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• Strategic leadership in construction management for Rolls-Royce SMR projects in the UK and the EU.
• Builds on HOCHTIEF’s seven-decade nuclear track record and advanced modular construction expertise.
• Reinforces ACS Group’s strategy to expand across the nuclear value chain and energy infrastructure markets.
HOCHTIEF has an unbroken track record in nuclear since the 1950s, and has been involved in nuclear power plants with an overall output of 37 GW globally.
With Rolls-Royce SMR’s Program Delivery Partner Amentum, a global leader in advanced engineering and innovative technology solutions, HOCHTIEF will support the construction management for Rolls-Royce SMR projects (rolls-royce-smr.com) in the United Kingdom and the European Union. The first deployments will be in the UK and in the Czech Republic.
The Memorandum of Understanding (MoU) announced today will lead to a collaborative agreement which positions Amentum and HOCHTIEF at the forefront of next-generation nuclear power delivery, leveraging its advanced modular construction expertise and global footprint to ensure build certainty, cost and schedule efficiency, and repeatable high-quality outcomes.
ACS Group and HOCHTIEF Chief Executive Officer and CIMIC Group Executive Chairman Juan Santamaría said: “The Rolls-Royce SMR program is a landmark for the global energy transition and a defining moment for HOCHTIEF. Our decades-long nuclear expertise, combined with leadership in modular construction and major project delivery, positions us to accelerate SMR deployment worldwide. Working closely with governments and communities to create local jobs and deliver lasting benefits is central to this program.”
“This win reinforces our strategy to become a leading engineering, procurement and construction management provider for nuclear projects, leveraging synergies with our adjacent growth verticals such as data centers, defense and critical minerals, to deliver secure, low-carbon power for generations to come.”
Exponential Growth in Nuclear Market
The global nuclear market is entering a phase of exponential growth, driven by ambitious decarbonization targets, energy security concerns, and the need for reliable baseload power. At COP28, more than 25 countries committed to tripling nuclear capacity to 1,200 GW by 2050. The addressable pipeline for nuclear projects is set to expand significantly, with cumulative investments expected to reach over €600 billion by 2040. In the mid-term (2025 2030), the market will be driven by newbuilds of Large-Scale Reactors (LSR) and Small Modular Reactors (SMR), as well as decommissioning, life extension, fusion, and front-/back-end projects.
A Trusted Partner in Nuclear for Over 70 Years
HOCHTIEF’s end-to-end capabilities span design and engineering, construction, decommissioning, and waste management, supporting the safe operation, modernization, and decommissioning of critical nuclear facilities.
Uniquely combining leadership in major project delivery and modular and offsite construction, with nuclear expertise and global scale enables HOCHTIEF to support the next generation of nuclear projects delivering value for clients, investors, and communities worldwide.
The ACS and HOCHTIEF Group has been involved in construction, retrofitting, maintenance and dismantling of three of the seven nuclear power plants in Spain; and involved in the development and delivery of 13 of the 20 nuclear power plants in Germany.
Recent and current flagship projects include:
• Sellafield (UK): Infrastructure Delivery Partnership forthe civil infrastructure supporting the ongoing operations and decommissioning.
• Temelín Nuclear Plant (Czech Republic): Construction of two 1000 MW reactor blocks.
• Konrad II Repository (Germany): Multi-year design services for nuclear waste management.
• Olkiluoto 3 (Finland): Role in the design and construction management of a 1.6 GW plant.
About HOCHTIEF
HOCHTIEF (hochtief.com) is an engineering-led global infrastructure solutions provider with leading positions in North America, Australia and Europe and a strong presence in the rapidly expanding strategic growth markets of data centers, energy and sustainable infrastructure markets. With around 57,000 employees and a sales volume of EUR 33.3 billion in 2024, HOCHTIEF is the leading construction management and green building company in the U.S. (through Turner), the largest contractor in the Australian infrastructure services market (CIMIC), a key player in U.S. transportation infrastructure (FlatironDragados) and a renowned civil engineering and building construction company in Europe. The Group’s PPP and infrastructure development activity is complemented by its 20% stake in the leading international toll road concessions operator Abertis. HOCHTIEF’s strong competitive position is underpinned by the Group’s engineering know-how, innovative digital systems and supply chain & logistics solutions. Thanks to its long-standing commitment to sustainability, HOCHTIEF, where green projects account for almost 50% of Group sales, has been listed in the Dow Jones Sustainability Indices since 2006 and is committed to delivering on its ESG agenda including a net-zero target for 2045.
About Amentum
Amentum (amentum.com) is a global leader in advanced engineering and innovative technology solutions, trusted by the United States and its allies to address their most significant and complex challenges in science, security and sustainability. Our people apply undaunted curiosity, relentless ambition and boundless imagination to challenge convention and drive progress. Our commitments are underpinned by the belief that safety, collaboration and well-being are integral to success. Headquartered in Chantilly, Virginia, we have approximately 50,000 employees in more than 70 countries across all 7 continents.
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