The South Korean artificial sun, which goes by the name KSTAR (Korea Superconducting Tokamak Advanced Research), has made an important scientific discovery concerning nuclear fusion by being able to sustain plasma in high-confinement mode for a period of 102 seconds while simultaneously managing to keep plasma temperature at 100 million degrees centigrade for 48 seconds. This development by the Korea Institute of Fusion Energy (KFE) is another move towards achieving clean fusion energy, whose ability to generate unlimited amounts of electricity with little to no carbon emission is promising.
If they spent real money (not paper passing around deals between companies) over a decade and had tens of thousands of scientists and engineers and institutional knowledge and partnerships with academia in order to do it properly, yes they could.
But we both know they don’t have any of those things, so no practically they couldn’t.