Is Dafeng Haijiano going to close?

Yes

According to the information released by China Knowledge Network on June 24th, 2022, due to the production and raw materials problems of Dafeng Factory, Haijiano stopped the declaration and signing of biotin products of various specifications for about 1 month.

Dafeng Haijianuo Pharmaceutical Co., Ltd. (formerly known as Dafeng Dixinuo Pharmaceutical Co., Ltd.), established in 2006, is located in Yancheng City, Jiangsu Province, and is an enterprise mainly engaged in the manufacture of chemical raw materials and chemical products.