The British trade union Unite delivered a letter to Japanese Ambassador to the UK Koji Tsuruoka urging him to intervene in a dispute with Fujitsu Limited, the union revealed in a 20 April press release.
At the time of handing over the letter, workers had already engaged in eight days of strike action, with a further seven scheduled. Striking staff were based at sites in Birmingham, London, Belfast and Manchester.
The dispute stems from issues over pay, pensions, job security and union recognition.