Vulcan Energy’s Lionheart Construction Kicks Off, But Investors Are Watching the Cash Burn

Vulcan Energy breaks ground on Europe's first domestic lithium supply chain, but shares fall 14% as €2.2B cost and cash burn raise investor concerns.

The ceremonial spade has hit the ground in Frankfurt, but the market’s reaction tells a different story. While politicians celebrated the start of construction at Vulcan Energy Resources’ Lionheart plant in Industriepark Höchst, the company’s shares tumbled 14 percent on the same day to €1.97. That disconnect between political fanfare and investor caution is now the central tension for a project that aims to deliver Europe’s first domestic lithium supply chain.

What’s Being Built

Lionheart is designed to convert lithium chloride into battery-grade lithium hydroxide monohydrate, with an annual capacity of 24,000 tonnes — enough to supply roughly 500,000 electric vehicle batteries each year. The facility will also generate approximately 275 GWh of electricity and 560 GWh of heat annually from renewable sources, both destined for local off-takers in the Frankfurt region.

CEO Cris Moreno has set a clear timeline: commercial operations are slated to begin in 2028. Upstream extraction is already underway, with a groundbreaking for the adjacent production site in Landau, in the Upper Rhine Valley, taking place last year.

The €2.2 Billion Price Tag

The construction go-ahead was made possible by a €2.2 billion financing package secured in December 2025, which triggered the final investment decision for Lionheart. But the quarterly report released this week lays out the financial reality in hard numbers. The company burned through €7.2 million in the last quarter on personnel and project development alone, and that cash outflow is expected to accelerate as work ramps up across the Upper Rhine Graben.

Vulcan currently holds cash reserves of €523 million. Management is targeting the 24,000-tonne production milestone by 2028, but achieving that goal will require additional capital. The prospect of shareholder dilution remains a live issue.

Siemens Closes the Supply Chain

Just days before the quarterly figures landed, Vulcan secured a critical partner. Siemens is supplying the full automation and building technology package for Lionheart at a cost of €40 million, and is also contributing €67 million in equity. That deal effectively closes the last major supply contract for the project, completing the chain from raw material extraction to finished battery-grade lithium.

At the Schleidberg and Trappelberg sites, drilling is already underway. The lithium chloride extracted there will eventually be shipped to Frankfurt, where the electrolysis plant will transform it into battery-ready lithium hydroxide.

A Cheap Stock, But Questions Linger

The shares have staged a technical recovery in Australia, climbing to A$3.80 and breaking through key moving averages. But the fundamental valuation remains subdued. A price-to-book ratio of 1.2 reflects persistent doubts about whether the timeline and budget will hold. Rivals in the sector trade at significantly higher multiples.

The commercial foundation is in place. Long-term offtake agreements with Stellantis and LG secure the majority of planned output. On May 28, management will face shareholders at the annual general meeting in Perth, where CEO Cris Moreno will need to convince investors that the cost framework for this billion-euro project is solid.

Hesse’s Minister-President Boris Rhein and Frankfurt’s Mayor Mike Josef were on hand for the groundbreaking — a sign of the political weight behind domestic lithium production as a strategic tool for supply security and reducing import dependence. Vulcan is using an adsorption-based direct extraction technology, which the company says is more efficient than conventional methods and aligns with the project’s 30-year sustainability goals.

With construction now underway in Frankfurt, the first European production site for domestically sourced battery lithium is moving from blueprint to reality. Whether the budget and schedule hold until 2028 is the question that will define this project — and this stock.