Kao Corporation's Home Care Division will propose "Great Summer Cleaning" starting July 1, 2026, as an opportunity for families to share housework during summer vacation and become familiar with cleaning together with children. Summer is a time when stickiness on floors, odors from drains, and dirt around windows, including window screens, tend to be noticeable. The special website will clearly explain easy ways to solve common summer cleaning problems. Additionally, on the same day, we will launch "Become a Dirt Researcher!" content, which can also be used for summer vacation free research projects, to encourage children to want to clean on their own. ■ "Great Summer Cleaning" Special Website: https://www.kao.co.jp/osouji/natsu/ In recent years, more people are choosing to do their "big cleaning" not just at the end of the year, but also in the summer*1. Summer's high temperatures and humidity make floor stickiness and drain odors more noticeable. Furthermore, as people open windows more often, dirt on window screens and around windows becomes more apparent. Spending more time at home due to extreme heat can also lead to a greater focus on household dirt. Summer vacation, when there is usually more time, is a great opportunity for the whole family to tackle "big cleaning." Sharing cleaning tasks not only leads to housework sharing but also provides an opportunity for children to develop cleaning habits and deepen parent-child communication. Therefore, Kao's Home Care Division is proposing the "Start! Great Summer Cleaning" campaign from July 1, 2026, as an opportunity for families to share housework and for children to become familiar with cleaning together. *1 Kao survey conducted in 2024 and 2026 among approximately 1,000 women aged 20-60. ● Campaign to win "Great Cleaning Rewards" items and travel vouchers From July 1 to August 31, 2026, purchase eligible products such as "Magiclean," "Quickle," or "Haiter" and apply to win travel vouchers or items like encyclop