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Rolls-Royce, Japan Atomic Energy Agency to Cooperate on Advanced Nuclear Technologies in $24 Billion UK-Japan Package

worldjapaneuropebusiness 5 posts · 5 accounts

Rolls-Royce, the United Kingdom National Nuclear Laboratory and the Japan Atomic Energy Agency agreed to cooperate on advanced nuclear technologies, adding a concrete nuclear component to the broader UK-Japan investment and technology package previously described as worth $24 billion, or about £18 billion.

The nuclear tie gives more detail to an earlier UK-Japan plan centered on clean energy and technology partnerships. By naming Rolls-Royce, the UK National Nuclear Laboratory and Japan's atomic energy agency, the latest announcement turns a broad investment framework into a specific area of collaboration.

From the sources (5 posts)

@business

UK, Japan Plan to Sign £18 Billion Clean Energy Investment Deal

@reuters

UK, Japan set to agree $24 billion investment, tech partnerships

@kalshi

JUST IN: Japan signs nuclear deal with Rolls Royce

@coinvo

HUGE: 🇯🇵 Japan has signed a nuclear deal with Rolls Royce to build modular reactors.

@rollsroycepress

Rolls-Royce, United Kingdom National Nuclear Laboratory and Japan Atomic Energy Agency to co-operate on advanced nuclear technologies

Preview built on a synthetic news corpus (16 weeks, Apr–Jul 2026). Impact calls are model reads, not price data.

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