For over a quarter of a century, the four-day business event has attracted high-level delegations, including heads of state and government, along with business leaders, from more than 130 countries and territories around the world.
As the city of St. Petersburg was gearing up for the much-awaited event, our correspondents took a tour of the venue to give you a glimpse of its preparation.
Take a look at Sputnik's gallery to check out the ongoing progress: