9001Optical fibres and optical fibre bundles; optical fibre cables other than those of heading 8544; sheets and plates of polarising material; lenses (including contact lenses), prisms, mirrors and other optical elements, of any material, unmounted, other than such elements of glass not optically worked
CTHManufacture from materials of any heading, except that of the product.
MaxNOMManufacture in which the value of all the materials used does not exceed 50% of the ex-works price of the product.
50% ex-works