OiTr Installed at Kumamoto University's School of Informatics! Creating a Campus Environment Where Students and Faculty Can Learn and Work with Peace of Mind

Oitr Inc. (Headquarters: Shinjuku-ku, Tokyo; CEO: Makoto Sakiyama), which provides "OiTr", Japan's first* service that permanently stocks and provides sanitary napkins for free in women's private restrooms at commercial facilities, transportation hubs, public facilities, offices, and schools nationwide, announces that it has installed OiTr at the newly targeted "Kumamoto University School of Informatics (Kumamoto City, Kumamoto Prefecture)" and launched the service on April 1, 2026. This is part of their goal to realize "a society where sanitary products are as accessible in private restrooms as toilet paper."

■ New Installation Facility ・Facility Name: Kumamoto University School of Informatics ・Location: 2-39-1 Kurokami, Chuo-ku, Kumamoto City, Kumamoto Prefecture ・Website: https://www.soi.kumamoto-u.ac.jp/ ・Service Start Date: April 1, 2026 ・Number of Units Installed: 6 units ・Installation Info: https://www.oitr.jp/spot/detail/?id=f405

■ Comments from Kumamoto University School of Informatics The School of Informatics, Kumamoto University's Faculty of Data Science, develops human resources who can play active roles globally in the fields of DX and data science through small-group education that fuses humanities and sciences (admission capacity of 60 students). Under a practical curriculum such as PBL exercises and entrepreneurship education, we value an environment where diverse students, regardless of science or humanities backgrounds, learn together. To actively support the success of women in science and engineering fields, we also implement the only women's quota entrance exam at Kumamoto University.

In the lecture building D-Square, completed in 2025, we have continuously worked to create a campus environment where women can study with peace of mind, such as by enriching women's restroom facilities and setting up changing rooms and nursing rooms. By introducing "OiTr," which provides free sanitary napkins in women's restrooms, we will further promote an environment where all female students can concentrate on their studies by alleviating anxiety caused by sudden menstruation or economic circumstances.

■ About "OiTr" OiTr is a service that allows you to receive sanitary napkins for free from dispensers in women's private restrooms. By downloading the dedicated app (free) and registering an account, you can receive **one napkin every 2 hours**. Furthermore, **you can receive up to 7 napkins every 25 days, starting from your account registration date**. As of March 2026, a total of 4,120 OiTr units have been installed in 367 facilities across 34 prefectures nationwide.

Details of installation locations: https://www.oitr.jp/spot/

In addition to receiving napkins, the app also offers **"menstrual day prediction" and "physical condition management" functions**. We have received feedback such as "It's convenient to receive napkins while keeping records" and "The predictions are accurate." Furthermore, through the media "Itsudemo OiTr," which relieves women's anxiety, we disseminate information on women's physical and mental health issues, menstruation, and wellness, supporting a society where they can make positive choices with peace of mind.

■ Background of OiTr's Creation Oitr Inc. started with the mission of "solving social issues through business." Among them, we focused on the issue of "period poverty" caused by the gender gap.

In Japan, there are women who cannot access sanitary products or hygienic environments due to economic or social reasons, which brings about invisible social losses such as loss of educational opportunities, employment difficulties, and psychological burdens.

"Why aren't sanitary products permanently stocked when toilet paper is always in the restroom?" —— Triggered by this simple question, our company started an initiative to change social awareness and environments, starting from the restroom space, which is the most familiar in daily life.

■ Initiatives Against "Period Poverty" In Japan, "period poverty" is often perceived as an economic problem, but globally, it refers to a state of being unable to access the minimum necessities for menstruation, including not only sanitary products but also clean water, sanitary environments, and education on biology and reproduction. The inability to access sanitary products is not merely a material issue; it has a profound impact on one's entire life, including dignity, health, education, and labor. While measures such as free provision, reduced tax rates, and tax abolition are progressing globally, the current situation in Japan is that support is still limited to the municipal level.

Our company hopes to create an environment where sanitary products are "naturally present" in daily life, providing an opportunity to reconsider what has been "normal" up until now. We hope that this initiative will become the first step toward a society where everyone can live with peace of mind, and that more empathy and action will spread.

### Contact Information For inquiries regarding the installation and introduction of "OiTr" dispensers and advertising placement in the women's private restroom advertising media "OiTr ads," please contact us below. Inquiry Form: https://www.oitr.jp/contact/

### Company Profile Company Name: Oitr Inc. Location: Front Place Yotsuya 2F, 3-2-1 Yotsuya, Shinjuku-ku, Tokyo 160-0004 Representative: Makoto Sakiyama, CEO Established: November 1, 2016 Business Activities: IoT Business Official Website: https://www.oitr.jp Official Media: "Itsudemo OiTr" https://oitr.jp/media/

With the vision of "Good for you, good for society," we launched "OiTr" with the mission of solving social issues through business. We are building this sustainable solution and working to realize "a society where sanitary products are as accessible in private restrooms as toilet paper." Through this business, we aim for a society where customers and users pursue what is "good" by considering the interests of society as a whole at the same time as their personal interests.

* "Japan's first": As a service that distributes advertisements on digital signage built into dispensers installed in women's private restrooms, uses the advertising sponsorship fees as a financial resource to provide sanitary napkins for free to users from the dispensers, and authenticates and controls receiving them in conjunction with a dedicated mobile app. According to our research (Survey date: February 24, 2026). Based on public information such as official websites, press releases, major news reports, and published materials by public institutions and local governments.