NGK SPARK PLUG CO., LTD. engages in the manufacture and sale of automobiles, technical ceramics, spark plugs and related products for internal-combustion. It operates through the following segments: Automotive, Technical Ceramics, and Others. The Automotive segment deals with the manufacture and sale of spark plugs, glow plugs, automotive sensors, ceramic engine parts, and other automotive components. The Technical Ceramics segment handles the semiconductor and ceramics divisions that manufacture and sell IC package for CPU, mobile communications, OA equipment, and multi layer circuit board for automobile parts. It also include cutting tools and industrial equipment parts. The Others segment includes materials sales, welfare services, and transportation business. The company was founded on October 26, 1936 and is headquartered in Nagoya, Japan.