Amtech Biotech Co.,Ltd is located in Qiqihar of Heilongjiang,China;established in 2006.We have more than 500 workers.Amtech Biotech Co.,Ltd is the leading world science and technology natural food additive supplier and professional manufacturer.Which have natural preservatives(nisin,natamycin),microbial medium peptone and other natural food additive products.Our main markets is Southern Europe, Northern Europe, Central America, Western Europe, Eastern Asia.