Japan’s exports slowed from 19.3% yoy in August to 16.7% in September, missing market expectations of 20.1%, although shipments recorded their 13th consecutive month of growth. Imports also moderated from 28.0% to 18.9%, slightly below expectations of 19.6%. The trade deficit narrowed from ¥1.1 trillion to ¥536.6 billion, but remained substantially wider than the forecast ¥181 billion. Compared with a ¥277.7 billion deficit a year earlier, the shortfall nearly doubled, highlighting persistent pressure on Japan’s external trade balance despite strong export growth.
Semiconductor-related products remained the principal source of export strength, reflecting continued global investment in artificial intelligence infrastructure. Semiconductor exports surged 49.4% yoy by value, while shipments of semiconductor manufacturing equipment climbed 43.9%. Together, these categories contributed approximately 5.1 percentage points to overall export growth. Demand from Asian technology manufacturers was particularly robust, with exports to South Korea rising 35.5% and Taiwan 37.8%. Semiconductor manufacturing equipment shipments to South Korea alone jumped 82.4%, underscoring Japan’s important position in the regional AI supply chain.
Automotive exports provided additional support, although performance varied considerably across destinations. Motor vehicle export values rose 15.1% yoy despite a 0.5% decline in shipment volumes. Exports of motor vehicles to the US increased 31.0% by value, while those to the EU climbed 31.9%, contrasting sharply with a 59.8% contraction in shipments to China. Overall exports to the US rose 22.9%, compared with 8.6% growth to China. The divergence points to uneven overseas demand, with strong technology investment and selected automotive markets supporting exports despite broader signs of moderation.
Meanwhile, elevated energy import costs continued to weigh on Japan’s trade balance. Mineral fuel imports increased 39.4% yoy by value, with petroleum imports surging 51.1% despite volumes rising only 3.1%. LNG import values also climbed 39.2% even as volumes declined 7.3%. Middle East supply disruptions and shipping delays have further complicated Japan’s energy procurement, although slower import growth helped narrow the monthly deficit. The trade figures suggest external demand remains supportive, particularly through AI-related investment, but export momentum is increasingly exposed to potential shifts in technology spending and persistent energy pressures.
Data Summary
Japan Trade — September 2026
| Indicator | Previous | Forecast | Current |
|---|---|---|---|
| Exports Y/Y | +19.3% | +20.1% | +16.7% |
| Imports Y/Y | +28.0% | +19.6% | +18.9% |
| Trade Balance | -¥1.1T | -¥181.0B | -¥536.6B |
September 2025 trade balance: -¥277.7B.
Export Performance by Product
| Category | Y/Y Change |
|---|---|
| Semiconductors and related components | +49.4% |
| Semiconductor manufacturing equipment | +43.9% |
| Electrical machinery | +30.3% |
| General machinery | +18.4% |
| Motor vehicles (value) | +15.1% |
| Motor vehicles (volume) | -0.5% |
Exports by Destination
| Destination | Y/Y Change |
|---|---|
| Taiwan | +37.8% |
| South Korea | +35.5% |
| ASEAN | +25.3% |
| United States | +22.9% |
| European Union | +10.5% |
| China | +8.6% |
Energy Imports
| Category | Value Y/Y | Volume Y/Y |
|---|---|---|
| Mineral fuels | +39.4% | — |
| Petroleum | +51.1% | +3.1% |
| LNG | +39.2% | -7.3% |
Source: Japan Ministry of Finance, October 21, 2026.
Key Takeaways
- Export growth slows despite sustained expansion: Japan’s exports moderated from 19.3% to 16.7% yoy, below expectations of 20.1%, marking a second consecutive monthly slowdown in the annual growth rate. Nevertheless, exports extended their expansion to a 13th straight month, indicating that overseas demand remains supportive despite weaker momentum.
- AI-related demand remains the principal growth engine: Semiconductor exports surged 49.4% yoy by value, while semiconductor manufacturing equipment shipments increased 43.9%. Together, the two categories contributed approximately 5.1 percentage points to overall export growth. Continued investment in AI infrastructure and chip manufacturing remains a major source of support for Japanese exporters.
- Asian semiconductor investment provides particularly strong demand: Exports to South Korea rose 35.5%, while shipments to Taiwan increased 37.8%. Semiconductor manufacturing equipment exports to South Korea jumped 82.4%, underscoring the importance of regional chipmaking investment. However, this also leaves part of Japan’s export momentum exposed to potential changes in global AI spending.
- Automotive exports reveal sharp regional divergence: Motor vehicle export values increased 15.1% despite a 0.5% decline in volumes. Shipments by value to the US and EU increased 31.0% and 31.9% respectively, contrasting with a 59.8% decline to China. The differences highlight uneven overseas demand beneath the positive aggregate export figures.
- Trade deficit remains much larger than expected: Slower import growth helped narrow the monthly deficit from ¥1.1 trillion to ¥536.6 billion. However, the shortfall was nearly three times the forecast ¥181 billion and substantially wider than the ¥277.7 billion deficit recorded a year earlier. The monthly improvement therefore does not indicate a sustained strengthening of Japan’s external trade balance.
- Elevated energy costs continue to weigh on imports: Petroleum import values surged 51.1% yoy despite volumes rising only 3.1%, while LNG import values climbed 39.2% even as quantities fell 7.3%. Middle East supply disruptions and shipping delays further complicated energy procurement. Higher import costs remain an important counterweight to strong export demand.
- External demand remains supportive but vulnerable: September’s trade data show that AI-related investment continues cushioning Japan’s export sector. However, slowing headline export growth, uneven automotive demand and elevated energy costs present risks to the outlook. A prolonged Middle East conflict or moderation in global AI investment could further constrain export momentum.
