The venue for Russia's first Formula One race around the Sochi Olympic Park is "99 per cent" ready, according to an official from the promoter of the race.
Despite concerns the annexation of Crimea by Russia would put October's race in doubt, chiefs have signalled things are all but ready.
The confident declaration by an official from race promoter Omega, reported by Russian news agency Interfax, has also been backed up by reports more spectators will be accommodated for than originally planned.
Promoter Sergey Vorobyov is quoted by Germany's SID as saying that "due to popular demand, we have decided to build another grandstand on one of the most interesting points of the circuit".
Russian Deputy Prime Minister Dmitry Kozak has said construction and installation should be completed by August 10.
The race, the 16th on a 19-race calendar, is due to take place on October 12 at the Sochi International Street Circuit, a 5.8 kilometres track in the shadow of the indoor venues used for the Winter Olympic and Paralympic Games in February and March.
Richard Cregan, who was chief executive of the Abu Dhabi circuit, is now a consultant to Sochi organisers.
The Formula One drivers' championship is currently led by Mercedes' Nico Rosberg of Germany, who holds a 29-point advantage over his British team mate Lewis Hamilton after eight races.
May 2014: Sochi's Formula One race "not in doubt" as Ukraine crisis sparks cancellation fear
December 2013: Abu Dhabi Formula One chief drafted in to work on inaugural Russian Grand Prix in Sochi
April 2013: Sochi Formula One circuit to receive Government financial help
February 2013: Ecclestone praises Sochi Formula One circuit at Olympic Park
November 2012: Sochi will be ready to host Formula One race in 2014, promises track designer