In today's global economy, rare metals play a crucial role in the advancement of technology, energy, and industry. These metals, often referred to as rare earth elements (REEs) or critical minerals, include a diverse group of elements such as lithium, cobalt, nickel, copper, and the 17 rare earth elements like neodymium, dysprosium, and terbium. Despite their name, many of these metals are not exceptionally rare in the Earth's crust; rather, they are difficult to extract economically and are often found in low concentrations. Their unique chemical and physical properties make them indispensable in a wide range of applications, from consumer electronics and renewable energy technologies to aerospace and defense systems. As the world increasingly shifts towards a digital and green economy, the demand for these rare metals is soaring, underscoring their pivotal role in shaping our future.