Mannatech, Incorporate, is a multinational firm engaged in multi-level marketing, research, development, and distribution of glyconutrients. Its stock is traded on the NASDAQ exchange. Mannatech was founded in 1994 by Sam Caster and is headquartered in Coppell, Texas. It operates in the United States, Canada, Australia, the United Kingdom, Japan, New Zealand, Republic of Korea, Taiwan, Denmark, Germany and Mexico. In 2006, Forbes magazine named Mannatech the #5 company on its annual list of the "200 Best Small Companies." A 20/20 undercover investigation aired on June 1, 2007 showed Mannatech's independent contractor sales associates teaching sales recruits how to target Mannatech products to patients with specific illnesses in a manner that purportedly does not violate U.S. federal law, including U.S. Food and Drug Administration regulations, by avoiding direct claims that the products cure any particular diseases. In 2008, the company settled an $11.25 million shareholder lawsuit, without admitting fault, which alleged business practices that included allowing false claims about its supplements.