About Us


GUANGDONG HIZENSE SEAWEED BIOLOGICAL TECHNOLOGY CO. ,LTD. (formerly known as CHENGHAI AGAR FACTORY OF SHANTOU CITY) is a private technology company and a leading fishery company in Shantou city, which has been engaged in the cultivatioin of gracilaria seaweed and producing high gel strength agar agar powder since 1986; Our production facility covers an area of 10,000 square meters and the main product is: "Haizhen" brand agar agar powder.

We are dedicated in the research and development(R&D) of the industry's science and technology, as well as the promotion of its achievements. We have successively cooperated with Shantou University, China Ocean University, and Shantou Fisheries Research Institute. We have an advanced technology R&D laboratory and a number of  experienced R&D staffs. We have the know-how of agar deep refining, which is in the lead among domestic manufacturers. We are specialized in the production of agar agar powder with very rich production experience and technology. We have been qualified with the ISO22000 food safety management system certification, and established full set of product quality control standards by ourselves, all of which are higher than the Indicators stated in the national standard GB 1886.239-2016. Due to the stable supply of high quality, most of our products have been exported to Japan, the United States, Europe, the Middle East, Southeast Asia and other countries (regions). We have received deep trust and high  praise from our customers. Our "Haizhen" brand has been increasingly recognized by the society.