The move is a result of the integration of the Rubicon business in 2008. Under the proposals, Rubicon's Mansfield site will close and production shift to AG Barr's Scottish headquarters in Cumbernauld.
AG Barr, which will invest between £8m and £10m over the next year in increasing capacity at the Cumbernauld site, plans to complete the closure of the Mansfield site by early 2011.
Distribution workers will be made redundant over the course of 2010 as the company shifts to a single external logistics provider.
"There are currently 98 members of staff employed across production and logistics at the Mansfield site and in addition a small number of further employees will be impacted by these proposals," said a statement from the manufacturer, which has entered into a consultation process with employees.
Mansfield employees reacted angrily to the proposals on an internet forum, accusing the company of a lack of investment.
"Let us understand that this is not a failing business, profits have been increasing, thanks to the hard work and dedication put in by all members of staff," said one. "All this could have been avoided if proper investment had been put into the Mansfield site."