Namibiaexports of Sulphates; of aluminium was $171.79K . Namibiaexported Sulphates; of aluminium to Angola ($171.79K )Namibiaexports of Sulphates; of aluminium was $171.79K . Namibiaexported Sulphates; of aluminium to Angola ($171.79K ).Sulphates; of aluminium imports by country in 2018