Liutuan Industrial Park, Changyi City, Shandong Province, China » China
Changyi Haosen Biotechnology Co., Ltd. is a professional factory producing Thiourea dioxide in China. Purity of our product is 99% minimum. Our annual output is 7000metric tons. More than 80% of the whole output has been exported to many countries and regions in the world. Mainly including Europe, America, Korea, Japan, Southeast Asia, Australia, the Mediterranean, etc.
We have professional laboratory to test the quality of each batch strictly, to make sure product for each order is