A total of 300 jobs will now go at the plant.
The company entered into a consultation period with unions in January after announcing that the plant would probably have to close as it was no longer economic.
In January, managing director Peter Judge had commented: "Against the backdrop of the continuing worsening of the UK economy we have been looking at a number of ways in which to secure a long term future for the Bromborough site, unfortunately however, we cannot currently see a viable alternative to closure."
At the time it was also revealed that production would transfer to plants at Kings Lynn in Norfolk and Boston in Lincolnshire.
Commenting on the mood at the plant following the announcement Chris Mann, a senior shop steward for the union Unite: "A grey cloud has descended over us all today and we are devastated. We knew from the start we were up against it. Over the last two months we put our own counter proposals to the company but it wasn't enough so now we will be discussing our redundancy terms. There are 20 couples who work here, that's two wage packets gone in those households."
Unite's Regional Industrial Organiser Franny Joyce added: "We have reluctantly accepted this and we need to now concentrate on redundancy packages and ensure we do all we can to help people find jobs."