Vulcan Energy’s Frankfurt Spade Hits Dirt as €40 Million Siemens Deal Caps Supplier Lineup

The paperwork phase is officially over for Vulcan Energy. After months of planning and procurement, the lithium developer has broken ground on its central refinery in Frankfurt’s Industriepark Höchst, pushing the Lionheart project into full construction mode. The milestone sent shares surging 17% to $2.70 on Friday, snapping a prolonged downtrend and pushing the stock back above its 50-day moving average.

The Frankfurt facility will convert lithium chloride into battery-grade lithium hydroxide via electrolysis, targeting an annual capacity of 24,000 tonnes — enough to equip roughly half a million electric vehicles. The plant will also feed renewable electricity and heat into the local grid, adding a circular-energy dimension to the project.

Siemens and Mersen Lock In Final Contracts

The construction start was preceded by a flurry of supplier agreements. Siemens secured the last major contract, worth €40 million, to deliver automation and safety systems across the entire production chain. The Munich-based industrial giant had already invested €67 million in equity into Vulcan, deepening a partnership that now spans both capital and technology.

Earlier this week, Vulcan awarded a multi-million-euro order to Mersen for a critical plant component. On the offtake side, the company has already locked in agreements with Stellantis, LG Energy Solution, and Umicore for the first phase of production, removing demand uncertainty from the equation.

Political Backing and a Cost Break

The groundbreaking ceremony drew Hesse’s minister-president Boris Rhein and Frankfurt’s mayor Mike Josef, underscoring the project’s strategic importance for Europe’s battery supply chain. The political tailwind extends beyond optics: Rhineland-Palatinate has exempted Vulcan’s future lithium extraction from royalty fees through at least 2030, a move that materially lowers projected production costs.

Should investors sell immediately? Or is it worth buying Vulcan Energy?

Cash Burn and the Capital Question

The euphoria on the stock exchange will soon collide with hard numbers. Vulcan reports its first-quarter results on April 29, and analysts expect a sharp increase in cash burn as construction accelerates at the Schleidberg and Trappelberg sites. In the prior quarter, operating cash outflow stood at just over €7 million.

A banking consortium has committed billion-euro credit lines, supplemented by state subsidies, to fund the first phase. But management has signaled that additional capital will be needed before the plant reaches full production capacity in 2028, raising the specter of shareholder dilution.

Next Stops: Perth and Landau

CEO Cris Moreno will lay out second-half 2026 targets and reaffirm the production timeline at the annual general meeting in Perth on May 28. Meanwhile, investors are watching the parallel buildout of the extraction facility in Landau, where Vulcan must maintain the same schedule discipline to keep the entire Lionheart chain on track.

On a monthly basis, the ADRs have rallied roughly 33%, though the stock remains notoriously volatile with annualized swings of 124%. The next catalyst will be whether the Q1 report confirms that the construction phase is proceeding on budget — or whether the capital markets will need to open their wallets again sooner than expected.