The GREEN×EXPO Association (Official Name: Association for the 2027 International Horticultural Expo, Chairman: Yoshinobu Tsutsui, Location: Naka-ku, Yokohama) and the 2027 International Horticultural Expo Master License Office (Chief Executive Officer: Hiroaki Shimizu, Location: Nishi-ku, Yokohama) will release original package products featuring the mascot Tunktunk from Kiyoken Co., Ltd. as official licensed merchandise for GREEN×EXPO 2027 (Official Name: 2027 International Horticultural Expo), scheduled to be held in Yokohama in 2027. The products go on sale starting July 3, 2026 (Friday).
The collaboration with Kiyoken, a company beloved across Yokohama and beyond, has already drawn a strong response, and now two long-awaited additions join the lineup: a shumai and a baked confection. Through these flavors that represent Yokohama, excitement for the Expo continues to build.
New Product Lineup
GREEN×EXPO 2027 & Kiyoken Vacuum-Packed Tuna Shumai
This new shumai puts tuna, a cornerstone of Japanese food culture, front and center, and it contains no pork. Packaged in a long-lasting vacuum-sealed pack with vivid artwork, it can be enjoyed at the everyday dinner table or as a new Yokohama souvenir.
Price: 740 yen (tax included)
Release Date: July 3, 2026 (Friday)


GREEN×EXPO 2027 & Kiyoken Yokohama Pineapple Cake with Brown Sugar
Rich pineapple jam is wrapped in dough made with butter and brown sugar from Okinawa Prefecture, then baked. The dough has a moist texture, and this original Kiyoken pineapple cake is characterized by the deep flavor of the brown sugar along with a pineapple taste that fills the mouth.
Price: 1 piece, 220 yen (tax included); 6 pieces, 1,290 yen (tax included)
Release Date: July 3, 2026 (Friday)


Scheduled Sales Locations
- Kiyoken directly operated stores and mail order
- EXPO 2027 Official Store
- And others
*Product availability may vary by store.
©Expo 2027 - 2027 International Horticultural Expo Official Licensed Product
About International Horticultural Expo 2027, Yokohama, Japan
Name: 2027 International Horticultural Expo (International Horticultural Expo 2027, Yokohama, Japan)
Official Abbreviation: GREEN×EXPO 2027
Location: Seya-ku and Asahi-ku, Yokohama City (former Kami-Seya Communication Facility site)
Period: March 19, 2027 (Friday) to September 26, 2027 (Sunday)
Theme: Scenery of the Future for Happiness
Expo Area: Approximately 100 hectares (including venue area of 80 hectares)
Class: A1 (highest rank) Class (AIPH approved + BIE certified)
Expected Visitors: 15 million people (Paid visitors: 10 million or more)
Official Website: https://expo2027yokohama.or.jp/
