When Ascend Elements announced its $542 million Series D in September 2023, the deal was the largest funding round in U.S. battery recycling history and a marquee win for the climate-aligned capital coalition that backed it. BlackRock and Temasek’s joint venture Decarbonization Partners co-led the round alongside Singapore’s sovereign wealth fund and the Qatar Investment Authority, with participation from BHP Ventures, Fifth Wall, Hitachi Ventures and Mirae Asset, according to a company press release distributed via PR Newswire.
Less than three years later, on April 9, 2026, Ascend Elements filed for Chapter 11 protection in the U.S. Bankruptcy Court for the Southern District of Texas, TechCrunch reported. By Memorial Day weekend, the company’s partially built flagship plant in Hopkinsville, Kentucky had been auctioned in a Section 363 sale to Turner-Kokosing Joint Venture — the construction contractor that built the facility but was never fully paid for the work, according to bankruptcy-docket reporting by industry newsletter Critical Minerals Brief.
The collapse is the second major U.S. battery-recycling failure inside twelve months. Records suggest the sovereign and pension capital pouring into “decarbonization” labels has been concentrated in a narrow set of cleantech bets that depended simultaneously on cheap lithium math, sustained EV growth, and uninterrupted federal subsidy — three assumptions that all unwound in 2025 and 2026.
What $1.1 Billion Bought
Ascend Elements, founded in 2015 and based in Westborough, Massachusetts, marketed itself as the U.S. answer to Chinese dominance in battery materials. Its pitch — closed-loop “Hydro-to-Cathode” recycling that would turn end-of-life lithium-ion batteries into engineered cathode precursor for new EV packs — drew well over $1 billion in cumulative private and federal capital over its lifetime, according to a BatteryTech Online compilation tracking 12 battery and EV companies that filed for bankruptcy in 2026.
The capital stack told the story of a climate-investing moment. The September 2023 Series D was led by Decarbonization Partners, the late-stage growth fund jointly raised by BlackRock and Singapore’s Temasek that closed at $1.4 billion with commitments from more than 30 institutional investors across 18 countries — public pension funds, sovereign wealth funds, insurance companies and family offices, as ESG Dive reported. Ascend Elements was one of only two battery companies in the fund’s disclosed portfolio. The Qatar Investment Authority joined as a strategic co-lead, Decarbonization Partners noted in its own announcement.
A follow-on $162 million tranche in February 2024 brought in Just Climate — the climate-focused fund anchored by Generation Investment Management — alongside Clearvision Ventures.
Federal money layered on top. The Department of Energy awarded Ascend two separate Bipartisan Infrastructure Law grants tied to its Apex 1 site in Hopkinsville: $164 million for cathode active material (CAM) manufacturing and $316 million for cathode precursor (pCAM) infrastructure. The company received $206 million against the second grant before construction stalled, Recycling Today reported.
The Cracks Open
The first public sign that the thesis was breaking came in February 2025, when Ascend and the DOE “mutually agreed” to cancel the $164 million CAM grant. The company’s own statement attributed the move to “changing market conditions,” noting that customer demand for domestic CAM had collapsed relative to demand for pCAM, in a release published on the company website. One month later, Ascend paused construction in Hopkinsville and laid off staff after customers asked for first deliveries to slip 12 to 18 months, local outlet Hoptown Chronicle reported.
Underneath the polite “market conditions” language, the math had shifted. Lithium carbonate, which peaked above $80,000 per metric ton in late 2022, was trading near $12,000 by early 2026 — a roughly 85 percent decline that made recycled cathode precursor structurally uneconomic against fresh imported material, Benchmark Mineral Intelligence reported. Compounding the squeeze, automakers were rapidly shifting to lithium iron phosphate (LFP) chemistries that contain no nickel or cobalt — the very metals that gave recycled NMC streams their value.
By April 2026, the remaining $110 million tranche of the $316 million pCAM grant had been cancelled as part of a broader sweep at DOE’s Loan Programs Office, which is in the process of pulling or de-obligating roughly $83.6 billion in Biden-era clean-energy awards, Solar Power World reported. Without the federal backstop, the Hopkinsville site — designed at roughly 1 million square feet but only partially complete — had no near-term path to operation. Chapter 11 followed within days.
