- Business
- NGK Insulators, Ltd. NGK Insulators, Ltd. (NGKIF) manufactures and sells advanced ceramic products primarily for power infrastructure, environmental management, electronics, and industrial applications; its core offerings include high-voltage insulators and substation equipment for power transmission and distribution, sodium-sulfur (NAS) battery energy storage systems such as NAS MODEL L24, automotive exhaust gas purifiers encompassing HONEYCERAM substrates for catalytic converters, diesel particulate filters, gasoline particulate filters, and NOx sensors, electronic components like ultra-thin lithium-ion rechargeable batteries EnerCera and high-performance SiC/GaN wafers, ceramic membranes and separators for gas separation/dehydration in carbon capture and biofuel production, special metals/mold products including copper nickel tin alloys, and industrial processing equipment such as heating devices, kilns, refractories, and corrosion-resistant systems. The company operates through three main segments—Environment, Digital Society, and Energy & Industry—serving utilities, automotive manufacturers, semiconductor firms, and industrial clients globally across Japan, Asia, North America, Europe, and other regions; founded in 1919 and headquartered in Nagoya, Aichi, Japan, NGK maintains manufacturing facilities and subsidiaries in over 50 countries with key production concentrated in Japan. Recent developments include tripling production capacity for HICERAM carriers to address next-generation semiconductor demand in November 2025, announcing discontinuation of NAS battery manufacturing in October 2025 while fulfilling existing orders like those for Hungarian renewable projects, a company split with subsidiary NGK ELECTRONICS DEVICES, INC. and related mergers in October 2025, joint development with Mitsubishi Heavy Industries of membrane dehydration systems for bioethanol/e-methanol and hydrogen purification from ammonia cracking gas in 2024-2025, acquisition agreement for Borsig GmbH in February 2025 to bolster process and membrane technology, investments in Taiwan startups for LED/semiconductor businesses and biotech firm CHITOSE Group for ceramic-based bioproducts, launch of ultra-thin EnerCera batteries on e-commerce platforms, and receipt of SBTi Net-Zero certification alongside enhanced sustainability ratings from CDP and DJSI Asia Pacific.