Late last year, as the Chinese government prepared to enact tough new tax rules, the billionaire Sun Hongbin quietly transferred $4.5bn worth of shares in his Chinese real estate firm to a company on a street corner in Sioux Falls, South Dakota, one of the least populated and least known states in the US. Sioux Falls is a pleasant city of 180,000 people, situated where the Big Sioux River tumbles off a red granite cliff. It has some decent bars downtown, and a charming array of sculptures dotting the streets, but there doesn’t seem to be much to attract a Chinese multi-billionaire. It’s a town that even few Americans have been to.
The money of the world’s mega-wealthy, though, is heading there in ever-larger volumes. In the past decade, hundreds of billions of dollars have poured out of traditional offshore jurisdictions such as Switzerland and Jersey, and into a small number of American states: Delaware, Nevada, Wyoming – and, above all, South Dakota. “To some, South Dakota is a ‘fly-over’ state,” the chief justice of the state’s supreme court said in a speech to the legislature in January. “While many people may find a way to ‘fly over’ South Dakota, somehow their dollars find a way to land here.”