HKS Co., Ltd. engages in the manufacture and sale of automobile parts. It operates through the Automobile-Related Parts Business and Other Business divisions. The Automobile-Related Parts Business division offers mufflers, electronics, turbochargers, suspensions, and engine parts. The Other Business division sells parts for lightweight and small airplanes. The company was founded on October 3, 1973 and is headquartered in Fujinomiya, Japan.