The Trust House-owned Greytown community store is up for sale due to intense competition from the larger Fresh Choice supermarket.
Trust House chief executive Allan Pollard yesterday said the "tough decision" had to be made and a week ago the business was put on the market as a going concern and had already attracted "half a dozen-plus inquiries".
Mr Pollard said the primary concern was the retention of jobs for 20-plus staff who worked either full or part-time.
Selling as a going concern meant existing staff could apply for positions with the new owners.
Mr Pollard said he could give a categorical assurance if the business did not sell Trust House would continue trading.