One dollar vinegar factory is located in Ninghua House (now Causeway Bay Square), No.60 Qiaotou Street, Taiyuan City. It is a China brand with a history of 640 years. It is very famous in Jinzhong, Xinzhou, Taiyuan. Every day, there is a long queue in the sales department with a big plastic bucket to buy vinegar. Not only Taiyuan people, but also consumers in many surrounding counties and cities. Taiyuan people are basically jealous of Ninghua House.