Keystone Powdered Metal Company is an established American manufacturer specializing in advanced powdered metal components and assemblies. Founded in 1927 and headquartered in St. Marys, Pennsylvania, Keystone has nearly a century of experience developing innovative powder metallurgy solutions for demanding applications. As part of the Sumitomo Electric Group, Keystone combines extensive metallurgical expertise with advanced manufacturing technology, engineering support and automated production capabilities. The company provides comprehensive solutions ranging from proprietary material blending and part design to in-house tooling, molding, sintering, secondary operations, assembly and testing. Its capabilities include conventional powder metallurgy, powder forging, ultra-high-density processing, engineering analysis, prototyping and failure analysis. Keystone manufactures gears, sprockets, bearings, carriers, structural components and complex assemblies for automotive, mobility, advanced energy, mechatronics, appliances, power equipment and industrial markets. With multiple manufacturing facilities and a technically experienced team, Keystone focuses on delivering precision, durability, cost efficiency and consistent quality. Its integrated approach enables customers to develop and manufacture high-performance powdered metal components from concept through production.