Closure fears at Colchester printing firm
A printing firm has confirmed it is looking at shutting a site in Essex, which employs about 150 people.
Polestar Group said a 90-day consultation had begun with workers about the possible closure of its site in Colchester.
It said the move was in response to a declining demand in the site's core market and increasing costs.
The Unite union said it wanted to meet with the company's management to discuss ways of keeping the site open.
Peter Andreou, Polestar's group operations director, said: "We are still faced with increasing manufacturing costs and must ensure that we continue a first rate service.
"Therefore, addressing our capacity and cost base across the group will support this."
Liberal Democrat MP for Colchester Sir Bob Russell said he had written to the Secretary of State for Business, Vince Cable, to look into the proposals.
He said: "It would be a huge blow to the workforce and their families if the plant was to close, or reduced in any way.
"Clearly it would also impact on the local economy in a significant way."
The site at Severalls Industrial Park has six print presses, as well as binding, mail and distribution services.