The biggest stormwater retention tank in the world

ACS Group and HOCHTIEF Group have an uninterrupted track record in the nuclear sector since the 1950s, an experience that firmly establishes us as a trusted partner for our clients.

ACS Group has expanded its partnership with Germany‑focused Vulcan Energy, the world’s first sustainable lithium and renewable energy business, and will have an end‑to‑end role in developing its lithium production and processing infrastructure.

ACS’s strategy is to expand across the critical minerals and energy transition value chain, building an integrated presence in investment, extraction, processing and infrastructure.

ACS Group is a global force in critical minerals – delivering end-to-end solutions across lithium, copper, nickel, vanadium, rare earths and more.

From Europe to North America, Australia to Asia, ACS is enabling the clean energy future through engineering-led infrastructure, mineral processing innovation, and strategic partnerships.

Critical metals lie behind the transformation the world is undergoing. They are vitally important for energy transition, cutting‑edge manufacturing and technological development. Without them it would be impossible to progress towards a more sustainable, secure and digital economy. The ACS Group is in a unique position in this sector.

ACS companies—including Turner and FlatironDragados in the United States, HOCHTIEF in Europe, CIMIC in Asia-Pacific, and Dragados in Europe and Latin America—deliver defense, security, and public safety infrastructure tailored to regional security requirements.