<PAGE> 1
Exhibit 24.1
POWER OF ATTORNEY
Each of the undersigned hereby constitutes and appoints Luqman Arnold his
true and lawful attorney-in-fact and agent, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all
capacities, to sign the registration statement on Form F-1 relating to the
registration of medium-term notes issued by UBS AG, to sign any and all
amendments to such registration statement, to sign any abbreviated registration
statement filed pursuant to Rule 462(b) the Securities Act of 1933 and to file
the same, with all exhibits thereto and other documents in connection
therewith, with the Securities and Exchange Commission, granting unto said
attorney-in-fact and agent, full power and authority to do and perform each and
every act and thing requisite and necessary to be done in and about the
premises, as fully for all intents and purposes as he might or could do in
person hereby ratifying and confirming all that said attorney-in-fact and
agent, or his substitutes, may lawfully do or cause to be done by virtue hereof.
<TABLE>
Name Title Date
<S> <C> <C>
/s/ Marcel Ospel
------------------- President and Group Chief September 14, 2000
Marcel Ospel Executive Officer
/s/ Luqman Arnold
------------------- Chief Financial Officer September 14, 2000
Luqman Arnold
/s/ Hugo Schaub
------------------- Group Controller and September 14, 2000
Hugo Schaub Member of Group
Managing Board
/s/ Alex Krauer
------------------- Chairman of Board of September 14, 2000
Alex Krauer Directors
/s/ Alberto Togni
------------------- Vice Chairman of Board September 14, 2000
Alberto Togni of Directors
/s/ Markus Kiindig
------------------- Vice Chairman of Board of September 14, 2000
Markus Kiindig Directors
/s/ Peter Bockli
------------------- Member of Board of September 14, 2000
Peter Bockli Directors
/s/ Rolf A. Meyer
-------------------- Member of Board of September 14, 2000
Rolf A. Meyer Directors
/s/ Hans Peter Ming
------------------- Member of Board of September 14, 2000
Hans Peter Ming Directors
</TABLE>
<PAGE> 2
<TABLE>
<CAPTION>
Name Title Date
---- ----- ----
<S> <C> <C>
/s/ Andreas Reinhart
------------------- Member of Board of September 14, 2000
Andreas Reinhart Directors
/s/ Eric Honegger
------------------- Member of Board of September 14, 2000
Eric Honegger Directors
</TABLE>
