Overview Aluminum is a light, corrosion-resistant, highly conductive base metal used across transportation, construction, packaging, electrical systems, and machinery. On commodity markets, it is commonly priced as primary aluminum of standard commercial purity, with the London Metal Exchange (LME) benchmark for 99.5% purity widely used as a reference. Prices are typically quoted in US dollars per metric ton. Because aluminum is traded as a standardized industrial input, the benchmark reflects the value of deliverable metal rather than finished products or specialized alloys. Its physical properties make it a core material in applications where low weight, formability, and durability matter. It is also widely recycled, and scrap aluminum often trades as a separate but closely related market. The metal’s market structure links mining, refining, smelting, power costs, logistics, and fabrication, so its price reflects both raw material availability and the economics of energy-intensive production. Aluminum is also an important substitute for steel, copper, and plastics in selected uses, depending on cost, weight, conductivity, and corrosion requirements. Supply Drivers Primary aluminum supply begins with bauxite mining, followed by refining into alumina and then smelting into metal. Bauxite deposits are concentrated in tropical and subtropical regions, especially Australia, Guinea, Brazil, India, and parts of Southeast Asia, where geology and climate support lateritic ore formation. Alumina refining is less geographically constrained than mining, but smelting is strongly shaped by access to low-cost electricity, because electrolysis is highly power intensive. For that reason, smelting capacity often clusters near hydroelectric resources, coal-based power systems, or large industrial power networks. Supply is also affected by transport bottlenecks between mines, refineries, ports, and smelters, since each stage depends on bulk material handling. Production can be disrupted by weather, flooding, drought, mine depletion, labor issues, or maintenance outages at power facilities. Unlike agricultural commodities, aluminum supply does not follow a harvest cycle, but it does respond to long lead times in mine development, refinery construction, and smelter commissioning. Recycling adds a flexible secondary supply stream, especially from packaging, automotive, and construction scrap, and it tends to expand when scrap collection systems are efficient and primary metal prices are high relative to processing costs. Demand Drivers Aluminum demand is driven by its use in transportation, construction, packaging, electrical transmission, consumer durables, and industrial equipment. In transportation, its low density supports fuel efficiency and payload optimization, which makes it useful in vehicles, rail, aircraft, and marine applications. In construction, it is used in window frames, cladding, roofing, and structural components where corrosion resistance and ease of fabrication matter. In packaging, beverage cans and foil rely on aluminum’s barrier properties, light weight, and recyclability. Demand is also shaped by substitution. Aluminum competes with steel in structural and transport uses, with copper in some electrical applications, and with plastics and composites in packaging and lightweight components. The relative price of these materials influences substitution over time, but technical requirements such as conductivity, strength, and heat resistance limit how far substitution can go. End-use demand is partly cyclical because construction, manufacturing, and durable goods consumption rise and fall with industrial activity and household income. Seasonal patterns matter in some regions through construction activity, beverage consumption, and electricity demand for air conditioning, which can affect downstream fabrication and inventory behavior. Recycling and product design also influence demand for primary metal, since higher scrap recovery reduces the need for virgin aluminum in some applications. Macro and Financial Drivers Aluminum prices are sensitive to the US dollar because the metal is globally traded in dollar terms; a stronger dollar tends to make dollar-priced commodities more expensive in local currency terms for non-US buyers. Interest rates matter because aluminum can be stored, financed, and financed inventory carries a cost, so higher rates can raise the cost of holding stocks. Storage and warehouse economics also shape the forward curve: when nearby metal is scarce relative to stored material, backwardation can emerge; when inventories are ample and carrying costs dominate, contango is more common. As an industrial metal, aluminum often tracks broader manufacturing cycles and can correlate with other base metals such as copper and zinc. It is less of a traditional inflation hedge than precious metals, but it can reflect inflation in energy, freight, and labor costs. Related Commodities Copper is a substitute in electrical applications, though aluminum is lighter and usually less conductive. Steel competes with aluminum in construction and transportation where strength and cost are central. Bauxite and alumina are direct upstream inputs, so their prices affect smelting margins and primary metal supply. Electricity is a critical input rather than a traded substitute, but power costs strongly influence where aluminum smelting is economical.