Bubble Star Co., Ltd. Changes Company Name to "Purelles Co., Ltd." from April 1, 2026, to Strengthen Wellness Domain

Background of the Name Change In recent years, against the backdrop of growing interest in extending healthy life expectancy and preventing lifestyle diseases in Japan, interest in "wellness" – maintaining and improving health in daily life – has expanded. Particularly in the gut health category, which is our main market, various research is progressing worldwide, and the market continues to grow with the spread of its effects. In response to this increasing health consciousness, our company has decided to further develop the businesses we have undertaken so far and strengthen our value proposition in the wellness domain, thus implementing this name change and brand renewal.

This name change aims to refresh the corporate brand image and achieve further growth and leap forward. Along with this, the corporate logo and corporate website will also be renewed, undergoing a brand renewal. Based on a new vision, we will strive to create even greater value.

**■ Date of Name Change: April 1, 2026** **■ New Company Name: Purelles Co., Ltd.** **■ Old Company Name: Bubble Star Co., Ltd.** **■ New Corporate Website: https://purells.co.jp/**

Thoughts Behind the Logo Mark We have set the company name as "Purelles," a coined word combining "Pure" and "Wellness," which embody "safety and security" and "health" – the values we have most emphasized. The radiance at the center of the logo represents our corporate mission to "contribute to people's further healthy lives," brightening people's lives.