China’s LineShine supercomputer debuted at No. 1 on the June 2026 TOP500 list, announced at the ISC 2026 conference in Hamburg, becoming the first system to sustain more than two exaflops on the standard HPL benchmark using CPUs only. The result marks the first time since 2017 that a China-based system has led the TOP500 ranking, and reflects Beijing’s effort to present a frontier computing system built around domestic processors, interconnects, and software.