China could weaponise rare earths in US tech war

The US has hit China where it hurts by going after its telecom champion Huawei, but Beijing’s control of the global supply of rare earths used in smartphones and electric cars gives it a powerful weapon in their escalating tech war.

A seemingly routine visit by President Xi Jinping to a Chinese rare earths company this week is being widely read as an obvious threat that Beijing is standing ready for action.

However, analysts say China appears apprehensive to take such a route just yet, possibly fearful of shooting itself in the foot by hastening a global search for alternative supplies of the commodities.

While Chinese official sources released no comments by Xi during his inspection, his public appearances are usually larded with political meaning, and this week’s stop is viewed as no exception.

“This is no accident, this didn’t happen by chance,” said Li Mingjiang, China programme coordinator at the Rajaratnam School of International Studies (RSIS) in Singapore.

“At this moment, clearly the policy circles in China are considering the possibility of using a rare earth exports ban as a policy weapon against the US.”

The United States last week threatened to cut supplies of US technology needed by Chinese telecom champion Huawei, which Washington suspects is in bed with China’s military.

The US move has fanned speculation that Xi could impose retaliatory measures and in an indication of the importance of rare earths to the US, Washington did not include them in a tariffs increase on Chinese goods this month.

China has leverage

China occupies a commanding position, producing more than 95 percent of the world’s rare earths, and the United States relies on China for upwards of 80 percent of its imports.

Rare earths are 17 elements critical to manufacturing everything from smartphones and televisions to cameras and lightbulbs.

That gives Beijing tremendous leverage in what is shaping up largely as a battle between the US and China over who will own the future of high-tech.

“China could shut down nearly every automobile, computer, smartphone and aircraft assembly line outside of China if they chose to embargo these materials,” James Kennedy, president of ThREE Consulting, wrote Tuesday in National Defense, a US industry publication.

China has been accused of using its rare earth leverage for political reasons before.

Japanese industry sources said it temporarily cut off exports in 2010 as a territorial row flared between the Asian rivals, charges that Beijing denied.

In 2014, the World Trade Organization ruled the country had violated global trade rules by restricting exports of the minerals.

The case was brought by the United States, European Union and Japan, which accused China of curbing exports to give its tech companies an edge over foreign rivals. China has cited environmental damage from mining and the need to conserve supplies as the reason for any past limits on output.

While disruptive, any leverage gained from a supply block may be short-lived, experts said.

“This would accelerate moves to find alternative supply sources,” said Kokichiro Mio, who studies China’s economy at NLI Research Institute.