EnergyX and Wildcat Plan a More Than $230 Million LFP Cathode Plant in Texas, Co-Located With Lithium Supply
On June 5, Energy Exploration Technologies (EnergyX) and Wildcat Discovery Technologies announced a joint venture to build a cathode active material plant on 330 acres at the TexAmericas Center in Texas. Phase 1 is designed for roughly 15,000 metric tonnes per year of lithium iron phosphate cathode active material, at a total cost of more than $230 million. The plant is to sit next to EnergyX’s Project Lonestar lithium operation, which is slated to supply the lithium carbonate the cathode line consumes. Wildcat Discovery Technologies, the technology partner, is a unit of Sweden’s Holyvolt Group.
What the plant makes. Cathode active material, or CAM, is the powder applied to a cell’s positive electrode. It is a distinct manufacturing step that sits upstream of cell assembly: a cell plant takes finished cathode powder and turns it into cells, but it does not produce the powder itself. That distinction has carried little commercial weight in the United States, because almost all LFP cathode powder is made in China.
The localization gap. American battery localization has so far concentrated on cells and gigafactories. Domestic LFP cell efforts now include Ford Energy, the LG Holland plant, and American Battery Factory. Cathode, the step that sits between raw material and finished cell, has remained almost entirely offshore. The EnergyX and Wildcat venture is an attempt to address that step rather than the one downstream of it.
Where the cost lives. According to the joint venture announcement, lithium precursor materials account for 60 to 85 percent of the bill of materials for LFP cathode production. EnergyX is to supply that lithium from the adjacent Lonestar plant. Because the precursor accounts for the majority of cathode cost, the economics of a cathode plant are largely determined by the cost and proximity of its lithium feed. The companies describe the co-location of lithium extraction and cathode production on a single site as a vertically integrated, fully domestic LFP material chain.
Why cathode is the binding constraint. The foreign-entity-of-concern (FEOC) rules attached to the storage investment tax credit require a rising share of a battery’s material value to be free of prohibited foreign content for a project to retain the full credit. Two screens govern that credit: the FEOC material assistance cost ratio, which stands at 55 percent in 2026 and steps up to 75 percent by 2030, and a domestic-content threshold of 50 percent. Together they determine whether a US-assembled storage system retains a credit that can reach 30 percent or more. Cathode powder is where the test is hardest to satisfy, because that is where Chinese supply is most concentrated. A developer can buy domestically assembled cells and still fail the material test if the cathode inside them traces back to China. Domestic cell capacity without domestic cathode is a partial answer; the credit calculation turns on the full chain.
The scale. Fifteen thousand metric tonnes per year is a Phase 1 figure, and it is the only phase with a design number attached. It represents a single facility, one of a small set of recent additions to US LFP material and cell capacity rather than a complete domestic supply chain or a replacement for Chinese cathode supply on its own.
What is not yet settled. The announcement does not give a production-start date. Offtake terms, the contracts that would route the material to named cell makers, have not been disclosed. Phase 1 is the only stage with a published capacity figure, and further phases are referenced without detail. Each of those is a step the project has yet to complete.
Who the economics reach. The buyers most exposed to the outcome are those whose credit depends on domestic-content and FEOC compliance, which includes anyone claiming the storage ITC. Because the material threshold tightens each year, a compliance path that clears the test in 2026 can fall short in 2028 on the same bill of materials. Domestic cathode availability is the difference between meeting the test by paying a premium and meeting it at a competitive cost. By the figures cited in industry reporting, US LFP cells have run more than 40 percent above Chinese pricing, and that gap originates upstream of the cell, in the cathode powder. For commercial and industrial buyers, the FEOC and domestic-content screens are the same ones that decide whether a US-assembled storage system retains its full credit, and those screens are settled by what the cathode is made of and where it is made. A lower-cost, FEOC-clean domestic cathode supply reduces the compliance cost embedded in every system built on it.
The United States has demonstrated over the past two years that it can assemble cells. Whether it can produce the cathode powder inside them without routing through China is a separate question. The EnergyX and Wildcat venture is one attempt at an answer, at a cost the companies put above $230 million. Whether it yields competitively priced material, and on what timeline, is what the offtake contracts will eventually show.
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