About Us


Chongqing Changfeng Biotechnology Co. Ltd

Chongqing Changfeng Biotechnology Co. Ltd, headquarter in Chongqing, founded in 2015, with private and state capital investment, specialized in producing dimethyl dicarbonate (DMDC), with CAS No. 4525-33-1

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The total designed capacity for Chongqing Changfeng Biotechnology is  around 400 tons DMDC per year. It is the largest supplier of DMDC in Aisa and the second largest one all over the world. DMDC produced here can reach the highest quality level in the world, with more than 99.8% purity. This company is operated by an international team, consisting of experts in chemistry, engineering, mechanical and marketing. They are committed to providing a very reliable DMDC to beverage and wine industry, which can protect microorganism without negative effects on its natural flavors and colors. 

In 2018 & 2019, Chongqing Changfeng Biotechnology Co. Ltd has sold its qualified DMDC to more than 10 overseas countries and regions except domestic market. High quality are confirmed and highly appreciated by many end users.

In 2018, Chongqing Changfeng Biotechnology Co. Ltd passed the investigation and obtained ISO9001、ISO22000、ISO14001、ISO45001 certificates.

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