ReYuu Japan, Inc. engages in the telecommunications business. It operates through the following divisions: Mobile Communications-related, Reuse-related, and Others. The Mobile Communications division sells mobile phones to consumers and manages shops for mobile network carriers. The Reuse-related division recycles and sells used mobile phones and landlines through the Ecotan website. The Others division handles subscription agency for other products (contents, etc.) related information and communication fields at directly managed stores, and smartphone rental for corporations. The company was founded by Morio Takayama on June 15, 1988 and is headquartered in Osaka, Japan.