According to the forecast data that ISTH ordered = 0 in Dec’19 and Jan’20 Due to decreasing purchase orders and moving production lines of customers Impact in ISTH having a lot of stock material. But what we can do to help THAPT is to purchase 50% of the forecast we release in Dec’19 and Jan’20Is 1,500 kgs. delivery on Jan’20 (Plese see detail new forecast as attached file.) Before that, I used to request the information about method control weight of material- Accuracy of weight balance - Calibration certificate- Accuracy ( Error ratio )- WI control weight.- Certificate of weight balance.Could you please send information to me?