New export controls on gallium and germanium, two metals used in high-end semiconductors, are due to take effect in August. The restrictions could reverberate across the global chip industry
, the Western power has been more aggressive of late. Last year President Joe Biden’s administration laid out harsh restrictions limiting Chinese artificial-intelligence firms’ access to American technology. America has also been coaxing allies to follow its lead.
China’s communist authorities had so far responded to this barrage of tats with a single, relatively meagre tit: in May it barred some Chinese companies from using memory chips made by Micron, a company from Idaho. But on July 3rd it brought out a bigger gun, saying that it would impose export controls on gallium and germanium, two metals used in high-end semiconductors.
The new export controls will come into effect on August 1st. Unlike the Micron ban, which has little impact beyond one American chipmaker’s top line, restrictions on the sale of chip metals could reverberate across the global chip industry. China supplies about 80% of the world’s gallium and germanium. America may source as much as 50% of its germanium supply from China, according to Jefferies, an investment bank.
An all-out ban could disrupt the production of a wide range of existing products, including chips, screens, fibre-optic gear and solar panels. It may also stymie the development of next-generation technologies. Chipmakers hope gradually to replace the silicon used in most processors with gallium nitride or silicon carbide, both of which can handle higher voltages. Gallium and germanium may also be useful in electric vehicles, nuclear energy and other devices, including weapons..
China hawks in Washington may argue that China’s bite is weaker than its bark. Like some of the American restrictions, China’s new rules would require exporters to seek government approval and export licences and the Chinese government may well grant these quite freely: after all, a total ban would hurt Chinese exporters, who sell a lot of germanium and gallium to American customers. But Mr Biden should make no mistake. China is showing that it will not roll over—and that it can strike back.
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