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What are the five critical metals that China has restricted?

What are the five critical metals that China has restricted?

China announced on Tuesday sweeping restrictions on exports of five metals that are used in defence, clean energy, and other industries. This comes just minutes after the additional 10% tariff imposed by U.S. president Donald Trump on Chinese products went into effect.

What you should know about these metals

TUNGSTEN

Tungsten, an ultra-hard material - only diamonds are harder - is used to produce artillery shells and armour plating as well as cutting tools.

About 60% of the U.S. production is used to make tungsten carbide. This highly durable material is widely used in construction, metalworking and oil and gas drilling.

China is the world's largest producer and exporter of tungsten, and it produced just under 80% of the global supply by 2023.

According to Project Blue, a UK-based consultancy, China provides 30% of the ex China market, mainly in the form powders used for tooling.

Vietnam, Russia and South Korea are also producers.

According to the U.S. Geological Survey, tungsten hasn't been commercially mined in the United States for at least five years.

INDIUM

Indium, via an indium tin dioxide refined product, is used to make phone screens and television displays. In addition, a separate indium-based product is used in the fibre-optics technology.

Indium demand has increased due to the expansion of 5G cellular networks.

According to the USGS, China, like tungsten is the world's largest producer. It accounts for 70% of global production. In September 2024, about a quarter (25%) of U.S. imports of indium came from China.

Project Blue reports that Japan and South Korea are also major Chinese buyers.

BISMUTH

Bismuth can be found in alloys, medicines, metalurgical additives and atomic research.

USGS reports that the U.S. stopped producing primary refined bismuth back in 1997, and it is now heavily dependent on imports.

USGS data also revealed that China produced more than 80% of the 13,000 tons bismuth consumed worldwide last year.

South Korea and Laos also produce a lot of tehse products.

TELLURIUM

Tellurium is a common by-product of copper refinement and used in metallurgy. It's also found in solar panels, memory chip, and other products.

According to USGS, China will produce about three-quarters of the refined tellurium produced in the world by 2024.

According to the USGS, the copper telluride is produced in two refineries within the United States, but it is shipped abroad for further processing. Tellurium is imported for most products that use it.

MOLYBDENUM

Molybdenum is used primarily to harden and strengthen steel alloys to make them more resistant against heat and corrosion. Molybdenum is also used as a catalyst, in petroleum, in lubricants and in pigments.

According to USGS, China will account for 40% of the global production in 2024 compared with 12% for America.

(source: Reuters)