China Expands Dual-Use Export Ban on Japan Over Rearmament

China has escalated its economic pressure on Japan by adding 20 Japanese entities to an export control blacklist and 20 others to a watchlist, citing concerns over Tokyo’s “new militarism” and military buildup. The Chinese Foreign Ministry and Ministry of Commerce announced the expanded restrictions on June 29, bringing the total number of sanctioned Japanese entities to 80 since February 2026.

According to Xinhua News, Foreign Ministry Spokesperson Guo Jiakun defended the measures as “completely justified, reasonable, and lawful,” stating they are aimed at “resolutely curbing Japan’s ‘new militarism’ recklessness.”

Scope of the Restrictions

The latest wave of sanctions targets 20 Japanese entities with a blanket ban on all dual-use item exports, while 20 additional entities have been placed on a watchlist requiring enhanced licensing scrutiny and risk assessments. Key organizations blacklisted include the National Institute for Defense Studies, Naval Systems Research Center, Ground Systems Research Center, and several Mitsubishi-affiliated defense contractors such as Mitsubishi Precision and MHI Logitech.

Entities placed on the watchlist include Mitsui E&S Co, Terra Drone, and Hitachi Advanced Systems. The restricted materials cover dual-use items including gallium, germanium, and antimony — critical minerals essential for semiconductor manufacturing and military equipment production.

A Caixin report noted that the Ministry of Commerce justified the expanded controls as necessary to safeguard national security and fulfill nonproliferation obligations, barring domestic exporters and overseas organizations from transferring Chinese-origin dual-use goods to the sanctioned entities.

Background: A Rapidly Deteriorating Relationship

The expanded sanctions represent the latest chapter in a sharp deterioration of China-Japan relations that began in late 2025. The flashpoint came on November 7, when Japanese Prime Minister Sanae Takaichi suggested during a Diet Budget Committee session that Japan could exercise collective self-defense and militarily intervene if China attempted to take control of Taiwan.

China, which views Taiwan as a core national interest and any foreign intervention as a red line, reacted angrily. By January 6, 2026, Beijing had banned all dual-use exports to Japanese military users. The first wave of entity-specific sanctions followed on February 24, when 20 Japanese entities — including Mitsubishi Shipbuilding — were added to the blacklist and 20 others — including Subaru Corp — to the watchlist.

Since taking office in October 2025, Prime Minister Takaichi has made national defense a top priority, raising military spending to 2% of GDP, pushing to amend Article 9 of Japan’s pacifist constitution, and accelerating the acquisition of offensive weapons capabilities. On June 29, NHK reported that Japan had deployed surface-to-ship missile launchers on Minamitorishima.

Japan’s Response

Japan’s government formally protested the measures on the same day. Chief Cabinet Secretary Minoru Kihara called the sanctions “absolutely unacceptable” and “extremely regrettable,” noting that measures targeting only Japan “are vastly different from international practices.” An anonymous Japanese Foreign Ministry official suggested the move may signal that countermeasures will be taken against companies related to strengthening defense capabilities.

Economic Implications

The economic stakes are significant. Takahide Kiuchi, Executive Economist at Nomura Research Institute, estimated that a three-month restriction on Chinese rare-earth exports to Japan could cause economic losses of approximately ¥660 billion ($4.1 billion), with losses rising to ¥2.6 trillion over a full year — potentially reducing Japan’s annual GDP by 0.1%.

Japan has been working to reduce its dependence on Chinese rare earths, cutting reliance from 90% to 58% through diversification efforts and investments in projects in Australia and Malaysia. However, the expanded controls threaten to disrupt supply chains for Japanese defense contractors and technology firms that rely on Chinese-origin critical minerals.

Expert Analysis

Cui Fan, a professor at the University of International Business and Economics in Beijing, told state media that by tightening controls, China aims to weaken Japan’s military capabilities and create a deterrent. “More important, it sends a clear warning to Japan that any action that damages China’s core interests will come at a corresponding price,” he said.

Naoise McDonagh, a lecturer at Edith Cowan University in Australia, noted that the significant level of economic coercion signals the degree of sensitivity of the Taiwan issue. Beijing hopes to influence the wider strategic environment by leveraging its control over key technology and related supply chains.

What to Watch For

The escalation raises several critical questions. Japan may impose retaliatory measures, potentially targeting Chinese technology imports or financial flows. The detention of two Japanese nationals in China in late June — reportedly related to rare earth export controls — adds a further layer of diplomatic tension.

Other regional powers, including South Korea, Australia, and ASEAN nations, will be watching closely as China demonstrates its willingness to use economic coercion over the Taiwan issue. The measures could accelerate technology decoupling between the two economic giants and reshape global trade governance as China establishes itself as a major user of export controls.

Paradoxically, China’s pressure may strengthen Japan’s resolve to remilitarize, creating a self-reinforcing cycle that further destabilizes the region. As both nations dig in, the path forward appears fraught with diplomatic and economic peril.