The banking group's custody and fund services business supports domestic South Korean investors who want to tap into markets such as those of the US, Mainland China and Hong Kong.

Citigroup has opened an office in the South Korean city of Busan to support its securities services business. The office is in Busan International Finance Center, set up by the Busan Metropolitan City Government to develop Busan as a global financial hub.

The US bank is a custody and fund services provider for South Korean domestic investors who want to invest in major securities markets, including the US, Mainland China and Hong Kong. Citigroup has provided global custody services to the Korea Securities Depository for several years. 

Citigroup has more than $28.5 trillion of assets under custody and administration.