Jiaozuo: Jiaozuo is located in the northwest of Henan Province. The quality of Jiaozuo's Huaiyam enjoys a high reputation both at home and abroad, with its stout rhizome, full flesh, and delicious flavor The history of Huaiyam cultivation in Jiaozuo area has been more than 2,000 years, and a wealth of cultivation experience has been accumulated.

Boai: Boai County, located in Jiaozuo City, Henan Province, is a region rich in natural resources and historical and cultural heritage. The quality of Boai's yam is equally praised for its long, slender roots, delicate flesh and rich nutritional value. Widely used in Chinese medicine formulas, Boai Huaiyao is considered to have the effect of nourishing and strengthening the body, nourishing the stomach and tonifying the kidneys.