Mannatech Announces 2004 Annual Shareholders' Meeting Results; Proposals Passed with Overwhelming Shareholders' Majority.

Business Editors/Health/Medical Writers

BIOWIRE2K

COPPELL, Texas--(BUSINESS WIRE)--June 8, 2004

Mannatech, Incorporated (Nasdaq:MTEX) held its annual shareholders' meeting on Monday, June 7, 2004. At the meeting, over 85% of the shareholders entitled to vote approved proposals to elect Class II Directors and to ratify the appointment of independent auditors. The shareholders voted to elect Samuel L. Caster, J. Stanley Fredrick, and Patricia A. Wier as Class II Directors of its Board of Directors. These Class II Directors will serve until the earlier of Mannatech's 2007 annual shareholders' meeting or until their disqualification, resignation, death or removal. In addition, shareholders ratified the appointment of PricewaterhouseCoopers LLP as Mannatech's independent auditors for the fiscal year 2004.

At the meeting, Sam Caster, Mannatech's Chairman and CEO discussed recent highlights of the Company's operations including reporting annual net sales of $191.0 million for the year ended December 31, 2003, which was a 35.6% increase as compared to the prior year and Mannatech setting another quarterly net sales record of $58.4 million for the first quarter ended March 31, 2004, which was a 44.3% increase from the same period in 2003. In addition, Mr. Caster was pleased to report that Mannatech's plans to expand into South Korea in the third quarter of 2004 and into Taiwan in the first quarter of 2005 were continuing on track.

About Mannatech, Incorporated

Mannatech, based in Coppell, Texas, is a wellness solution provider that sells its products through a global network-marketing system throughout the United States and the international markets of Canada, Australia, the United Kingdom, Japan and New Zealand. For additional information about Mannatech, please visit its corporate website: www.mannatech.com.

Please Note: This release contains "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, Section 21E of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995. These forward-looking statements generally can be identified by use of phrases or terminology such as "may," "believes," and "plans" or other similar words or the negative of such terminology. Similarly, descriptions of Mannatech's objectives, strategies, plans, goals or targets contained herein are also considered forward-looking statements. Mannatech believes this release should be read in conjunction with all of its filings with the Securities and Exchange Commission and cautions its readers that these forward-looking statements are subject to certain events, risks, uncertainties, and other factors. Some of these factors include, among others, Mannatech's inability to attract and retain associates and members, increases in competition, litigation, regulatory changes, and its planned growth into new international markets. Although Mannatech believes that its expectations, statements, and assumptions reflected in these forward-looking statements are reasonable, it cautions its readers to always consider all of the risk factors and any other cautionary statements carefully in evaluating each forward-looking statement in this release, as well as those set forth in its latest Annual Report on Form 10-K, and other filings filed with the Securities and Exchange Commission, including its current reports on Form 8-K. All of the forward-looking statements contained herein speak only as of the date of this release.