Best Environment & Water Trade Shows in Japan

32 tracked shows, ranked by exhibitor count

Event Scout currently tracks 32 Environment & Water trade shows in Japan with editions in 2026 & 2027. Together they host an estimated 5,744 exhibitors, led by NEXT-GEN THERMAL POWER EXPO -TPEX- (formerly ZERO-E THERMAL EXPO) 2027 (an estimated 1,422 exhibitors). Leading host venues include Tokyo Big Sight (West Halls 1-4, Atrium, Conference Tower), Sophia University (Graduate School of Global Environmental Studies) and TKP Garden City PREMIUM Tenjin. Events run across 6 regions including Aichi Prefecture, Chiba Prefecture and Fukuoka Prefecture.

What counts as a Environment & Water trade show: Environment & Water trade shows cover water supply, treatment and management, sewage and wastewater technology, air and pollution control, plus ecology, climate, sustainability and the stewardship of natural resources.

Top Environment & Water trade shows in Japan

Upcoming Environment & Water trade shows in Japan

Event

Date

Location

Exhibitors

NEXT-GEN THERMAL POWER EXPO -TPEX- (formerly ZERO-E THERMAL EXPO) 2027Flagship18 Nov 2026Tokyo, JP18 Nov 2026Tokyo, JP1,422Fact
JAPAN BUILDInternational2 Dec 2026Tokyo, JP2 Dec 2026Tokyo, JP401Fact
Recycle Tech Japan- Recycling Innovation and Eco-System Development ExpoInternational30 Sep 2027Tokyo, JP30 Sep 2027Tokyo, JP972Fact
Sustainable Material ExpoInternational30 Sep 2027Tokyo, JP30 Sep 2027Tokyo, JP972Fact
PAN-EXHIBITION FOR WASH AND CLEAN 2026National16 Sep 2027Tokyo, JP16 Sep 2027Tokyo, JP148Fact
AUTOMOTIVE WORLDInternational25 Nov 2026Nagoya, JP25 Nov 2026Nagoya, JP22Estimate
Factory Innovation Week Osaka l Future Factory Technology ShowNational12 May 2027Osaka, JP12 May 2027Osaka, JP416Estimate
AUTOMOTIVE WORLD [September]National9 Sep 2027Chiba (Makuhari Messe, JP9 Sep 2027Chiba (Makuhari Messe, JP380Estimate
SMART FACTORY EXPO (SFE) JAPAN 2027National17 Feb 2027Tokyo, JP17 Feb 2027Tokyo, JP291Estimate
EV JAPANSmall17 Feb 2027Tokyo, JP17 Feb 2027Tokyo, JP36Fact
GREEN FACTORY EXPO JAPANNational1 Jul 2027Chiba (Makuhari), JP1 Jul 2027Chiba (Makuhari), JP291Estimate
EAIT 2026International16 Sep 2027Hachioji, JP16 Sep 2027Hachioji, JP10Estimate
The 16th IEEA 2027International24 Feb 2027Tokyo, JP24 Feb 2027Tokyo, JP
InterAquaNational16 Dec 2026Tokyo, JP16 Dec 2026Tokyo, JP14Estimate
Open Source Summit JapanSmall7 Dec 2026Tokyo, JP7 Dec 2026Tokyo, JP32Estimate
ACESD 2026International6 Nov 2026Tokyo, JP6 Nov 2026Tokyo, JP
ACEEP 2026>>Tokyo, JapanInternational6 Nov 2026Tokyo, JP6 Nov 2026Tokyo, JP
ICAAA 2027International8 Jan 2027Fukuoka, JP8 Jan 2027Fukuoka, JP
ICAER 2027International8 Jan 2027Fukuoka, JP8 Jan 2027Fukuoka, JP
ISCEAS International Scientific Conference on Engineering and Applied SciencesInternational22 Jan 2027Osaka, JP22 Jan 2027Osaka, JP
ICESD2027International28 Mar 2027Tokyo, JP28 Mar 2027Tokyo, JP
ICMEN 2027 @ KyotoInternational2 Apr 2027Kyoto, JP2 Apr 2027Kyoto, JP
CEES2027International28 Apr 2027Osaka, JP28 Apr 2027Osaka, JP
ICESE2026International18 Sep 2027Tokyo, JP18 Sep 2027Tokyo, JP
CEESD 2026International30 Sep 2027Tokyo, JP30 Sep 2027Tokyo, JP
International Conference on Social Science and Sustainable DevelopmentInternational4 Nov 2027Fukuoka, JP4 Nov 2027Fukuoka, JP
World Conference on Renewable Energy & Sustainable Energy 2027International18 Mar 2027Osaka, JP18 Mar 2027Osaka, JP
Plant Science ConferenceInternational26 Apr 2027Narita (Tokyo), JP26 Apr 2027Narita (Tokyo), JP
Sewage Works Exhibition 2027 TokyoRegional27 Jul 2027Tokyo, JP27 Jul 2027Tokyo, JP
ICCGE 2026International1 Aug 2027Tokyo, JP1 Aug 2027Tokyo, JP
AUTOMOTIVE WEIGHT REDUCTION EXPO JAPANSmall30 Mar 2027Tokyo, JP30 Mar 2027Tokyo, JP22Estimate
INCHEM TOKYO 2027Regional26 Feb 2027Tokyo, JP26 Feb 2027Tokyo, JP315Estimate

Facta confirmed count from the event's captured exhibitor roster.Estimatea modeled approximation, not a confirmed figure.

Frequently asked questions

How many Environment & Water trade shows are there in Japan?

Event Scout currently tracks 32 Environment & Water trade shows in Japan, with editions in 2026 & 2027.

When is Environment & Water trade-show season in Japan?

By start date, most tracked Environment & Water trade shows in Japan run in September and November.

What is the largest Environment & Water trade show in Japan?

Measured by estimated exhibitor count, the largest tracked event is NEXT-GEN THERMAL POWER EXPO -TPEX- (formerly ZERO-E THERMAL EXPO) 2027, with an estimated 1,422 exhibitors.

Compiled from public sources and periodically reviewed and updated. This information is provided for general guidance only and may be incomplete or out of date — please verify all details directly with the organizer or venue before relying on them.

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