Japan’s $616M Ship Repair Push to Slash 93% Reliance on China

For supply chain and logistics professionals, Japan's 370 trillion yen industrial plan is not just a national defense move—it is a stark reminder that maritime repair capacity is a critical logistics vulnerability. With 93% of Japanese ship repairs currently done in China, a single geopolitical shock could freeze a fleet that carries the country's entire import of food, energy, and raw materials. The proposed investment of 100 billion yen ($616 million) through 2040 is a direct effort to de-risk that chokepoint and rebuild a domestic repair ecosystem.

Japan has unveiled an ambitious 370 trillion yen (approximately US$2.28 trillion) industrial upgrade plan that aims to revitalize 17 strategic sectors, prominently including ship repair for large ocean-going vessels. The move is a direct response to the country's deepening dependence on China, which now handles 60% of the global ship repair market and reportedly performs roughly 93% of the work on Japanese vessels. Only about 7% of Japanese ship repairs are currently done domestically, a vulnerability that has become increasingly alarming for Tokyo as geopolitical frictions with Beijing escalate. Prime Minister Sanae Takaichi, who has adopted a hawkish stance on China and even floated the possibility of deploying military forces in the event of a Taiwan Strait conflict, is driving the initiative to bolster economic and national security. A Chinese business-to-business portal, eWorldship, calculated via a WeChat post that approximately 100 billion yen (US$616 million) of the total plan will be allocated specifically to ship repair capacity. The Japanese government has indicated that financing will come from a blend of public and private investments and be implemented through 2040.

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The move is a direct response to the country's deepening dependence on China, which now handles 60% of the global ship repair market and reportedly performs roughly 93% of the work on Japanese vessels.

The ship repair market is strategically critical because it underpins the viability of global shipping fleets. Vessels require periodic maintenance, emergency repairs, and retrofitting to meet environmental and safety regulations. For Japan, an island nation that relies on maritime transport for nearly all of its foreign trade—including energy, food, and raw materials—any disruption to repair services could cascade through the economy, delaying essential imports and undermining export competitiveness. Dependence on Chinese shipyards creates a single point of failure, particularly given the strained bilateral ties. Territorial disputes in the East China Sea, historical animosities, and Takaichi's recent statements about Taiwan have amplified tensions, making it politically untenable to rely on a potential adversary for such a vital service. Katsuya Yamamoto, director of the Sasakawa Peace Foundation's Strategy and Deterrence Programme, underscored that any disruption to shipping would severely impact both the economy and daily life, highlighting the urgency of diversifying repair sources.