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news list
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![[August 19 (Wednesday) to August 21 (Friday), 2026] Notice of participation in the 28th Japan International Seafood Show.](https://image.mono.ipros.com/public/news/image/1/2068227/IPROS4776581897890701952.png?w=280&h=280)
[August 19 (Wednesday) to August 21 (Friday), 2026] Notice of participation in the 28th Japan International Seafood Show.
Iwatani Gas Co., Ltd. of East Japan will be exhibiting at the 28th Japan International Seafood Show held at Tokyo Big Sight. The event is an international seafood market over three days, aimed at "fish" and "technology," attracting seafood buyers, food buyers, and fisheries and aquaculture operators from across Japan and around the world. On the day of the event, we plan to jointly exhibit with the Iwatani Group, including Iwatani Industry, East Japan Iwatani Gas, and Iwatani Techno, showcasing high-concentration oxygen dissolution equipment "Oxygen Fighter," LPG supply equipment, hot water boilers, and more. We look forward to your visit.
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Notice of Participation in the 2026 International Welding Show from September 16 (Wednesday) to September 19 (Saturday), 2026.
Higashi Nihon Iwatani Gas Co., Ltd. will be exhibiting at the "2026 International Welding Show" held at Tokyo Big Sight in collaboration with Iwatani Corporation. This exhibition is one of the largest specialized trade shows in Japan for welding, joining, and cutting technologies, showcasing advanced products and cutting-edge welding processing system technologies in these fields. Our booth number is "2-35". We look forward to your visit.
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Regarding the merger with Tokai Sangyo Co., Ltd.
On April 1, 2024, Higashi Nihon Iwatani Gas Co., Ltd. and Tokai Sangyo Co., Ltd. merged. For more details, please refer to the related link.
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Announcement of the new official website.
The official website has been renewed! The URL has also been updated. For more details, please refer to the related links.
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Opening of a new sales office
[Opened from April 1] Hokkaido Sales Office 〒060-0807 1-1-2 Kitashichijo Nishi, Kita-ku, Sapporo, Hokkaido TEL 011-708-0277 FAX 011-747-0150
About東日本イワタニガス
開発本部
Delivering gas to a new stage of industry.
Tohoku Nihon Iwatani Gas Co., Ltd. is a high-pressure gas direct sales company focused on the cylinder business within the Iwatani Group's industrial gas operations. We are developing various businesses closer to the market. We have sales bases nationwide, primarily dealing with various high-pressure gases such as oxygen gas, nitrogen gas, argon gas, carbon dioxide gas, hydrogen gas, helium gas, and cutting gas developed for hydrogen applications, known as Hydrocut. We have established a rapid supply and safety system rooted more deeply in the local community.








![[Neutralizing agent / Coagulant] Byproduct 'Acetylene slurry' during acetylene production.](https://image.mono.ipros.com/public/product/image/255/2001517572/IPROS5161511690363759846.png?w=280&h=280)