The Gudeng brand of soy sauce from Taiyuan MSG Factory is the factory’s famous brand and its sales volume is very good.

Taiyuan Gudeng Seasoning Food Co., Ltd. (formerly Taiyuan MSG Factory) was changed to a joint-stock enterprise in 1997. It is a large-scale condiment manufacturer in Shanxi Province and a "Chinese Time-honored Brand" enterprise named by the Ministry of Domestic Trade. . It began producing soy sauce in 1939. Its main products include soy sauce, vinegar, sauce, fermented bean curd, seasoning oil, chicken essence, monosodium glutamate, and cooking wine, with more than 80 varieties in eight categories. All products are brewed from pure grains. Soy sauce was rated again in 2005 As a "Shanxi Famous Brand Product", vinegar was rated as a "National Inspection-Free Product". In 2002, Shanxi Province was among the first batch to obtain the "National Industrial Product Production License" product trademark "Jinyang Ancient Lamp", and "Ancient Lamp" was rated as Shanxi Provincial famous trademark.

1. (Taiyuan) MSG Factory Soy Sauce and Vinegar Address: About 150 meters east of the intersection of North 4th Lane, Jinyang Street and Jinyang Street, Xiaodian District, Taiyuan City (about 50 meters southeast of the Cultural Square). 2. (Taiyuan) State-owned MSG Factory Soy Sauce Shixing Vinegar, No. 371 Jiefang Road. 3. Ninghua Fu Vinegar (Taiyuan Xiliu Street Store): Opposite Building 22, Xinghua North Community, Xinghua Street, Jiancaoping District, Taiyuan City, Shanxi Province.