Omnicom Group Inc.(OMC) has formed a new business unit, named Omnicom Greater China, which focuses on enhancing the Chinese as well as multinational client base, thereby maximizing the group’s global marketing and brand-building opportunities. The executive headquarters for the newly formed business unit will be in Beijing. The new unit will be led by Serge Dumont, the Vice [...] (OMC) Omnicom Group Expands into Greater China