The United States is turning shredded lithium-ion batteries into a trade-control issue. The Commerce Department is moving to restrict exports of black mass , the mineral-rich output from processed battery scrap, along with tungsten scrap. The rule is designed to keep more critical-minerals feedstock in the domestic market for at least one year. Reuters reported on August 6 that the restriction starts August 27, 2026, with waivers available case by case. The order covers black mass from lithium-ion batteries because it can contain recoverable lithium, nickel, cobalt, manganese, copper, and graphite. For battery recyclers, that changes black mass from a tradable intermediate into a strategic input that Washington wants processed closer to home. AI-generated image A new export-control rule puts battery recycling feedstock at the center of U.S. critical-minerals policy. Aug. 27 Restriction start date 1 year Initial control period 6+ Battery minerals in black mass U.S. Domestic-buyer focus What the Rule Changes Battery recyclers have often sold black mass into whichever refining market paid the strongest price. That has made commercial sense because overseas processors, especially in Asia, have deep experience handling mixed battery feedstock and converting it into battery-grade or metal-market products. The new U.S. restriction interrupts that route by requiring covered material to be sold domestically unless the seller receives an exemption. The policy does not magically create refining capacity. It does change bargaining power. Domestic recyclers and materials companies should see more available feedstock, while exporters lose some flexibility. If U.S. processors can buy black mass on steadier terms, they have a better shot at financing plants that recover lithium, nickel, cobalt, manganese, copper, and graphite for new batteries. The tungsten side of the rule shows why battery scrap is being handled through a national-security lens. Tungsten is used in defense and industrial applications, and the U.S. has limited domestic mine supply. Black mass sits in a different market, but the logic is similar. If valuable scrap leaves the country before domestic processors can bid for it, the United States remains exposed to overseas refining chokepoints. AI-generated image Export limits can help domestic processors only if they can turn more feedstock into qualified material. Why Black Mass Is Now a Policy Target Black mass is not waste in the ordinary sense. It is the concentrated residue left after batteries are discharged, dismantled, shredded, sorted, and separated. Depending on the feedstock mix, it can hold cathode metals, graphite, copper, aluminum, electrolyte residue, binders, plastics, and other materials. Its value depends on chemistry, contamination, metal prices, processing cost, and the buyer's ability to refine it safely. The export-control move arrives as U.S. battery recycling is trying to graduate from collection and shredding into deeper materials production. Redwood Materials, Ascend Elements, Li-Cycle, Cirba Solutions, and other players have argued that domestic recycling can supplement mined supply and reduce reliance on China-dominated refining networks. That argument gets stronger when policy pushes more feedstock into the U.S. market. There is a practical catch. Recyclers need consistent inbound material, but they also need customers that trust the recovered output. Battery-grade salts, precursor materials, cathode active material, graphite products, and copper products all face quality gates. A rule that keeps black mass in the country helps only if downstream processors can convert that material into products that cell makers, automakers, and industrial buyers will qualify. The feedstock question The rule may increase domestic access to black mass, but the harder test is whether U.S. plants can process it at cost, at scale, and with chemistry control tight enough for battery buyers. Winners, Pressure Points, and Waivers The clearest near-term winners are domestic refiners that were competing against export buyers for scrap and black mass. More local supply can support capacity utilization, lower procurement risk, and improve the case for new recovery lines. Companies with existing processing assets could use the rule to negotiate longer contracts with collectors, insurers, automakers, repair networks, and pack manufacturers. The pressure lands on exporters, brokers, and recyclers that relied on overseas buyers for price discovery or processing capacity. Some may apply for waivers if material needs to leave the United States for specialized processing and return later. Others may need to form domestic partnerships quickly. The rule gives industry a short runway, because the effective date is less than a month after the announcement. The waiver process will matter. If exemptions are narrow, the policy could quickly redirect material flows. If exemptions are common, the restriction may operate more like a reporting and screening tool than a hard wall. Buyers and sellers will also watch whether the one-year period is extended, narrowed, or replaced by a more permanent system after Washington sees how the market reacts. AI-generated image Recovered battery minerals still have to pass technical and commercial qualification before they become new battery supply. The Price Signal Could Cut Both Ways Keeping black mass at home may lower feedstock prices for U.S. refiners if export demand had been setting a premium. That would help processors that are trying to survive low lithium prices and uneven end-of-life battery volumes. It could also hurt collectors if domestic buyers cannot match previous export bids. In that case, some scrap flows may slow unless contracts or regulation force material into proper recycling channels. The policy also intersects with EV demand, grid-storage growth, and factory scrap. The first large wave of end-of-life EV packs is still building, but manufacturing scrap is already a meaningful feedstock source. As U.S. cell and pack plants ramp, scrap handling becomes part of the manufacturing supply chain, not just an environmental service. Export controls make that loop more domestic by design. For automakers, the rule is a reminder that recycled content is becoming a sourcing issue. A domestic stream of recycled lithium, nickel, cobalt, manganese, graphite, and copper could reduce exposure to geopolitics and help with carbon accounting. The risk is that policy gets ahead of processing capacity, leaving material trapped in a market that cannot yet refine enough of it into bankable products. How This Fits the Global Battery Trade Fight Battery supply chains were already being reshaped by tariffs, domestic-content rules, critical-minerals agreements, and China export controls on selected materials. Black mass adds a new layer because it is both a waste stream and a resource stream. Once it becomes valuable enough, governments stop treating it as ordinary scrap. Europe is moving in a similar direction through battery regulation and tighter treatment of battery waste exports, especially where material could leave regulated markets without strong recovery standards. The U.S. approach is more direct for now: keep covered material available to domestic buyers while officials assess supply risk. Both paths point to the same commercial outcome. Battery recyclers will face more documentation, more scrutiny, and more pressure to show where recovered minerals go. That does not mean every country will become self-sufficient. Battery materials are traded because mining, processing, cell manufacturing, and recycling capacity are spread unevenly. The export-control rule is better understood as a leverage tool. It gives domestic processors first claim on a valuable stream and tells foreign buyers that U.S. scrap is no longer frictionless supply. AI-generated image Black mass is becoming part of industrial policy as governments try to s