Kokubo Seihyo Reizo Featured in Career Education Supplementary Material "Discovery Exploration Chiba Prefecture 2026 Edition"
Kokubo Seihyo Reizo Co., Ltd. continues its activities to convey the meaning and joy of work to future generations by featuring company information in the career education supplementary material "Discovery Exploration Chiba Prefecture 2026 Edition." The flagship product "Rock Ice®" celebrates its 50th anniversary, and the company is also promoting social contribution in heatstroke prevention and sports.
📋 Article Processing Timeline
- 📰 Published: April 27, 2026 at 19:00
- 🔍 Collected: April 27, 2026 at 10:31
- 🤖 AI Analyzed: April 27, 2026 at 11:45 (1h 13m after Collected)
Kokubo Seihyo Reizo Co., Ltd. (KOKUBO Group, Yachiyo City, Chiba Prefecture, Representative Director & President: Toyoshi Sakai) has published company information in the career education supplementary material "Discovery Exploration Chiba Prefecture 2026 Edition" with the aim of contributing to the region and society through career education. We are committed to communicating our role and value in society and hope that children who will lead the future will learn the meaning and joy of work. We will also conduct interactive classes to provide opportunities for children to think about their future careers.
● About the Career Education Supplementary Material "Discovery Exploration Chiba Prefecture 2026 Edition"
"Discovery Exploration Chiba Prefecture" is produced as career education supplementary material for 2nd-year junior high school students in Chiba Prefecture and is intended for use during comprehensive learning time as part of career education. Kokubo Seihyo Reizo has continuously been featured in the publication since the 2023 edition.
For the 2026 academic year, 53,000 copies are being distributed sequentially from April 13 (Monday) to 2nd-year students in 366 public junior high schools in southern and northern Chiba Prefecture.
● Overview of Interactive Classes
In the 2025 academic year, workshops were held at three schools in Chiba Prefecture, introducing the company and its manufacturing processes, and focusing on the theme "Let's think about self-promotion." We will continue to support career education through interactive classes in the 2026 academic year.
● About "Rock Ice"
Kokubo Seihyo Reizo of the KOKUBO Group launched "Kachiwari Ice" (crushed ice in bags) under the brand name "Rock Ice®" in 1973, celebrating the 50th anniversary of Rock Ice in October 2023. "Rock Ice" is used in various situations such as outdoor activities, parties, and home drinking, and its "cooling power" is also utilized in sports and for heatstroke prevention.
*"Rock Ice" is a registered trademark of Kokubo Seihyo Reizo.
● Participation in the "Heatstroke Prevention Voice Call Project"
Kokubo Seihyo Reizo, representing the KOKUBO Group, is a supporting company of the "Heatstroke Prevention Voice Call Project" and is further promoting various activities for heatstroke prevention utilizing the "cooling power" of Rock Ice.
● About KOKUBO Group
The KOKUBO Group has factories and sales networks nationwide, and through delivering its flagship product "Rock Ice®" to customers, all employees are committed to "creating a rich food culture nurtured by ice." We are pursuing new possibilities for Rock Ice, engaging in social contribution activities such as sports icing and heatstroke prevention, and various initiatives with professional and student sports teams.
The KOKUBO Group is also actively promoting employee health, for example, by installing training gyms, and has been certified as a "Health Management Excellent Corporation 2026 (Small and Medium-sized Enterprise Division)." We will continue to make health maintenance and promotion a management issue and strive to create a better workplace.
≪Company Overview≫
Company Name: Core KOKUBO Holdings Co., Ltd.
Location: R.I.C. Building 9F/10F, 3-36-30 Honcho, Funabashi City, Chiba Prefecture
Representative Director & President: Ryuhei Kokubo
Established: May 2016
Group HP: https://kokuboice.co.jp/
≪Group Companies≫
Company Name: Kokubo Seihyo Reizo Co., Ltd. ・Higashi Nihon Kokubo Co., Ltd. ・Hokkaido Kokubo Co., Ltd.
Location: 1739-4 Murakami, Yachiyo City, Chiba Prefecture ・Tokai Kokubo Co., Ltd. ・Nishi Nihon Kokubo Co., Ltd.
Representative Director & President: Toyoshi Sakai ・Kyushu Kokubo Co., Ltd.
Established: September 1969 ・KOKUBO ROCK ICE (THAILAND) CO.,LTD. and others
● About the Career Education Supplementary Material "Discovery Exploration Chiba Prefecture 2026 Edition"
"Discovery Exploration Chiba Prefecture" is produced as career education supplementary material for 2nd-year junior high school students in Chiba Prefecture and is intended for use during comprehensive learning time as part of career education. Kokubo Seihyo Reizo has continuously been featured in the publication since the 2023 edition.
For the 2026 academic year, 53,000 copies are being distributed sequentially from April 13 (Monday) to 2nd-year students in 366 public junior high schools in southern and northern Chiba Prefecture.
● Overview of Interactive Classes
In the 2025 academic year, workshops were held at three schools in Chiba Prefecture, introducing the company and its manufacturing processes, and focusing on the theme "Let's think about self-promotion." We will continue to support career education through interactive classes in the 2026 academic year.
● About "Rock Ice"
Kokubo Seihyo Reizo of the KOKUBO Group launched "Kachiwari Ice" (crushed ice in bags) under the brand name "Rock Ice®" in 1973, celebrating the 50th anniversary of Rock Ice in October 2023. "Rock Ice" is used in various situations such as outdoor activities, parties, and home drinking, and its "cooling power" is also utilized in sports and for heatstroke prevention.
*"Rock Ice" is a registered trademark of Kokubo Seihyo Reizo.
● Participation in the "Heatstroke Prevention Voice Call Project"
Kokubo Seihyo Reizo, representing the KOKUBO Group, is a supporting company of the "Heatstroke Prevention Voice Call Project" and is further promoting various activities for heatstroke prevention utilizing the "cooling power" of Rock Ice.
● About KOKUBO Group
The KOKUBO Group has factories and sales networks nationwide, and through delivering its flagship product "Rock Ice®" to customers, all employees are committed to "creating a rich food culture nurtured by ice." We are pursuing new possibilities for Rock Ice, engaging in social contribution activities such as sports icing and heatstroke prevention, and various initiatives with professional and student sports teams.
The KOKUBO Group is also actively promoting employee health, for example, by installing training gyms, and has been certified as a "Health Management Excellent Corporation 2026 (Small and Medium-sized Enterprise Division)." We will continue to make health maintenance and promotion a management issue and strive to create a better workplace.
≪Company Overview≫
Company Name: Core KOKUBO Holdings Co., Ltd.
Location: R.I.C. Building 9F/10F, 3-36-30 Honcho, Funabashi City, Chiba Prefecture
Representative Director & President: Ryuhei Kokubo
Established: May 2016
Group HP: https://kokuboice.co.jp/
≪Group Companies≫
Company Name: Kokubo Seihyo Reizo Co., Ltd. ・Higashi Nihon Kokubo Co., Ltd. ・Hokkaido Kokubo Co., Ltd.
Location: 1739-4 Murakami, Yachiyo City, Chiba Prefecture ・Tokai Kokubo Co., Ltd. ・Nishi Nihon Kokubo Co., Ltd.
Representative Director & President: Toyoshi Sakai ・Kyushu Kokubo Co., Ltd.
Established: September 1969 ・KOKUBO ROCK ICE (THAILAND) CO.,LTD. and others