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Mitsubishi Heavy Industries and Japan's National Institutes for Quantum Science and Technology (QST) have completed the manufacturing of the first outer vertical target of the ITER divertor. Three types of plasma-facing targets (outer vertical target, inner vertical target and dome) mounted on divertor cassette bodies form the "cassette assemblies" that will be installed in a ring at the bottom of the ITER plasma chamber. In a tokamak, the divertor plays an important role in the removal and expelling of unburned fuel and impurities in the core plasma to sustain the fusion reaction in a stable manner.

Mitsubishi Heavy Industries is responsible for the manufacturing of 38 outer vertical target units. Series production is now underway.

Read the full press release in English or Japanese.

From 4 to 6 November, Paris will host the World Nuclear Exhibition (WNE)—the world's largest civil nuclear exhibition, expected to welcome more than 25,000 participants.

The ITER Organization will be present at WNE 2025. Here’s how you can meet and engage with us during the event:

• Stand L123: for the duration of the conference
• Tuesday 4 November, 17:00-17:50, Workshop Room 3: "ITER procurement procedures and opportunities" with ITER Procurement Section Leader Takakazu Kimura and Fusion for Energy Market Analyst Benjamin Perier.
• Wednesday 5 November, 11:15-12:30, Main Stage: "From Breakthroughs to Industry: Delivering Fusion Energy at Global Scale," a panel discussion with ITER Director-General Pietro Barabaschi and representatives from RWE Nuclear GmbH, Ansaldo Nucleare, Westinghouse Electric Company, the International Atomic Energy Agency (IAEA), and the European Commission Directorate-General for Energy.

See you there!

If you are a European company or organization with fusion technology or fusion know-how that is used or planned for use in a non-fusion application, you can apply by 5 December 2025 for Fusion for Energy's 2025 Fusion Technology Transfer Award.

Europe’s contribution to ITER and other fusion projects such as JT-60SA, IFMIF/EVEDA, IFERC, IFMIF-DONES, and DEMO is pushing suppliers to develop cutting-edge technologies. These range from robotic tools to engineering software, superconductors or novel metal joining techniques. Besides their value in a fusion environment, these solutions can find their place in other high-tech sectors. Fusion for Energy’s Technology Transfer Programme helps companies and researchers think broader and tap into the commercial potential of fusion breakthroughs; discover some of the success stories here.

The prize (EUR 10,000) will be awarded during the first quarter of 2026. 

See all information on the 2025 Fusion Technology Transfer Award website.

The journal Nuclear Fusion has published a collection of papers prepared by the Topical Physics Groups of the International Tokamak Physics Activity (ITPA) reviewing progress in the development of the physics basis for burning plasma operation.

The special issue describes the extensive physics R&D activities for ITER and fusion energy development carried out under the ITPA between 2007 and 2025. It covers a wide range of physics issues—from plasma confinement and fast particles, to plasma control (including power fluxes on plasma-facing components and the mitigation of power transients) and diagnostics.

The 2025 special issue includes topics of relevance to ITER, as well as to tokamak burning plasmas more generally.

Click to access “On the Path to Tokamak Burning Plasma Operation.”