Hardy, who was previously purchasing manager, will be responsible for developing Polestar's strategic supplier partnerships and will lead its site-based cross-function teams.
Polestar commercial director Chris Barker said: "The effectiveness of Polestar's purchasing is critical to the group and I am delighted to appoint someone of Karen's calibre to manage it."
Hardy, who joined the Polestar Group in 2004 from the automotive and electronics sector, will have a remit covering purchasing of materials, utilities, transport and capital expenditure.
Polestar creates role to deliver group savings
Polestar has appointed Karen Hardy to the newly created role of purchasing director as part of a drive to make savings and increase efficiency across the group.
