The fire happened at a factory between Phoenix Parkway and Bangrave Road in Corby.
At its height there were ten pumps in attendance and it's believed fire fighters will be on the scene for the rest of the day and into tomorrow.
No-one is thought to have been injured in the blaze.
It's unclear at this time what caused the fire.
More top news
Part of the northbound carriageway will be shut on Thursday 1 June.
Ramadan is the month in which Muslims refrain from eating and drinking during the daylight hours. This year it runs from May 26 to June 24.
A young offenders institute would be converted into a category three prison.