Vulcan Energy's Lionheart Project Nears Full Construction Phase as Siemens and Mersen Join the Lineup
Published on 04/24/2026 at 00:00 | Redaktion boerse-global.de
The final pieces of Vulcan Energy's supplier puzzle have clicked into place, with two major industrial partners signing on for the company's Lionheart lithium project in Germany's Upper Rhine Valley. The development marks a critical transition from planning to building for what is set to become Europe's first fully integrated commercial lithium and renewable energy operation.
French industrial group Mersen has been tapped to deliver an Eco&FLEX® unit for the Frankfurt site, tasked with converting lithium chloride into battery-grade lithium hydroxide. The system also recovers chlorine and energy from the production loop, using a combination of isostatic high-purity graphite and proprietary carbon impregnation technology to generate the ultra-pure hydrochloric acid required for the process. While Vulcan has not disclosed the exact contract value, it is understood to run into the double-digit millions.
The Mersen deal follows hard on the heels of a far more substantial agreement with Siemens, which goes well beyond a standard supplier arrangement. The Munich-based conglomerate will serve as the main contractor for automation, digitalization, telecommunications, and building technology across the Lionheart project — covering the lithium extraction plant in Landau, the central lithium facility in Frankfurt-Höchst, and the production well sites. The framework agreement, valued at roughly €40 million, runs as a preferred supplier arrangement through 2035 and extends to future development phases beyond Lionheart.
But Siemens is also putting capital on the table. Its financial services arm is contributing €67 million in equity, slotting into Vulcan's broader €2.2 billion financing package secured in December 2025. That package consists of €1.185 billion in senior debt from a 13-bank consortium and €204 million in German state grants.
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Siemens is not the only industrial heavyweight taking a direct financial stake. Construction group HOCHTIE has invested a total of €169 million, including €130 million in a cornerstone share placement that gave it a 15.41% stake. At the annual general meeting on May 28, shareholders will vote on the appointment of Roberto Gallardo, HOCHTIE's nominee, as an independent director.
On the regulatory front, the state of Rhineland-Palatinate has exempted Vulcan from lithium royalties through the end of 2030, aiming to foster a domestic battery supply chain. The Insheim site has also received its first commercial production license under the LiThermEx framework, valid for six years.
Vulcan is targeting 2028 for the start of commercial production, with an annual capacity of 24,000 tonnes of lithium hydroxide monohydrate — enough for roughly 500,000 electric vehicle batteries. The project will also generate 275 GWh of renewable electricity and 560 GWh of heat annually for regional customers. The entire Phase 1 output is already spoken for through offtake agreements with Stellantis, Glencore, LG Energy Solution, and Umicore. Stellantis alone has secured 128,000 tonnes over ten years, while LG Energy Solution is contracted for 31,000 tonnes over six years, Umicore for 23,000 tonnes over the same period, and Glencore for 36,000 to 44,000 tonnes over eight years.
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With the supply chain now effectively complete, investor attention is shifting to execution speed and capital discipline. In the most recent quarter, Vulcan burned through €7.2 million in operating cash. The company is now drilling simultaneously at two sites — Schleidberg and Trappelberg — for the first time. The March quarter report, due April 29, will provide the first real glimpse of whether management can keep a lid on cash outflows while construction accelerates.
At the Australian Securities Exchange, Vulcan's shares closed Thursday down 2.75% at A$3.54, giving the company a market capitalization of roughly A$1.21 billion. The company remains pre-revenue, making the upcoming quarterly update a key test of investor confidence in the project's trajectory.
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