KARACHI: Directorate General of Customs Valuation has notified valuation guidelines of Oxalic Acid and Sorbitol for the reference of assessment staff. Directorate General of Customs Valuation is actively pursuing ‘Tanveer Plan’ and the development of database values and issuance of reference values of importable items have started yielding results. Director General Customs Valuation Syed Tanveer Ahmed devised a plan to streamline values of importable values to check under-invoicing, which is not only causing revenue loss to the exchequer, but it also has deprived the local manufacturing of level playing field. Directorate General of Customs Valuation has initiated an exercise to develop database values for different items wherein it has been observed that declarations are wide range and do not correctly reflect values of the items as traded in the international market. The reference values of Sorbitol Powder 70% Food Grade of China and Indonesia are $1.5/kg, of Europe are $2.64/KG. The reference values of Sorbitol Powder 70% Non-crystalline Grade of India, China and Indonesia are $1.5/kg, of Europe are $2.64/KG. The reference values of Oxalic acid 99.6% of China and India under PCT 2917.1110 are fixed at $0.64/kg.