So I've been digging into where aluminum is actually mined and produced globally, and the supply chain is way more complex than most people realize. Here's what stood out to me.

First, aluminum doesn't just exist as raw metal in the ground. Companies can't actually mine aluminum directly - instead they extract bauxite, which gets processed into alumina, then refined through smelting to produce the final metal. The conversion ratio is brutal: you need 4 tons of dried bauxite to make 2 tons of alumina, which then yields just 1 ton of aluminum. So when you're looking at where is aluminum mined, you're really tracking bauxite operations across specific regions.

Guinea dominates bauxite extraction with 130 million metric tons in 2024, followed by Australia at 100 million and China at 93 million. Brazil and India round out the top five. But here's the interesting part - where bauxite is mined doesn't always align with where aluminum actually gets produced. The USGS estimates global bauxite reserves between 55-75 billion metric tons, mostly concentrated in Africa, Oceania, South America, and parts of Asia. Known reserves hit 29 billion metric tons in 2024.

China completely dominates the actual aluminum production game. They hit 43 million metric tons in 2024 - nearly 60% of global output. India's second with 4.2 million, Russia third with 3.8 million, then Canada and UAE. What's wild is China also controls 84 million metric tons of alumina production, which is almost 60% of worldwide supply. They're vertically integrated across the entire chain.

The geopolitics matter here too. US tariffs on Chinese aluminum jumped to 25% in 2024, then Trump added another 10% in February 2025. Meanwhile, Canada supplies 56% of US aluminum imports, though those new tariffs might shift that dynamic. Russia's RUSAL was hit with import bans, but they've been redirecting exports to China instead - their year-on-year revenues to China almost doubled in 2023.

Where is aluminum mined internationally shows clear regional clustering. Norway's the EU's largest exporter, producing 1.3 million metric tons. Australia produces 1.5 million but struggles with high energy costs - they're actually one of the world's most emissions-intensive aluminum producers. Brazil's interesting because they've got massive bauxite reserves (2.7 billion metric tons) and are planning major investments. Norsk Hydro and Rio Tinto operate across multiple countries, making the supply chain truly global.

The energy component is massive. Smelting operations are incredibly power-intensive, which is why countries with cheap renewable energy or abundant hydropower have advantages. Norway's betting on green hydrogen for recycling. Brazil uses renewable sources through operations like Albras. Meanwhile, Australia's energy costs keep squeezing margins.

Looking at the investment angle - the aluminum sector feeds into everything from EVs to aerospace to packaging. New tariff regimes are reshaping where production happens and where aluminum actually ends up. If you're tracking commodity supply chains or thinking about related plays on Gate, understanding where aluminum is mined and processed across these different regions is pretty essential context for the next few years of trade dynamics.