All 400 branches of collapsed retailer Wilko will close by early October with the “likely” loss of all 12,500 jobs at the chain, according to the GMB.
The union said it was informed of the development by administrators PwC on Monday morning.
PwC declined to comment.
The GMB said it meant it was now “likely” that all of Wilko’s staff would now be made redundant.
It comes after a rescue deal involving the owner of HMV collapsed.
Wilko – owned by the founding Wilkinson family for decades – collapsed into administration last month.