HOCHTIEF selected as part of Amentum’s global project delivery team for Rolls-Royce Small Modular Reactor (SMR) Nuclear program

• 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 will support Amentum in the global program to deploy Rolls-Royce SMRs, marking a major milestone in its strategy to expand leadership in the nuclear sector and support the energy transition.

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 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.

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