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Next China InnoLab: Shanghai's "artificial sun" achieves landmark milestone

Updated: May 8, 2026 Source: China Economic Information Service Shanghai Headquarters
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Shanghai-based fusion startup Energy Singularity has achieved a landmark milestone, setting a world record for a commercially constructed nuclear fusion device with its Honghuang 70 (HH70) high-temperature superconducting (HTS) tokamak. Often referred to as an "artificial sun," the device has conducted 5,755 experiments and demonstrated its capability to sustain a plasma current for an impressive 1,337 seconds. This achievement underscores Shanghai's emergence as a global innovation hub for fusion energy, where a diverse range of technological pathways, including HTS tokamaks and laser fusion, are being actively pursued.

Produced by China Economic Information Service Shanghai Headquarters

Editor: Yang Linlin