"Both clients have demanding brand requirements, and our role is to produce innovative packaging for them across a variety of formats," said managing director Chris Ellison.

OPM joined the two firms', and third party suppliers', rosters after successfully undergoing a raft of audits on its production operation to ensure that it met the two retailers stringent quality requirements.

The firm has also recently been category B accredited by the British Retail Consortium and Institute of Packaging for its "standard in supplying food packaging materials for retailer branded products".

The short-run flexible packaging and label specialist  produces material for the food, retail, cosmetics, brewing and confectionary clients.