According to statistics from the General Administration of Customs, the import volume of tungsten ore and concentrate in China was 552.484 tons in March 2023, a month on month increase of 1135.40% and a year-on-year increase of 126.50%.  From January to March 2023 (the first quarter), the import volume of tungsten ore and concentrate in China was 986.542 tons, a year-on-year decrease of 573.155 tons (a decrease of 36.75%).  In Marc...