Las Vegas Sands' $3.35bn Hong Kong initial public offering, which launches today, will enable the company to restart projects frozen one year ago in Macao, restoring its fortunes in the world's largest gaming market, its chairman says.

The global offering by Sands China, which operates three casinos in the Chinese special administrative region, caps a remarkable comeback for Sheldon Adelson, the self-made billionaire chairman and son of a Boston taxi driver.

Last year Las Vegas Sands was forced to suspend construction on an extension to the Venetian Macao integrated resort complex, which includes the world's largest casino, and warned investors that failure to raise emergency funds could result in “substantial doubt about our ability to continue as a going concern”.