China bans export of minerals critical for weapons, military applications to US amid rising tension

China has banned exports to the United States of items related to the minerals gallium, germanium and antimony that have potential military applications, it said on Tuesday, a day after Washington’s latest crackdown on China’s chip sector.

A commerce ministry directive on dual-use items with both military and civilian applications cited national security concerns. The order, which takes immediate effect, also requires stricter review of end-usage for graphite items shipped to the US.

“In principle, the export of gallium, germanium, antimony, and superhard materials to the United States shall not be permitted,” the commerce ministry said.

The curbs strengthen enforcement of existing limits on exports of the critical minerals that Beijing began rolling out last year, but apply only to the US market, in the latest escalation of trade tensions between the world’s two largest economies ahead of President-elect Donald Trump taking office.

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Chinese customs data show there have been no shipments of wrought and unwrought germanium or gallium to the US this year through October, although it was the fourth and fifth-largest market for the minerals, respectively, a year earlier.

Gallium and germanium are used in semiconductors, while germanium is also used in infrared technology, fibre optic cables and solar cells.

Similarly, China’s overall October shipments of antimony products plunged by 97 per cent from September after Beijing’s move to limit its exports took effect.

China accounted last year for 48 per cent of globally mined antimony, which is used in ammunition, infrared missiles, nuclear weapons and night-vision goggles, as well as in batteries and photovoltaic equipment.

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This year, China has accounted for 59.2 per cnet of refined germanium output and 98.8% of refined gallium production, according to consultancy Project Blue.

“The move is a considerable escalation of tensions in supply chains where access to raw material units is already tight in the West,” said Project Blue co-founder Jack Bedder.

Prices of antimony trioxide in Rotterdam had soared by 228 per cent since the beginning of the year to $39,000 a metric ton on Nov. 28, data from information provider Argus showed.

“Everyone will dig in their backyard to find antimony. Many countries will try to find antimony deposits,” said a minor metals trader in Europe, declining to be named.

China’s announcement comes after Washington launched its third crackdown in three years on China’s semiconductor industry on Monday, curbing exports to 140 companies, including chip equipment maker Naura Technology Group.

Trump, whose first White House term was marked by a bitter trade war with China, has said he will implement 10 per cent tariffs on Chinese goods and threatened 60 per cent tariffs on Chinese imports during his presidential campaign.

“It comes as no surprise that China has responded to the increasing restrictions by American authorities, current and imminent, with its own restrictions on the supply of these strategic minerals,” said Peter Arkell, chairman of the Global Mining Association of China.

“It’s a trade war that has no winners,” he said.

Separately, several Chinese industry groups called on Tuesday for their members to buy domestically made semiconductors, with one saying US chips were no longer safe and reliable.