The nerve centre of CitiÆs Asia-Pacific cash management business

In a non-descript business park sandwiched between Singapore's Changi International Airport and a subway depot stands a modern low-rise office building. Built in that mercilessly repeated new international style of glass and steel, passersby would never guess that inside sits a nerve centre of Citi's Asia-Pacific cash business.

Hidden behind the mirror-like facade is the bank's Regional Cash Processing Management Unit RCPMU. Processing the bulk of Citi's cross-border fund transfers in Asia-Pacific, some 40,000 transactions worth an estimated $65 billion pass through the unit every day.

The growth has been tremendous, said Deepak Singh, director and Asia-Pacific head of regional cash management processing at Citi. Between two and three years ago, the total amount...