China exported 10000 tons of alumina in March, a year-on-year increase of 187.6%; The annual cumulative export of alumina was 20000 tons, a year-on-year decrease of 8.9%.In March, the import of unwrought aluminum and aluminum products was 197134 tons, a year-on-year decrease of 4.6%; In, the cumulative import of unwrought aluminum and aluminum products was 533136 tons, a year-on-year decrease of 19.4%.In March, the import of aluminum ore and its concentrate was 11.7 million tons, a year-on-year ···