The West Is Throwing Away Critical Minerals?And China Knows It

Highlights

• The U.S. had 174,500 metric tons of black-mass production capacity in 2023 but only 35,500 tons of capacity to turn that into finished battery materials.
• China held over 80% of global battery-recycling capacity in 2023 and enacted a new national standard in July 2025 to import black mass as a secondary raw material.
• Europe plans to classify black mass as hazardous waste by September 2026, which may block exports but does nothing to build domestic refining capacity.
• Industrial wastewater carries thousands of tonnes of nickel, copper, chromium and platinum-group metals out of European facilities annually, largely unmeasured and unrecovered.
• Strategic mineral security requires closing the full loop from battery to recovered metal to qualified material—anything less reproduces the same supply-chain dependency the West is trying to escape.

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America and Europe are spending billions searching for lithium, nickel, cobalt and other critical minerals. Some of those same metals are already sitting in discarded batteries—or literally flowing down the drain.

The West has discovered an unconventional critical-minerals deposit: its own waste. Lithium-ion batteries can be shredded into metal-rich "black mass" containing lithium, nickel, cobalt, manganese and graphite. Industrial wastewater can carry nickel, copper, chromium and even platinum-group metals. These resources have already been mined, transported and processed once. Yet America and Europe still struggle with the most valuable step: economically turning waste back into high-purity industrial material.

REEx Insight | The Mine Already Happened

The deeper lesson is uncomfortable: recycling without refining can reproduce the same dependency the West is spending billions trying to escape. A battery shredder is not a refinery. Black mass is not battery-grade lithium carbonate or nickel sulfate. And removing metal from wastewater only to bury it in mixed sludge is pollution control—not circularity. REEx sees the same bottleneck repeatedly across critical-mineral supply chains: the strategic advantage belongs not necessarily to whoever owns the resource, but to whoever masters the difficult chemistry that converts it into something industry can use. China built that capability at enormous scale. The West is now racing to catch up.

Black Mass: The Mine Above Ground

"Black mass" sounds like garbage. Economically, good material can resemble concentrated secondary ore.

Spent lithium-ion batteries are dismantled and shredded; steel, aluminum, copper and plastics are separated, leaving cathode and anode material. Nickel-manganese-cobalt batteries are particularly attractive because nickel and cobalt help finance recycling. Lithium-iron-phosphate batteries lack those valuable metals, making the economics tougher.

And here the numbers expose America's weakness.

The U.S. Department of Energy reported roughly 174,500 metric tons per year of intermediate battery-processing capacity in 2023, including black-mass production, but only 35,500 tons of recycled-material-production capacity. America had become much better at making the intermediate than finishing the job. Europe faces much the same problem. The European Commission's Joint Research Centre reports that at least half of black mass obtained in the EU is exported for treatment outside the bloc, even as European refining capacity remains underutilized.

Why? Because Asian refiners can offer attractive prices, enormous scale and proximity to cathode and battery manufacturers.

Historical OECD research documented European battery waste moving through Malaysia, Indonesia and the Philippines and U.S. material through South Korea, with intermediates feeding Asian battery-material supply chains—including China. But precision matters: current public trade data do not prove that most European or American black mass goes directly to China. Batteries become waste, then black mass, then metal intermediates, sulfates and eventually cathode material, changing customs classifications along the way. The inability to follow the material is itself part of the problem.

Beijing Wants the Waste

China understands the value. A Chinese national standard for recycled lithium-ion black mass took effect in July 2025, allowing qualifying material to be treated as a secondary raw material rather than solid waste for import purposes. China already held more than 80% of global battery-recycling capacity in 2023, according to the International Energy Agency. CATL says its Brunp subsidiary alone had 270,000 tons per year of waste-battery disposal capacity at the end of 2024. Europe is moving the other direction. Waste lithium-ion batteries and black mass are scheduled for hazardous-waste classification in September 2026, effectively blocking covered exports to non-OECD countries including China. That may keep more material in Europe.

But keeping the powder does not create the refinery. There are genuine Western bright spots. Redwood Materials (opens in a new tab) is integrating U.S. battery recycling into refined battery materials; Cirba Solutions (opens in a new tab) is developing black-mass refining in Ohio. Europe has Fortum, BASF, Mercedes-Benz and cylib. The strategic objective must be: battery → recovered metals → qualified material → new battery. Anything less leaves part of the loop open.

The Critical Metals Flowing Down the Drain

Then comes an even less appreciated resource: wastewater. Metal plating, electronics, mining, chemicals and metallurgy can generate water containing valuable metals. Conventional treatment often precipitates them into mixed sludge. Pollution problem solved. Resource potentially lost.

Technologies including ion exchange, membranes, adsorption and electrochemical recovery can instead extract metals—but wastewater is harder than black mass. Concentrations may be tiny and chemistries messy. Recovering kilograms of nickel from vast volumes of dilute water can make little economic sense; recovering ruthenium may be entirely different.

Italy's Circular Materials (opens in a new tab) offers an intriguing test. The Padua company (which will be on a forthcoming Rare Earth Exchanges® podcast) reported industrial-scale recovery in 2025 of one kilogram of ruthenium and one metric ton of nickel from industrial wastewater.

That will not transform European mineral security. What matters is the concept: a waste stream carrying a disposal cost can potentially become feedstock.

REEx would still want to see the harder numbers—metal concentrations, recovery rates, product purity, energy and reagent consumption, residual waste and full operating economics—before extrapolating broadly. More surprising is that governments barely measure the opportunity. Neither the U.S. nor Europe appears to maintain a comprehensive inventory of recoverable critical metals moving through industrial wastewater. EIT RawMaterials estimates that thousands of tonnes of nickel, copper, chromium and platinum-group metals leave European industrial facilities dissolved in wastewater annually.

REEx Conclusion | Stop Counting Recycling. Count Recovered Metal.

A tonne entering a shredder is not a tonne of lithium recovered. Black mass is not a finished material. And metal moved from water into landfill-bound sludge has not been recycled. The West is making progress. But China retains a formidable advantage because recycling, refining and downstream manufacturing coexist inside one industrial ecosystem.

That makes waste another front in the critical-minerals contest. The next strategic deposit may not lie beneath Nevada, Australia or Greenland. Some of it is inside yesterday's battery. Some is hidden in industrial sludge. And some of it is flowing down the drain.

The mine already happened. The question is who captures the metal the second time around.