Kokubo Ice Refrigeration Co., Ltd. (KOKUBO Group, Yachiyo City, Chiba Prefecture, President Toyoshi Sakai, hereinafter Kokubo Ice Refrigeration) will begin distributing "Kotsubu ROCK® 300g" as a measure against heatstroke to all 31 Yachiyo City elementary schools, junior high schools, and schools for compulsory education starting July 1, 2026. We will support children who work hard in their studies and sports even in the hot summer through enlightenment activities on heat countermeasures using ice. Additionally, a "Presentation Ceremony" will be held on July 7 (Tue.) at Yachiyo City Katsutadai Elementary School, attended by student representatives and representatives from Kokubo Ice Refrigeration. Kotsubu ROCK® 300g Heatstroke Prevention Enlightenment Flyer Heatstroke Prevention Awareness Poster ● About the "Rock Ice®" Distribution Activity In an environment where heat and countermeasures against it are becoming a social issue, we began this distribution activity in 2020 with the desire to support children facing the hot summer as much as possible. In 2026, we will continue this initiative to support children in getting through the hot summer with the "cooling power" of Rock Ice. [Distribution Overview] Period: July 1 (Wed.) - July 14 (Tue.) Products Distributed: Kotsubu ROCK® 300g, Heatstroke Prevention Enlightenment Flyer, Heatstroke Prevention Awareness Poster Target: All 31 Yachiyo City elementary schools, junior high schools, and schools for compulsory education Quantity: Approximately 32,000 bags / Two distributions per school during the period ● About "Rock Ice" Kokubo Ice Refrigeration of the KOKUBO Group launched "Kachiwari Ice" (crushed ice packed in bags) under the brand name "Rock Ice®" in 1973, and celebrated the 50th anniversary of Rock Ice in October 2023. It is used not only in various scenes such as outdoor activities, parties, and home drinking, but also in sports and for heatstroke prevention by utilizing the "cooling power" of Rock Ice. * "Rock I