Flintshire council and trade union Unite say they will be seeking meetings with Unilever after the company's announcement yesterday that they are proposing the closure of plants across Wales.
Under the plans 225 jobs would go at Swansea, 25 at the company's distribution centre in Bridgend, and, of the 600 workers at Unilever's call centre in Wrexham, 400 would be transferred to Port Sunlight in Merseyside, 100 to Bangalore, India, and the other 100 would be lost.
Unite say they have a meeting with management at the company planned for later this month, and will be seeking confirmation that there will be no compulsory redundancies. Meanwhile Flintshire Council say they too will be seeking an urgent meeting to make sure as many people as possible will be transferred from Ewloe to Merseyside, and support those at risk of redundancy.
The company say reviews of their proposals will be conducted over the summer - with a final decision due in September.
Following yesterday's announcement the Minister for Local Government and Communities, Carl Sargeant has said the Welsh Government will concentrate on trying to help the families affected by closures.