Fusion News & Milestones

M&A · Lede

General Fusion completes $1B SPAC transaction, lists on NASDAQ

Canadian magnetized target fusion developer becomes second pure-play fusion company on a U.S. exchange.

VANCOUVER, BC — June 3, 2026 · By Fusion Energy News Desk

Milestone

Commonwealth Fusion Systems begins SPARC magnet assembly in Devens

Toroidal-field coil stacking under way at MIT spinout's Massachusetts campus, on track for late-2027 first plasma.

DEVENS, MA — June 3, 2026

Science

Helion reports plasma compression milestones en route to net electricity

Polaris reactor reaches 95% of design field strength; tritium-management questions persist.

EVERETT, WA — June 3, 2026

World

China

EAST achieves 1,200-second high-confinement plasma at ASIPP Hefei

Chinese Academy of Sciences tokamak extends H-mode pulse duration by 40%, closing the steady-state gap with ITER baseline targets.

HEFEI, ANHUI — June 3, 2026

China

BEST tokamak begins component installation at Hefei BEST campus

ENN-backed Burning Plasma Experimental Superconducting Tokamak targets 2027 first plasma; positions China for a parallel commercial track.

HEFEI, ANHUI — June 2, 2026

Japan

JT-60SA produces first deuterium plasma at Naka Fusion Institute

QST and EUROfusion joint device begins integrated D-phase operations after three-year commissioning campaign.

NAKA, IBARAKI — June 2, 2026

Capital

M&A

Type One Energy acquires stellarator IP portfolio from defunct German startup

Wisconsin stellarator developer absorbs filings from a wound-down Greifswald-area competitor.

MADISON, WI — June 1, 2026

Capital

Pacific Fusion raises $900M Series A on pulsed magnetic confinement bet

Stealth-mode startup unveils itself with one of the largest Series A rounds in fusion history.

FREMONT, CA — May 31, 2026

Capital

Xcimer Energy raises $100M Series A for KrF laser ICF approach

Denver-area startup commits to krypton-fluoride laser drivers as alternative to NIF-class glass lasers.

DENVER, CO — May 29, 2026

Science & Engineering

Milestone

ITER first plasma timeline officially shifted to 2034 in IO board update

International Organization confirms long-anticipated slip in baseline schedule; cost estimate revised.

CADARACHE, FR — May 31, 2026

Hardware

Marvel Fusion breaks ground on €150M laser facility in Bavaria

Munich-based inertial confinement startup begins construction of high-repetition-rate laser test platform.

MUNICH, DE — May 30, 2026

Milestone

NIF achieves 5.2 MJ yield — 2.5× breakeven on N240204 shot

Livermore facility extends ignition record; team credits hohlraum geometry refinements.

LIVERMORE, CA — May 29, 2026

Policy

NRC publishes final rule decoupling fusion from fission regulatory framework

U.S. nuclear regulator finalizes Part 53 amendments that treat fusion under a byproduct-materials regime.

ROCKVILLE, MD — May 30, 2026

Policy

EU INFUSE programme opens €120M for public-private fusion partnerships

Horizon Europe instrument explicitly modeled on U.S. DOE INFUSE; first call closes September.

BRUSSELS — May 27, 2026

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Citations & Sources

Academic & financial rigor

[01]
Fusion Industry Association — Annual Report
FIA · 2025
[02]
DOE Milestone-Based Fusion Development Program
U.S. Department of Energy