Rules of origin

8528 Monitors and projectors, notincorporating televisionreception apparatus; receptionapparatus for television, whetheror not incorporating radiobroadcastreceivers or sound orvideo recording or reproducingapparatus8529 Parts suitable for use solely orprincipally with the apparatus ofheadings 8525 to 85288530 Electrical signalling, safety ortraffic control equipment forrailways, tramways, roads,inland waterways, parkingfacilities, port installations orairfields (other than those ofheading 8608)8531 Electric sound or visualsignalling apparatus (forexample, bells, sirens, indicator,panels, burglar or fire alarms)other than those of heading 8512or 85308536 Electrical apparatus forswitching or protecting electricalcircuits, or for makingconnections to or in electricalcircuits (for example, switches,relays, fuses, surge suppressors,plugs, sockets, lamp holders andother connectors, junctionboxes), for a voltage notexceeding 1 000 V; connectorsfor optical fibres, optical fibrebundles or cables8538 Parts suitable for use solely orprincipally with the apparatus ofheading 8535, 8536 or 85378539 Electric filament or dischargelamps, including sealed beamlamp units and ultra-violet orinfra-red lamps; arc lamps8540 Thermionic, cold cathode orphotocathode valves and tubesManufacture in which the value ofall the materials used does notexceed 45% of the ex-works priceof the productManufacture in which the value ofall the materials used does notexceed 50 % of the ex-works priceof the productManufacture from materials of anyheading, except that of the productManufacture from materials of anyheading, except that of the productManufacture from materials of anyheading, except that of the productManufacture from materials of anyheading, except that of the productManufacture from materials of anyheading, except that of the productManufacture in which the value ofall the materials used does notexceed 45 % of the ex-works priceof the productManufacture in which the value ofall the materials used does notexceed 50% of the ex-works priceof the productManufacture in which the value ofall the materials used does notexceed 50% of the ex-works priceof the productManufacture in which the value ofall the materials used does notexceed 50% of the ex-works priceof the productManufacture in which the value ofall the materials used does notexceed 50% of the ex-works priceof the productManufacture in which the value ofall the materials used does notexceed 50% of the ex-works priceof the product8542 31 to8542 33 and8542 39Monolithic integrated circuitsManufacture from materials of anyheading, except that of the productorManufacture in which the value ofall the materials used does notexceed 45% of the ex-works price ofthe productThe operation of diffusion, in whichintegrated circuits are formed on asemi-conductor substrate by theselective introduction of anappropriate dopant, whether or notassembled and/or tested in a nonparty