China's Ministry of Commerce announced on Tuesday export controls prohibiting dual-use items to 20 Japanese entities accused of bolstering Tokyo's military capabilities. The measures also place another 20 firms on a watchlist subject to heightened scrutiny and licensing requirements.

Dual-use goods include critical minerals like rare earths such as dysprosium, yttrium and samarium, essential for defense, automotive and electronics manufacturing. Entities on the control list face an immediate halt to such shipments from China, with foreign re-exports of Chinese-origin items also banned. Affected parties include subsidiaries of Mitsubishi Heavy Industries focused on shipbuilding, aero engines and maritime systems; Kawasaki Heavy Industries' aerospace division; IHI subsidiaries; Fujitsu units; and the National Defense Academy of Japan.

The watchlist features companies like Subaru Corp, whose aerospace arm supports defense production; Mitsubishi Materials Corp; Itochu Aviation; ENEOS Corp; TDK; affiliates of Itochu, Sumitomo and Mitsui; Institute of Science Tokyo; Yashima Denki Co.; and NOF Corp. Exporters to these firms must now submit risk assessments and commitments ensuring no military enhancement.

Beijing framed the restrictions as necessary to "safeguard national security and interests" and curb Japan's "remilitarization" and alleged nuclear ambitions, insisting they target only dual-use items without disrupting normal trade. The move escalates a diplomatic crisis sparked in November 2025 by Prime Minister Sanae Takaichi's parliamentary remarks portraying a Chinese attack on Taiwan as a potential "existential crisis" for Japan, possibly justifying military intervention.

Takaichi's comments, made amid her conservative push to double defense spending to 2% of GDP by 2027 and ease arms export rules, prompted prior Chinese actions including seafood import suspensions, rare earth delays, tourism advisories and cultural event cancellations. Chinese tourist arrivals to Japan plunged over 45% in December 2025 and remained sharply down into 2026.

Japan swiftly condemned the curbs as "completely unacceptable" and "deeply regrettable," lodging a formal protest and demanding their withdrawal. Deputy Chief Cabinet Secretary Kei Sato said Tokyo would scrutinize details, including rare earth inclusions, and respond accordingly. Some affected firms, like Yashima Denki and NOF, downplayed impacts due to limited China trade, while markets showed volatility: Subaru shares dropped 3.5%, Mitsubishi Heavy fell 3.1%, but Mitsubishi Materials rose 3.8%.

Experts warn of supply chain strains for Japan's aerospace, auto and semiconductor sectors, though stockpiles may buffer short-term effects. Analysts see the controls as targeted pressure on Tokyo's defense buildup and U.S. alliance, amid Beijing's broader export regime expansions. Japan maintains openness to dialogue, but the rift shows no signs of easing.