Primex, Agratech, ADVANCED BIOPOLYMERS, Novamatrix, Bioline, Fuda, Fengrun, Golden Shell, Huashan, Haixin, Haizhiyuan, Haidebei Marine, Hecreat, FMC Corp, Kitozyme, Kunpoong Bio, Heppe Medical Chitosan, Yaizu Suisankagaku, Lushen Bioengineering, AK BIOTECH, Yunzhou, Zhejiang New Fuda Ocean Biotech, Weifang Sea Source Biological Products, Qingdao Honghai Bio-tech, Haidebei Marine Bioengineering, Jiangsu Aoxin Biotechnology, Jinhu Crust Product