The Cheema family, who operate three stores in the West Midlands under the Malcolm’s Stores banner, have resigned from Costcutter and signed a supply deal with Nisa.

The Cheemas were named Convenience Retailers of the Year in 2013, and their recently opened forecourt store in Coventry was a winner at this year’s Forecourt Trader of the Year Awards.

Nisa chief executive Neil Turton commented: “We are delighted to welcome Paul, Pinda and his family as members of Nisa and very much look forward to working closely with them over the coming years. As such well-respected retailers we value our relationship with the whole Cheema family and are pleased they have trusted us to assist them in taking their business to the next level.”

Nisa has recruited 577 new stores to the group, worth £250m in additional revenue, in the last 12 months, many of them former Costcutter outlets.

Costcutter retail director Daniel Quest said: “We always regret losing any member, especially one who has been with us for so long and I would like to thank the Cheema family for their support over the years.”

He added: “Since January, we have recruited far more retailers into the group than have left and we now have more members than ever before, further strengthening our volume and market position.”

Costcutter has also announced the creation of a new National Retailer Board, replacing its previous retailer forum, with a new governance structure put in place that will see 12 regional representatives being elected by members in their area giving an enhanced remit to engage with members across their regions. Paul Cheema formerly chaired the retailer forum.