NGK SPARK PLUG is one of the leading automotive and technical ceramics suppliers, with its corporate headquarters in Nagoya, Japan and sales organisations and production facilities all over the world. The automotive side of the company specialises in the fields of ignition and sensor technology, supplying Original Equipment customers across the globe. For the Aftermarket, its product portfolio comprises spark plugs, glow plugs, ignition coils and leads under the NGK Ignition Parts brand. Under the brand NTK Vehicle Electronics the company offers oxygen sensors (including NOx sensors), exhaust gas temperature sensors (EGTS), mass air flow (MAF) and manifold absolute/boost pressure (MAP) sensors as well as engine speed and position sensors.