3. If a material/raw materials/parts bought from importers or purchased in the country, but did not know the source. To calculate from the rate based on the evidence that the domestic purchases excluding value added tax (VAT).
3. If / materials / parts supplied by the importer or buyer in the country but do not know the source. The calculation of the purchase price, according to documents in the country, excluding value added tax (VAT).
3. If raw materials / parts bought from the importer or bought in the country, but not the source. Calculate price according to documents from domestic purchases without VAT (VAT).