A 10year contract for a newly built dedicated &lsquowalltowall&rsquo metal packaging operation in south korea has been agreed between international packaging company, ardagh group, and leading south korean food processor, sajo. The state of the art plant, which recently began operations, will produce cans predominantly for sajo&rsquos tuna range for the south korean market, where it is a market leader, with smaller volumes for salmon and chicken breast.