Based on the discussion with the production department.We realize that the percentage purity of the minerals gypsum produced from our mines currently not many-like high.Over the past year.
As the discussion with the production , we realize that purity percentage of the mineral gypsum produced from mines in our present is not as high as many years.
As a discussion with production department we realize that purity percentage of mineral gypsum produced from various mines in our not tall like many years ago.