The agency conducted an investigation at the plants last Friday (July 25) in Anglesey and Scunthorpe after hygiene standard concerns raised by a Guardian newspaper investigation.
2 Sisters Food Group said Scunthorpe has been rated as “Good” and Llangefni as “Generally satisfactory”.
FSA’s audit process has four rating outcomes: Good; Generally Satisfactory; Improvement necessary and Urgent Improvement necessary.
The two factories supply chicken to Tesco, Asda, Sainsbury's, Aldi, M&S, KFC and to farms.
2 Sisters is audited by the FSA, Defra and the British Retail Consortium in addition to unannounced customer audits and internal audits.
No legislative compliance issues raised
Ranjit Singh, CEO of 2 Sisters Food Group, said it was satisfied with the findings which show that no legislative compliance issues were raised.
“We welcomed these audits and we are pleased the FSA has worked with typical rigor and thoroughness.
“However, we must not be complacent. We operate our business in an environment of continual improvement and we will be carrying on with that to ensure we produce first-class British products for all of our customers.
“We will continue to be at the forefront of our sector by investing in our sites and leading from the front in tackling key challenges to our industry like Campylobacter.”
2 Sisters launched what it claims was the UK’s biggest ever independent study into Campylobacter, costing £6m and collecting data from 124m birds last year and the interim report will be published next year.
The audits were undertaken after an investigation by the UK newspaper, The Guardian and a call from Jeremy Hunt, the Secretary of State for Health.