The latest appointments in corporate communications

Serge Gas is the new director of the Division of Public Information at the International Atomic Energy Agency (IAEA).

Former FT journalist Sundeep Tucker has become head of corporate communications for Nomura Securities' EMEA region, having transferred to London from the bank's Hong Kong office where he was head of corporate communications for Asia ex-Japan.

Viadeo, the professional social network with 45 million members worldwide, has announced Mary Beth Henson is its new director of public relations and communications, effective June 2012.