Offshore Tech Japan 2026 (8th Ocean Industry Technology Exhibition)
Subsea Tech Japan
Formerly Subsea Tech Japan; rebranded Offshore Tech Japan. Next edition 16–18 December 2026 at Tokyo Big Sight, co-located with ENEX and Renewable Energy.
- Dates
- December 16, 2026 — December 18, 2026
- Hours
- 10:00 AM – 5:00 PM
- Venue
- Tokyo Big Sight
- Frequency
- Once a year
Please double-check the dates and location on the organizer website before attending.
About Offshore Tech Japan (formerly Subsea Tech Japan)
The official Subsea Tech Japan site states that the show was reborn as Offshore Tech Japan in January 2024. It is now the ocean-industry technology exhibition on utilisation of marine resources, staged inside the Energy Innovation Comprehensive Exhibition.
Dates: 16–18 December 2026, 10:00–17:00
Venue: Tokyo Big Sight (West Halls 1–2, atrium / conference tower; hall assignment to be confirmed)
Edition: 8th Ocean Industry Technology Exhibition
The show covers marine measurement and observation equipment, offshore materials, sensing, marine consulting, AUVs/ROVs/underwater drones, subsea cables and marine renewable energy (including offshore wind). It runs concurrently with ENEX 2027, the World Renewable Energy Exhibition and InterAqua. The 2026 dates were brought forward because Tokyo Big Sight will be fully closed in January–February 2027 for renovation.
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