6K, a leader in the sustainable production of engineered materials for lithium-ion batteries and additive manufacturing produced from its UniMelt® plasma technology, announced today it has raised $102 million in its Series D funding first close. The round was led by Koch Strategic Platforms ("KSP"), a subsidiary of Koch Investments Group, an investment arm of Koch Industries, with participation by investors Energy Impact Partners, Albemarle, HG Ventures, as well as participation by 6K's existing investors. The Series D proceeds will fund production expansion for premium 3D metal powders in its 6K Additive division and accelerate the deployment of cathode production plants in its 6K Energy division.

With sustainability at its core, 6K was founded in North Andover, Massachusetts, has developed UniMelt®, a proprietary advanced microwave plasma production system, to transform engineered materials into revolutionary products that advance industries across additive manufacturing, renewable energy, aerospace, consumer electronics, and more. 6K represents 6000 degrees, both the temperature of the operation of UniMelt®, the world's only microwave production scale plasma system, and the temperature of the sun's surface.