An electrical firm in Denbighshire has announced it will close its facility resulting in more than 150 job losses.
The news of the Honeywell site in St Asaph is a "huge blow" to the North Wales economy according to Unite union.
The firm said it was proposing to transfer all activities from the North Wales site to "consolidate core manufacturing processes in fewer locations."
They added "we realise this affects valued employees and we are committed to open communication".
The MP for the Vale of Clwyd, Chris Ruane, shared his disappointment with the announcement and said it was terrible news for the staff.
The Unite Wales Regional Secretary, Peter Hughes, said: "Today’s announcement by Honeywell that they intend to close their St Asaph site is a huge blow to their exceptional workforce and the wider economy of North Wales.
This decision has come completely out of the blue, with no prior consultation or discussion with Unite and the workforce. Honeywell employees who went to work yesterday thinking they had a secure job and income for their families, have today had their futures thrown into complete disarray.
From what limited information Honeywell has provided us with we see absolutely no business sense behind this decision. We will be using the upcoming consultation period to forensically question the company’s plans and will be working closely with our members to put forward alternative proposals to reverse this decision. Our objective is to work towards a viable future for the site and to fight for every single job at St Asaph”.