The amount of an individual's weekly benefit is based on earnings in the employee's base pay period.
The maximum weekly benefit is $424. There is a one-week waiting period for benefits, so employees could have received six weeks of payments. At up to $424 a week, an individual could receive a maximum total benefit of $2,544.
Sisk said Workforce West Virginia cannot release details of the case or the decision to the public, so details on the exact payout are unknown.
If all 609 employees received the maximum, that would be a total payout of more than $1.5 million from the Unemployment Compensation Trust Fund.
The fund is financed by a tax on employers. The decision will likely raise Constellium's tax rate in future years.
Sisk could not say how much this would affect Constellium's rate, however.
"We can't estimate at this point what the employer's tax rate will be for 2013," she said. "It will go up based on the claims filed but we can't say how much."
Constellium does have the option to appeal the decision to Kanawha Circuit Court. A company spokeswoman did not respond to a request for comment Thursday evening.
Contact writer Jared Hunt at busin...@dailymail.com or 304-348-4836.