It comes on the day that Tata Steel UK is ceasing operations at blast furnace 4 along with other associated iron and steelmaking assets, bringing an end to ironmaking at the Port Talbot site.
Yr un diwrnod, mae Tata Steel UK yn rhoi’r gorau i weithio Ffwrnais Chwith 4 a’r asedau haearn a dur cysylltiedig, gan ddod â gweithgareddau gwneud haearn ar safle Port Talbot i ben.