Are Yi Kexin and Yi D Xin the same manufacturer?

It is a manufacturer. Yiweixin and Yiweixin are both vitamin D brands under Shandong Dyne Marine Biopharmaceutical Co., Ltd., so Yiweixin and Yiweixin are one manufacturer. Shandong dyne marine biopharmaceuticals co., ltd was established on19941kloc-0/October 27th, and its address is located at Fuyuan south road, Rongcheng city, Shandong province.