A Pattern, Not an Outlier
Ascend’s collapse is not idiosyncratic. Eleven months earlier, in May 2025, Canadian battery recycler Li-Cycle filed for creditor protection in both Canada and the United States, Canary Media reported. Li-Cycle held a $475 million DOE loan facility that it was never able to draw on because the loan required the company to raise $262.7 million in matching private capital it could not assemble. The assets ultimately landed with Glencore — the Anglo-Swiss mining giant whose coal and copper operations are routinely flagged by the same ESG screens that elevated battery recyclers as a preferred clean-energy allocation, trade publication Waste Dive reported.
The Federation of American Scientists, tracking DOE program cancellations, documents that the Loan Programs Office has terminated or de-obligated more than $29.9 billion in conditional loan commitments since January 2025, with another $8.5 billion publicly flagged for cancellation. Beyond the recyclers, the 2026 battery-and-EV insolvency cohort tracked by industry compilers includes both upstream cell-makers and downstream charging and assembly companies. The bankruptcies, grant cancellations, and layoffs accumulating across the sector suggest the gap between investor expectations and market reality is proving costly.
The ESG Disclosure Question
The collapse raises a question that ESG-fund disclosures have not been asked to answer: how the same institutional capital that drove Ascend’s $542 million Series D should mark down its position, and how investors in those vehicles will be told. Decarbonization Partners’ Fund I closed at $1.4 billion — 40 percent above its $1 billion target — on the strength of an institutional roster that included public pension funds and sovereign wealth funds, as ESG Today reported. BlackRock has not separately disclosed any writedown attributable to Ascend in its public filings, and Temasek’s annual review does not provide line-item portfolio detail.
The Securities and Exchange Commission’s recent formal withdrawal of its 2022 proposed ESG fund-disclosure rule, confirmed by ESG Dive, leaves no federal vehicle for forcing standardized reporting on which “decarbonization” or “climate transition” funds bought into the now-bankrupt battery-recycling cohort and at what valuation. Investors in such funds — including, in many cases, state pension beneficiaries whose retirement money flowed through Decarbonization Partners’ limited-partner roster — have no consolidated way to see the loss.
Sovereign exposure is also opaque. Qatar Investment Authority does not file consolidated U.S. portfolio reports; Temasek’s annual review groups its private holdings without listing individual writedowns. What public records do show is the sequencing: the same closed-loop battery thesis was repeatedly underwritten by sovereign and pension capital between 2022 and 2024, on the basis of lithium prices that no longer obtain and federal subsidies that no longer flow.
What the Sale Reveals
The buyer at the Hopkinsville auction is the cleanest signal of what the project was actually worth. Turner-Kokosing Joint Venture, the contractor consortium that built the partially complete facility, won the 363 sale after Ascend’s invited backup bidder — American Battery Technology Company, which holds a separate DOE grant under the same program — declined to meet the contractor’s price, Critical Minerals Brief reported. TKJV’s bid amounts in substantial part to a credit against the unpaid construction liens it had already filed; in effect, the contractor took the building in lieu of cash it was owed.
That is not an indicator of cathode-precursor demand. It is an indicator that the facility’s value, stripped of subsidy and the speculative pricing assumptions baked into the original capital raises, is what a builder would accept to recover its own construction work.
What remains unknown is how Decarbonization Partners and its institutional limited partners are now marking the position, whether Qatar Investment Authority will pursue claims in the bankruptcy estate, and whether the SEC’s enforcement division will revisit ESG-fund marketing claims tied to portfolio companies whose underlying business cases have publicly collapsed. The SEC’s prior $4 million greenwashing settlement with WisdomTree Asset Management and its $17.5 million settlement with Invesco Advisers establish that the agency can act when fund marketing diverges from fund holdings. Whether it will act when fund holdings simply fail — not because they were misrepresented, but because the underlying thesis was wrong — is a separate question. Investors will be left to answer it for themselves as the next DOE-cancelled cleantech ledger arrives.