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The GREEN×EXPO Association and the 2027 International Horticultural Exposition Master License Office will open EXPO 2027 Official Store MARUZEN & Junkudo Bookstore Shin-Shizuoka on Friday, October 9, 2026. The store, inside Shin-Shizuoka CENOVA 5F, carries official licensed merchandise including mascot Tunk Tunk. On opening day Tunk Tunk holds three photo sessions, limited to 20 groups each.
Water Stand Co., Ltd. has concluded a sponsorship agreement with the 2027 International Horticultural Exposition Association, joining GREEN x EXPO 2027 as a Bronze Partner of the event's heat-countermeasures project. The Saitama City company will provide water supply spots at the expo, which runs from Friday, March 19, 2027 to Sunday, September 26, 2027. The company's stated aim is refilling reusable bottles rather than selling disposable ones.
The Ultra Heroes EXPO 2027 New Year Festival runs from December 25, 2026 to January 3, 2027 at Tokyo Dome City Prism Hall, with four live performances most days and three on December 28 and 30. The NEW GENERATION THE LIVE stages feature Ultraman Teo lead Mitsuishi Ibuki (Iwasaki Aoi) daily, plus rotating appearances by Kamiya Amane, Nakada Noa, Uemura Yu, and Morimoto Ryoma, and a January 3 talk show.
Moomin and Tunktunk, the official mascot of GREEN×EXPO 2027, will release official licensed collaboration merchandise. The tie-up draws on the resonance between Moomin's value of respect for nature and the expo's theme. Products include a mug, a plate, two handkerchiefs, and an eco bag, priced from 1,980 to 4,400 yen. The mug and plate arrive around January 2027; the rest follow in late February to early March 2027. More items are planned.