Staff at Tesco in Douglas have voted unanimously for industrial action in a row over plans to change working terms and conditions for workers moving to a new premises.
The ballot of the 85 Mandate members took place at a city hotel this evening and almost 90% voted in favour of action.
The row centres on plans by Tesco to remove established terms and conditions for workers moving to a new store on the same site at Douglas.
The new store will employ up to 160 people. The old store currently employs 92.
A small number of workers, known as the pre-96ers, received letters on Good Friday telling them they had to sign the new terms by last Tuesday or face redundancy at the end of this month.
Pre-96ers are those who were working with Quinnsworth when it was taken over by Tesco in 1996.
Mandate says 4,000 of Tesco 12,000 staff here are pre-96ers.