A 31 year old man from Abertillery was sentenced to six years today after he pleaded guilty to setting fire to the Real Crisps factory in Crumlin in 2012.
Colin Goulding was told half of his sentence would be served on licence and he's already served 15 months while on remand.
Goulding admitted guilt to the second count of arson being reckless as to whether life is endangered.
The prosecution accepted the plea and said no trial would go ahead in line with the first count of arson with intent to endanger life.
Around a hundred people lost their jobs after the factory went up in flames. No one was injured in the blaze.
More top news
Catch up with the latest episode of Coast & Country where Andrew meets the sleddog racing team and Ruth goes weather watching in Snowdonia.
What a week it's been! We started with exceptionally warm temperatures, braved Doris and now it looks like we're in for a wet weekend!
Cardiff manager Neil Warnock has agreed to stay on at the City Stadium, whilst Swansea boss Paul Clement prepares for a return to Chelsea.