Communications, Energy and Paperworkers (CEP) Union of Canada said that the firm is a profitable company and its difficulties are due to debt incurred as a result of various mergers and acquisitions.
The union said it has done everything it can to keep the Brampton plant running, including accepting 20% wage cuts, reductions in health and pension benefits but closure is planned for September.
"Many employees have spent most of their working lives at this plant and now the US-based company simply wants to vacate without a serious discussion with its workforce," said Dave Moffat, Communications, Energy and Paperworkers Union Ontario Region vice president.
"Offering recognition and dignity to individuals who have worked in the plant for decades is a small but important gesture to show the company cares. In this case it is clear Graphic Packaging does not."