Video: Angry steelworkers protest in Belgium The workers were protesting against the planned closure of a coke plant and six production lines owned by ArcelorMittal, which would see the loss of 1,300 jobs. ArcelorMittal said they had made the decision due to a fall in demand for steel in Europe. Protesters threw stones and other small items at police, who fired water cannon in return. The workers have agreed to return to work on Wednesday, following the protest.