The original 24-strong chain of FreshXpress was formed when Kwik Save went into administration last July and sold off its estate. At that time B&M Bargains bought eight former Kwik Save stores.
Nine FreshXpress stores were taken on by MD Andrew King in March, after the original chain of 24 went into administration. But despite attempts to make the business more efficient, the Hull and Oswestry stores have closed.
Simon Arora, joint MD of B&M Bargains, said the purchase was a one-off and he was not aware of any other FreshXpress stores for sale. "We will be trading in four weeks time and will keep on all 12 staff," he added.
B&M Bargains planned to double its estate to 100 in the next "three to five years," said Arora.