Members of the Public and Commercial Services (PCS) union have voted for further strikes at HP. Staff are now waiting for the union's National Disputes Committee to authorise the move.
Jim Hanson, national officer at PCS, has previously said that there could be another two-day strike.
"The members are supporting further action," said Hanson. "We’ve got to give seven days notice of strikes, so it won’t be next week."
The National Disputes Committee is expected to make its decision later today.
Hanson added that the union had not heard from HP, which could not be reached for comment at time of writing.
The industrial dispute centres on pay freezes, as well as on the 3,400 EDS staff who have been made redundant since HP took over the company in 2008, and the 1,000 job losses planned for the first half of the year.
The strikes last week took place as non-IT workers in the civil service, also in the PCS union, staged simultaneous high-profile action affecting a range of central government and judicial services.
Those taking part in the strike included staff working for HP Enterprise Services in Newcastle, Washington, Preston and the Fylde Coast. The strike action affected work at the Department for Work and Pensions, the Ministry of Defence, and car manufacturer Vauxhall.
The dispute between PCS and HP has been going on since December 2009, when HP narrowly avoided a strike by union members by agreeing to sit down to talks at the eleventh hour.
After a one-day strike in January, Hanson said the union had had a couple of meetings with the mediation organisation Advisory, Conciliation and Arbitration Service (ACAS), but that HP "wasn't willing to move far enough."
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