Thirteen years. That's how long it took Song Chi-hyung and Kim Hyoung-nyon to build South Korea's dominant crypto exchange into a money-printing machine. Now? They're rubbing shoulders with the global ultra-rich.

Running the country's biggest digital asset trading platform clearly pays off. The duo has transformed from industry pioneers into certified billionaires, joining an elite club that most exchange founders only dream about. Not bad for betting early on Korea's crypto obsession.

While others were still figuring out blockchain basics back in the day, these two were already laying the foundation for what would become a financial empire. The timing? Impeccable. The execution? Even better.