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Cyanotech Corp. engages in the cultivation, production, and sale of natural products derived from microalgae for the health and human nutrition markets worldwide. Its products include BioAstin Hawaiian Astaxanthin, a dietary antioxidant, which is used as a human dietary supplement and dietary ingredient to support and maintain the body's natural inflammatory response, enhance skin, and support eye, joint, and immune health; and Hawaiian Spirulina Pacifica, a nutrient-rich dietary supplement that is used for extra energy, a strengthened immune system, cardiovascular benefits, and as a source of antioxidant carotenoids. The company was founded by Gerald R. Cysewski in 1983 and is headquartered in Kailua-Kona, HI.

Happiness Development Group Limited engages in the research, development, manufacture, and sale of nutraceutical and dietary supplement products in the People's Republic of China and internationally. The company's product category includes lucidum spore powders, cordyceps mycelia, Ejiao products, American ginseng products, other traditional Chinese herbal and animal extracts, vitamins, minerals, and amino acids. It also offers product marketing and e-commerce agency operation services under the Happy Buy platform to small and middle size businesses; and e-commerce solutions, internet information, and advertising services to the online stores or manufactures. In addition, the company provides secure transaction environment, automobile procurement, and financial services for automobile manufacturers under the Taochejun automobile sales platform. It sells its products through distributors, large-scale chain drugstores, malls, and supermarkets under the Happiness brand. The company was formerly known as Happiness Biotech Group Limited and changed its name to Happiness Development Group Limited in October 2022. Happiness Development Group Limited was founded in 2004 and is headquartered in Nanping, the People's Republic of China.

Mannatech, Incorporated operates as a health and wellness company worldwide. It develops, markets, and sells nutritional supplements; topical and skin care, and anti-aging products; and weight-management and fitness products. The company primarily sells its products directly, as well as through e-commerce and network marketing channels. Mannatech, Incorporated was founded in 1993 and is headquartered in Flower Mound, Texas.

Natural Alternatives International, Inc. engages in formulating, manufacturing, and marketing nutritional supplements in the United States, Europe, Australia, Asia, Mexico, and Canada. The company operates in two segments, Private-Label Contract Manufacturing, and Patent and Trademark Licensing. It offers private-label contract manufacturing services to companies that market and distribute vitamins, minerals, herbal, and other nutritional supplements, as well as other health care products. The company also provides strategic partnering services, such as customized product formulation, clinical study design and support, manufacturing, marketing support, international regulatory and label law compliance, international product registration, packaging in multiple formats and labeling design, scientific research, proprietary ingredients, customer-specific nutritional product formulation, product testing and evaluation, marketing management, packaging and delivery system design, regulatory review, and international product registration assistance. In addition, it sells beta-alanine ingredient under the CarnoSyn and SR CarnoSyn names. The company manufactures products in various forms, including capsules, tablets, chewable wafers, and powders. Its private-label contract manufacturing customers include companies that market nutritional supplements through direct sales marketing channels, direct to consumer e-commerce channels, and retail stores. The company was founded in 1980 and is headquartered in Carlsbad, California.