Which ore would car manufacturer be least interested in?

Car manufacturers would be least interested in ores that do not contain essential metals for vehicle production, such as aluminum, steel, or lithium. For example, ores like bauxite, which primarily yields aluminum, might be less relevant compared to iron ore or lithium ore, which are critical for producing car bodies and batteries. Additionally, rare earth elements, though important for certain technologies, may not be as essential for mass vehicle manufacturing compared to more commonly used materials.