Exhibit 99.2
[SWS Group Letterhead]
January 3, 2006
Mr. Samuel L. Caster
Chairman of the Board
Chief Executive Officer
Mannatech, Inc.
600 South Royal Lane, Suite 200
Coppell, Tx 75019
Dear Sam:
Effective immediately, please accept my resignation as a Director of Mannatech, Inc. I have greatly enjoyed my association with all of you for the past eighteen months.
At the present, however, I cannot commit the time required to be a good director of the company. I would like to express my best wishes to you and everyone at Mannatech for much success in the future.
Sincerely,
/s/ Don Buchholz
Don Buchholz
DB:jms