NGK Insulators, Ltd., along with its subsidiaries, operates internationally, manufacturing and distributing equipment related to electric power across Japan, North America, Europe, and Asia. The company's operations are divided into three primary segments: Environment Business, Digital Society Business, and Energy & Industry Business. Its extensive product range includes advanced energy storage solutions such as NAS batteries, as well as a variety of electrical insulators like suspension, long rod, station post, hollow, and pin post types. The firm also contributes to environmental protection with products such as HONEYCERAM for purifying exhaust gases, diesel particulate filters designed to eliminate soot from diesel vehicle emissions, and NOx sensors for measuring nitrogen oxide concentrations in automotive exhaust. Additionally, NGK offers a selection of metal-based products, including beryllium copper and copper-nickel-tin alloy items, molds, and related components. Its electronic offerings feature piezoelectric micro actuators, high-frequency components, mold-cast ceramics, and the innovative EnerCera chip-type ceramic rechargeable battery. Furthermore, NGK provides specialized ceramics essential for semiconductor manufacturing equipment, encompassing ceramic heaters, electrostatic chucks, and other key components. For industrial processes, the company supplies a wide array of products such as heating systems, kiln furniture, refractories, ceramic membranes and separators, glass-lining products, high-temperature dust collectors, ceramic and vacuum pumps, radioactive waste treatment equipment, and gas analyzers. It also offers C1 home-use water purifiers. Founded in 1919, the company's headquarters are located in Nagoya, Japan.