Relieved workers have returned to Tasmania's largest abattoir in Longford on Friday morning, following the imposed hiatus from a Russian cyber attack on JBS Foods earlier this week.
Previously paralysed IT systems at the global beef and lamb giant - based in the US and Brazil - are slowly coming back online.
"JBS Longfood are back at work today on the slaughter floor so all workers associated with the slaughter side of the business are back up and running. And the boning room side of things will be back up and running on Monday morning," Australasian Meat Industry Employees Union State Secretary Andrew Foden said.
Over 250 people are employed at the Northern Tasmanian facility.
Australia-wide, the company employs about 11,000 people across 47 locations.
"A lot of the [Tasmanian] workers will be taking annual leave for the period of shutdown which I believe is only 4 days. It's actually an excellent outcome," Mr Foden said.
The FBI has identified REvil - also known as Sodinokibi - a Russian-speaking gang, as the perpetrators behind the ransomware attack.
It's unclear whether the world's largest meat packer paid a ransom to the hackers.