Workers at South Yorkshire firm Ardagh Glass are to start a series of strikes next week in a row over pay.
The workers, members of Unite, have voted for a strike, which will affect shifts at the company’s Barnsley and Doncaster factories.
The strikes are set to start next Friday, August 9, and run on a number of set days until Monday, September 9.
Ardagh Glass employs about 1,300 workers nationwide.
Unite deputy regional secretary Tas Sangha said: “Our dispute centres on the wage award for 2013. Our claim is for more than the current retail price index rate, which rose to 3.3 per cent in June.
“Unite is ready to hold talks with the management prior to the strikes beginning next week, so we can reach a fair settlement for our members.”