Cabot Corporation is expanding its battery materials production at existing plants in Franklin, Louisiana, and Pampa, Texas, backed by a modified $50 million U.S. Department of Energy grant. The company says it will invest approximately $75 million in the two-site expansion as part of a roughly $125 million domestic manufacturing program aimed at supplying conductive additives for lithium-ion batteries.
The project marks Cabot's latest push into battery materials, an area the company has been building out for years, according to citybiz. The DOE funding comes through the agency's Office of Critical Minerals and Energy Innovation, and the seed reporting indicates that Cabot and the department redirected funding originally tied to a Michigan project toward this two-site brownfield expansion, which relies on existing manufacturing infrastructure rather than new construction.
At the Franklin facility, Cabot plans to expand production of its LITX advanced battery-grade conductive carbons, building on what the company describes as an already established product line there. The Pampa site is slated to take on a more novel role: establishing Cabot's first commercial-scale production of carbon nanostructures in the United States, moving what the company calls its most advanced conductive additive technology into full manufacturing. Those carbon nanostructures fall under Cabot's Enermax product family and are intended to help address next-generation energy storage and electrification applications.
Why Conductive Additives Matter for Batteries
Conductive additives like the ones Cabot makes facilitate electrical conductivity in battery electrodes and are incorporated directly into them, helping improve overall battery performance. Cabot has said that its portfolio for lithium-ion batteries includes conductive carbons, carbon nanotubes, carbon nanostructures and blends of conductive additives, and that these materials help customers build more efficient, longer-life batteries for electric vehicles and energy storage, according to Cabot's own sustainability materials. The company has also said its fumed alumina is used in separator and cathode active-material coatings, while its aerogel can be worked into thermal barriers for lithium-ion batteries.
Cabot president and CEO Sean Keohane said demand for advanced batteries continues to expand across energy storage, electrification and emerging AI-related infrastructure, per the seed reporting. That framing points to a broader driver behind the investment: the seed facts note that computing facilities are increasing the need for energy storage, that electrical grid modernization continues to draw investment, and that AI infrastructure and data center development represent an additional source of battery demand beyond electric vehicles.
Investment Figures Have Shifted Over Time
The scale and timing of Cabot's Pampa plans have changed since the company first went public with them. Back in January 2023, Cabot announced plans to invest approximately $200 million in U.S. conductive carbon additives capacity over five years, including 15,000 metric tons of additional annual capacity at Pampa, according to a 2023 investor announcement from Cabot. At that time, the company said the Pampa project was expected to commence operations at the end of 2025 and would create approximately 75 jobs, with an estimated investment of $75 million to $90 million, per a Businesswire release from the same period.
The current facts describe a different timeline: both the Franklin and Pampa projects are now expected to be operational by the end of 2028, and the current investment figure is described as approximately $75 million for the two-site expansion. The dossier underlying this reporting does not explain what drove the shift from the earlier 2025 target and $75 million to $90 million range to the newer 2028 date and $75 million figure, so both versions are presented here rather than reconciled.
A Fast-Growing Product Line
Cabot's battery materials business has been growing quickly. The product line generated $29 million in EBITDA in fiscal year 2022, with revenue up 74% year over year, the company disclosed in its 2023 Businesswire announcement. Cabot has also pointed to broader market tailwinds, saying demand for critical battery materials such as conductive carbon additives was expected to grow globally by 20% to 30% over the following five years.
That earlier expansion push unfolded against a policy backdrop in which the Biden administration was pushing to establish a domestic electric-vehicle battery supply chain, according to Chemanager. That same reporting noted Cabot's plans to expand its manufacturing and technology footprint with new carbon nanotube powder and dispersion capacity over the following years, part of a broader buildout that now includes the Franklin and Pampa sites.
Cabot's Wider Manufacturing Footprint
Beyond batteries, Cabot operates a global manufacturing network and serves customers across North America, Europe and Asia. The company's broader product lines include reinforcing and specialty carbons, fumed metal oxides and aerogel, inkjet colorants, engineered elastomer composites, and masterbatches and conductive compounds. Cabot has framed the battery materials expansion as a way to leverage its existing manufacturing assets, saying localized production will give customers a more secure domestic source of critical conductive additives and support their growth with localized supply.
The company has also said it aims to achieve net-zero emissions by 2050 in line with the Paris Climate Agreement, and identifies the electrification of vehicle fleets and stationary energy storage as areas where it sees a critical role for its materials to play, according to its sustainability disclosures. With the Franklin and Pampa investments now tied to a federal grant, Cabot is betting that battery demand, whether from EVs, grid storage or AI-driven data centers, will keep climbing fast enough to justify the buildout.
