German powder manufacturer TANIOBIS has confirmed that two niobium-based superalloys, C-103 and FS-85, can be printed crack-free at industrial scale via laser powder bed fusion (PBF-LB). Nickel-based superalloys begin to soften above roughly 1050 C, so niobium alloys, with a melting point of 2477 C, are among the few candidate materials available for the high-temperature sections of rocket engines and hypersonic systems. Process parameters were first developed on a single-laser Renishaw AM400 and then transferred to a four-laser Renishaw AM500Q (4 x 500 W) with only minor adjustment: the C-103 process window widened to 95-255 J/mm3, while FS-85 spans 105-125 J/mm3. A demonstration nozzle 53 mm in diameter and 100 mm high came off the machine crack-free, with porosity below 0.1 percent and optical density above 99.9 percent; all 52 test blocks on the build plate showed porosity below 0.3 percent. The powder is produced from pre-alloyed electrodes by crucible-free EIGA gas atomization under argon, in a 15-63 micrometre particle size range with a D50 of about 30 micrometres; the particles are near-spherical with no satellites. Mechanically, FS-85 reaches about 750 MPa tensile strength at room temperature (C-103: 565 MPa); at 1500 C, C-103 strength falls to nearly zero, while FS-85 still retains about 220 MPa tensile and 195 MPa yield strength. Value for buyers: niobium alloy printing establishes an engineering path combining spherical powder and crack-free processing, providing a purchasable powder and process reference for high-temperature parts such as liquid rocket engine nozzle extensions and attitude-control thrusters; superalloy powder producers can benchmark against the EIGA spherical powder specifications.