The "company's corporate governance system, controlled by Kishimoto, has failed to function... We believe true enhancement of the company's corporate value is not possible without his departure," the Asia-focused fund said in a statement.

Kishimoto's departure will enhance the paper firm's corporate value over the long term, said Oasis, Hokuetsu's biggest shareholder with a stake of over 18%.

(Reporting by Urvi Dugar in Bengaluru; Editing by Christopher Cushing)