China detentions widen Japan rare earth supply risks
· UPIJune 24 (Asia Today) -- China's detention of two Japanese nationals in a case reportedly involving rare earth-related exports has heightened concern that Beijing's mineral controls are creating legal and personnel risks for foreign companies in addition to disrupting supply chains.
Japan's government said Wednesday that Chinese authorities detained one Japanese national in the northeastern port city of Dalian on May 18 and another on May 25.
Both were suspected of violating Chinese laws against smuggling goods prohibited from import or export, according to Japanese Chief Cabinet Secretary Minoru Kihara.
China's Foreign Ministry confirmed that two Japanese citizens had been detained for alleged violations of Chinese law but did not provide details of the case.
Japanese media, including the Asahi Shimbun, reported that at least one of the detained people was an employee of a major Japanese electrical machinery manufacturer.
The employees were reportedly suspected of attempting to export processed products containing rare earth elements from China. The companies involved, the products and their intended destinations have not been officially disclosed.
The case suggests that China's rare earth export controls are expanding beyond customs delays and material shortages to create compliance and personnel risks for foreign companies operating in the country.
Rare earths are essential materials used in electric-vehicle motors, semiconductor manufacturing equipment, wind turbines and defense systems.
Heavy rare earth elements such as dysprosium and terbium are particularly important for producing high-performance permanent magnets. Japanese manufacturers remain heavily dependent on China for supplies of those materials.
China tightened export controls on seven categories of medium and heavy rare earth-related items in April 2025 as trade tensions with the United States intensified.
The controlled items include products related to samarium, gadolinium, terbium, dysprosium, lutetium, scandium and yttrium.
Exporters must obtain authorization from China's Ministry of Commerce before shipping controlled items overseas and must identify them during customs procedures.
Beijing has said the controls are intended to protect national security and fulfill international obligations related to nuclear and missile nonproliferation.
The measures later became part of a broader diplomatic dispute between China and Japan.
Relations deteriorated after Japanese Prime Minister Sanae Takaichi made parliamentary remarks in November about how Japan might respond to a military conflict involving Taiwan.
China announced additional controls in January on exports of dual-use items to Japanese military users, for military purposes or for other uses that could enhance Japan's military capabilities.
The rules did not provide a detailed public list of all affected products, increasing concern among Japanese companies about customs delays, licensing decisions and the possible suspension of transactions.
China imposed further restrictions in February on selected Japanese companies, including manufacturers in the aerospace, automotive and heavy industrial sectors.
Export controls reach corporate operations
Japanese manufacturers say the supply chain effects are already becoming visible.
Chinese customs data showed that exports to Japan of several rare earth materials used in high-performance magnets remained negligible in May.
Japan's electrical, electronics, automobile and industrial machinery sectors use rare earth magnets and related components across a wide range of products.
The detention case could prompt Japanese companies to review their logistics operations, export compliance procedures and employee training in China.
It may also make companies more cautious about transporting products that contain controlled minerals, even when the rare earth materials account for only part of the finished product.
The case comes as Japan and other Group of Seven countries seek closer cooperation on critical mineral supplies.
At last week's G7 summit in Évian, France, leaders agreed to coordinate critical mineral stockpiling and establish a new supply monitoring platform with an expanded role for the International Energy Agency.
The G7 set a goal of reducing dependence on any single supplier outside the group and its partner countries for rare earths and permanent magnets to less than 60% by 2030.
The countries said they would seek to lower that share to about 50% as soon as possible.
Japan has also called for greater investment in alternative suppliers, mineral-producing countries, recycling technology and substitute materials.
South Korea faces similar risks
The case has direct implications for South Korea, whose electric-vehicle, battery, semiconductor, defense and renewable energy industries also depend on stable supplies of rare earths and other critical minerals.
China's ability to tighten export controls during diplomatic disputes means South Korean companies could face similar risks involving licensing delays, customs inspections and uncertainty over whether particular products are covered by the rules.
The detention of foreign employees introduces an additional concern because compliance disputes could affect not only corporate shipments but also the safety and freedom of personnel working in China.
The developments are likely to increase pressure on South Korea to expand its critical mineral reserves, strengthen recycling technology and develop substitute materials.
They could also accelerate efforts to establish joint procurement arrangements with the United States, Japan and other partner countries.
The rare earth dispute is no longer simply a question of obtaining raw materials. It has become a broader economic security issue involving diplomacy, national security, regulatory compliance and the protection of overseas employees.
-- Reported by Asia Today; translated by UPI
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Original Korean report: https://www.asiatoday.co.kr/kn/view.php?key=20260624010008399