In a first, a Chinese company has achieved high-parameter hydrogen-boron plasma control, marking a “significant and valuable” advance in research into neutron-free magnetic confinement fusion. ENN Group, based in Langfang, Hebei province, announced on Monday that its EXL-50U spherical device – a compact tokamak that uses a magnetic field to confine charged gas, or plasma, for nuclear fusion research – had successfully achieved hydrogen-boron fusion reactions.