Season's Greetings from Actelion

Corporate news announcement processed and transmitted by Hugin AS.
The issuer is solely responsible for the content of this
announcement.
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Dear all,

Another year is rapidly coming to an end. 2008 was marked by turmoil
in many aspects, but I will remember yet another year of close
contact with you, pleasing both professionally and personally.

I hope that the holiday season ahead will give us the necessary peace
of mind and soul to start anew in 2009.
I very much look forward to another year of working with you. With so
much clinical newsflow ahead, there will be plenty of opportunity for
us to interact.

Thank you very much for your ongoing interest in Actelion and a
festive season!

Please click on the link below to see the Season's Greetings from
Actelion:
http://www.actelion.com/xmas2008/xmas.html

Best regards

Roland Haefeli
VP, Investor Relations and Public Affairs
Member of the Actelion Executive Committee
Actelion Pharmaceuticals Ltd / Gewerbestrasse 16 / CH-4123 Allschwil
/ Switzerland
phone +41 61 565 64 58 / fax +41 61 565 65 07 / mobile +41 79 704 42
15 / from the US: +1 650 624 6936 /
roland.haefeli@actelion.com / www.actelion.com
Address for visitors: Hegenheimermattweg 91

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Actelion Pharmaceuticals Ltd
Gewerbestrasse 16 Allschwil
Switzerland

WKN: 936767; ISIN: CH0010532478; Index: SBIOM, SLIFE, SMCI, SMIEXP,
SMIM, SPI, SPIEX;
Listed: Main Market in SWX Swiss Exchange;
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