90319030

HS code 90319030 (Chapter 90 "Optical, measuring, medical instruments"; Heading 9031 "Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors"; Subheading 903190 "Parts and accessories") under the Vietnam tariff schedule classifies "- - Parts and accessories including printed circuit assemblies of optical instruments and appliances for inspecting semiconductor wafers or devices or for inspecting masks, photomasks or reticles used in manufacturing semiconductor devices; parts and accessories of optical instruments and appliances for measuring surface particulate contamination on semiconductor wafers". Vietnam customs apply MFN rate of 5, Preferential rate 0. Statutory unit of measure: unit. 22 free trade agreement preferential rates are available for this code.