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Dubbed the "artificial sun," the Burning Plasma Experimental Superconducting Tokamak (BEST) is under construction in Hefei, east China's Anhui Province. The BEST facility represents one of China's major ventures into controlled nuclear fusion and is poised to attempt the world's first fusion energy power generation demonstration.
bonus article: https://english.cas.cn/newsroom/cas-in-media/202604/t20260417_1157472.shtml (Burning Plasma Experimental Superconducting Tokamak under Construction in Hefei, China's Anhui)
They aren't in competition. Quite the opposite, both programs exchange information with each other. For example 15 years ago, China was pushing the Tokamak technology forward, Europe worked on a alternative reactor without the tokamak designsa limitations: Back then it needed constantly increasing input to keep running, obviously limiting the maximal fusion runtime and preventing surplus energy production.
Back then they sometimes even exchanged personel, there are only a handful of welders qualified to work on fusion reactors.