Pomegra
Group14 Technologies added a €150 million (about $169 million) Series D extension from an undisclosed investor to build a silicon-carbon battery materials plant in Spain.
Key Takeaways
- Group14 closed a €150M (about $169M) Series D extension on October 29, 2026, from one undisclosed new investor.
- Total Series D financing now exceeds $665M; the original $463M tranche in August 2025 was led by SK Inc.
- The new BAM-4 plant in Sagunto, Spain, adds 10 GWh and lifts near-term capacity to 40 GWh.
Lead
Group14 Technologies, the Woodinville, Washington maker of silicon-carbon battery anode material, closed a €150 million Series D extension on October 29, 2026. The money, roughly $169 million, came from a single new investor that the company has not named. Group14 will use it to build a plant in Sagunto, Spain, its first production site in Europe.
The extension pushes total Series D financing past $665 million. Group14 did not disclose a valuation for this tranche.
What Does Group14 Actually Make?
Group14 makes SCC55, a silicon-carbon composite that battery manufacturers use in place of part of the graphite in a lithium-ion anode. Silicon stores far more lithium than graphite, which raises energy density and can speed up charging. The material is already used in smartphones, drones, hypercars and electric vertical takeoff and landing aircraft.
The company says it serves more than 150 customers and supports manufacturers representing over 95% of global lithium-ion production. It holds more than 200 patents. Those are company figures, and the customer count covers many small buyers alongside a few large ones.
What Will the Spanish Plant Add?
The BAM-4 facility in Sagunto will start with one module of 10 GWh of annual capacity for SCC55. Group14 has not published a construction timeline or a headcount for the site.
The plant joins a manufacturing network that is mostly still under construction:
- BAM-1 in Woodinville, Washington, a commercial-pilot site operating since 2021.
- BAM-2 in Moses Lake, Washington, with 20 GWh across two modules, expected to come online in the first half of 2027.
- BAM-3 in Sangju, South Korea, a 10 GWh module that is operating and scaling.
- BAM-4 in Sagunto, Spain, with 10 GWh initially.
Together the Korean, Moses Lake and Spanish sites give Group14 a near-term footprint of about 40 GWh. Only the Korean module is producing at scale today, so most of that 40 GWh is still a plan rather than output.
How Does This Round Fit With the Original Series D?
The extension adds to a $463 million Series D that closed in August 2025 and was led by SK Inc. That round also drew Porsche Investments, ATL, OMERS and Microsoft's Climate Innovation Fund. Group14's total funding is now about $1.5 billion.
Raising another $169 million roughly 14 months after the main close suggests the Series D was sized for the plants already planned and not for a fourth one. Adding a European site needed more capital, and a single investor supplied it, probably under negotiated terms. The company has not said whether the extension was priced the same as the original tranche, and it has not published a valuation for either.
Why Build in Europe?
Group14 argues that battery materials should be made near the cell factories that consume them. CEO Rick Luebbe framed it this way in the announcement: "To truly transform the energy economy, battery material producers must be located where batteries are made."
European cell production has expanded, and it still depends heavily on anode material shipped from Asia. A local source shortens supply chains and can help customers meet regional content and sourcing requirements. Group14 has not named any European customer committed to buying from Sagunto, so the demand case rests on its existing client base.
What Are the Risks?
The central risk is execution. Group14 must bring Moses Lake online in 2027 and build Spain while ramping Korea, and it has run commercial-scale production at only one site so far. Silicon anode makers have a record of slipping schedules, and capacity listed in gigawatt-hours means little until cells shipped by customers consume it.
Demand carries its own uncertainty. Silicon-carbon anodes sell at a premium to graphite, and adoption in electric vehicles depends on automakers accepting the cost for added range or faster charging. Consumer electronics and aerospace buyers have been quicker to pay it.
Outlook
Group14 now has more than $665 million in Series D capital and a four-site plan that would reach 40 GWh. The next markers are the Moses Lake start in the first half of 2027, Sagunto construction milestones and any named European customers. Until those arrive, the extension shows that one investor was willing to fund European capacity, while the valuation and the investor's identity stay private.
