IT services firm Fujitsu is facing nine days of strike action by staff at its Manchester office in a dispute over pay, redundancies and trade union rights.
Up to 200 staff who are members of the Amicus union have already staged eight days of strikes and are preparing to set up picket lines again after talks between the two sides broke down.
Amicus representative Ian Allinson said the company had broken agreements made with the union over pay, redundancies, redeployment and union recognition. He added that although he had been cleared of disciplinary charges against him, the company had applied sanctions including a reduction in the amount of facility time allowed for union business.
It is understood that the union recognition issue is a major bone of contention between the two sides.
Allinson said union members were planning to travel to Westminster on Wednesday to present a petition to parliament, highlighting the fact that Fujitsu is a major IT services supplier to government “and calling on them to treat staff in an ethical fashion”.
He added: “That is likely to be followed up by MPs in a parliamentary debate.”
Amicus is also planning a national day of protest on 17 March, when union members will picket a number of sites of a key Fujitsu customer.
A Fujitsu spokesperson said: "We do't comment on idustrial matters of this nature through the media."