Beer workers at the Carling plant in Burton-on-Trent, are to hold a strike ballot later this month.
The union Unite claims more than 400 staff at Molson Coors could be sacked after June 10, and reinstated on less pay.
The union says nearly 200 workers could lose as much as £9,000 a year in wages.
More top news
After a dry and bright evening, cloud and wind will increase ahead of a band of rain.
Dry this evening with some good clear spells.
A new book documenting the lives of the infamous Fewtrell brothers, has been released and sheds light on the 'Battle of Snow Hill'.