The milestone meant China's Experimental Advanced Superconducting Tokamak (EAST), dubbed "artificial sun," becoming the world's first tokamak device to achieve the 100-second level, Hefei Institute of Physical Science under the Chinese Academy of Sciences said Wednesday.

Last year, the EAST team in Hefei, capital of Anhui Province, created a record by achieving over 60 seconds of steady-state long-pulse H-mode discharge of the device.

EAST's steady-state H-mode operation has provided important experimental support for the operation of International Thermonuclear Experimental Reactor (ITER), a large international scientific project project.