Nicechem Co., Ltd
- China. Manufacturers of chitosan for food, textile, medical, tabacco and agricultural applications. Detailed descriptions of chemical structure, and technical specifications.
- http://www.nicechem.net/

Marinard Biotech, Inc
- Canada. Development and manufacture of chitosan fiber, through de-acetylation of chitine, for textile, pulp and paper, food, agriculture, biomedical and biotechnological, waste water treatment, cosmetic and pharmaceutical applications. Descriptions of the
- http://www.marinard.com/