Welsh Secretary David Jones says it's "very worrying" that Newport-based steel contractor Rowecord is to go into administration.
"It was a business that had done very well in the past. There will be a lot of people in that area extremely concerned for their jobs," he added.
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Rain clipping the far north through the evening but elsewhere staying dry with some sunny spells.
Public Health Wales figures show 25 more cases of the virus have also been confirmed.
Photos taken on Saturday morning show Roald Dahl Plass strewn with empty beer bottles and discarded canisters of laughing gas.