"Dmitry Rogozin, the head of Roscosmos, said following the findings of an investigation: 'It concluded that a manufacturing defect had been ruled out which is important to establish the truth'".
She also said the space agency was confident that the origin of the hole would ultimately be explained.
NASA spokeswoman Megan Powers said on Wednesday that, while intentional damage remains one of the possibilities under review, 'we're not expecting it was a bad actor ... we don't think that's the most likely conclusion'.
Station crew members traced the hole to the Soyuz, and quickly patched it inside with gauze and epoxy, after ground teams detected a slight loss of station pressure on August 29.
NASA informs that there was a timid plan for a spacewalk in November to gather more information.
NASA's Nick Hague and Russia's Alexey Ovchinin are due to ride another Soyuz to the station on October 11 - an arrival that will boost the crew back to five.
According to the new administrator of NASA, Jim Bridenstine it is scheduled to attend the launch and it will meet Rogozin for the first time. They had a telephone call on September 12 during which they discussed the International Space Station leak. Alexander Gerst of ESA (European Space Agency) accepted control of the orbital lab today from NASA astronaut and Expedition 56 Commander Drew Feustel.
At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 57 crew members Alexey Ovchinin of Roscosmos (left) and Nick Hague of NASA (right) pose for pictures September 14 during their Soyuz qualification exam activities.
Since the retirement of NASA's space shuttle in 2011, Russia's Soyuz has offered the only ride for people to and from the station.
Not only has he been working on board the International Space Station for months, but he's also been busy recording a song and music video. NASA says it hopes to sort the problem out then.