Commitment to Quality

A Leading Supplier of Advanced

Powdered Metal Components

On March 31, 2022, Engineered Sintered Components Company merged with Keystone Powdered Metal Company (KPMC). To learn more about the merger and KPMC, please visit the company's website at

The Powder Metallurgy Advantage

Powdered metal (PM) manufacturing offers a near-net shape process to provide high-strength product with applications reaching across many industries. By reducing unnecessary consumption of raw materials and having the ability to recycle in-process waste streams, PM realizes a cost effective, environmentally friendly solution for metal component production.

Over our thirty-plus years of operation, Keystone Powdered Metal Company's Troutman location (formerly Engineered Sintered Components) has become a leading supplier of complex powder metal components for the North American market. Our ability to provide quality product through a vertically integrated manufacturing process makes us unique in our industry. In addition to conventional PM processes, KPMC offers the following in-house production capabilities:

  • High temperature and vacuum sintering
  • Sinter hardening
  • Heat treatment, steam treatment
  • Induction hardening
  • Precision machining operations: turning, milling, grinding, honing
  • Automated, custom inspection

As a subsidiary of Sumitomo Electric Sintered Alloy, we are globally connected through our group company network of 18 facilities in 10 countries. This footprint positions us well to partner with customers who require a worldwide supply of material produced locally through consistent production processes.

What We Offer

Keystone Powdered Metal Company is committed to providing the highest value to our customers, through innovation and technology development as well as continuous improvements in quality and productivity. We are confident you will find the management team and our employees have fully embraced the ideals of growth through customer satisfaction. Our dedication to the development of long-term relationships with our customers, employees, suppliers, and community truly sets us apart from our competition.

IATF 16949 Certified

ISO 14001 Certified

MPIF Certified

Global Supply

Sumitomo Electric Sintered Alloy (OSS), located in Okayama, Japan, is the main manufacturing facility and headquarters of the powdered metal division within the Sumitomo Electric Group. In total, the PM division is comprised of 18 companies in 10 countries, as well as new technology development at the Itami plant in Osaka.

Code of Conduct

The Code of Conduct of Sumitomo Electric Industries (SEI) states the Company's expectations that its employees conduct business in accordance with the Sumitomo Spirit and high ethical standards. We are committed to integrity and ethical business practices as we conduct business worldwide. For a copy of the Company's Code of Conduct, please visit SEI's website here»

The Company encourages employees and third parties to seek guidance or to report suspected violations of the Code, and the Company provides several avenues for reporting. One example is SEI's Hotline, which allows for anonymous, confidential reporting maintained by an independent third party. For more information on the Company's Hotline, please visit SEI's website here»