trademark paper. The production date of Hengshun six-year-old vinegar 17 is on the trademark paper, so you can have a closer look. Hengshun six-year aged vinegar 17 is produced by Shanxi Hengshun aged vinegar Co., Ltd., which was established on November 27, 22, registered at No.3248 Jingxi Avenue, Yuci District, Jinzhong City, Shanxi Province, and its legal representative is Ji Rongpeng. Business scope includes licensed items: food production and condiment production.