The company will design and manufacture for the BWRX-300 reactor to be installed at Darlington, Ontario, a large forged and machined assembly made from a high-nickel alloy and intended for a safety-critical area of the reactor cooling system.

• This is a unique component in terms of its design and technical complexity, highlighting Tubacex’s unique capabilities in advanced materials, engineering and manufacturing for high-safety nuclear applications.
• The project will be developed by Tubacex’s team at its facilities in Italy, which specialises in the design and manufacture of seamless components and structures for the nuclear energy sector.
• This first order from GE Vernova Hitachi expands Tubacex’s collaboration with the world’s leading nuclear technology providers and complements the framework agreements already in place with Westinghouse and EDF, reinforcing its position as a qualified supplier for new-generation nuclear projects.
• Tubacex strengthens its role as an industrial partner in new-generation nuclear projects and advances its positioning within a technology that will be key to the future of energy: small modular reactors.

Bilbao, 16 July 2026. Tubacex has received an order from GE Vernova Hitachi Nuclear Energy for the design and manufacture of a critical component for the BWRX-300 small modular reactor to be installed at the Darlington nuclear site in Ontario, Canada. The project forms part of the development of GE Vernova Hitachi’s first BWRX-300 small modular reactor in Canada, being promoted together with Ontario Power Generation. This technology is expected to become an international reference within the new generation of small modular nuclear reactors, designed to provide stable, safe and carbon-free energy.

The component commissioned from Tubacex will be installed in a critical area of the reactor and has been specifically designed to meet the most demanding technical requirements.

The order, will be developed by Tubacex’s team in Italy, which specialises in the design and manufacture of seamless components and structures for nuclear applications. This capability combines metallurgical expertise, industrial experience and mastery of advanced manufacturing processes, essential factors for meeting the needs of an industry subject to the highest quality and safety standards.

The award is the result of several months of joint engineering work between the Tubacex and GE Vernova Hitachi Nuclear Energy teams. This collaboration has made it possible to develop a specific solution for the BWRX-300, adapted to the technical and operational requirements of the Darlington project. Tubacex expects this first reference to provide a basis for participating in future units using this technology that may be developed in other markets.

GE Vernova Hitachi’s confidence in Tubacex represents a significant milestone in the company’s positioning in the nuclear sector and, in particular, within the SMR value chain. GE Vernova Hitachi’s BWRX-300 is a small modular reactor with an electrical output of approximately 300 MW, designed to provide stable and carbon-free generation. Its deployment in Canada is being closely followed by other markets assessing the potential of this technology to strengthen their energy security, reduce emissions and respond to increasing electricity demand, particularly in a context shaped by electrification, the energy transition and the growth of energy-intensive consumption such as data centres.

GE Vernova Hitachi has established itself as the leading technology provider in the development of small modular reactors and, in addition to this project, has a potential pipeline of installations in the United States, where the nuclear regulatory authority is reviewing Tennessee Valley Authority’s application to build a unit at Clinch River, Tennessee; in Europe, where the company is advancing the development of the reference design for the deployment of this technology in Poland and has completed a new phase of its regulatory assessment in the United Kingdom; and in Southeast Asia, where it is exploring business opportunities.

For Tubacex, this order reinforces a strategic growth area in high-value-added nuclear applications. The company already holds an established position as a reference supplier to international customers in the nuclear sector, with framework agreements with Westinghouse and EDF, supported by its deep knowledge of advanced materials, its seamless material manufacturing capabilities and its experience in industrial solutions designed to operate under critical conditions of pressure, temperature, corrosion and safety.