Oversea-Chinese Banking Corporation Limited is engaged in banking, life assurance, general insurance, asset management, investment holding, futures and stock broking. It operates in five segments: Global Consumer/Private Banking, Global Consumer Banking and Global Corporate/Investment Banking.

The bank's global network has grown to comprise subsidiaries, branches, and representative offices in 15 countries and territories. It has retail banking subsidiaries in Malaysia, Indonesia, Hong Kong, and China, and branches in China, Hong Kong, Japan, Australia, the UK and US.