China has added 20 Japanese entities to its export control blacklist, barring Chinese companies from supplying them with dual-use items without government approval. The list includes Japan’s National Institute for Defence Studies and subsidiaries of Mitsubishi, Komatsu, and Fujitsu. Beijing’s commerce ministry said the measures target what it called Japan’s “neo-militarism and remilitarisation.”
The move is the latest escalation in a deterioration of China-Japan relations that has been building for months. In February, China placed 40 Japanese entities on a similar watchlist. In March, it tightened export controls on dual-use items bound for Japan. Each round is framed as a defensive measure against Tokyo’s shift away from its post-war pacifist constitution.
There is some truth to that framing. Japan has spent the last two years expanding its military capabilities at a pace unseen since 1945. The government has abolished the long-standing “five categories” that restricted arms exports, making it possible in principle to transfer lethal weapons to other countries. It has signed defense equipment transfer agreements with 17 nations. It has deployed offensive missiles and increased defense spending to levels that would have been politically unthinkable a decade ago.
China’s commerce ministry spokesperson said the measures are “completely justified, reasonable and lawful,” aimed at “resolutely curbing Japan’s reckless moves toward neo-militarism.” The ministry stated that normal trade between the two countries would not be affected, and that the controls target only the listed entities and apply solely to dual-use items.
The distinction matters less than it sounds. Dual-use items are where the real economic friction lives. They cover advanced materials, electronics, sensors, and manufacturing equipment that have both civilian and military applications. By restricting these, China can damage Japan’s defense-industrial base without declaring a trade war. A subsidiary of Mitsubishi on a blacklist cannot buy Chinese rare earth elements for a commercial sensor if those sensors could also go into a military drone. The burden of proof shifts to the buyer.
The timing is significant. China’s move comes the same day that the US and Iran agreed to stand down after a weekend of strikes, and as the broader US-China technology competition continues to intensify. For Tokyo, the export controls add another friction point to a security environment already under strain from the Iran conflict’s effects on global trade and the US-China technology decoupling.
The immediate market reaction was contained. China’s commerce ministry explicitly said normal bilateral trade was unaffected, which limited the near-term spillover. But the pattern is clear. Beijing now has a template for placing Japanese industrial conglomerates on dual-use blacklists. If a Mitsubishi subsidiary can be designated today, other subsidiaries can be designated tomorrow. The perimeter of the list can expand.
Japan’s response will be closely watched. Tokyo has been working to develop alternative supply chains for rare earths and critical minerals, including agreements with African nations to reduce reliance on Chinese sources. But those efforts take years. In the short term, Japanese manufacturers that depend on Chinese inputs for dual-use components face disruptions they cannot easily replace.
The China-Japan economic relationship is one of the world’s most consequential bilateral trade ties. It is also one of the most politically fraught, given the historical legacy of Japan’s wartime occupation of China and the unresolved territorial disputes in the East China Sea. The export control escalation does not mean a trade war is imminent. But it does mean that the default assumption of frictionless commerce between the two countries is no longer sustainable. Each side now has the legal machinery in place to disrupt the other’s supply chains. The question is how far either is willing to go.