Base metals are common metals that are not precious and are typically more abundant in the Earth's crust. Examples include copper, aluminum, lead, and zinc. These metals are often used in construction, manufacturing, and electrical applications due to their favorable properties, such as conductivity and malleability. Unlike precious metals like gold and silver, base metals are generally less expensive and more susceptible to corrosion. They are often used in alloys to enhance strength and durability. The demand for base metals is closely linked to industrial activity and economic growth, making them important indicators of market trends.