In 2024, China achieved a series of breakthroughs in helium purification, completely breaking the century-old technological monopoly of USA.

The vacuum helium extraction cold box independently developed by a company in Zhuhai can extract 65 m3 of ultra-pure helium gas with a purity of 99.9998% per hour from liquefied natural gas tail gas with a helium content of only 0.03%. The extraction efficiency is 1.5 times higher than the international average level.


A company in Shanxi has achieved mass production of 6N grade (99.9999%) ultra-high-purity helium gas, and its "membrane separation +PSA+ alloy dehydrogenation" process has been successfully developed.