Press release
Feb 27, 2009

Announcement of New Appointments

Tokyo –27 February 2009 – Sosei Group Corporation (“Sosei”; TSE, Mothers Index: 4565), a biopharmaceutical company, is pleased to announce the following new appointment.

Akinori Mochizuki Ph.D.

Appointed as Representative Executive Officer and R&D Planning Director of Sosei R&D Ltd.

Effective immediately, Dr Akinori Mochizuki will lead the company’s research and development and join the executive management team.

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Notes to editors:

Akinori Mochizuki Ph.D.

Dr Akinori Mochizuki joined Sosei in 2004 to lead the Company's discovery efforts. In 2008, he was appointed R&D Planning Director. Prior to joining Sosei, he was a research fellow at the Respiratory Cell and Molecular Biology (RCMB) of Southampton General Hospital, University of Southampton, UK.