Huakang Biochemical Engineering Group
- China. Wet spun staple fiber and filament for yarn spinning, from soybean protein extract. Also, soybean fiber yarns, fabrics and garment. Detailed technical information on properties and varieties. English and Chinese.
- http://www.soybeanfibre.com/

Harvest SPF Textile Co., Ltd
- China. Development and production of soybean protein fibers for yarn spinning. Also, yarns, fabrics and ready-made garments. Detailed descriptions of properties and characteristics of soybean fibers, yarns and fabrics. On-line job offerings.
- http://www.spftex.com/