As an independent and private company, DIYA BIOCHEM focus on research, manufacture and sales of Food & Feed Additives. Working out of its central office in Hangzhou China, DIYA BIOCHEM consists of 3 divisions: -HANG ZHOU DIYA BIOCHEM IMPORT & EXPORT CO.,LTD. -Healthy (Hangzhou) Husbandry Sci-tech Co., Ltd. -Manufacturing plant.  Activities of DIYA BIOCHEM including two parts: Part 1- Manufacturing With the years history of R&D and manufacturing for Food & Feed Additives, currently we are one of the biggest ...