Firefighters have spent the night tackling a large fire at the Horwich Loco Industrial Estate, off Chorley New Road.
The fire involved a recycling plant, used for manufacturing bottle tops, and a large amount of plastic.
Station Manager Wayne Guffogg said: "Firefighters worked hard to contain the fire to the building involved and stop it spreading to neighbouring businesses.
"We worked with local businesses to re-open the roads on the industrial estate and allow workers to go about their day to day business."
More top news
Remaining cold and wintry. Best of any sunshine Saturday. Possible hill snow Sunday before turning milder
Drones are seized at a rate of more than one a week at HMP Liverpool and conditions are described by inspectors as the worst they've seen.
Frost and ice overnight, with snow on hills. Cold and showery to end the week. Saturday looks like the best day of the weekend.