NHK Spring Co Ltd is primarily engaged in the manufacturing and sale of automotive-related parts, such as suspension springs, seats and seat components, and precision components. It also manufactures and sells information equipment-related products, and engages in logistics activities. The Company operates in five segments. The Suspension Springs segment manufactures and sells coil springs, leaf springs, stabilizers, accumulators, torsion bars, stabilizer links and stabilizer linkers. The Seating segment manufactures and sells automotive seats, seat structural parts. The Precision Components segment manufactures and sells mechanical parts for hard disk drives (HDDs), wire springs, thin leaf springs, motor cores, fasteners, and precision-machined products. The DDS segment manufactures and sells HDD suspensions and semiconductor inspection probe units. The Industrial Equipment and Others segment manufactures, sells, and transports semiconductor process parts, ceramic products and others.