THIS FIRST AMENDMENT TO EMPLOYMENT AGREEMENT is made and entered into as of the 13th
day of October, 2000 (the "Amendment") to a certain Employment Agreement dated October 27, 1998
("Employment Agreement") by and between Misonix, Inc., a New York corporation, having a place of business
at 1938 New Highway, Farmingdale, New York 11753 ("Employer"), and Michael A. McManus, Jr. with his
address at 100 White Plains Road, Bronxville, New York 10708 ("Executive").
W I T N E S S E T H:
WHEREAS, Executive is employed as President and Chief Executive Officer of Employer under the Employment
WHEREAS, the parties desire to amend the Employment Agreement to continue the employment of Executive
thereunder, subject to, and in accordance with, the terms and conditions of the Employment Agreement as
presently in existence, as modified by the provisions hereof.
NOW, THEREFORE, in consideration of the foregoing and the mutual promises and covenants herein contained,
it is agreed as follows:
1. Term of Employment.
The term of employment as provided in Section 2 of the Employment Agreement, is hereby renewed for a period
of two years, commencing on November 1, 2000 and ending October 31, 2002 (the "First Renewal Term").
2. Section 3 of the Employment Agreement, dealing with Compensation, is
hereby amended as follows:
(a) The annual base salary provided in Section 3(a) shall be Two Hundred and Seventy-Five Thousand
($275,000.00) dollars per annum. The balance of Section 3(a) of the Employment Agreement shall remain in
Section 3(b) of the Employment Agreement is hereby modified to read in its entirety as follows:
"(b) In addition to the compensation set forth in Section 3(a), Executive may receive an annual bonus, solely in
the discretion of the Board of Directors, pursuant to a formula to be mutually agreed upon. Any payments to be
made under this Section shall be paid within 90 days of the end of the calendar year for which such incentive
(c) A new paragrap