NGK 

NGK Corporation, together with its subsidiaries, manufactures and sells electric power related equipment in Japan, rest of Asia, North America, Europe, and internationally. It operates through three segments: Environment, Digital Society, and Energy & Industry. The company offers energy storage systems, including NAS batteries; suspension, long rod, station post, hollow, and pin post insulators, as well as hardware for insulator assemblies and power equipment, such as bushing; HONEYCERAM, a component for exhaust gas purification; diesel particulate filters that eliminate particulates in the exhaust gas emitted from diesel automobiles; and NOx sensors, which measure NOx concentration in motor vehicle exhaust gas. It also provides metals and mold products comprising beryllium copper products, copper-nickel-tin products, beryllium products, molds, and related parts; electronic components consisting of piezoelectric micro actuators, high frequency components, and mold-cast ceramics; EnerCera, a chip-type ceramic rechargeable battery; micro-lens for UV-LED; and DCB and AMB substrates for power modules. In addition, the company offers ceramics for semiconductor manufacturing equipment, including ceramic heaters, electrostatic chucks, and components; industrial process products, such as heating systems, kiln furniture and refractories, ceramic membranes and separators, glass-lining products, high temperature dust collectors, ceramic and vacuum pumps, radioactive waste treatment equipment, gas analyzers, and water purifiers; and refractory products and sodium/sulfur batteries, as well as compound crystal search services. Further, it develops capacitance sensors and micro heaters. NGK Corporation was formerly known as NGK Insulators, Ltd. and changed its name to NGK Corporation in April 2026. The company was incorporated in 1919 and is headquartered in Nagoya, Japan.