Tengzhou Xiangning Bioengineering Co., Ltd.

Tengzhou Xiangning Bioengineering Co., Ltd. (滕州祥宁生物工程有限公司) develops, produces and sells the food additive carrageenan. It is based in Tengzhou, a county-level city under Zaozhuang in Shandong Province.

The company supplies kappa carrageenan and compound thickener blends built on carrageenan. Its material appears as the named carrageenan source in published food science research, including work on curdlan and carrageenan mixed gels in Food Hydrocolloids and on polysaccharide antibacterial films, which indicates it sells research-grade as well as industrial quantities.