InssTek are a South Korean metal 3D printer manufacturer who currently sell 3 different printers. These printers are based on Direct Energy Deposition (DED) technologies, similar to Sciaky and Optomec.

The MX-400 is the entry level system offered by InssTek. The printer weighs roughly 4,000kg, and has a maximum print volume of 400 x 450 x 300 mm.