Clausthal University of Technology (Technische Universität Clausthal) is a public technical university in Lower Saxony with roots in mining and engineering education. Today it focuses on technology and natural sciences, with study options in fields such as engineering, materials, energy, mathematics, computer science, and related disciplines. As a smaller university, it offers a close-knit campus environment and highlights internationality, including a high share of international students. Research and teaching often connect to sustainability topics such as circular economy, resource efficiency, and digital transformation.