Rare Earth Elements (REEs) are a group of 17 chemical elements found in the periodic table, including lanthanum, cerium, and neodymium. Despite their name, these elements are not actually rare; they are relatively abundant in the Earth's crust. However, they are often dispersed and not found in concentrated deposits, making them challenging to mine and extract. REEs are essential for many modern technologies, including smartphones, electric vehicles, and renewable energy systems. These elements play a crucial role in the production of high-performance magnets, catalysts, and phosphors. For instance, neodymium is used in powerful magnets that help drive wind turbines and electric motors. As the demand for clean energy and advanced electronics grows,