Workers at the Fujitsu's site in Crewe will stage more strikes in a long-running dispute over pay, jobs and pensions.
Members of Unite at the IT firm will walk out for 48 hours from the 18th and 25th of May - and for 24 hours on the 22nd.
That's in addition to two other stoppages later this month, also involving workers based at Basingstoke, Belfast, Birmingham, Bracknell, Edinburgh, London, Manchester, Stevenage, Wakefield and Warrington.
Unite national officer Ian Tonks said: “The announcement of five days of new strikes demonstrates the determination of our members to fight for their jobs and employment conditions and our adamant opposition to ‘exporting’ skilled UK jobs abroad.
“The UK management of Fujitsu is intransigent and refuses to engage with its dedicated and hardworking employees. Our members will continue their fight – and the fact that 20 days of strike action has or will be held is a mark of their strong resolution.”
Last month Unite handed in a letter to the ambassador Mr Koji Tsuruoka in London criticising the ‘shameful way’ that the UK management has behaved over the proposed job losses and calling for the envoy to raise this at the ‘highest levels’ both in the UK and Japan.
The dispute centres on pay, pensions, job security and union recognition - and takes place against a background of Fujitsu’s plans to axe and offshore 1,800 jobs in the UK.