132 jobs could be lost after aluminium giant Sapa announced a consultation that could see the closure of its plant in Bedwas, near Caerphilly.
The company said it needs to remain competitive in the face of "significant changes" to its markets in recent years.
More top news
Organisers say there will be increased security at the Urdd National Eisteddfod, which began in Bridgend today.
Any remaining heavy or thundery showers will clear eastwards this evening.
Over 70 firefighters are currently tackling the fire, which is now confirmed to be at a scrap yard.