Reported on October 27, the University of Turku in Finland has introduced an Aerosint multi-material powder deposition system for research on multi-material metal 3D printing of fusion energy devices and aerospace components. Aerosint's roller-based selective powder deposition technology can deposit two or more metal powders in different regions within the same layer, enabling integrated forming of dissimilar-metal gradient structures such as copper/steel and copper/tungsten; it is currently one of the mainstream approaches for multi-material LPBF. The University of Turku will work with European fusion and aerospace organizations to carry out material compatibility verification, with key focus areas including tungsten-copper divertors and thermal management components for extreme-service conditions. Value for powder buyers: (1) commercialization of multi-material powder deposition will open up new procurement combinations in which tungsten, copper, and steel powders are mixed by region; (2) if fusion devices move toward engineering deployment, demand for tungsten-based powders will rise significantly—watch the European ITER supply chain; (3) domestic players in multi-material powder-bed systems are scarce, and the technology window is worth tracking.