6K Additive Secures Long-Term Nickel Powder Deal with Siemens Energy — Building Circular AM Supply Chain

6K Additive has announced a long-term agreement with Siemens Energy to source nickel-based alloy powders, advancing the circular economy for metal additive manufacturing.

Closing the Loop

Under the deal, Siemens Energy will supply nickel-based revert powder — scrap from in-house production — which 6K Additive will process into new feedstock using its UniMelt plasma atomization technology.

6K Additive has already processed nearly 20 tons of such powder from Siemens Energy, which was subsequently supplied to the AM market. Siemens Energy is historically one of the world's largest metal AM users, making it an ideal partner for high-quality scrap.

Sustainability as Security

Frank Roberts, CEO of 6K Additive, said: "Siemens Energy is a strong example of an industrial partner committed to advancing circularity. Their consistent and high-quality feedstock enables us to produce premium nickel alloy powders using our UniMelt process, delivering meaningful reductions in energy use and carbon emissions while supporting the growing demand for sustainable AM materials."

The Head of Finance for AM at Siemens Energy, Steve Sarcander, added: "By supplying our revert material into 6K Additive's production process, we are supporting circular material flows while helping to reduce waste and emissions associated with metal powder production. Partnerships like this play an important role in strengthening the overall AM value chain."

Growing Demand

The agreement comes as demand for sustainable AM materials grows. The partnership exemplifies the 'sustainability-as-security' thesis that has been gaining traction in the industry — reducing reliance on virgin materials while building more resilient supply chains.

Siemens Energy has been ramping up its US investments, focusing on grid infrastructure and gas turbine equipment to support the AI boom. The company has announced a $1 billion investment that will create over 1,500 skilled jobs in the US.