International Sustainability Group, Inc. manufactures and markets algae-based nutritional and algae-containing products. The company offers algae-based biomass for human, fish, and animal consumption; algae cakes for livestock and aquaculture products; astaxanthin for use in joint pain relief and treatments of muscular degeneration; omega-3 to prevent heart disease/cancer and boost the immune system; algae oils for producing bio-fuel; and bio-oil, bio-plastic, and carbon reduction and sequestration solutions. It provides nutraceutical and natural products that prevent and treat diseases; and spirulina, a nutrient and protein solution for human dietary functions and malnutrition. The company also offers sports medicine devices to increase mobility and balance, decrease joint pain, define muscle tone, and promote weight loss. It serves nutraceutical, pharmaceutical, and health and wellness markets. The company is based in Malvern, Pennsylvania. As of September 28, 2017, International Sustainability Group, Inc. operates as a subsidiary of Fuquan Capital Corporation, Inc.