Question: where are ngk spark plugs made?
Answer: The NGK Spark Plug Co., Ltd. (日本特殊陶業株式会社, Nihon Tokushu Tōgyō kabushiki gaisha) is a public company established in 1936 and based in Nagoya, Japan. NGK manufactures and sells spark plugs and related products for internal combustion engines, along with ceramics and applicable products.