The Hall-Héroult process is an industrial method used to produce aluminum from its ore, bauxite. This process involves dissolving aluminum oxide in molten cryolite and then passing an electric current through the solution. The current causes the aluminum ions to reduce and collect at the cathode, while oxygen is released at the anode. Developed independently by Charles Martin Hall and Paul Héroult in the late 19th century, this process revolutionized aluminum production, making it more efficient and cost-effective. Today, it remains the primary method for extracting aluminum, contributing significantly to the global supply of this versatile metal.