2 Japanese Nationals Detained in China Amid Rising Sino-Japanese Tensions

Reports suggest the case may involve attempts to export products containing rare earth materials, which are subject to stringent Chinese export controls.
Published: 6/24/2026, 1:28:34 PM EDT
2 Japanese Nationals Detained in China Amid Rising Sino-Japanese Tensions
Japanese Prime Minister Sanae Takaichi delivers her first policy speech in the parliament, in Tokyo, Japan, on Oct. 24, 2025. (Kim Kyung-Hoon/Reuters)

China has detained two Japanese nationals on suspicion of smuggling goods prohibited from import or export, the Japanese government confirmed on Wednesday.

Chief Cabinet Secretary Minoru Kihara stated during a regular press briefing that Chinese authorities informed Tokyo of the first detention, which occurred on May 18 in the northeastern port city of Dalian. A second Japanese national was detained on May 25 on similar allegations.

“The Japanese government will continue to take appropriate measures to protect its citizens while maintaining contact with the detained individuals and relevant parties,” Kihara said.

He did not disclose further details due to privacy concerns.

According to Japan’s Kyodo News, citing sources familiar with the matter, one of the detainees is an employee of a major Japanese electronics or heavy machinery company operating in China.

Reports suggest the case may involve attempts to export products containing rare earth materials, which are subject to stringent Chinese export controls.

Japan’s Ministry of Foreign Affairs confirmed that both individuals were detained in connection with the same case.

Chinese Foreign Ministry spokesperson Guo Jiakun confirmed the detentions on June 24 but did not answer whether they were linked to rare earth exports. He emphasized that Japanese citizens and companies operating in China must “comply with Chinese laws and regulations.”
In a ruling last July, a Chinese court handed a three-and-a-half-year prison sentence to a Japanese executive from Astellas Pharma Inc. after finding him guilty of espionage.

The employee, who previously served as a senior official for the Japanese Chamber of Commerce and Industry in China, was originally detained in March 2023, right before his planned repatriation to Japan.

The incident comes amid strained relations between China and Japan, further intensifying existing tensions.

Bilateral relations deteriorated significantly following remarks made by Japanese Prime Minister Sanae Takaichi in November last year regarding Taiwan. She indicated that Japan could consider a military response in the event of a Chinese attack on the democratic island.

China, which claims Taiwan as part of its territory, responded with a series of political and economic countermeasures against Japan, including imposing restrictions on certain mineral exports such as rare earth materials.

According to reports by Nikkei, China’s rare earth exports to Japan declined by more than 80 percent year-on-year in March and April, prompting Japanese companies to seek alternative supply sources.

In addition, Beijing has restricted imports of Japanese seafood, discouraged Chinese tourism to Japan, and increased its maritime presence in waters surrounding Japan. China also has intensified coast guard patrols in areas between Japan and Taiwan.

On May 22, China’s Foreign Ministry also criticized Japan’s 2025 defense budget, which increased by 9.7 percent.

Guo Jiakun said that Japan’s military spending has risen for 14 consecutive years.

A few days later, during the Shangri-La Dialogue in Singapore, Japanese Defense Minister Shinjiro Koizumi rejected China’s accusations of “neo-militarism.” He instead highlighted concerns over China’s military expansion and lack of transparency.

“Think about it. There is a country that has a huge arsenal of nuclear weapons and strategic bombers. Japan has neither of such weapons. ” Koizumi said.

He added that China’s external posture and military activities are “matters of serious concern for Japan and the international community.”

According to the Stockholm International Peace Research Institute, China remains the world’s second-largest military spender, with defense expenditures rising by 7.4 percent last year to approximately $336 billion—marking the 31st consecutive annual increase.