 They are Dainippon Tosho, Jikkyo Shuppan, Kairyudo, Sanseido, Kyoiku Geijyutusha, Mitsumura Tosho, Teikoku-Shoin, Taishukan Publishing, Keirinkan, Yamakawa Shuppansha, Suken Shuppan, Nihon Bunkyou Shuppan and Hitachi Solutions.The consortium began developing a virtual distribution platform for textbooks.The adopted data format for the platform is EPUB 3.