Vacuum manufacturer Hoover Candy is set to decide the future of its Cambuslang factory, BBC Scotland understands.
Workers are expected to be told on Wednesday whether the plant, near Glasgow, will close with the loss of 300 jobs.
Unions had asked for clarification on the factory’s future following a decision last month to move some production to China.
One union representative said that staff were “fearing the worst”.
Hoover has been manufacturing vacuums in Cambuslang for almost 60 years, employing 5,000 people during the 1970s.
Last year the company said a contract to build a new generation of cleaners would safeguard jobs at Cambuslang.
‘Firm option’
It had fought off competition from a sister plant in Portugal to clinch the £1.25m deal.
However, BBC Scotland business correspondent Hayley Millar said the factory was losing about £1m a month despite “substantial” investment in the facility.
“Hoover Candy has been considering closure as a very firm option for Cambuslang,” she said.
“It was sparked by a decision a few weeks ago to move one production line to China to finish off a run.
“It was at the low end, the cheaper vacuum cleaners, and the reason for moving it is because wages in China are about a tenth what they are here in Scotland.”
She told BBC Radio’s Good Morning Scotland programme that a decision was likely to be taken in less than 24 hours.
Eddie McAvoy, the AEEU union convener at the factory, said he did not want to speculate on rumours.
“At this stage, nothing has been announced and we have not been told of any announcement,” he said.
“But everyone has heard the rumours and we are fearing the worst.”
>From BBC Scotland