Convenience stores: more are being opened, but many are closingVietNamNet Bridge - While many retailers have expanded their convenience store chains, others have had to scale down their networks because of ineffective operations. Retailers have expanded their convenience store chainsVissan, a large meat supplier, has shut down 60 out of 100 convenience stores. A pioneer in opening convenience stores, G7 (Trung Nguyen) brought Ministop, the Japanese convenience store chain, to Vietnam in 2011 under the franchise mode. The convenience store chain has vowed to raise the figure to 800 this year and to 1,600 next year. And these families like buying essential goods at convenience stores.