Dr. Hüseyin Çaldırak is a Senior Researcher and Group Manager at the Rare Earth Elements Research Institute of the Turkish Energy, Nuclear and Mineral Research Agency (TENMAK–NATEN), where he leads the Ore and Mineralogy Research Group. He holds a B.Sc. in Geological Engineering from Hacettepe University, as well as two Master's degrees and a Ph.D. in Geological Engineering. Throughout his academic and professional career, he has contributed to and managed numerous national and international research projects. He has gained international research experience in Germany and France and has been awarded several national and international scholarships. As a geologist, his expertise includes large-scale geochemical data analysis, mineralogical characterization, and GIS applications. In addition to his research activities, he contributes to institutional policy development and strategic planning in the field of critical raw materials and mineral resource management.