China’s threat to curb exports of gallium and germanium from the start of August marks an escalation in the global competition for critical minerals and metals. Both are esoteric metals with multiple applications across a spectrum of cutting-edge technologies, particularly silicon chips for the semiconductor sector.
As such, China’s move seems a calibrated response to the US Chips Act and the increasing pressure on US allies to restrict sales of sensitive microchip technology to the country. The announcement a day before the US Independence Day holidays was a symbolically-charged reminder that the West is highly dependent on China for many raw material inputs to its high-tech industrial base.