Just realized something important about the global supply chain that most people are sleeping on right now. While everyone's focused on lithium for EVs, there's a massive supply concentration issue happening with rare earth elements that could reshape entire industries.

Here's what caught my attention: China's sitting on 44 million metric tons of rare earth elements reserves and produced 270,000 MT last year alone. That's 69% of global production from one country. Wild, right? But here's where it gets interesting — there are massive untapped reserves elsewhere that could actually change the game.

Brazil's got 21 million metric tons just sitting there, and they barely produced anything until recently. Serra Verde just started commercial production at Pela Ema in early 2024, and they're ramping up to 5,000 MT annually by 2026. More importantly, they're the only rare earth elements operation outside China producing all four critical magnet rare earths — neodymium, praseodymium, terbium, and dysprosium. That's a major deal for supply diversification.

Then you've got India with 6.9 million MT of reserves and Australia with 5.7 million MT. Australia's actually interesting because Lynas Rare Earths expanded their Mt Weld plant and just brought a new processing facility online in Kalgoorlie mid-2024. They're positioning themselves as the world's largest non-Chinese supplier. Hastings Technology Metals is also moving fast with their Yangibana mine — expecting 37,000 MT of rare earth elements concentrate annually starting Q4 2026.

The US situation is telling too. Despite having 1.9 million MT in reserves, they only produce at Mountain Pass in California. But the Biden admin earmarked $17.5 million in April 2024 for developing rare earth elements processing from coal byproducts, which could be a game-changer for domestic supply.

What's wild is how much this mirrors what happened in 2010 when China cut exports and prices went crazy. Now we're seeing the same geopolitical tensions playing out — China banned rare earth magnet tech exports in December 2023, and they're increasingly importing from Myanmar instead. That's creating environmental damage but also creating opportunities for other countries to step up.

Greenland's another wild card with 1.5 million MT of reserves. Critical Metals completed their stake in Tanbreez in July 2024 and started drilling in September. Meanwhile, Energy Transition Minerals is still fighting permitting battles on Kvanefjeld. With Trump back in office, Greenland's definitely on the radar for resource security.

The bottom line: global rare earth elements production hit 390,000 MT in 2024, up from 376,000 MT the year before. That's accelerating, but the supply chain's still fragile. Next 2-3 years are going to be crucial for whether these new projects actually come online and start diversifying supply away from China. If they do, you're looking at a fundamental shift in how the tech and EV sectors operate. Worth keeping a close eye on.