Based on the discussion with the production department.We realize that the percentage purity of gypsum ore produced from the mine, we currently do not have as high a year ago.
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 last year.
As a discussion with production department we realize that purity percentage of mineral gypsum produced from various mines in our not tall like years ago.