6K Additive and ADDMAN have signed a 30-month agreement for the supply of Nickel 718 alloy powder. The contract carries a minimum value of US$8.1 million and a possible maximum of US$10.8 million. It covers more than new feedstock: 6K will buy eligible revert powder from ADDMAN and use its UniMelt microwave-plasma process to turn that material into new powder.

The financial terms appear in the listed company's 30 September 2026 market announcement, the corporate release and specialist press coverage. The spread between minimum and maximum indicates that the full value depends on actual purchasing; US$10.8 million is therefore not immediate guaranteed revenue. Dedicated stocking support for ADDMAN is also part of the arrangement.

What is the Ni718 powder for?

ADDMAN says it will use the material for expanding aerospace, defence and energy production. Nickel 718 is a precipitation-hardenable nickel-chromium superalloy used where strength at elevated temperature, corrosion resistance and an established industrial pedigree matter, including engine, turbine and energy components. The alloy name does not qualify a printed part by itself: powder characterisation, parameters, heat treatment, inspection and application approval remain necessary.

6K's product information describes spherical Ni718 powder for additive manufacturing. ADDMAN's metal portfolio includes laser powder-bed fusion and materials development. The contract is therefore not the launch of a new process; it is a larger and longer supply framework for a material already relevant to the companies' work, backed by inventory support.

How the buy-back loop works

Not all powder loaded into a metal powder-bed system becomes a part. Some residue can be sieved, tested and reused directly. Other material has accumulated thermal exposure, contamination or an out-of-specification size distribution. The agreement gives eligible revert a commercial route: 6K buys it from ADDMAN, processes it and uses it as feedstock for new powder.

6K says UniMelt can accept certified turnings, millings, support structures, failed builds and used powder. That is a vendor statement. The announcement does not disclose the acceptance criteria, yield or loss for ADDMAN material, nor how much newly produced powder will return to the same customer. It is a circular commercial framework, not proof of a one-to-one closed material identity.

Why supply security matters

Powder is not a generic consumable for high-value metal parts. Particle-size distribution, sphericity, oxygen content, flow behaviour and lot traceability affect layer spreading and process stability. A long-term agreement can reduce procurement uncertainty, but it cannot replace incoming inspection, qualification and change control.

Both companies emphasise a domestic US supply chain. That can matter for defence and energy programmes with origin, security and traceability requirements. The release names no end-user programme, annual tonnage or guaranteed part volume, however, so those quantities cannot be derived from contract value.

Verified terms and vendor claims

Verified terms are the 30-month duration, US$8.1 million minimum, US$10.8 million maximum, Ni718 supply, stocking support and buy-back programme. 6K claims that reverted feedstock can become high-performance spherical powder and that the approach lowers total cost and foreign dependence. The release provides no contract-specific yield, cost or qualification results to test those claims.

An earlier independent life-cycle assessment reported substantial energy and emissions reductions for 6K nickel-powder production relative to conventional routes. It is useful context, but it is not a complete LCA of this ADDMAN agreement. Transport, collection, rejection and part-production data would be needed to calculate the contract's actual environmental balance.

Editorial conclusion

The agreement matters because it joins multi-year supply, inventory security and metal-revert recovery in one commercial structure. Its minimum value is a tangible commitment, while the maximum remains dependent on purchasing. LAYERTIMES considers processed revert volume, lot-qualification data, demonstrated cost change and named production programmes the next evidence needed to measure its industrial impact.