Mannatech, Incorporated appointed John A. (Jack) Seifrick (Mr. Seifrick) as a non-employee board member to fill the vacancy on the board created by the retirement of Mr. Eric W. Schrier. As a result of the re-apportionment of classes following Mr. Schrier's retirement from the board, Mr. Seifrick will serve a class III director of the board. Mr. Seifrick was appointed to serve on the associate compliance subcommittee of the nominating/governance and compliance committee as well as the audit and the compensation and stock option plan committees.

Seifrick was also appointed to serve as chair of the science and marketing committee.