Dear Sir or Madam:
Our company is the biggest factory that produces VB12, not agent. . Our company has more than 1000 staffs and our productivity is 12 tons per year .You can see more information in our company  web: www.hebyufeng.com. , you will know our company clearly. We can offer you high quality products, favorable price and enjoyable service. We hope to cooperate and keep business relationship with you .
The price is:
Mecobalamin-Vitamin B12 3000 USD/KG
Cyanocobalamin-Vitamin B12   2000USD/KG
1%   Vitamin B12 Feed Additive UV   13USD/KG         HPLC   24 USD/KG  
If You have MSN, tell me please.
Thanks and Best regards.
Gao Yong