Trade union Unite has pledged to step up its fight to save jobs at Diageo’s Scottish operations – and accused the drinks giant of “insulting” the at-risk workers.

Diageo yesterday rejected a proposal from the Scottish government that aimed to safeguard up to 900 jobs at its Johnnie Walker production facilities north of the border. Unite said it had met representatives from the GMB union to discuss their response to the situation.

“By announcing the closure of the Kilmarnock and Port Dundas sites before the end of the 90-day statutory consultation process, Diageo could not have insulted this workforce any more,” said Unite’s national officer for food and retail, Jennie Formby.

“We have requested an extension to the consultation process and will continue to fight for every possible alternative approach.”