EVO TECH ASSUMPTION AGREEMENT


         THIS  AGREEMENT  dated this 25th day of May, 2001 between Argo,  Inc. a
Israeli   corporation   ("Assignor");   Safetek  Acquisition  Corp.  a  Delaware
corporation ("Assignee"); and Evo Tech, Inc. ("Evo Tech").

                             W I T N E S S E S T H :

         WHEREAS,  Assignor is a party to that certain  contract  (the "Evo Tech
Consulting  Agreement") dated  ____________  _____,  2001,  between Argo and Evo
Tech, Inc;

         WHEREAS,  Assignor  wishes  to  assign  its  interest  in the Evo  Tech
Consulting  Agreement  to  Assignee,  and  Assignee  is willing  to accept  such
assignment;

         WHEREAS,  Evo Tech is also a party to the Evo Tech Consulting Agreement
between Argo and Evo Tech,  and Evo Tech is willing to consent to the Assignment
by  Assignor  to  Asignee  of  Assignor's  interest  in the Evo Tech  Consulting
Agreement.

                           N O W   T H E R E F O R E ,

         In  consideration  of the  Premises  and for  other  good and  valuable
consideration, the Parties hereto agree that:

         1. Assignor hereby assigns to Assignee, and Assignee hereby irrevocably
and unconditionally assumes, all of the rights,  conditions,  and obligations of
Assignor in the Evo Tech Consulting Agreement between Argo and Evo Tech.

         2.  Evo Tech hereby consents to the foregoing Assignment.




Argo, Inc.                                    Safetek Acquisition, Inc.
(Assignor)                                    (Assignee)

By: ______________________________            By: ______________________________
    Zvi Nachum, President                         Shmuel M. Shneibalg, President



Evo Tech, Inc.

By: ______________________________
    Bosilio Chen, President