200mm blank ceramic wafer substrates, in disk shape, used by the electronics industry as a base product onto which chemicals and elements are deposited, exposed and etched to produce thin film magnetic heads for hard disk drives.

Classification has been determined in accordance with the following:- General Interpretative Rules (GIR)s GIR 1 has been used to classify this product by the terms of heading 6909 - Ceramic wares for laboratory, chemical or other technical uses; ceramic troughs, tubs and similar receptacles of a kind used in agriculture; ceramic pots, jars and similar articles of a kind used for the conveyance or packing of goods GIR 6 has been used to classify the goods to subheading level 690912 – Ceramic wares for laboratory, chemical or other technical uses; Articles having a hardness equivalent to 9 or more on the mohs scale Chapter 69 note 1 Chapter 84 note 1 HSEN to 6909