Park-Ohio Holdings Corp. provides supply chain logistics services and manufactures aluminum products. It operates through the following business segments: Supply Technologies, Assembly Components, and Engineered Products. The Supply Technologies segment provides customers with total supply management services for a broad range of high volume, specialty production components. The Assembly Components segment manufactures cast aluminum components, automotive and industrial rubber and thermoplastic products, fuel filler and hydraulic assemblies for automotive, agricultural equipment, construction equipment, heavy duty truck and marine equipment industries. It also provides value-added services such as design and engineering, machining and assembly. The Engineered Products segment operates a diverse group of niche manufacturing businesses that design and manufacture a broad range of high quality products engineered for specific customer applications. The company was founded in 1907 and is headquartered in Cleveland, OH.