Park-Ohio Holdings Corp., through its subsidiaries, operates as an industrial supply chain logistics and diversified manufacturing company in the United States, Canada, Europe, Asia, Mexico, and other countries. The company operates in three segments: Supply Technologies, Assembly Components, and Engineered Products. The Supply Technologies segment provides engineering and design support, part usage and cost analysis, supplier selection, quality assurance, bar coding, product packaging and tracking, delivery, electronic billing, and technical support services. This segment also offers valves, electro-mechanical hardware, fittings, and steering components; and engineers and manufactures precision cold formed and cold extruded products consisting of locknuts, SPAC nuts, and wheel hardware. This segment serves customers in heavy-duty truck; automotive, truck, and vehicle parts; power sports and recreational equipment; bus and coaches; electrical distribution and controls; agricultural and construction equipment; consumer electronics; HVAC; lawn and garden; semiconductor equipment; aerospace and defense; and plumbing. The Assembly Components segment manufactures cast and machined aluminum components, automotive and industrial rubber, thermoplastic products, gasoline direct injection systems, fuel fillers, and hydraulic assemblies for automotive, agricultural equipment, construction equipment, heavy-duty truck, and marine equipment industries. This segment also offers design and engineering, machining, and assembly services. The Engineered Products segment is involved in the engineering, construction, service, and repair of induction heating and melting systems to component manufacturers and original equipment manufacturers (OEMs) in the ferrous and non-ferrous metals, silicon, coatings, forging, foundry, automotive, truck, construction equipment, and oil and gas industries. Park-Ohio Holdings Corp. was founded in 1961 and is headquartered in Cleveland, Ohio.