Exaion, EDF and the American shadow: The takeover that worries Bitcoin miners

Sometimes, behind a simple "industrial investment," a piece of a country's technological and energy future is at stake. This is precisely what seems to be happening today in France with the subsidiary Exaion, EDF's "high-performance computing & blockchain" division, and the acquisition offer from the American giant MARA Holdings.

This case crystallizes issues that are much broader than the simple transfer of shares: digital sovereignty, valorization of nuclear energy surpluses, bitcoin mining as an industrial lever, all at the heart of a segment of France that wants to remain in control of its critical infrastructure.

The acquisition of Exaion by the American company MARA

The company Exaion was launched by EDF to harness the power of its infrastructure such as nuclear power plants, dams, high-voltage lines in high-performance computing (HPC), sovereign cloud computing and potentially cryptocurrency mining.
On the other hand, MARA Holdings is a major American player in Bitcoin mining. In 2025, the American company proposes to acquire 64% of Exaion's capital (with an option to increase to 75%). EDF deal would consist of selling 64% of Exaion to Mara for $168 million.

The French government, through the Directorate General of the Treasury, has initiated a procedure to control foreign investments. 

Points of friction: why some stakeholders are worried

• Non-compete clause

According to several sources, the deal would require EDF to refrain for 24 months from any high-performance computing or cloud computing activities that compete with Exaion. This potentially includes mining, AI, and cloud computing. For an established player like EDF, this means freezing a portion of its efforts in the race for innovation.

• Energy surpluses and mining

French nuclear power plants generate surpluses at certain times. Bitcoin mining, offering flexibility in consumption, can be used to leverage these surpluses and stabilize the grid. If Exaion comes under majority external control, France could lose this strategic advantage.

• Digital Sovereignty & Cloud Act

Entrusting sensitive infrastructure to an American company raises further questions related to personal information: data access, technological dependence, and geopolitical influence. Even if the offer only mentions financial investment, it's clear that the impact goes far beyond that.

Reactions and the proposed French alternative

In response to this acquisition, a movement has formed around blockchain entrepreneurs, members of parliament, and French mining stakeholders, represented by, among others, Sébastien Gouspillou, the CEO of BigBlock Data Center and Florent Gabriel of Blobb.

Former Economy Minister Antoine Armand notably denounced the risk of "lletting go of sovereign technological gems, born and developed in France ", warning against a form of strategic fire sale.

According to the National Bitcoin Institute (INBi), the French consortium FlexGroup has transmitted a counter-offer to EDF to maintain Exaion “100% French”. 

The challenge is clear: to offer an alternative that frees EDF from the non-competition clause and allows France to exploit its energy and digital potential without selling out.

Why this concerns investors and citizens

This issue is not just about energy. It affects the following areas:

• Bitcoin mining and more global mining: France may or may not have a role in this market.
• Sovereign cloud and strategic data: who controls the servers? Who operates the algorithms?
• French nuclear energy: value creation, flexibility, surplus. The question of electricity value creation in general.
• Technological sovereignty: in a digitized world, remaining dependent is costly.

Conclusion

What is at stake with Exaion, MARA and EDF is a fundamental question: Will France be a spectator of its own energy and digital revolution, or an actor?

For mining companies in France, the acquisition of Mara represents more of a concern regarding France's digital and energy sovereignty.