019, with a year-on-year decrease of 13.7%. In the first half of the year, due to the impact of the COVID-19 epidemic, the operating rate was the lowest in February, with the output of only 170 tons. With the gradual alleviation of the domestic epidemic and the comprehensive promotion of the resumption of work and production, the monthly output of ammonium metavanadate gradually increased, with the highest output of about 1267 tons in August. On the whole, the operation of ammonium metavanadate manufacturers in 2020 is not as good as that in 2019, and a small number of manufacturers stopped production for a whole year or half a year.